Make CI fail on warnings

.travis.yml

@@ -14,7 +14,7 @@ matrix:
     - name: "Clippy"
       rust: stable
       before_script: rustup component add clippy-preview
-      script: cargo clippy --all --all-features -- -D clippy
+      script: cargo clippy --all -- -D clippy
 
     - name: "rustfmt"
       rust: stable
@@ -23,20 +23,20 @@ matrix:
 
     - name: "warnings"
       rust: stable
-      script: cargo check --tests --all-features
+      script: cargo check --all --features=fail-on-warnings
 
     - name: "release"
       rust: stable
       script:
-        - cargo build --verbose --release
-        - cargo test --verbose --release
-        - cargo doc --verbose --release
+        - cargo build --verbose --all --release
+        - cargo test --verbose --all --release
+        - cargo doc --verbose --all --release
 
   allow_failures:
     - rust: nightly
   fast_finish: true
 
 script:
-- cargo build --verbose
-- cargo test --verbose
-- cargo doc --verbose
+- cargo build --all --verbose
+- cargo test --all --verbose
+- cargo doc --all --verbose

Cargo.toml

@@ -3,6 +3,9 @@ name = "git-fuck"
 version = "0.1.0"
 authors = ["Sondre Nilsen <nilsen.sondre@gmail.com>"]
 
+[features]
+fail-on-warnings = []
+
 [dependencies]
 git2 = "0.7"
 structopt = "0.2"

src/main.rs

@@ -1,3 +1,4 @@
+#![cfg_attr(feature = "fail-on-warnings", deny(warnings))]
 extern crate git2;
 
 use git2::Repository;