Fix cargo feature 'dump_on_crash' #248

Job	Run time
spell check with typos	5s
docs-pr	10s
build-on-windows (windows-debug)	47s
build-on-linux (linux-kvm-debug)	1s
build-on-windows (windows-release)	37s
build-on-linux (linux-kvm-release)	1s
build-on-linux (linux-hyperv-debug)	59s
build-on-linux (linux-hyperv-release)	52s
fuzzing / fuzz	9m 2s
rust / build (hyperv, amd, debug)	2m 26s
rust / build (hyperv, amd, release)	3m 6s
rust / build (hyperv, intel, debug)	2m 38s
rust / build (hyperv, intel, release)	3m 17s
rust / build (mshv, amd, debug)	3m 21s
rust / build (mshv, amd, release)	4m 8s
rust / build (mshv, intel, debug)	4m 27s
rust / build (mshv, intel, release)	3m 33s
rust / build (kvm, amd, debug)	3m 31s
rust / build (kvm, amd, release)	3m 39s
rust / build (kvm, intel, debug)	3m 27s
rust / build (kvm, intel, release)	3m 14s
	53m 21s

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