$ travis_setup_go
I don't have any idea what to do with '1.12.7'.
(using download type 'auto')
Failed to run gimme
The command "travis_setup_go" failed and exited with 86 during .
Most likely explanation is that gimme resolved to a version, but failed to download the binary file.
The error seems a bit unpredictable; my attempts (with go: stable) just now proceeded to find and install 1.14.2. If you are seeing this issue on a more consistent basis, setting GIMME_DEBUG=1 should yield more info.
GOFLAGS
A space-separated list of -flag=value settings to apply
to go commands by default, when the given flag is known by
the current command. Each entry must be a standalone flag.
Because the entries are space-separated, flag values must
not contain spaces. Flags listed on the command line
are applied after this list and therefore override it.