baby steps towards a Structured Concurrency API #64

Job	Run time
Unit tests / Construct unit test matrix	3s
Cxx interop / Construct Cxx interop matrix	3s
Soundness / API breakage check	4m 26s
Soundness / Documentation check	2m 52s
Soundness / Unacceptable language check	2s
Soundness / License headers check	5s
Soundness / Broken symlinks check	3s
Soundness / Format check	37s
Soundness / Shell check	31s
Soundness / YAML lint check	2s
Soundness / Python lint check	4s
Unit tests / Unit tests / Linux (5.9)	4m 37s
Unit tests / Unit tests / Linux (5.10)	4m 36s
Unit tests / Unit tests / Linux (6.0)	4m 51s
Unit tests / Unit tests / Linux (nightly-6.1)	3m 30s
Unit tests / Unit tests / Linux (nightly-main)	3m 22s
Cxx interop / Cxx interop / Linux (5.9)	2m 23s
Cxx interop / Cxx interop / Linux (5.10)	2m 29s
Cxx interop / Cxx interop / Linux (6.0)	2m 37s
Cxx interop / Cxx interop / Linux (nightly-6.1)	3m 13s
Cxx interop / Cxx interop / Linux (nightly-main)	3m 19s
	43m 45s

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