test

Immer persist #351

Job	Run time
build	14m 48s
docs	1m 7s
check (Debug, gnu-6, 14)	2m 55s
build-spm	53s
check (Debug, gnu-7, 14)	2m 59s
check (Debug, llvm-5, 14)	2m 35s
check (Debug, llvm-6, 14)	2m 41s
check (Release, gnu-6, 14)	3m 44s
check (Release, gnu-7, 14)	3m 46s
check (Release, llvm-5, 14)	3m 52s
check (Release, llvm-6, 14)	4m 8s
check (Debug, gnu-9, 14, coverage)	3m 38s
check (Debug, gnu-8, 17)	3m 0s
check (Debug, llvm-9, 17, fuzzers)	3m 55s
check (Debug, gnu-11, 20)	3m 27s
check (Debug, llvm-13, 20)	3m 1s
check (Debug, llvm-8, 14, sanitize)	3m 45s
check (Release, gnu-9, 14, benchmark)	18m 29s
check (Release, llvm-10, 14, benchmark)	18m 47s
	1h 41m 30s

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