Tests

sync: updatex rextendr #75

Job	Run time
ubuntu-latest w/ bindgen (R-devel rust-stable )	4m 45s
windows-latest (R-release rust-stable-msvc)	14m 17s
macOS-latest w/ bindgen (R-devel rust-stable )	7m 52s
windows-latest (R-devel rust-stable-msvc)	13m 6s
windows-latest w/ bindgen (R-release rust-stable-msvc x86_64-pc-windows-gnu)	7m 21s
windows-latest (R-oldrel rust-stable-msvc)	16m 28s
windows-latest w/ bindgen (R-devel rust-stable-msvc x86_64-pc-windows-gnu)	5m 38s
macOS-latest (R-release rust-stable)	9m 38s
windows-latest w/ bindgen (R-release rust-nightly-msvc x86_64-pc-windows-gnu)	7m 39s
ubuntu-latest (R-release rust-stable)	1m 28s
windows-latest w/ bindgen (R-oldrel rust-nightly-msvc x86_64-pc-windows-gnu)	12m 24s
ubuntu-latest (R-release rust-nightly)	5m 38s
ubuntu-latest (R-devel rust-stable)	7m 49s
ubuntu-latest (R-oldrel rust-stable)	6m 21s
	2h 0m 24s

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