Sep 01 14:59:13.293 INFO checking justincampbell/url-shortener-rust against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 14:59:13.293 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 14:59:13.293 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/try#952c7dbfa2628309f557b367929ffc17af20b332:/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=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:59:13.529 INFO blam! e1598c6f2d7407a126a89edb7e742e514fdc60164f5e9e585c8fab8db72d0f93
Sep 01 14:59:13.531 INFO running `"docker" "start" "-a" "e1598c6f2d7407a126a89edb7e742e514fdc60164f5e9e585c8fab8db72d0f93"`
Sep 01 14:59:14.072 INFO kablam!     Checking shortener v0.0.1 (file:///source)
Sep 01 14:59:14.285 INFO kablam! warning: type alias is never used: `Token`
Sep 01 14:59:14.285 INFO kablam!  --> src/shortener.rs:3:1
Sep 01 14:59:14.286 INFO kablam!   |
Sep 01 14:59:14.286 INFO kablam! 3 | type Token = String;
Sep 01 14:59:14.286 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.286 INFO kablam!   |
Sep 01 14:59:14.286 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 01 14:59:14.286 INFO kablam! 
Sep 01 14:59:14.286 INFO kablam! warning: type alias is never used: `Url`
Sep 01 14:59:14.286 INFO kablam!  --> src/shortener.rs:4:1
Sep 01 14:59:14.286 INFO kablam!   |
Sep 01 14:59:14.286 INFO kablam! 4 | type Url = String;
Sep 01 14:59:14.286 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.286 INFO kablam! 
Sep 01 14:59:14.287 INFO kablam! warning: struct is never constructed: `World`
Sep 01 14:59:14.287 INFO kablam!  --> src/shortener.rs:6:1
Sep 01 14:59:14.287 INFO kablam!   |
Sep 01 14:59:14.287 INFO kablam! 6 | pub struct World {
Sep 01 14:59:14.287 INFO kablam!   | ^^^^^^^^^^^^^^^^
Sep 01 14:59:14.287 INFO kablam! 
Sep 01 14:59:14.287 INFO kablam! warning: method is never used: `empty`
Sep 01 14:59:14.287 INFO kablam!   --> src/shortener.rs:12:5
Sep 01 14:59:14.287 INFO kablam!    |
Sep 01 14:59:14.287 INFO kablam! 12 |     pub fn empty() -> World {
Sep 01 14:59:14.287 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.287 INFO kablam! 
Sep 01 14:59:14.287 INFO kablam! warning: method is never used: `shorten`
Sep 01 14:59:14.287 INFO kablam!   --> src/shortener.rs:16:5
Sep 01 14:59:14.287 INFO kablam!    |
Sep 01 14:59:14.287 INFO kablam! 16 |     pub fn shorten(&mut self, url: &Url) -> Token {
Sep 01 14:59:14.287 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.287 INFO kablam! 
Sep 01 14:59:14.287 INFO kablam! warning: method is never used: `expand`
Sep 01 14:59:14.287 INFO kablam!   --> src/shortener.rs:25:5
Sep 01 14:59:14.287 INFO kablam!    |
Sep 01 14:59:14.288 INFO kablam! 25 |     pub fn expand(&self, token: Token) -> Option<&Url> {
Sep 01 14:59:14.288 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.288 INFO kablam! 
Sep 01 14:59:14.288 INFO kablam! warning: method is never used: `tokenize`
Sep 01 14:59:14.288 INFO kablam!   --> src/shortener.rs:29:5
Sep 01 14:59:14.288 INFO kablam!    |
Sep 01 14:59:14.288 INFO kablam! 29 |     fn tokenize(id: i32) -> String {
Sep 01 14:59:14.288 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:59:14.288 INFO kablam! 
Sep 01 14:59:14.401 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Sep 01 14:59:14.403 INFO kablam! su: No module specific data is present
Sep 01 14:59:14.809 INFO running `"docker" "rm" "-f" "e1598c6f2d7407a126a89edb7e742e514fdc60164f5e9e585c8fab8db72d0f93"`
Sep 01 14:59:14.944 INFO blam! e1598c6f2d7407a126a89edb7e742e514fdc60164f5e9e585c8fab8db72d0f93