Improvements #32

Job	Run time
Build+test (stable, ubuntu-latest)	12s
Validate external types appearing in public API	1m 5s
Run benchmarks	12s
BoGo test suite	7s
Build+test (stable, windows-latest)	24s
Build+test (stable, macos-latest)	16s
Clippy	21s
Clippy (Nightly)	43s
Build+test (beta, ubuntu-latest)	13s
Measure coverage	1m 3s
Build+test (nightly, ubuntu-latest)	12s
cross-target testing (armv7-linux-androideabi)	53s
Check for documentation errors	11s
Features	8s
cross-target testing (i686-linux-android)	56s
Format	4s
cross-target testing (thumbv7neon-linux-androideabi)	53s
cross-target testing (i586-unknown-linux-gnu)	1m 2s
cross-target testing (i686-unknown-linux-gnu)	50s
Smoke-test fuzzing targets	33s
cross-target testing (riscv64gc-unknown-linux-gnu)	1m 4s
Format (unstable)	21s
Check minimum versions of direct dependencies	18s
cross-target testing (s390x-unknown-linux-gnu)	51s
MSRV	13s
cross-target testing (aarch64-linux-android)	59s
Run openssl-tests	7s
Check semver compatibility	7s
	14m 18s

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