WIP: Debug powerpc64le builds #625

Job	Run time
linux (x86_64-unknown-linux-gnu)	7m 39s
linux-powerpc (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	7m 55s
linux-arm (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	7m 56s
linux-s390x (s390x-unknown-linux-gnu, s390x)	7m 38s
linux-powerpc (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	8m 0s
linux-arm (armv7-unknown-linux-gnueabihf, armv7)	7m 57s
linux-arm (arm-unknown-linux-musleabihf, arm)	7m 57s
linux (i686-unknown-linux-gnu)	7m 42s
macos-aarch64	7m 56s
macos-x86_64	7m 56s
musllinux (x86_64-unknown-linux-musl)	7m 7s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	7m 55s
sdist	8m 7s
musllinux (i686-unknown-linux-musl)	7m 56s
windows (x86_64-pc-windows-msvc, x64)	7m 59s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	7m 55s
windows (i686-pc-windows-msvc, x86)	7m 59s
musllinux-cross (powerpc64le-unknown-linux-musl, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16, nightl...	5m 37s
	2h 19m 11s

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