test

Immer persist #409

Job	Run time
build-spm	33s
build	59s
check (Debug, gnu-6, 14)	3m 4s
docs	1m 11s
check (Debug, gnu-7, 14)	2m 58s
check (Debug, llvm-5, 14)	2m 44s
check (Debug, llvm-6, 14)	2m 42s
check (Release, gnu-6, 14)	3m 48s
check (Release, gnu-7, 14)	3m 52s
check (Release, llvm-5, 14)	3m 56s
check (Release, llvm-6, 14)	4m 19s
check (Debug, gnu-9, 14, coverage)	4m 6s
check (Debug, gnu-8, 17)	3m 2s
check (Debug, llvm-9, 17, fuzzers)	4m 1s
check (Debug, gnu-11, 20)	3m 34s
check (Debug, llvm-13, 20)	3m 31s
check (Debug, llvm-8, 14, sanitize)	3m 48s
check (Release, gnu-9, 14, benchmark)	18m 20s
check (Release, llvm-10, 14, benchmark)	18m 37s
	1h 29m 5s

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