Merge branch 'nogil_settrace' into nogil-integration #65

Job	Run time
i686-pc-windows-msvc/msvc (Debug)	17m 37s
i686-pc-windows-msvc/msvc (Release)	22m 37s
x86_64-pc-windows-msvc/msvc (Debug)	17m 32s
x86_64-pc-windows-msvc/msvc (Release)	21m 45s
aarch64-pc-windows-msvc/msvc (Debug)	4m 53s
aarch64-pc-windows-msvc/msvc (Release)	5m 9s
x86_64-apple-darwin/clang (Debug)	14m 14s
x86_64-apple-darwin/clang (Release)	15m 28s
aarch64-apple-darwin/clang (Debug)	8m 33s
aarch64-apple-darwin/clang (Release)	13m 29s
x86_64-unknown-linux-gnu/gcc (Debug)	7m 53s
x86_64-unknown-linux-gnu/gcc (Release)	17m 54s
x86_64-unknown-linux-gnu/clang (Debug)	8m 13s
x86_64-unknown-linux-gnu/clang (Release)	13m 45s
aarch64-unknown-linux-gnu/gcc (Debug)	1h 3m 30s
aarch64-unknown-linux-gnu/gcc (Release)	49m 44s
aarch64-unknown-linux-gnu/clang (Debug)	59m 59s
aarch64-unknown-linux-gnu/clang (Release)	34m 18s
	6h 36m 33s

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