Add Go 1.13 to Travis

[gliptak]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[willarmiros]

Hi @gliptak,
Thank you for your contribution. As you can see the Travis tests are failing with this change, and I believe it's because of this issue. Changing the logic to get get all on v1.13 should fix it. Also, there are some places where the latest Go version is referenced and should be increased.

[willarmiros]

• Add conditional to L43 to run go get all on Go version 1.13
• Bump version to 1.13 on L46
• Bump version to 1.13 on L54

[willarmiros]

Hi @gliptak,
It seems like there are lots of errors unrelated to your PR that are nonetheless causing Travis to fail sporadically. My suspicion is #156 had some unintended consequences that lead to this behavior, since it affected BeginSegment. We'll have to do some investigation here and determine if the PR or the tests themselves are broken and make the appropriate fix.

Also, again unrelated to this change, but it appears all the SQL unit tests fail in Go 1.13, which will also require an investigation if it's not fixed by the above. Otherwise your changes look good.

[gliptak]

@willarmiros thank you for the pointers. I will wait for the BeginSegment updates.

As for SQL, .1.12 picks up go: finding github.com/DATA-DOG/go-sqlmock v1.2.0 while 1.13 picks up go: finding github.com/DATA-DOG/go-sqlmock v1.2.0

[willarmiros]

@gliptak one further change then this should be good to go! Thanks for your patience as we resolve these test failures.

[gliptak]

@willarmiros thank you for moving this along. The PR is green.

[willarmiros]

Thanks for the quick fix!