Use rustfmt from the stable rustup channel

.gitlab-ci.yml

@@ -85,12 +85,13 @@ stop_review:
         - master@World/podcasts
         - tags
 
-# Configure and run rustfmt on nightly
+# Configure and run rustfmt
 # Exits and builds fails if on bad format
 rustfmt:
-    image: "registry.gitlab.com/alatiera/rustfmt-oci-image/rustfmt:nightly"
-    stage: lint
+  image: "rust:slim"
+  stage: "lint"
   script:
+    - rustup component add rustfmt
     - rustc -Vv && cargo -Vv
     - cargo fmt --version
-        - cargo fmt --all -- --check
+    - cargo fmt --all -- --color=always --check

CONTRIBUTING.md

@@ -26,9 +26,12 @@ makes things easier for the maintainers.
 
 We use [rustfmt](https://github.com/rust-lang-nursery/rustfmt) for code formatting and we enforce it on the gitlab-CI server.
 
-Quick setup
+***Installing rustfmt*** As of 2019/Jan, our continuous integration
+pipeline assumes the version of rustfmt that is distributed through the
+stable channel of [rustup](rustup.rs).  You can install it with
+
 ```
-cargo install rustfmt-nightly
+rustup component add rustfmt
 cargo fmt --all
  ```
 
@@ -36,7 +39,7 @@ It is recommended to add a pre-commit hook to run cargo test and `cargo fmt`.
 Don't forget to `git add` again after `cargo fmt`.
 ```
 #!/bin/sh
-cargo test -- --test-threads=1 && cargo fmt --all -- --write-mode=diff
+cargo test -- --test-threads=1 && cargo fmt --all -- --check
 ```
 
 ## Running the test suite

podcasts-data/src/models/new_show.rs

@@ -242,7 +242,8 @@ mod tests {
                 .image_uri(Some(String::from(
                     "https://imagecdn.acast.com/image?h=1500&w=1500&source=http%3A%2F%2Fi1.sndcdn.\
                      com%2Favatars-000317856075-a2coqz-original.jpg",
-                ))).source_id(42)
+                )))
+                .source_id(42)
                 .build()
                 .unwrap()
         };

podcasts-data/src/opml.rs

@@ -127,8 +127,7 @@ mod tests {
     fn test_extract() -> Result<(), Error> {
         let int_title = String::from("Intercepted with Jeremy Scahill");
         let int_url = String::from("https://feeds.feedburner.com/InterceptedWithJeremyScahill");
-        let int_desc =
-            String::from(
+        let int_desc = String::from(
             "The people behind The Intercept’s fearless reporting and incisive \
              commentary—Jeremy Scahill, Glenn Greenwald, Betsy Reed and others—discuss the \
              crucial issues of our time: national security, civil liberties, foreign policy, \

rustfmt.toml

@@ -1,7 +1 @@
-comment_width = 100
-wrap_comments = true
-newline_style = "Unix"
-format_strings = true
-normalize_comments = true
-use_field_init_shorthand = true
 edition = "2018"