Checkpoint pre-refactor #1085

Job	Run time
clang-sanitizers (,thread)	2m 39s
linux-compat (manylinux1-x64)	1m 56s
linux-compiler-compat (clang-3)	2m 6s
clang-sanitizers (,address,undefined)	2m 40s
linux-compiler-compat (clang-6)	2m 9s
linux-compat (manylinux1-x86)	1m 48s
linux-compiler-compat (clang-8)	2m 9s
linux-compat (manylinux2014-x64)	2m 4s
linux-compiler-compat (clang-9)	2m 9s
linux-compat (manylinux2014-x86)	2m 5s
linux-shared-libs	2m 6s
linux-compiler-compat (clang-10)	2m 10s
linux-compat (al2-x64)	1m 56s
linux-compiler-compat (clang-11)	2m 8s
linux-compat (fedora-34-x64)	2m 2s
linux-compiler-compat (gcc-4.8)	1m 50s
linux-compat (opensuse-leap)	2m 5s
linux-compiler-compat (gcc-5)	2m 7s
windows	3m 2s
linux-compiler-compat (gcc-6)	2m 6s
linux-compat (rhel8-x64)	2m 5s
linux-compiler-compat (gcc-7)	1m 57s
linux-compiler-compat (gcc-8)	2m 5s
windows-app-verifier	3m 41s
windows-shared-libs	3m 36s
windows-vc14 (x86)	2m 2s
windows-vc14 (x64)	1m 59s
downstream	2m 6s
osx	1m 39s
	1h 4m 27s

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