[INFO] cloning repository https://github.com/JamesZFS/LeetCode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesZFS/LeetCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesZFS%2FLeetCode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesZFS%2FLeetCode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34283e6a7ea27b8a806d8726241288117896aca5
[INFO] testing JamesZFS/LeetCode against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesZFS%2FLeetCode" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesZFS/LeetCode on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamesZFS/LeetCode
[INFO] finished tweaking git repo https://github.com/JamesZFS/LeetCode
[INFO] tweaked toml for git repo https://github.com/JamesZFS/LeetCode written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesZFS/LeetCode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d56a49d4e277874de9f6eaef5886527d9a964152952fc5db66cd0cc9fb39e2ae
[INFO] running `Command { std: "docker" "start" "-a" "d56a49d4e277874de9f6eaef5886527d9a964152952fc5db66cd0cc9fb39e2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d56a49d4e277874de9f6eaef5886527d9a964152952fc5db66cd0cc9fb39e2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56a49d4e277874de9f6eaef5886527d9a964152952fc5db66cd0cc9fb39e2ae", kill_on_drop: false }`
[INFO] [stdout] d56a49d4e277874de9f6eaef5886527d9a964152952fc5db66cd0cc9fb39e2ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d47abea765b351a6c87384c274c5b1342282d84472acc82310109b13df08bbc3
[INFO] running `Command { std: "docker" "start" "-a" "d47abea765b351a6c87384c274c5b1342282d84472acc82310109b13df08bbc3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]   --> src/practice/list.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn tail(&self) -> &Link<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "d47abea765b351a6c87384c274c5b1342282d84472acc82310109b13df08bbc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47abea765b351a6c87384c274c5b1342282d84472acc82310109b13df08bbc3", kill_on_drop: false }`
[INFO] [stdout] d47abea765b351a6c87384c274c5b1342282d84472acc82310109b13df08bbc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d64589feb015ce02d5b1ba537f3a8711d1a48a25a5d521944df7bcf0cf4e7fae
[INFO] running `Command { std: "docker" "start" "-a" "d64589feb015ce02d5b1ba537f3a8711d1a48a25a5d521944df7bcf0cf4e7fae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]   --> src/practice/list.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn tail(&self) -> &Link<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]   --> src/practice/list.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn tail(&self) -> &Link<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "d64589feb015ce02d5b1ba537f3a8711d1a48a25a5d521944df7bcf0cf4e7fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64589feb015ce02d5b1ba537f3a8711d1a48a25a5d521944df7bcf0cf4e7fae", kill_on_drop: false }`
[INFO] [stdout] d64589feb015ce02d5b1ba537f3a8711d1a48a25a5d521944df7bcf0cf4e7fae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0deb376ee157d012451bc3f6c91c0129a9437c9920bac7be473de802c13ee2fb
[INFO] running `Command { std: "docker" "start" "-a" "0deb376ee157d012451bc3f6c91c0129a9437c9920bac7be473de802c13ee2fb", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `leet_code` (lib) generated 1 warning
[INFO] [stderr] warning: `leet_code` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leet_code-5873f9001f64b9e8)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stderr]    Doc-tests leet_code
[INFO] [stdout] test array::p1::tests::test ... ok
[INFO] [stdout] test array::p2::tests::test ... ok
[INFO] [stdout] test array::p3::tests::test ... ok
[INFO] [stdout] test practice::heap::tests::sort ... ok
[INFO] [stdout] test practice::heap::tests::basic ... ok
[INFO] [stdout] test practice::list::test::basics ... ok
[INFO] [stdout] test practice::list::test::insert_remove ... ok
[INFO] [stdout] test practice::list::test::iterator ... ok
[INFO] [stdout] test practice::sort::tests::test ... ok
[INFO] [stdout] test string::p1::tests::test ... ok
[INFO] [stdout] test string::p2::test::test ... ok
[INFO] [stdout] test string::p3::tests::test ... ok
[INFO] [stdout] test string::p5::tests::test ... ok
[INFO] [stdout] test string::p6::tests::test ... ok
[INFO] [stdout] test string::p7::tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0deb376ee157d012451bc3f6c91c0129a9437c9920bac7be473de802c13ee2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0deb376ee157d012451bc3f6c91c0129a9437c9920bac7be473de802c13ee2fb", kill_on_drop: false }`
[INFO] [stdout] 0deb376ee157d012451bc3f6c91c0129a9437c9920bac7be473de802c13ee2fb