[INFO] cloning repository https://github.com/reidswan/advent2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reidswan/advent2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fadvent2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fadvent2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f037dd644a033a24fec160dd58ab07e604137a6
[INFO] checking reidswan/advent2020 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fadvent2020" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reidswan/advent2020 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reidswan/advent2020
[INFO] finished tweaking git repo https://github.com/reidswan/advent2020
[INFO] tweaked toml for git repo https://github.com/reidswan/advent2020 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/reidswan/advent2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 626a0f7859ccb89b68c094a01e8d25d1120f2b6a16f04e2c90b8107dd191cbc9
[INFO] running `Command { std: "docker" "start" "-a" "626a0f7859ccb89b68c094a01e8d25d1120f2b6a16f04e2c90b8107dd191cbc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "626a0f7859ccb89b68c094a01e8d25d1120f2b6a16f04e2c90b8107dd191cbc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626a0f7859ccb89b68c094a01e8d25d1120f2b6a16f04e2c90b8107dd191cbc9", kill_on_drop: false }`
[INFO] [stdout] 626a0f7859ccb89b68c094a01e8d25d1120f2b6a16f04e2c90b8107dd191cbc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff6284694ad90dab64add0933e31c94db5e1858734519a9b6215965071f0bf11
[INFO] running `Command { std: "docker" "start" "-a" "ff6284694ad90dab64add0933e31c94db5e1858734519a9b6215965071f0bf11", kill_on_drop: false }`
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking day1 v0.1.0 (/opt/rustwide/workdir/day01)
[INFO] [stderr]     Checking day12 v0.1.0 (/opt/rustwide/workdir/day12)
[INFO] [stderr]     Checking day21 v0.1.0 (/opt/rustwide/workdir/day21)
[INFO] [stderr]     Checking day20 v0.1.0 (/opt/rustwide/workdir/day20)
[INFO] [stderr]     Checking day2 v0.1.0 (/opt/rustwide/workdir/day02)
[INFO] [stderr]     Checking day19 v0.1.0 (/opt/rustwide/workdir/day19)
[INFO] [stderr]     Checking day25 v0.1.0 (/opt/rustwide/workdir/day25)
[INFO] [stderr]     Checking day13 v0.1.0 (/opt/rustwide/workdir/day13)
[INFO] [stderr]     Checking day15 v0.1.0 (/opt/rustwide/workdir/day15)
[INFO] [stderr]     Checking day18 v0.1.0 (/opt/rustwide/workdir/day18)
[INFO] [stderr]     Checking day11 v0.1.0 (/opt/rustwide/workdir/day11)
[INFO] [stderr]     Checking day24 v0.1.0 (/opt/rustwide/workdir/day24)
[INFO] [stderr]     Checking day23 v0.1.0 (/opt/rustwide/workdir/day23)
[INFO] [stderr]     Checking day6 v0.1.0 (/opt/rustwide/workdir/day06)
[INFO] [stderr]     Checking day22 v0.1.0 (/opt/rustwide/workdir/day22)
[INFO] [stderr]     Checking day9 v0.1.0 (/opt/rustwide/workdir/day09)
[INFO] [stderr]     Checking day3 v0.1.0 (/opt/rustwide/workdir/day03)
[INFO] [stderr]     Checking day5 v0.1.0 (/opt/rustwide/workdir/day05)
[INFO] [stderr]     Checking day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> day20/src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn part2(input: &[Image]) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day17 v0.1.0 (/opt/rustwide/workdir/day17)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> day20/src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn part2(input: &[Image]) {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking day7 v0.1.0 (/opt/rustwide/workdir/day07)
[INFO] [stderr]     Checking day8 v0.1.0 (/opt/rustwide/workdir/day08)
[INFO] [stderr]     Checking day14 v0.1.0 (/opt/rustwide/workdir/day14)
[INFO] [stderr]     Checking day4 v0.1.0 (/opt/rustwide/workdir/day04)
[INFO] [stderr]     Checking day16 v0.1.0 (/opt/rustwide/workdir/day16)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `Command { std: "docker" "inspect" "ff6284694ad90dab64add0933e31c94db5e1858734519a9b6215965071f0bf11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6284694ad90dab64add0933e31c94db5e1858734519a9b6215965071f0bf11", kill_on_drop: false }`
[INFO] [stdout] ff6284694ad90dab64add0933e31c94db5e1858734519a9b6215965071f0bf11