[INFO] cloning repository https://github.com/justincampbell/url-shortener-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justincampbell/url-shortener-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustincampbell%2Furl-shortener-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustincampbell%2Furl-shortener-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dea15a889eaf723a4ab9ccfa1a9ca95e078f3b0a
[INFO] checking justincampbell/url-shortener-rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustincampbell%2Furl-shortener-rust" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/justincampbell/url-shortener-rust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/justincampbell/url-shortener-rust
[INFO] finished tweaking git repo https://github.com/justincampbell/url-shortener-rust
[INFO] tweaked toml for git repo https://github.com/justincampbell/url-shortener-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/justincampbell/url-shortener-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 109c95df655c3f2864202469a01dcab3b946e499c1898cfbba3a32c0a88bfded
[INFO] running `"docker" "start" "-a" "109c95df655c3f2864202469a01dcab3b946e499c1898cfbba3a32c0a88bfded"`
[INFO] [stderr]     Checking shortener v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: type alias is never used: `Token`
[INFO] [stderr]  --> src/shortener.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | type Token = String;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Url`
[INFO] [stderr]  --> src/shortener.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type Url = String;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `World`
[INFO] [stderr]  --> src/shortener.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct World {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/shortener.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn empty() -> World {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shorten`
[INFO] [stderr]   --> src/shortener.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn shorten(&mut self, url: &Url) -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expand`
[INFO] [stderr]   --> src/shortener.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn expand(&self, token: Token) -> Option<&Url> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tokenize`
[INFO] [stderr]   --> src/shortener.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn tokenize(id: i32) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "109c95df655c3f2864202469a01dcab3b946e499c1898cfbba3a32c0a88bfded"`
[INFO] running `"docker" "rm" "-f" "109c95df655c3f2864202469a01dcab3b946e499c1898cfbba3a32c0a88bfded"`
[INFO] [stdout] 109c95df655c3f2864202469a01dcab3b946e499c1898cfbba3a32c0a88bfded