Add explicit test user to postgres

Author: palfrey

.travis.yml

@@ -16,6 +16,9 @@ addons:
     - postgresql-10
   postgresql: 10
 
+before_script:
+  - psql -c "CREATE USER foo WITH PASSWORD 'bar';" -U postgres
+
 script:
   - cargo test -- --nocapture || travis_terminate 1
   - docker build . -t wait_for_db || travis_terminate 1
@@ -26,8 +29,8 @@ env:
     - ODBC_SYS_STATIC_PATH=/usr/lib/x86_64-linux-gnu/
     - POSTGRES_SERVER=localhost
     - POSTGRES_PORT=5432
-    - POSTGRES_USERNAME=travis
-    - POSTGRES_PASSWORD=travis
+    - POSTGRES_USERNAME=foo
+    - POSTGRES_PASSWORD=bar
     - RUST_BACKTRACE=1
     - POSTGRES_DRIVER=/usr/lib/x86_64-linux-gnu/odbc/psqlodbca.so
     - SQLITE_DRIVER=/usr/lib/x86_64-linux-gnu/odbc/libsqlite3odbc.so