`addrindex` chokes on startup about addrindexrs HOT 1 OPEN

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { message: "IO error: While open a file for random read: ./db/mainnet/000011.sst: Too many open files" }', src/store.rs:180:41
stack backtrace:
   0:     0x5625a30972cc - std::backtrace_rs::backtrace::libunwind::trace::hc8c748621e1717dc
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x5625a30972cc - std::backtrace_rs::backtrace::trace_unsynchronized::h1657ffb548bcd1c0
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x5625a30972cc - std::sys_common::backtrace::_print_fmt::ha3920362e42412b1
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x5625a30972cc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h55a64e3639141d5c
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x5625a305ffdf - core::fmt::write::h8a6836b78d5c6e17
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/core/src/fmt/mod.rs:1254:17
   5:     0x5625a30a4214 - std::io::Write::write_fmt::h74083ba874a8bcaf
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/io/mod.rs:1698:15
   6:     0x5625a309709f - std::sys_common::backtrace::_print::he2a2a37b05e7e764
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x5625a309709f - std::sys_common::backtrace::print::hf1818e0fa9ba5bd4
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x5625a30a18ce - std::panicking::default_hook::{{closure}}::h36f8b00cf3f70373
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/panicking.rs:269:22
   9:     0x5625a30a2440 - std::panicking::default_hook::h0999e9f322268afa
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/panicking.rs:288:9
  10:     0x5625a30a2440 - std::panicking::rust_panic_with_hook::hf0f1736a09665bd3
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/panicking.rs:691:13
  11:     0x5625a3097674 - std::panicking::begin_panic_handler::{{closure}}::h9c059812511f285d
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/panicking.rs:582:13
  12:     0x5625a30975d6 - std::sys_common::backtrace::__rust_end_short_backtrace::haeaaa791abdbfc5f
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/sys_common/backtrace.rs:150:18
  13:     0x5625a30a1cd1 - rust_begin_unwind
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/std/src/panicking.rs:578:5
  14:     0x5625a2f92f02 - core::panicking::panic_fmt::h42c1b10c64151f1e
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/core/src/panicking.rs:67:14
  15:     0x5625a2f92db2 - core::result::unwrap_failed::h4b24ec377bba078a
                               at /build/rustc-wAuwbs/rustc-1.70.0+dfsg0ubuntu1~bpo2/library/core/src/result.rs:1687:5
  16:     0x5625a3012c7d - addrindexrs::index::Index::update::h78670cc0abfcdaa3
  17:     0x5625a304ad2f - addrindexrs::main::hf431db5176d0f17b
  18:     0x5625a3050a53 - std::sys_common::backtrace::__rust_begin_short_backtrace::h353b19ded732b44f
  19:     0x5625a3045e67 - main
  20:     0x7f25a8429d90 - <unknown>
  21:     0x7f25a8429e40 - __libc_start_main
  22:     0x5625a2fc8f35 - _start
  23:                0x0 - <unknown>