[INFO] cloning repository https://github.com/xing0821/codewar-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xing0821/codewar-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxing0821%2Fcodewar-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxing0821%2Fcodewar-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5038a7a5f054df4a82fff5a1cec2368f6d9949e
[INFO] checking xing0821/codewar-rust against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxing0821%2Fcodewar-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xing0821/codewar-rust on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xing0821/codewar-rust
[INFO] finished tweaking git repo https://github.com/xing0821/codewar-rust
[INFO] tweaked toml for git repo https://github.com/xing0821/codewar-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/xing0821/codewar-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6662db28057859542bbd4eb48af96f9fa43d9c6e00090075651b2b8e44f4f6f
[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" "c6662db28057859542bbd4eb48af96f9fa43d9c6e00090075651b2b8e44f4f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6662db28057859542bbd4eb48af96f9fa43d9c6e00090075651b2b8e44f4f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6662db28057859542bbd4eb48af96f9fa43d9c6e00090075651b2b8e44f4f6f", kill_on_drop: false }`
[INFO] [stdout] c6662db28057859542bbd4eb48af96f9fa43d9c6e00090075651b2b8e44f4f6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05d6d8433e22b7fc45ed5ac6b90b51e0e504740d75e4fd8791b45f5a3d39c647
[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" "05d6d8433e22b7fc45ed5ac6b90b51e0e504740d75e4fd8791b45f5a3d39c647", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking codewars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable if-let pattern
[INFO] [stdout]   --> src/code/open_or_senior.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 | /             if let (a,b) = x {
[INFO] [stdout] 35 | |                 if a >= &55 && b > &7 {
[INFO] [stdout] 36 | |                     return senior.clone()
[INFO] [stdout] 37 | |                 }
[INFO] [stdout] 38 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable if-let pattern
[INFO] [stdout]   --> src/code/open_or_senior.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 | /             if let (a,b) = x {
[INFO] [stdout] 35 | |                 if a >= &55 && b > &7 {
[INFO] [stdout] 36 | |                     return senior.clone()
[INFO] [stdout] 37 | |                 }
[INFO] [stdout] 38 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` 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 7.97s
[INFO] running `Command { std: "docker" "inspect" "05d6d8433e22b7fc45ed5ac6b90b51e0e504740d75e4fd8791b45f5a3d39c647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d6d8433e22b7fc45ed5ac6b90b51e0e504740d75e4fd8791b45f5a3d39c647", kill_on_drop: false }`
[INFO] [stdout] 05d6d8433e22b7fc45ed5ac6b90b51e0e504740d75e4fd8791b45f5a3d39c647