[INFO] fetching crate advent-of-code 2019.12.269...
[INFO] checking advent-of-code-2019.12.269 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] extracting crate advent-of-code 2019.12.269 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate advent-of-code 2019.12.269 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate advent-of-code 2019.12.269
[INFO] finished tweaking crates.io crate advent-of-code 2019.12.269
[INFO] tweaked toml for crates.io crate advent-of-code 2019.12.269 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate advent-of-code 2019.12.269 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded allocation-counter v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5549ec59b26338d93dbc1e5a24ca71afc002f6aedf11bd9872d15eb6fe6989f7
[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" "5549ec59b26338d93dbc1e5a24ca71afc002f6aedf11bd9872d15eb6fe6989f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5549ec59b26338d93dbc1e5a24ca71afc002f6aedf11bd9872d15eb6fe6989f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5549ec59b26338d93dbc1e5a24ca71afc002f6aedf11bd9872d15eb6fe6989f7", kill_on_drop: false }`
[INFO] [stdout] 5549ec59b26338d93dbc1e5a24ca71afc002f6aedf11bd9872d15eb6fe6989f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "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] 11ce398c841b7687e13d1d95c6c2ee73735f0c040addf09cc23235d978e4f4ae
[INFO] running `Command { std: "docker" "start" "-a" "11ce398c841b7687e13d1d95c6c2ee73735f0c040addf09cc23235d978e4f4ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking advent-of-code v2019.12.269 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/year2018/day02.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/year2018/day02.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` 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 33.83s
[INFO] running `Command { std: "docker" "inspect" "11ce398c841b7687e13d1d95c6c2ee73735f0c040addf09cc23235d978e4f4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ce398c841b7687e13d1d95c6c2ee73735f0c040addf09cc23235d978e4f4ae", kill_on_drop: false }`
[INFO] [stdout] 11ce398c841b7687e13d1d95c6c2ee73735f0c040addf09cc23235d978e4f4ae