tests .to_rfc2822 panics #3517

Job	Run time
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	11s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	10s
cross-targets (x86_64-unknown-illumos)	58s
alternative_targets (ubuntu-latest, aarch64-linux-android)	9s
cross-tests (ubuntu-latest)	1m 39s
features_check (ubuntu-latest)	4m 2s
no_std (ubuntu-latest, thumbv6m-none-eabi)	9s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	14s
rust_msrv (ubuntu-latest)	1m 25s
rust_versions (ubuntu-latest, stable)	1m 4s
test_wasi (ubuntu-latest, wasm32-wasi)	22s
rust_versions (ubuntu-latest, beta)	1m 3s
rust_versions (ubuntu-latest, nightly)	1m 6s
test_wasm (ubuntu-latest)	24s
timezones (ubuntu-latest, ACST-9:30)	1m 22s
check-docs	21s
timezones (ubuntu-latest, EST4)	1m 25s
timezones (ubuntu-latest, UTC0)	1m 18s
timezones (ubuntu-latest, Asia/Katmandu)	1m 25s
timezones (macos-latest, ACST-9:30)	32s
timezones (macos-latest, EST4)	31s
timezones (macos-latest, UTC0)	45s
timezones (macos-latest, Asia/Katmandu)	32s
timezones (windows-latest, ACST-9:30)	1m 58s
timezones (windows-latest, EST4)	1m 40s
timezones (windows-latest, UTC0)	2m 4s
timezones (windows-latest, Asia/Katmandu)	2m 50s
	29m 39s

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