build

Cleanup internal `set_impl` in filesystem/memorystore #747

Job	Run time
build_and_test_windows	3m 39s
build_and_test_macos (macos-13)	1m 34s
clippy	38s
build_and_test_macos (macos-latest)	57s
build_and_test (stable, --features "")	1m 33s
fmt	32s
build_and_test (stable, --all-features)	2m 6s
build_and_test (stable, --no-default-features)	1m 4s
semver	1m 38s
codecov	1m 21s
build_and_test (1.77, --features "")	1m 29s
build_and_test (1.77, --all-features)	2m 10s
minimal-versions	43s
build_and_test (1.77, --no-default-features)	1m 16s
build_and_test (beta, --features "")	1m 23s
build_and_test (beta, --all-features)	1m 56s
build_and_test (beta, --no-default-features)	1m 6s
build_and_test (nightly, --features "")	1m 11s
build_and_test (nightly, --all-features)	1m 33s
build_and_test (nightly, --no-default-features)	48s
	28m 37s

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