Build for aarch64-unknown-linux-gnu fails due to "Target architecture is not supported by SIMD features of this crate. Disable the default simd feature" in some circumstances

[V0ldek]

Describe the bug
Reported in NixOS/nixpkgs#223333

Build fails on architectures not supporting SIMD because aligners is compiled with the simd feature unconditionally.

The real riddle here is why the CI pipeline for aarch64-unknown-linux-gnu succeeds. No idea as of now.

MRE
Repro is hard currently, but it can be seen here: NixOS/nixpkgs#223333 (comment)

Expected behavior

1. Code compiles with aligners/simd disabled.
2. Issues like these are caught during release.

Workarounds (optional)
I don't think there is one? You can enable features of a dependency by passing --features dep/feat, but there doesn't seem to be a flag to disable default features of a dependency.

Proposed solution (optional)
Fix is simple, pass the feature flag to aligners in Cargo.toml, BUT before merging that we absolutely need to get a repro in the CI pipeline. That this wasn't caught earlier is weird and unacceptable.

Desktop (please complete the following information):

• Rust version: 1.68.1
• Target triple: aarch64-unknown-linux-gnu
• Features: --no-default-features --features=default-optimizations
• Version: v0.3.2

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[V0ldek]

Locally it easily repros with RUSTFLAGS="" cargo build --target aarch64-unknown-linux-gnu --no-default-features --features default-optimizations