Try apt-getting the thing

.travis.yml

@@ -3,8 +3,6 @@ matrix:
     include:
         - name: Linux (gcc)
           os: linux
-          dist: xenial
-          go: 1.13.x
           compiler: gcc
           addons:
             apt:
@@ -20,6 +18,10 @@ matrix:
         - name: macOS
           os: osx
 sudo: false
+before_install:
+    - sudo add-apt-repository ppa:longsleep/golang-backports
+    - sudo apt-get update
+    - sudo apt-get install golang-go
 before_script:
     - git clone https://boringssl.googlesource.com/boringssl
     - cd boringssl