Sep 17 12:35:23.302 INFO checking justincampbell/url-shortener-rust against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033 Sep 17 12:35:23.302 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets Sep 17 12:35:23.302 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-4/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"` Sep 17 12:35:23.648 INFO blam! fa4d9fd17f02b0170dbc96a3a3f6cc4fa762d4b097b7356086fdf0a82cee29de Sep 17 12:35:23.650 INFO running `"docker" "start" "-a" "fa4d9fd17f02b0170dbc96a3a3f6cc4fa762d4b097b7356086fdf0a82cee29de"` Sep 17 12:35:25.133 INFO kablam! usermod: no changes Sep 17 12:35:25.211 INFO kablam! Checking shortener v0.0.1 (/source) Sep 17 12:35:25.587 INFO kablam! warning: type alias is never used: `Token` Sep 17 12:35:25.587 INFO kablam! --> src/shortener.rs:3:1 Sep 17 12:35:25.587 INFO kablam! | Sep 17 12:35:25.587 INFO kablam! 3 | type Token = String; Sep 17 12:35:25.587 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.587 INFO kablam! | Sep 17 12:35:25.587 INFO kablam! = note: #[warn(dead_code)] on by default Sep 17 12:35:25.587 INFO kablam! Sep 17 12:35:25.587 INFO kablam! warning: type alias is never used: `Url` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:4:1 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 4 | type Url = String; Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.595 INFO kablam! warning: struct is never constructed: `World` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:6:1 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 6 | pub struct World { Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.595 INFO kablam! warning: method is never used: `empty` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:12:5 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 12 | pub fn empty() -> World { Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.595 INFO kablam! warning: method is never used: `shorten` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:16:5 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 16 | pub fn shorten(&mut self, url: &Url) -> Token { Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.595 INFO kablam! warning: method is never used: `expand` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:25:5 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 25 | pub fn expand(&self, token: Token) -> Option<&Url> { Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.595 INFO kablam! warning: method is never used: `tokenize` Sep 17 12:35:25.595 INFO kablam! --> src/shortener.rs:29:5 Sep 17 12:35:25.595 INFO kablam! | Sep 17 12:35:25.595 INFO kablam! 29 | fn tokenize(id: i32) -> String { Sep 17 12:35:25.595 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 17 12:35:25.595 INFO kablam! Sep 17 12:35:25.721 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 0.55s Sep 17 12:35:25.722 INFO kablam! su: No module specific data is present Sep 17 12:35:26.719 INFO running `"docker" "rm" "-f" "fa4d9fd17f02b0170dbc96a3a3f6cc4fa762d4b097b7356086fdf0a82cee29de"` Sep 17 12:35:27.053 INFO blam! fa4d9fd17f02b0170dbc96a3a3f6cc4fa762d4b097b7356086fdf0a82cee29de