[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#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesZFS%2FLeetCode" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesZFS/LeetCode on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-5/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01e469044c157c265e2a537646a46e12d7681ab07ea3d6958793720dda049890
[INFO] running `Command { std: "docker" "start" "-a" "01e469044c157c265e2a537646a46e12d7681ab07ea3d6958793720dda049890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01e469044c157c265e2a537646a46e12d7681ab07ea3d6958793720dda049890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e469044c157c265e2a537646a46e12d7681ab07ea3d6958793720dda049890", kill_on_drop: false }`
[INFO] [stdout] 01e469044c157c265e2a537646a46e12d7681ab07ea3d6958793720dda049890
[INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e6b1b498c020592d9e774f530088b0b4b9ba7d13451ca54cb4c02e33eda9b1f
[INFO] running `Command { std: "docker" "start" "-a" "0e6b1b498c020592d9e774f530088b0b4b9ba7d13451ca54cb4c02e33eda9b1f", kill_on_drop: false }`
[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 1.00s
[INFO] running `Command { std: "docker" "inspect" "0e6b1b498c020592d9e774f530088b0b4b9ba7d13451ca54cb4c02e33eda9b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e6b1b498c020592d9e774f530088b0b4b9ba7d13451ca54cb4c02e33eda9b1f", kill_on_drop: false }`
[INFO] [stdout] 0e6b1b498c020592d9e774f530088b0b4b9ba7d13451ca54cb4c02e33eda9b1f
[INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0457a102ae0d08d189057d67e7a04a09cc1af78b5071878de769756e7de02a48
[INFO] running `Command { std: "docker" "start" "-a" "0457a102ae0d08d189057d67e7a04a09cc1af78b5071878de769756e7de02a48", kill_on_drop: false }`
[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] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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 1.81s
[INFO] running `Command { std: "docker" "inspect" "0457a102ae0d08d189057d67e7a04a09cc1af78b5071878de769756e7de02a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0457a102ae0d08d189057d67e7a04a09cc1af78b5071878de769756e7de02a48", kill_on_drop: false }`
[INFO] [stdout] 0457a102ae0d08d189057d67e7a04a09cc1af78b5071878de769756e7de02a48
[INFO] running `Command { std: "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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa137ce94ff2cbe87ac5a3e0cd4027b331517cb44814764f38fff5b8b04bfc3c
[INFO] running `Command { std: "docker" "start" "-a" "fa137ce94ff2cbe87ac5a3e0cd4027b331517cb44814764f38fff5b8b04bfc3c", 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: 1 warning emitted
[INFO] [stderr] 
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leet_code-db187e355cd10055)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test array::p1::tests::test ... ok
[INFO] [stdout] test array::p3::tests::test ... ok
[INFO] [stdout] test practice::list::test::iterator ... ok
[INFO] [stdout] test practice::sort::tests::test ... ok
[INFO] [stdout] test practice::heap::tests::sort ... ok
[INFO] [stdout] test practice::list::test::insert_remove ... ok
[INFO] [stdout] test string::p7::tests::test ... ok
[INFO] [stdout] test string::p1::tests::test ... ok
[INFO] [stdout] test practice::list::test::basics ... ok
[INFO] [stdout] test string::p5::tests::test ... ok
[INFO] [stdout] test string::p2::test::test ... ok
[INFO] [stdout] test string::p6::tests::test ... ok
[INFO] [stdout] test array::p2::tests::test ... ok
[INFO] [stderr]    Doc-tests leet_code
[INFO] [stdout] test practice::heap::tests::basic ... ok
[INFO] [stdout] test string::p3::tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "fa137ce94ff2cbe87ac5a3e0cd4027b331517cb44814764f38fff5b8b04bfc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa137ce94ff2cbe87ac5a3e0cd4027b331517cb44814764f38fff5b8b04bfc3c", kill_on_drop: false }`
[INFO] [stdout] fa137ce94ff2cbe87ac5a3e0cd4027b331517cb44814764f38fff5b8b04bfc3c