refactor: simplify async op error construction #3785

Job	Run time
compute-jobs	1s
build-linux / linux test	3m 57s
build-linux / linux coverage	4m 2s
build-linux / linux lint	1m 4s
build-linux / linux lint-deps	1m 47s
build-linux / linux test-miri	6m 51s
build-linux / linux test-ops	6m 4s
build-linux / linux test-publish	1m 34s
build-linux / linux test-valgrind	21s
build-linux-arm / linux-arm test	6m 20s
build-linux-arm / linux-arm test-miri	11m 19s
build-linux-arm / linux-arm lint	1m 40s
build-macos / macos lint	1m 5s
build-macos / macos test	3m 6s
build-windows / windows lint	4m 18s
build-windows / windows test	8m 45s
success	1s
	1h 2m 15s

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