Test

Tweak `Error` representation #1877

Job	Run time
Cross (aarch64-unknown-linux-gnu)	26s
Cross (powerpc-unknown-linux-gnu)	25s
FreeBSD VM	3m 52s
iOS Simulator	3m 58s
Linux (x86_64-unknown-linux-musl)	23s
Linux (i686-unknown-linux-musl)	14s
OpenBSD VM	2m 9s
Sanitizer	41s
Tier 1 (ubuntu-24.04, nightly)	15s
WASI	24s
Tier 1 (ubuntu-24.04, beta)	14s
Web	46s
Tier 1 (ubuntu-24.04, stable)	11s
Web with Atomics	59s
Tier 1 (ubuntu-24.04, 1.63)	17s
Windows (stable-x86_64-gnu)	51s
Tier 1 (windows-2022, nightly)	40s
Windows (stable-i686-gnu)	47s
Tier 1 (windows-2022, beta)	59s
Windows 7 (on Windows 10)	1m 36s
Windows (stable-i686-msvc)	51s
Tier 1 (windows-2022, stable)	1m 37s
Tier 1 (windows-2022, 1.63)	1m 2s
Tier 1 (macos-14, stable)	24s
	24m 1s

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