Get process output from Malt, instead of capturing it ourselves #182

Job	Run time
test (1, x86, ubuntu-latest)	1m 47s
test (min, default, macOS-latest)	31s
test (1, default, windows-latest)	2m 34s
test (pre, default, windows-latest)	2m 22s
test (1, default, ubuntu-latest)	1m 40s
test (min, x86, ubuntu-latest)	22s
test (min, default, windows-latest)	46s
test (min, default, ubuntu-latest)	19s
test (pre, default, macOS-latest)	2m 2s
test (1, default, macOS-latest)	1m 51s
test (nightly, default, macOS-latest)	1m 59s
test (1, x86, windows-latest)	2m 34s
test (nightly, x86, ubuntu-latest)	2m 11s
test (pre, x86, windows-latest)	2m 32s
test (pre, x86, ubuntu-latest)	2m 6s
test (nightly, default, windows-latest)	2m 29s
test (nightly, default, ubuntu-latest)	1m 42s
test (nightly, x86, windows-latest)	3m 15s
test (min, x86, windows-latest)	52s
test (pre, default, ubuntu-latest)	1m 44s
	35m 38s

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