Merge pull request #145 from wingo/filesystem-open-errors #585

Job	Run time
Build C tests (macos-latest)	11s
Build C tests (windows-latest)	37s
Build C tests (windows-11-arm)	47s
Build Assemblyscript tests (macos-latest)	17s
Build Assemblyscript tests (windows-latest)	29s
Build Rust tests (ubuntu-latest)	42s
Build Rust tests (windows-11-arm)	58s
Build Assemblyscript tests (windows-11-arm)	25s
Build C tests (ubuntu-latest)	10s
Build Rust tests (macos-latest)	1m 27s
Build Assemblyscript tests (ubuntu-latest)	18s
Build Rust tests (windows-latest)	1m 23s
upload_test_binaries	12s
Run tests (macos-latest, wasmtime)	2m 1s
Run tests (ubuntu-latest, wasmtime)	24s
Run tests (windows-11-arm, wasmtime)	48s
Run tests (windows-latest, wasmtime)	1m 1s
	12m 10s

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