Debugging rustfmt failure

Signed-off-by: Richard Whitehouse <richard.whitehouse@metaswitch.com>

Author: richardwhiuk

.travis.yml

@@ -29,7 +29,15 @@ matrix:
     before_script:
     - rustup component add rustfmt
     script:
-    - cargo fmt -- --check
+    - rustup component list --installed
+    - echo $PATH
+    - echo $HOME
+    - ls -l ~/.cargo/bin
+    - which rustc
+    - which cargo
+    - rustfmt --version
+    - rustfmt --edition 2018 --check /home/travis/build/Metaswitch/swagger-rs/src/lib.rs --verbose
+    - cargo fmt --verbose -- --check --verbose
 branches:
   only:
   - staging