macos CI queues for a very long time

[timotheecour]

macos jobs seem to take at least 30mn to start running (queueing time)

example 1:

in #64:
Fusion CI / macos-amd64 (1.0.0) (pull_request) Successful in 8m
Fusion CI / linux-i386 (1.0.0) (pull_request) Successful in 1m
ditto with all other jobs, macos is always the straggler by far

example 2:

in #67 all macos jobs queue for a long time (even after i restart all CI)

[alaviss]

Not our bug, IIRC Github Actions throttled usage of their macOS VMs recently due to a scheduled maintenance. Everything should be normal by now, and if it's still queuing for a long time please raise the issue to Github.

[timotheecour]

that would explain the larger queueing time; but what about the larger running time for macos? (this excludes queueing time)
eg for #57, ~10x slower:

[alaviss]

The majority of time seems to be spent in choosenim. So still not fusion bug.

EDIT: #70 demonstrated consistent timing between all branch/OSes when setup-nim is used in-place of choosenim. So if it keeps being slow just raise it upstream.

[timotheecour]

fixed by #70 ; thanks!

[timotheecour]

if this happens again, check CI logs, eg:
https://pipelines.actions.githubusercontent.com/ZRinn1OrR0LWxU3iWy1StaQcZRN2kXW9lHWwDJ3esfasrmfdRn/_apis/pipelines/1/runs/12939/signedlogcontent/4?urlExpires=2021-01-19T18%3A54%3A49.9844532Z&urlSigningMethod=HMACV1&urlSignature=RfANhu5%2BYdgloTJ4ZmH%2BElzhWxPqJIabZNwkJArZtgE%3D

2021-01-19T17:13:14.8535319Z ##[section]Starting: Request a runner to run this job
2021-01-19T17:13:15.1303368Z Can't find any online and idle self-hosted runner in current repository that matches the required labels: 'macos-10.15'
2021-01-19T17:13:15.1303466Z Can't find any online and idle self-hosted runner in current repository's account/organization that matches the required labels: 'macos-10.15'
2021-01-19T17:13:15.1574665Z Found online and idle hosted runner in current repository's account/organization that matches the required labels: 'macos-10.15'
2021-01-19T17:13:15.3131419Z ##[section]Finishing: Request a runner to run this job
2021-01-19T17:13:27.1843930Z Current runner version: '2.275.1'
2021-01-19T17:13:27.1890690Z ##[group]Operating System
2021-01-19T17:13:27.1891550Z Mac OS X
2021-01-19T17:13:27.1891900Z 10.15.7
2021-01-19T17:13:27.1892230Z 19H15
2021-01-19T17:13:27.1892580Z ##[endgroup]
2021-01-19T17:13:27.1893030Z ##[group]Virtual Environment
2021-01-19T17:13:27.1893560Z Environment: macos-10.15
2021-01-19T17:13:27.1893990Z Version: 20201212.1

[timotheecour]

maybe due to this:

Hosted macOS workflows will experience longer wait times the week of December 14th. · Issue #2247 · actions/virtual-environments