test

Immer persist #450

Job	Run time
build-spm	17s
build	20m 50s
check (Debug, gnu-6, 14)	3m 9s
check (Debug, gnu-7, 14)	3m 5s
docs	1m 10s
check (Debug, llvm-5, 14)	2m 54s
check (Debug, llvm-6, 14)	2m 51s
check (Release, gnu-6, 14)	3m 47s
check (Release, gnu-7, 14)	3m 44s
check (Release, llvm-5, 14)	4m 6s
check (Release, llvm-6, 14)	4m 15s
check (Debug, gnu-9, 14, coverage)	4m 8s
check (Debug, gnu-8, 17)	3m 8s
check (Debug, llvm-9, 17, fuzzers)	4m 10s
check (Debug, gnu-11, 20)	3m 33s
check (Debug, llvm-13, 20)	3m 11s
check (Debug, llvm-8, 14, sanitize)	4m 3s
check (Release, gnu-9, 14, benchmark)	18m 42s
check (Release, llvm-10, 14, benchmark)	18m 59s
	1h 50m 2s

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