travis: add go 1.16 CI

[rail]

This adds go 1.16 to the TravisCI build/test matrix.

[cockroach-teamcity]

This change is 

[rail]

CI is really slow now :/ I wonder if it's time to switch to GitHub Actions.

[petermattis]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion (waiting on @rail)

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.travis.yml, line 26 at r1 (raw file):

      os: linux
      script: make test generate
    - name: "go1.15.x-linux-race"

I think we can remove this configuration, as well as the other go-1.15.x-linux-* variants, and go-1.15.x-windows, and go-1.15.x-freebsd. Leaving these configurations around tends to just slow down CI.

[rail]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion (waiting on @petermattis and @rail)

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.travis.yml, line 26 at r1 (raw file):

Previously, petermattis (Peter Mattis) wrote…

I think we can remove this configuration, as well as the other go-1.15.x-linux-* variants, and go-1.15.x-windows, and go-1.15.x-freebsd. Leaving these configurations around tends to just slow down CI.

I'll create a separate issue for this, maybe using GitHub Actions.

[petermattis]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion

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.travis.yml, line 26 at r1 (raw file):

Previously, rail (Rail Aliiev) wrote…

I'll create a separate issue for this, maybe using GitHub Actions.

Historically, we've only ever supported testing on the current version and one config of the previous version. I'm fine with that level of testing. No need to expand it dramatically. See #983 for the go1.15 upgrade PR.

[rail]

I see. Creating a PR now.