Merge 0.4.x #3090

Job	Run time
check-docs	22s
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	1m 9s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	19s
cross-targets (x86_64-unknown-illumos)	1m 27s
alternative_targets (ubuntu-latest, aarch64-linux-android)	19s
cross-tests (ubuntu-latest)	2m 9s
features_check (ubuntu-latest)	6m 20s
rust_msrv (ubuntu-latest)	3m 29s
no_std (ubuntu-latest, thumbv6m-none-eabi)	21s
rust_versions (ubuntu-latest, stable)	2m 18s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	13s
test_wasi (ubuntu-latest, wasm32-wasi)	32s
rust_versions (ubuntu-latest, beta)	1m 13s
test_wasm (ubuntu-latest)	49s
rust_versions (ubuntu-latest, nightly)	1m 36s
timezones (ubuntu-latest, ACST-9:30)	1m 31s
timezones (ubuntu-latest, EST4)	1m 42s
timezones (ubuntu-latest, UTC0)	1m 33s
timezones (ubuntu-latest, Asia/Katmandu)	1m 51s
timezones (macos-latest, ACST-9:30)	1m 2s
timezones (macos-latest, EST4)	55s
timezones (macos-latest, UTC0)	1m 54s
timezones (macos-latest, Asia/Katmandu)	1m 21s
timezones (windows-latest, ACST-9:30)	2m 15s
timezones (windows-latest, EST4)	2m 13s
timezones (windows-latest, UTC0)	1m 57s
timezones (windows-latest, Asia/Katmandu)	2m 20s
	43m 10s

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