Ensuring `no_std` for subtle about subtle HOT 4 CLOSED

I am closing this. I found the issue. substrate-bip39 is integrating schnorrkel with default-features. Thanks for your time!

from subtle.

How did you compile your project exactly?
std is a default feature of subtle, so you should be using cargo build --no-default-features to avoid it.

Just like curve25519-dalek (which relies on subtle) doc says:

The std feature is enabled by default, but it can be disabled for no-std builds using --no-default-features

from subtle.

I am building with my feature runtime-benchmarks which is defined like:

runtime-benchmarks = ["frame-benchmarking", "sp-core/full_crypto", "substrate-bip39", "schnorrkel"]

and schnorrkel is integrate like schnorrkel = { version = "0.9.1", features = ["preaudit_deprecated", "u64_backend"], default-features = false, optional = true }.

from subtle.

Sorry. Exact compilation command is: cargo +nightly run --release --features runtime-benchmarks -- ...

from subtle.