[INFO] cloning repository https://github.com/noda-sin/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noda-sin/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoda-sin%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoda-sin%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb821db49cb486b626079554db2a4c091fc33547
[INFO] checking noda-sin/leetcode against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoda-sin%2Fleetcode" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/noda-sin/leetcode on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/noda-sin/leetcode
[INFO] finished tweaking git repo https://github.com/noda-sin/leetcode
[INFO] tweaked toml for git repo https://github.com/noda-sin/leetcode written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/noda-sin/leetcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 953dc27d612224a798ebd454c01397ed0c92dd20fb736ef014eff8c8a2d13bb9
[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" "953dc27d612224a798ebd454c01397ed0c92dd20fb736ef014eff8c8a2d13bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "953dc27d612224a798ebd454c01397ed0c92dd20fb736ef014eff8c8a2d13bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953dc27d612224a798ebd454c01397ed0c92dd20fb736ef014eff8c8a2d13bb9", kill_on_drop: false }`
[INFO] [stdout] 953dc27d612224a798ebd454c01397ed0c92dd20fb736ef014eff8c8a2d13bb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--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] 51c421f92532a23cb80cd51afe5c7a4e641e403728a14950d61a8e8e01624644
[INFO] running `Command { std: "docker" "start" "-a" "51c421f92532a23cb80cd51afe5c7a4e641e403728a14950d61a8e8e01624644", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s20200221_broken_calculator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `broken_calc`
[INFO] [stdout]  --> src/solution/s20200221_broken_calculator.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn broken_calc(x: i32, y: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "51c421f92532a23cb80cd51afe5c7a4e641e403728a14950d61a8e8e01624644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c421f92532a23cb80cd51afe5c7a4e641e403728a14950d61a8e8e01624644", kill_on_drop: false }`
[INFO] [stdout] 51c421f92532a23cb80cd51afe5c7a4e641e403728a14950d61a8e8e01624644