New formatting API #3389

Job	Run time
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	13s
check-docs	19s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	11s
cross-targets (x86_64-unknown-illumos)	1m 3s
alternative_targets (ubuntu-latest, aarch64-linux-android)	11s
cross-tests (ubuntu-latest)	1m 12s
features_check (ubuntu-latest)	15s
no_std (ubuntu-latest, thumbv6m-none-eabi)	13s
rust_msrv (ubuntu-latest)	23s
rust_versions (ubuntu-latest, stable)	29s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	21s
test_wasi (ubuntu-latest, wasm32-wasi)	10s
rust_versions (ubuntu-latest, beta)	37s
rust_versions (ubuntu-latest, nightly)	46s
test_wasm (ubuntu-latest)	14s
timezones (ubuntu-latest, ACST-9:30)	8s
timezones (ubuntu-latest, EST4)	11s
timezones (ubuntu-latest, UTC0)	2s
timezones (ubuntu-latest, Asia/Katmandu)	9s
timezones (macos-latest, ACST-9:30)	17s
timezones (macos-latest, EST4)	21s
timezones (macos-latest, UTC0)	11s
timezones (macos-latest, Asia/Katmandu)	17s
timezones (windows-latest, ACST-9:30)	18s
timezones (windows-latest, EST4)	21s
timezones (windows-latest, UTC0)	9s
timezones (windows-latest, Asia/Katmandu)	17s
	9m 18s

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