Builds #1641

Job	Run time
prepare	8s
macos	2h 13m 43s
linux	1h 37m 40s
linux-asserts	1h 53m 33s
msys2 (mingw64)	2h 20m 11s
msys2 (clang64)	1h 56m 16s
test-openmp	0s
test-ffmpeg	0s
test-compiler-rt	0s
test-toolchain	0s
test-libcxx	0s
linux-cross-aarch64	0s
linux-cross-windows	0s
linux-test-cross-build-ffmpeg (i686)	6m 23s
linux-test-cross-build-ffmpeg (x86_64)	7m 28s
linux-test-cross-build-ffmpeg (aarch64)	6m 7s
linux-test-cross-build-ffmpeg (armv7)	5m 29s
upload-nightly	0s
	10h 26m 58s

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