travis: add go1.13 and remove go1.10 and go1.9 without GAE (#3050)
diff --git a/.travis.yml b/.travis.yml
index f0f723f..c6762c2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,18 +2,18 @@
matrix:
include:
- - go: 1.12.x
+ - go: 1.13.x
env: VET=1 GO111MODULE=on
- - go: 1.12.x
+ - go: 1.13.x
env: RACE=1 GO111MODULE=on
- - go: 1.12.x
+ - go: 1.13.x
env: RUN386=1
- - go: 1.12.x
+ - go: 1.13.x
env: GRPC_GO_RETRY=on
+ - go: 1.12.x
+ env: GO111MODULE=on
- go: 1.11.x
env: GO111MODULE=on
- - go: 1.10.x
- - go: 1.9.x
- go: 1.9.x
env: GAE=1