Merge 0.4.x #3230

Job	Run time
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	22s
check-docs	23s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	17s
cross-targets (x86_64-unknown-illumos)	1m 3s
alternative_targets (ubuntu-latest, aarch64-linux-android)	12s
cross-tests (ubuntu-latest)	2m 0s
features_check (ubuntu-latest)	6m 1s
no_std (ubuntu-latest, thumbv6m-none-eabi)	16s
rust_msrv (ubuntu-latest)	1m 12s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	11s
rust_versions (ubuntu-latest, stable)	1m 5s
test_wasi (ubuntu-latest, wasm32-wasi)	29s
rust_versions (ubuntu-latest, beta)	1m 10s
test_wasm (ubuntu-latest)	23s
rust_versions (ubuntu-latest, nightly)	1m 4s
timezones (ubuntu-latest, ACST-9:30)	1m 27s
timezones (ubuntu-latest, EST4)	1m 29s
timezones (ubuntu-latest, UTC0)	1m 20s
timezones (ubuntu-latest, Asia/Katmandu)	1m 38s
timezones (macos-latest, ACST-9:30)	55s
timezones (macos-latest, EST4)	56s
timezones (macos-latest, UTC0)	58s
timezones (macos-latest, Asia/Katmandu)	54s
timezones (windows-latest, ACST-9:30)	2m 29s
timezones (windows-latest, EST4)	1m 49s
timezones (windows-latest, UTC0)	1m 49s
timezones (windows-latest, Asia/Katmandu)	2m 40s
	34m 32s

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