45

[RAprogramm]

Closes #45

Problem

Fuzzing workflow failed with error:

error: sanitizer is incompatible with statically linked libc, disable it using `-C target-feature=-crt-static`

error[E0463]: can't find crate for `std`
  = note: the `x86_64-unknown-linux-musl` target may not be installed

Root cause: cargo-fuzz automatically selects x86_64-unknown-linux-musl target which uses static libc linking, incompatible with ASAN sanitizer (-Zsanitizer=address).

Failed run: https://github.com/RAprogramm/cstring-array/actions/runs/18640282197

Solution

Use x86_64-unknown-linux-gnu target instead of musl.

Changes

Added to workflow:

1. Install gnu target step
2. Explicit --target x86_64-unknown-linux-gnu flag in cargo fuzz command

Before:

- name: Install cargo-fuzz
  uses: taiki-e/install-action@v2
  with:
    tool: cargo-fuzz

- name: Run fuzzer
  run: cargo fuzz run ${{ matrix.target }} -- -max_total_time=300

After:

- name: Install cargo-fuzz
  uses: taiki-e/install-action@v2
  with:
    tool: cargo-fuzz

- name: Add gnu target
  run: rustup target add x86_64-unknown-linux-gnu

- name: Run fuzzer
  run: cargo fuzz run ${{ matrix.target }} --target x86_64-unknown-linux-gnu -- -max_total_time=300

Benefits

• Fuzzing works with ASAN sanitizer
• Better memory safety testing
• CI passes successfully

Testing

• Tested locally with cargo +nightly fuzz run fuzz_new_from_strings --target x86_64-unknown-linux-gnu -- -max_total_time=10
• No sanitizer errors
• Fuzzing completes successfully
• Will be validated by CI workflow run