Test more aggressive length limits #359

Job	Run time
fuzz_read	30m 26s
Build and test (ubuntu-latest, stable)	41s
Checking fmt and docs	22s
Build and test (ubuntu-latest, 1.67.0)	3m 57s
fuzz_read_with_no_features	55m 57s
clippy	30s
Build and test (ubuntu-latest, nightly)	50s
Build and test (macOS-latest, stable)	2m 17s
fuzz_write	5h 31m 44s
fuzz_write_with_no_features	2m 17s
Build and test (macOS-latest, 1.67.0)	5m 48s
Build and test (macOS-latest, nightly)	2m 16s
Build and test (windows-latest, stable)	2m 52s
Build and test (windows-latest, 1.67.0)	5m 43s
Build and test (windows-latest, nightly)	1m 40s
	7h 27m 20s

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