Dec 11 15:54:35.500 INFO checking justincampbell/url-shortener-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 15:54:35.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 15:54:36.072 INFO [stdout] 0fcb8b10f8feb596e750dc1059108e1f048c28f56294714e9d95160745469ce2
Dec 11 15:54:36.078 INFO running `"docker" "start" "-a" "0fcb8b10f8feb596e750dc1059108e1f048c28f56294714e9d95160745469ce2"`
Dec 11 15:54:37.420 INFO [stderr] usermod: no changes
Dec 11 15:54:37.512 INFO [stderr]     Checking shortener v0.0.1 (/source)
Dec 11 15:54:38.116 INFO [stderr] warning: type alias is never used: `Token`
Dec 11 15:54:38.116 INFO [stderr]  --> src/shortener.rs:3:1
Dec 11 15:54:38.116 INFO [stderr]   |
Dec 11 15:54:38.116 INFO [stderr] 3 | type Token = String;
Dec 11 15:54:38.116 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.116 INFO [stderr]   |
Dec 11 15:54:38.116 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 15:54:38.116 INFO [stderr] 
Dec 11 15:54:38.116 INFO [stderr] warning: type alias is never used: `Url`
Dec 11 15:54:38.116 INFO [stderr]  --> src/shortener.rs:4:1
Dec 11 15:54:38.116 INFO [stderr]   |
Dec 11 15:54:38.116 INFO [stderr] 4 | type Url = String;
Dec 11 15:54:38.116 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.116 INFO [stderr] 
Dec 11 15:54:38.116 INFO [stderr] warning: struct is never constructed: `World`
Dec 11 15:54:38.116 INFO [stderr]  --> src/shortener.rs:6:1
Dec 11 15:54:38.116 INFO [stderr]   |
Dec 11 15:54:38.116 INFO [stderr] 6 | pub struct World {
Dec 11 15:54:38.117 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 11 15:54:38.117 INFO [stderr] 
Dec 11 15:54:38.117 INFO [stderr] warning: method is never used: `empty`
Dec 11 15:54:38.117 INFO [stderr]   --> src/shortener.rs:12:5
Dec 11 15:54:38.117 INFO [stderr]    |
Dec 11 15:54:38.117 INFO [stderr] 12 |     pub fn empty() -> World {
Dec 11 15:54:38.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.117 INFO [stderr] 
Dec 11 15:54:38.117 INFO [stderr] warning: method is never used: `shorten`
Dec 11 15:54:38.117 INFO [stderr]   --> src/shortener.rs:16:5
Dec 11 15:54:38.117 INFO [stderr]    |
Dec 11 15:54:38.117 INFO [stderr] 16 |     pub fn shorten(&mut self, url: &Url) -> Token {
Dec 11 15:54:38.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.117 INFO [stderr] 
Dec 11 15:54:38.117 INFO [stderr] warning: method is never used: `expand`
Dec 11 15:54:38.117 INFO [stderr]   --> src/shortener.rs:25:5
Dec 11 15:54:38.117 INFO [stderr]    |
Dec 11 15:54:38.117 INFO [stderr] 25 |     pub fn expand(&self, token: Token) -> Option<&Url> {
Dec 11 15:54:38.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.117 INFO [stderr] 
Dec 11 15:54:38.117 INFO [stderr] warning: method is never used: `tokenize`
Dec 11 15:54:38.117 INFO [stderr]   --> src/shortener.rs:29:5
Dec 11 15:54:38.117 INFO [stderr]    |
Dec 11 15:54:38.117 INFO [stderr] 29 |     fn tokenize(id: i32) -> String {
Dec 11 15:54:38.117 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:54:38.117 INFO [stderr] 
Dec 11 15:54:38.149 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 11 15:54:38.164 INFO [stderr] su: No module specific data is present
Dec 11 15:54:39.224 INFO running `"docker" "inspect" "0fcb8b10f8feb596e750dc1059108e1f048c28f56294714e9d95160745469ce2"`
Dec 11 15:54:39.572 INFO running `"docker" "rm" "-f" "0fcb8b10f8feb596e750dc1059108e1f048c28f56294714e9d95160745469ce2"`
Dec 11 15:54:39.820 INFO [stdout] 0fcb8b10f8feb596e750dc1059108e1f048c28f56294714e9d95160745469ce2