baby steps towards a Structured Concurrency API #66

Job	Run time
Cxx interop / Construct Cxx interop matrix	5s
Unit tests / Construct unit test matrix	2s
Soundness / API breakage check	4m 11s
Soundness / Documentation check	2m 49s
Soundness / Unacceptable language check	3s
Soundness / License headers check	4s
Soundness / Broken symlinks check	3s
Soundness / Format check	40s
Soundness / Shell check	31s
Soundness / YAML lint check	3s
Soundness / Python lint check	5s
Unit tests / Unit tests / Linux (5.9)	4m 32s
Unit tests / Unit tests / Linux (5.10)	4m 31s
Unit tests / Unit tests / Linux (6.0)	5m 1s
Unit tests / Unit tests / Linux (nightly-6.1)	3m 29s
Unit tests / Unit tests / Linux (nightly-main)	3m 32s
Cxx interop / Cxx interop / Linux (5.9)	2m 24s
Cxx interop / Cxx interop / Linux (5.10)	2m 17s
Cxx interop / Cxx interop / Linux (6.0)	2m 36s
Cxx interop / Cxx interop / Linux (nightly-6.1)	3m 16s
Cxx interop / Cxx interop / Linux (nightly-main)	3m 13s
	43m 27s

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