Hi, Some follow ups.
For me, now, the command > > $ guix time-machine \ > > --commit=56e95d54d209c2428f970d65d9b27ae4168449ad -- help does not fail anymore at the Guile step: --8<---------------cut here---------------start------------->8--- building /gnu/store/gglbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv... - 'check' phasebuilder for `/gnu/store/gglbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv' failed --8<---------------cut here---------------end--------------->8--- because it was about "FAIL: test-out-of-memory". Well, now, I am failing at the Python 3.7.3 step too: --8<---------------cut here---------------start------------->8--- /gnu/store/s0lw23myd3hvpw28sffkhz8b30x1hcz0-python-minimal-3.7.3.drv failed --8<---------------cut here---------------end--------------->8--- However, the python error seems about TLS: --8<---------------cut here---------------start------------->8--- test.test_asyncio.test_windows_utils (unittest.loader.ModuleSkipped) ... test test_asyncio failed skipped 'Windows only' ====================================================================== ERROR: test_start_tls_server_1 (test.test_asyncio.test_sslproto.SelectorStartTLSTests) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/test_asyncio/test_sslproto.py", line 507, in test_start_tls_server_1 self.loop.run_until_complete(run_main()) File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/asyncio/base_events.py", line 584, in run_until_complete return future.result() File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/test_asyncio/test_sslproto.py", line 502, in run_main loop=self.loop, timeout=self.TIMEOUT) File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/asyncio/tasks.py", line 423, in wait_for raise futures.TimeoutError() concurrent.futures._base.TimeoutError --8<---------------cut here---------------end--------------->8--- > Not sure what to do here. Could this be a (harmless) coincident? Me neither. Cheers, simon