[INFO] cloning repository https://github.com/dseres/AdventOfCode2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dseres/AdventOfCode2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdseres%2FAdventOfCode2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdseres%2FAdventOfCode2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab767e7e737ce65b0707d9ea650c193210d18f0b
[INFO] checking dseres/AdventOfCode2015 against master#bd71213cf0a765705e7d72a099151bd4eb465ccb for pr-123864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdseres%2FAdventOfCode2015" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dseres/AdventOfCode2015 on toolchain bd71213cf0a765705e7d72a099151bd4eb465ccb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dseres/AdventOfCode2015
[INFO] finished tweaking git repo https://github.com/dseres/AdventOfCode2015
[INFO] tweaked toml for git repo https://github.com/dseres/AdventOfCode2015 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dseres/AdventOfCode2015 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking dseres/AdventOfCode2015 against try#c0f799aeda763fc507814da0dc46c2dde7ca9133 for pr-123864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdseres%2FAdventOfCode2015" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dseres/AdventOfCode2015 on toolchain c0f799aeda763fc507814da0dc46c2dde7ca9133
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dseres/AdventOfCode2015
[INFO] finished tweaking git repo https://github.com/dseres/AdventOfCode2015
[INFO] tweaked toml for git repo https://github.com/dseres/AdventOfCode2015 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dseres/AdventOfCode2015 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutator v0.3.3
[INFO] [stderr]   Downloaded json v0.11.13
[INFO] [stderr]   Downloaded serde v1.0.87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f0ca588e93bf0c7428d3868c9fc4915a2eb2179b0231fff741b83e4773bd299
[INFO] running `Command { std: "docker" "start" "-a" "1f0ca588e93bf0c7428d3868c9fc4915a2eb2179b0231fff741b83e4773bd299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f0ca588e93bf0c7428d3868c9fc4915a2eb2179b0231fff741b83e4773bd299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0ca588e93bf0c7428d3868c9fc4915a2eb2179b0231fff741b83e4773bd299", kill_on_drop: false }`
[INFO] [stdout] 1f0ca588e93bf0c7428d3868c9fc4915a2eb2179b0231fff741b83e4773bd299
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2ac436b6bb67765ee61840cb548cb4662ca916ea9e42b34d65063235214b79c
[INFO] running `Command { std: "docker" "start" "-a" "d2ac436b6bb67765ee61840cb548cb4662ca916ea9e42b34d65063235214b79c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking json v0.11.13
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking permutator v0.3.3
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking aoc2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day22.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut effect = &mut self.effects[effect_idx];
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day22.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut effect = &mut self.effects[effect_idx];
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "d2ac436b6bb67765ee61840cb548cb4662ca916ea9e42b34d65063235214b79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ac436b6bb67765ee61840cb548cb4662ca916ea9e42b34d65063235214b79c", kill_on_drop: false }`
[INFO] [stdout] d2ac436b6bb67765ee61840cb548cb4662ca916ea9e42b34d65063235214b79c