What did you do?
go get -v github.com/prometheus/prometheus/cmd/promtool
What did you expect to see?
promtool being installed.
What did you see instead? Under which circumstances?
# github.com/prometheus/prometheus/cmd/promtool ../go/src/github.com/prometheus/prometheus/cmd/promtool/main.go:645:35: not enough arguments in call to api.LabelValues have (context.Context, string, time.Time, time.Time) want (context.Context, string, string, time.Time, time.Time)
go version go1.15.8 linux/amd64
Ubuntu 20.04.2 LTS
Linux 5.4.0-65-generic x86_64