[INFO] cloning repository https://github.com/justincampbell/url-shortener-rust
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustincampbell%2Furl-shortener-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dea15a889eaf723a4ab9ccfa1a9ca95e078f3b0a
[INFO] testing justincampbell/url-shortener-rust against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustincampbell%2Furl-shortener-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/justincampbell/url-shortener-rust on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-12/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e73b048b8d6ca30dca119e52bf298a648e60c14af6752739eed9f266b80015ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e73b048b8d6ca30dca119e52bf298a648e60c14af6752739eed9f266b80015ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e73b048b8d6ca30dca119e52bf298a648e60c14af6752739eed9f266b80015ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e73b048b8d6ca30dca119e52bf298a648e60c14af6752739eed9f266b80015ac", kill_on_drop: false }`
[INFO] [stdout] e73b048b8d6ca30dca119e52bf298a648e60c14af6752739eed9f266b80015ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bfc40a0888306b743eb63c9692daa1ad3ce5e0e1a6c1e2c54ded015e74f7f7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7bfc40a0888306b743eb63c9692daa1ad3ce5e0e1a6c1e2c54ded015e74f7f7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shortener v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `Token`
[INFO] [stdout]  --> src/shortener.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Token = String;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Url`
[INFO] [stdout]  --> src/shortener.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Url = String;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `World`
[INFO] [stdout]  --> src/shortener.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct World {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/shortener.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn empty() -> World {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shorten`
[INFO] [stdout]   --> src/shortener.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn shorten(&mut self, url: &Url) -> Token {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `expand`
[INFO] [stdout]   --> src/shortener.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn expand(&self, token: Token) -> Option<&Url> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tokenize`
[INFO] [stdout]   --> src/shortener.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn tokenize(id: i32) -> String {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "7bfc40a0888306b743eb63c9692daa1ad3ce5e0e1a6c1e2c54ded015e74f7f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfc40a0888306b743eb63c9692daa1ad3ce5e0e1a6c1e2c54ded015e74f7f7d", kill_on_drop: false }`
[INFO] [stdout] 7bfc40a0888306b743eb63c9692daa1ad3ce5e0e1a6c1e2c54ded015e74f7f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51a38cf66f8f46f7ef9aa677c91eb87d2dbeea0b89efaa5a140eb6177f27b4b4
[INFO] running `Command { std: "docker" "start" "-a" "51a38cf66f8f46f7ef9aa677c91eb87d2dbeea0b89efaa5a140eb6177f27b4b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling shortener v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "51a38cf66f8f46f7ef9aa677c91eb87d2dbeea0b89efaa5a140eb6177f27b4b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a38cf66f8f46f7ef9aa677c91eb87d2dbeea0b89efaa5a140eb6177f27b4b4", kill_on_drop: false }`
[INFO] [stdout] 51a38cf66f8f46f7ef9aa677c91eb87d2dbeea0b89efaa5a140eb6177f27b4b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d62261424823b52edd9b91a05e812d27e1d4a223bbbcc8b4bef755f0fa0a55e
[INFO] running `Command { std: "docker" "start" "-a" "9d62261424823b52edd9b91a05e812d27e1d4a223bbbcc8b4bef755f0fa0a55e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shortener-11590ab6b705d8f7)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test shortener::shorten_and_expand ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d62261424823b52edd9b91a05e812d27e1d4a223bbbcc8b4bef755f0fa0a55e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d62261424823b52edd9b91a05e812d27e1d4a223bbbcc8b4bef755f0fa0a55e", kill_on_drop: false }`
[INFO] [stdout] 9d62261424823b52edd9b91a05e812d27e1d4a223bbbcc8b4bef755f0fa0a55e