CI issue was upstream in opam, partially revert the changes

5 jobs for master in 0 seconds (queued for 85 minutes and 9 seconds)
Status Job ID Name Coverage
  Build
failed #16847
fp
build-coq.8.7.1

failed #16846
fp
build-coq.8.7.2

failed #16845
fp-timing
build-coq.8.8.0

failed #16844
fp
build-coq.8.8.1

failed #16843
fp
build-coq.dev

 
Name Stage Failure
failed
build-coq.8.7.1 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build-coq.8.7.2 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build-coq.8.8.0 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build-coq.8.8.1 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build-coq.dev Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log