Comments (12)
Completely unrelated to your issue but here's a little function I picked up from someone somewhere that generates random letters way faster than a comprehension with string.ascii_letters
def gen_long_string(str_len=10, n_rows=10_000_000):
rng = np.random.default_rng()
return rng.integers(low=96, high=122, size=n_rows * str_len, dtype="uint32").view(
f"U{str_len}"
)
if you want str_len to be random then you'd have to tweak that though.
from polars.
Relevant backtrace:
Thread 18 (Thread 0x7fffbddfe6c0 (LWP 30603) "polars-1"):
#0 0x00007ffff3155961 in polars_arrow::buffer::immutable::Buffer<u8>::as_slice<u8> (self=0x7fff70bb4488) at crates/polars-arrow/src/buffer/immutable.rs:118
#1 0x00007ffff3159dce in polars_arrow::buffer::immutable::{impl#9}::deref<u8> (self=0x7fff70bb4488) at crates/polars-arrow/src/buffer/immutable.rs:283
#2 0x00007ffff32b366b in polars_arrow::array::growable::binview::{impl#0}::hash<ahash::fallback_hash::AHasher> (self=0x7fffbddf5040, state=0x7fffbddf4fd8) at crates/polars-arrow/src/array/growable/binview.rs:22
#3 0x00007ffff31e5d7f in indexmap::map::IndexMap<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState>::hash<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, polars_arrow::array::growable::binview::BufferKey> (self=0x7fffbddf5838, key=0x7fffbddf5040) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:530
#4 0x00007ffff31e59e5 in indexmap::map::IndexMap<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState>::insert_full<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState> (self=0x7fffbddf5838, key=..., value=()) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:414
#5 0x00007ffff31e5dd3 in indexmap::map::IndexMap<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState>::insert<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState> (self=0x7fffbddf5838, key=..., value=()) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:398
#6 0x00007ffff31e547c in indexmap::map::{impl#14}::extend::{closure#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>> () at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:1365
#7 0x00007ffff304e39e in core::iter::traits::iterator::Iterator::for_each::call::{closure#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{--Type <RET> for more, q to quit, c to continue without paging--
closure_env#1}<str>>>>>> (item=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:814
#8 0x00007ffff338b671 in core::iter::adapters::map::map_fold::{closure#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>> (acc=(), elt=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#9 0x00007ffff337c52c in core::ops::function::impls::{impl#3}::call_mut<((), polars_arrow::array::growable::binview::BufferKey), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (self=0x7fffbddf5200, args=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/ops/function.rs:294
#10 0x00007ffff33922c1 in core::iter::adapters::map::map_fold::{closure#0}<&polars_arrow::buffer::immutable::Buffer<u8>, polars_arrow::array::growable::binview::BufferKey, (), polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>, &mut core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (acc=(), elt=0x7fff70bb4488) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#11 0x00007ffff32141af in core::slice::iter::{impl#181}::fold<polars_arrow::buffer::immutable::Buffer<u8>, (), core::iter::adapters::map::map_fold::{closure_env#0}<&polars_arrow::buffer::immutable::Buffer<u8>, polars_arrow::array::growable::binview::BufferKey, (), polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>, &mut core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>> (self=..., init=(), f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/slice/iter/macros.rs:232
#12 0x00007ffff335b393 in core::iter::adapters::map::{impl#2}::fold<polars_arrow::array::growable::binview::BufferKey, core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>, (), &mut core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Itera--Type <RET> for more, q to quit, c to continue without paging--
tor::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (self=..., init=(), g=0x7fffbddf5588) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#13 0x00007ffff3569413 in core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (acc=(), iter=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/flatten.rs:665
#14 0x00007ffff356ab19 in core::iter::adapters::flatten::{impl#33}::iter_fold::flatten::{closure#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>> (acc=(), iter=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/flatten.rs:475
#15 0x00007ffff338a875 in core::iter::adapters::map::map_fold::{closure#0}<&&polars_arrow::array::binview::BinaryViewArrayGeneric<str>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>, core::iter::adapters::flatten::{impl#33}::iter_fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>>> (acc=(), elt=0x7fff70ac8620) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#16 0x00007ffff3211e3b in core::slice::iter::{impl#181}::fold<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>, (), core::iter::adapters::map::map_fold::{closure_env#0}<&&polars_arrow::array::binview::BinaryViewArrayGeneric<str>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>, core::iter::adapters::flatten::{impl#33}::iter_fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{clo--Type <RET> for more, q to quit, c to continue without paging--
sure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>>>> (self=..., init=(), f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/slice/iter/macros.rs:232
#17 0x00007ffff335cf03 in core::iter::adapters::map::{impl#2}::fold<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>, (), core::iter::adapters::flatten::{impl#33}::iter_fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#18 0x00007ffff335683c in core::iter::adapters::fuse::{impl#3}::fold<core::iter::adapters::map::Map<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, (), core::iter::adapters::flatten::{impl#33}::iter_fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>>> (self=..., acc=(), fold=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/fuse.rs:98
#19 0x00007ffff356a951 in core::iter::adapters::flatten::FlattenCompat<core::iter::adapters::map::Map<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>>::iter_fold<core::iter::adapters::map::Map<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::flatten::{impl#35}::fold::flatten::{closure_env#0}<core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>--Type <RET> for more, q to quit, c to continue without paging--
>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>>> (self=..., acc=(), fold=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/flatten.rs:482
#20 0x00007ffff3569397 in core::iter::adapters::flatten::{impl#35}::fold<core::iter::adapters::map::Map<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (self=..., init=(), fold=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/flatten.rs:668
#21 0x00007ffff35692b1 in core::iter::adapters::flatten::{impl#3}::fold<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (polars_arrow::array::growable::binview::BufferKey, ()), (), indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>>> (self=..., init=(), fold=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/flatten.rs:89
#22 0x00007ffff3361a6b in core::iter::adapters::map::{impl#2}::fold<(polars_arrow::array::growable::binview::BufferKey, ()), core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>, (), core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<(polars_arrow::array::growable::binview::BufferKey, ()), indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#23 0x00007ffff3385249 in core::iter::traits::iterator::Iterator::for_each<core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>, indexmap::map::{impl#14}::extend::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryVi--Type <RET> for more, q to quit, c to continue without paging--
ewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>>> (self=..., f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:817
#24 0x00007ffff31e528b in indexmap::map::{impl#14}::extend<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>> (self=0x7fffbddf5838, iterable=...) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:1364
#25 0x00007ffff31e56e3 in indexmap::map::{impl#12}::from_iter<polars_arrow::array::growable::binview::BufferKey, (), ahash::random_state::RandomState, core::iter::adapters::map::Map<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::{impl#9}::from_iter::{closure_env#0}<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>>>> (iterable=...) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/map.rs:1312
#26 0x00007ffff356479b in indexmap::set::{impl#9}::from_iter<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState, core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>> (iterable=...) at /home/ritchie46/.cargo/registry/src/index.crates.io-6f17d22bba15001f/indexmap-2.2.6/src/set.rs:994
#27 0x00007ffff356a6ce in core::iter::traits::iterator::Iterator::collect<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<&polars_arrow::array::binview::BinaryViewArrayGeneric<str>>, core::iter::adapters::map::Map<core::slice::iter::Iter<polars_arrow::buffer::immutable::Buffer<u8>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure#1}::{closure_env#0}<str>>, polars_arrow::array::growable::binview::{impl#3}::new::{closure_env#1}<str>>, indexmap::set::IndexSet<polars_arrow::array::growable::binview::BufferKey, ahash::random_state::RandomState>> (self=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:2003
#28 0x00007ffff32b3883 in polars_arrow::array::growable::binview::GrowableBinaryViewArray<str>::new<str> (arrays=..., capacity=20000) at crates/polars-arrow/src/array/growable/binview.rs:65
#29 0x00007ffff316d67f in polars_arrow::array::growable::make_growable (arrays=..., use_validity=false, capacity=20000) at crates/polars-arrow/src/array/growable/mod.rs:141
#30 0x00007ffff354309a in polars_arrow::array::growable::structure::{impl#0}::new::{closure#2} (i=0) at crates/polars-arrow/src/array/growable/structure.rs:38
#31 0x00007ffff338af4b in core::iter::adapters::map::map_fold::{closure#0}<usize, alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, (), polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>>>> (acc=(), elt=0) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#32 0x00007ffff31e4465 in core::iter::traits::iterator::Iterator::fold<core::ops::range::Range<usize>, (), core::iter::adapters::map::map_fold::{closure_env#0}<usize, alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, (), polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>>>>> (self=..., init=(), f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:2587
#33 0x00007ffff336137f in core::iter::adapters::map::{impl#2}::fold<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}, (), core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#34 0x00007ffff3386e86 in core::iter::traits::iterator::Iterator::for_each<core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>>> (self=..., f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:817
#35 0x00007ffff3101157 in alloc::vec::Vec<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global>::extend_trusted<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>> (self=0x7fffbddf7c80, iterator=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/mod.rs:3047
#36 0x00007ffff314676b in alloc::vec::spec_extend::{impl#1}::spec_extend<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>, alloc::alloc::Global> (self=0x7fffbddf7c80, iterator=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_extend.rs:26
--Type <RET> for more, q to quit, c to continue without paging--
#37 0x00007ffff30e7a23 in alloc::vec::spec_from_iter_nested::{impl#1}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>> (iterator=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_from_iter_nested.rs:62
#38 0x00007ffff31492fe in alloc::vec::spec_from_iter::{impl#0}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>> (iterator=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_from_iter.rs:33
#39 0x00007ffff3141777 in alloc::vec::{impl#15}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>> (iter=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/mod.rs:2921
#40 0x00007ffff338076e in core::iter::traits::iterator::Iterator::collect<core::iter::adapters::map::Map<core::ops::range::Range<usize>, polars_arrow::array::growable::structure::{impl#0}::new::{closure_env#2}>, alloc::vec::Vec<alloc::boxed::Box<dyn polars_arrow::array::growable::Growable, alloc::alloc::Global>, alloc::alloc::Global>> (self=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:2003
#41 0x00007ffff3566e84 in polars_arrow::array::growable::structure::GrowableStruct::new (arrays=..., capacity=20000) at crates/polars-arrow/src/array/growable/structure.rs:36
#42 0x00007ffff316d411 in polars_arrow::array::growable::make_growable (arrays=..., use_validity=false, capacity=20000) at crates/polars-arrow/src/array/growable/mod.rs:125
#43 0x00007ffff34070f6 in polars_arrow::compute::concatenate::concatenate (arrays=...) at crates/polars-arrow/src/compute/concatenate.rs:38
#44 0x00007ffff325e5b8 in polars_arrow::legacy::array::list::AnonymousBuilder::finish (self=..., inner_dtype=...) at crates/polars-arrow/src/legacy/array/list.rs:153
#45 0x00007ffff13ffbb0 in polars_arrow::array::static_array_collect::{impl#26}::arr_from_iter_with_dtype<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::copied::Copied<core::slice::iter::Iter<u32>>, polars_core::chunked_array::ops::gather::gather_idx_array_unchecked::{closure_env#2}<polars_arrow::array::list::ListArray<i64>>>> (dtype=..., iter=...) at crates/polars-arrow/src/array/static_array_collect.rs:867
#46 0x00007ffff0dc0581 in polars_arrow::array::static_array_collect::ArrayFromIterDtype::arr_from_iter_trusted_with_dtype<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::copied::Copied<core::slice::iter::Iter<u32>>, polars_core::chunked_array::ops::gather::gather_idx_array_unchecked::{closure_env#2}<polars_arrow::array::list::ListArray<i64>>>> (dtype=..., iter=...) at crates/polars-arrow/src/array/static_array_collect.rs:28
#47 polars_arrow::array::static_array_collect::ArrayCollectIterExt::collect_arr_trusted_with_dtype<core::iter::adapters::map::Map<core::iter::adapters::copied::Copied<core::slice::iter::Iter<u32>>, polars_core::chunked_array::ops::gather::gather_idx_array_unchecked::{closure_env#2}<polars_arrow::array::list::ListArray<i64>>>, polars_arrow::array::list::ListArray<i64>> (self=..., dtype=...) at crates/polars-arrow/src/array/static_array_collect.rs:181
#48 polars_core::chunked_array::ops::gather::gather_idx_array_unchecked<polars_arrow::array::list::ListArray<i64>> (dtype=..., targets=..., has_nulls=false, indices=...) at crates/polars-core/src/chunked_array/ops/gather.rs:129
#49 0x00007ffff0dc6590 in polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure#0}<polars_core::datatypes::ListType> (idx_arr=0x7fff70a1e100) at crates/polars-core/src/chunked_array/ops/gather.rs:214
#50 0x00007ffff078b1df in core::iter::adapters::map::map_fold::{closure#0}<&polars_arrow::array::primitive::PrimitiveArray<u32>, polars_arrow::array::list::ListArray<i64>, (), polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>, core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>>> (acc=(), elt=0x7fff70a1e100) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#51 0x00007ffff07b1241 in core::iter::adapters::map::map_fold::{closure#0}<&alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, &polars_arrow::array::primitive::PrimitiveArray<u32>, (), polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>, core::iter::adapters::map::map_fold::{closure_env#0}<&polars_arrow::array::primitive::PrimitiveArray<u32>, polars_arrow::array::list::ListArray<i64>, (), polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>, core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::o--Type <RET> for more, q to quit, c to continue without paging--
ps::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>>>> (acc=(), elt=0x7fffbd014010) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:89
#52 0x00007ffff0bb6f3c in core::slice::iter::{impl#181}::fold<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), core::iter::adapters::map::map_fold::{closure_env#0}<&alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, &polars_arrow::array::primitive::PrimitiveArray<u32>, (), polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>, core::iter::adapters::map::map_fold::{closure_env#0}<&polars_arrow::array::primitive::PrimitiveArray<u32>, polars_arrow::array::list::ListArray<i64>, (), polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>, core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>>>>> (self=..., init=(), f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/slice/iter/macros.rs:232
#53 0x00007ffff06847c9 in core::iter::adapters::map::{impl#2}::fold<&polars_arrow::array::primitive::PrimitiveArray<u32>, core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>, (), core::iter::adapters::map::map_fold::{closure_env#0}<&polars_arrow::array::primitive::PrimitiveArray<u32>, polars_arrow::array::list::ListArray<i64>, (), polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>, core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#54 0x00007ffff068591f in core::iter::adapters::map::{impl#2}::fold<polars_arrow::array::list::ListArray<i64>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>, (), core::iter::adapters::map::map_fold::{closure_env#0}<polars_arrow::array::list::ListArray<i64>, alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, (), polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#55 0x00007ffff06635fd in core::iter::adapters::map::{impl#2}::fold<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>, (), core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}--Type <RET> for more, q to quit, c to continue without paging--
::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>>> (self=..., init=(), g=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/adapters/map.rs:129
#56 0x00007ffff072ff06 in core::iter::traits::iterator::Iterator::for_each<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>, alloc::vec::{impl#20}::extend_trusted::{closure_env#0}<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>>> (self=..., f=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:817
#57 0x00007ffff0f24287 in alloc::vec::Vec<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global>::extend_trusted<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>> (self=0x7fffbddfb690, iterator=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/mod.rs:3047
#58 0x00007ffff106093b in alloc::vec::spec_extend::{impl#1}::spec_extend<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>, alloc::alloc::Global> (self=0x7fffbddfb690, iterator=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_extend.rs:26
#59 0x00007ffff0e63393 in alloc::vec::spec_from_iter_nested::{impl#1}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>> (iterator=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_from_iter_nested.rs:62
#60 0x00007ffff10632ce in alloc::vec::spec_from_iter::{impl#0}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>> (iterator=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/spec_from_iter.rs:33
#61 0x00007ffff104dd27 in alloc::vec::{impl#15}::from_iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>> (iter=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/alloc/src/vec/mod.rs:2921
#62 0x00007ffff0718c8e in core::iter::traits::iterator::Iterator::collect<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>, polars_core::chunked_array::from::{impl#1}::from_chunk_iter_like::{closure_env#0}<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::--Type <RET> for more, q to quit, c to continue without paging--
downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>>>, alloc::vec::Vec<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>, alloc::alloc::Global>> (self=<error reading variable: Cannot access memory at address 0x12>) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/iter/traits/iterator.rs:2003
#63 0x00007ffff0cd0e8c in polars_core::chunked_array::ChunkedArray<polars_core::datatypes::ListType>::from_chunk_iter_like<polars_core::datatypes::ListType, core::iter::adapters::map::Map<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::boxed::Box<dyn polars_arrow::array::Array, alloc::alloc::Global>>, polars_core::chunked_array::ops::downcast::{impl#1}::downcast_iter::{closure_env#0}<polars_core::datatypes::UInt32Type>>, polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked::{closure_env#0}<polars_core::datatypes::ListType>>> (ca=0x7fff70a03cd0, iter=...) at crates/polars-core/src/chunked_array/from.rs:126
#64 0x00007ffff0c46bf0 in polars_core::chunked_array::ops::gather::{impl#20}::take_unchecked<polars_core::datatypes::ListType> (self=0x7fff70a03cd0, indices=0x7fffbddfccc8) at crates/polars-core/src/chunked_array/ops/gather.rs:244
#65 0x00007ffff1449876 in polars_core::series::implementations::list::{impl#1}::take_unchecked (self=0x7fff70a03cd0, indices=0x7fffbddfccc8) at crates/polars-core/src/series/implementations/list.rs:97
#66 0x00007ffff28693cd in polars_core::frame::{impl#0}::take_unchecked_impl::{closure#0}::{closure#0} (s=0x7fffbd014030) at crates/polars-core/src/frame/mod.rs:1714
#67 0x00007ffff0d7c7f3 in core::ops::function::impls::{impl#0}::call<(&polars_core::series::Series), (dyn core::ops::function::Fn<(&polars_core::series::Series), Output=polars_core::series::Series> + core::marker::Send + core::marker::Sync)> (self=0x7fffbddfc3b8, args=...) at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/ops/function.rs:262
#68 0x00007ffff0d7ca9f in core::ops::function::impls::{impl#1}::call_mut<(&polars_core::series::Series), &(dyn core::ops::function::Fn<(&polars_core::series::Series), Output=polars_core::series::Series>
from polars.
I can reproduce this on main.
As this is a p-high issue - tagging @ritchie46 seems appropriate.
from polars.
Will take a look tomorrow.
from polars.
@cmdlineluser Thank you for your feedback. Looking at your issue I doubt it is related. Your example faults with minimal data as where my issues is related to the size of data. I'll create a new issue.
from polars.
Is it only slower or does it never release memory? We did a huge rework of our internal string representation, so some stuff might be slower. More stuff sped up though.
from polars.
Trying limit = 100_000
it takes 160 seconds on the latest version - memory usage stays as 4%.
On 0.20.5
it takes 0.5 seconds.
from polars.
Alright, that seems something quadratic. Will look into it.
from polars.
First of all, thank you for your amazing speed! The momentum here is awesome!
Is it only slower or does it never release memory? We did a huge rework of our internal string representation, so some stuff might be slower. More stuff sped up though.
My "production" code always goes OOM with version 0.20.6. In version 0.20.19 it just runs forever and keeps a certain memory level.
from polars.
Hey! I can still create a quadratic behavior. Should I open a new issue or is it fine re-using this one?
import time
import numpy as np
import polars as pl
def gen_long_string(str_len, n_rows):
rng = np.random.default_rng()
return rng.integers(low=96, high=122, size=n_rows * str_len, dtype="uint32").view(
f"U{str_len}"
)
print(pl.__version__)
limit = 30_000
lf1 = pl.LazyFrame({"index1": np.repeat(range(int(limit / 2)), 2), "index2": range(limit)})
lf2 = pl.LazyFrame(
{
"index2": np.repeat(range(limit), 2),
"string": gen_long_string(15, limit * 2),
}
)
lf2 = lf2.group_by("index2").agg(pl.struct(pl.exclude(["index1", "index2"])))
lf1 = lf1.join(lf2, on="index2") # this line is now fast and was previously slow (<0.20.20)
t0 = time.time()
(
lf1
.group_by("index1")
.agg(pl.struct(pl.exclude(["index1"])))
.collect()
)
t1 = time.time()
print(t1 - t0)
It prints around 5 seconds for 0.20.21
and 0.1 seconds for 0.20.5
.
I observed different behavior in my "production" code. While it runs the memory slowly increases instead of staying at a certain level.
from polars.
Hey! Thank you for the extremely fast handling of the issue so far. And sorry to bother you again.
I see OOM issues now after the fix of the quadratic growable.
If I profile the exact same code as above with memory_profiler
I get much higher memory usage with 0.20.22
compared to 0.20.5
.
I searched for out of memory issues but reading through them they seem not related.
Should I create another issue or is it fine to re-use this one?
Code and output
import time
import numpy as np
import polars as pl
from memory_profiler import profile
@profile
def run():
print(pl.__version__)
limit = 500_000
print(limit)
def gen_long_string(str_len, n_rows):
rng = np.random.default_rng()
return rng.integers(low=96, high=122, size=n_rows * str_len, dtype="uint32").view(
f"U{str_len}"
)
lf1 = pl.LazyFrame({"index1": np.repeat(range(int(limit / 2)), 2), "index2": range(limit)})
lf2 = pl.LazyFrame(
{
"index2": np.repeat(range(limit), 2),
"string": gen_long_string(15, limit * 2),
}
)
lf2 = lf2.group_by("index2").agg(pl.struct(pl.exclude(["index1", "index2"])))
lf1 = lf1.join(lf2, on="index2") # this line is now fast and was previously slow (<0.20.20)
t0 = time.time()
(
lf1
.group_by("index1")
.agg(pl.struct(pl.exclude(["index1"])))
.collect() # this line is now fast and was previously slow (<0.20.22) but uses a lot of memory
)
t1 = time.time()
print(t1 - t0)
if __name__ == "__main__":
run()
Output for 0.20.5
0.20.5
500000
keys/aggregates are not partitionable: running default HASH AGGREGATION
join parallel: true
keys/aggregates are not partitionable: running default HASH AGGREGATION
INNER join dataframes finished
1.6011829376220703
Line # Mem usage Increment Occurrences Line Contents
=============================================================
71 119.2 MiB 119.2 MiB 1 @profile
72 def run_min_old():
73 119.2 MiB 0.0 MiB 1 print(pl.__version__)
74 119.2 MiB 0.0 MiB 1 limit = 500_000
75 119.2 MiB 0.0 MiB 1 print(limit)
76
77 152.7 MiB 0.0 MiB 2 def gen_long_string(str_len, n_rows):
78 152.7 MiB 0.0 MiB 1 rng = np.random.default_rng()
79 210.1 MiB 57.3 MiB 2 return rng.integers(low=96, high=122, size=n_rows * str_len, dtype="uint32").view(
80 210.1 MiB 0.0 MiB 1 f"U{str_len}"
81 )
82
83 137.7 MiB 18.5 MiB 1 lf1 = pl.LazyFrame({"index1": np.repeat(range(int(limit / 2)), 2), "index2": range(limit)})
84 240.6 MiB 30.6 MiB 2 lf2 = pl.LazyFrame(
85 210.1 MiB 0.0 MiB 1 {
86 152.7 MiB 15.0 MiB 1 "index2": np.repeat(range(limit), 2),
87 210.1 MiB 0.0 MiB 1 "string": gen_long_string(15, limit * 2),
88 }
89 )
90
91 240.8 MiB 0.1 MiB 1 lf2 = lf2.group_by("index2").agg(pl.struct(pl.exclude(["index1", "index2"])))
92
93 240.8 MiB 0.1 MiB 1 lf1 = lf1.join(lf2, on="index2") # this line is now fast and was previously slow (<0.20.20)
94
95 240.8 MiB 0.0 MiB 1 t0 = time.time()
96 (
97 240.8 MiB 0.0 MiB 1 lf1
98 240.8 MiB 0.0 MiB 1 .group_by("index1")
99 240.8 MiB 0.0 MiB 1 .agg(pl.struct(pl.exclude(["index1"])))
100 477.1 MiB 236.3 MiB 1 .collect()
101 )
102 477.1 MiB 0.0 MiB 1 t1 = time.time()
103 477.1 MiB 0.0 MiB 1 print(t1 - t0)
Output for 0.20.22
0.20.22
500000
keys/aggregates are not partitionable: running default HASH AGGREGATION
join parallel: true
keys/aggregates are not partitionable: running default HASH AGGREGATION
INNER join dataframes finished
2.1314499378204346
Line # Mem usage Increment Occurrences Line Contents
=============================================================
71 118.8 MiB 118.8 MiB 1 @profile
72 def run_min_old():
73 118.8 MiB 0.0 MiB 1 print(pl.__version__)
74 118.8 MiB 0.0 MiB 1 limit = 500_000
75 118.8 MiB 0.0 MiB 1 print(limit)
76
77 147.7 MiB 0.0 MiB 2 def gen_long_string(str_len, n_rows):
78 147.7 MiB 0.0 MiB 1 rng = np.random.default_rng()
79 205.0 MiB 57.3 MiB 2 return rng.integers(low=96, high=122, size=n_rows * str_len, dtype="uint32").view(
80 205.0 MiB 0.0 MiB 1 f"U{str_len}"
81 )
82
83 132.7 MiB 13.9 MiB 1 lf1 = pl.LazyFrame({"index1": np.repeat(range(int(limit / 2)), 2), "index2": range(limit)})
84 258.5 MiB 53.5 MiB 2 lf2 = pl.LazyFrame(
85 205.0 MiB 0.0 MiB 1 {
86 147.7 MiB 15.0 MiB 1 "index2": np.repeat(range(limit), 2),
87 205.0 MiB 0.0 MiB 1 "string": gen_long_string(15, limit * 2),
88 }
89 )
90
91 258.7 MiB 0.2 MiB 1 lf2 = lf2.group_by("index2").agg(pl.struct(pl.exclude(["index1", "index2"])))
92
93 258.9 MiB 0.1 MiB 1 lf1 = lf1.join(lf2, on="index2") # this line is now fast and was previously slow (<0.20.20)
94
95 258.9 MiB 0.0 MiB 1 t0 = time.time()
96 (
97 258.9 MiB 0.0 MiB 1 lf1
98 258.9 MiB 0.0 MiB 1 .group_by("index1")
99 258.9 MiB 0.0 MiB 1 .agg(pl.struct(pl.exclude(["index1"])))
100 5073.8 MiB 4814.9 MiB 1 .collect()
101 )
102 5073.8 MiB 0.0 MiB 1 t1 = time.time()
103 5073.8 MiB 0.0 MiB 1 print(t1 - t0)
from polars.
I would guess that creating a new issue may be the better option here?
From what I have experienced, it is less likely to get a response in a closed issue unless someone is tagged specifically.
I did file #15834 yesterday which is also a list of structs inside .agg()
- it may be a minimal version of this.
(although I couldn't trigger it without quantile
- so it may be unrelated)
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Related Issues (20)
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- Switch over default engine for `read_excel` from `"xlsx2csv"` to `"calamine"`
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