another way to change passwd

.travis.yml

@@ -3,6 +3,8 @@ go:
   - 1.15.x
 env:
   - GO111MODULE=on
-before_script:
-  - echo "USE mysql;\nUPDATE user SET password=PASSWORD('my-secret-pw') WHERE user='root';\nFLUSH PRIVILEGES;\n" | mysql -u root
+  before_install:
+    - sudo mysql -e "use mysql; update user set authentication_string=PASSWORD('my-secret-pw') where User='root'; update user set plugin='mysql_native_password';FLUSH PRIVILEGES;"
+    - sudo mysql_upgrade -u root -pmy-secret-pw
+    - sudo service mysql restart
 script: go test ./...