cargo-mutants 24.2.1: --features option, --timeout-multiplier, and some small fixes

[sourcefrog]

https://github.com/sourcefrog/cargo-mutants/releases/tag/v24.2.1

24.2.1

• New: --features, --no-default-features and --all-features options are passed through to Cargo.

• Changed: Minimum Rust version (to build cargo-mutants, not to use it) increased to 1.73.

• New: Warn if nextest returns an exit code indicating some failure other than test failure, such as an internal error in nextest.

• New: json output includes the exit code of subprocesses, and the signal if it was killed by a signal.

• Changed: Set INSTA_FORCE_PASS=0 (in addition to previously INSTA_UPDATE=no) when running tests, so that tests that use the Insta library don't write updates back into the source directory, and so don't falsely pass.

• New: --timeout-multiplier option allows setting the timeout for mutants to be a multiple of the baseline timeout, rather than a fixed time.