[INFO] cloning repository https://github.com/hygt/aoc2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hygt/aoc2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhygt%2Faoc2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhygt%2Faoc2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f286deb972eaf2daf00125c4813ae05d6655852
[INFO] checking hygt/aoc2018 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhygt%2Faoc2018" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hygt/aoc2018 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hygt/aoc2018
[INFO] finished tweaking git repo https://github.com/hygt/aoc2018
[INFO] tweaked toml for git repo https://github.com/hygt/aoc2018 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hygt/aoc2018 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-vec v0.5.0
[INFO] [stderr]   Downloaded edit-distance v2.0.1
[INFO] [stderr]   Downloaded bit-set v0.5.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.50
[INFO] [stderr]   Downloaded libc v0.2.46
[INFO] [stderr]   Downloaded linked-list v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8d7aa4ee0782f2f065de856ebb773281b7cdaefae4f55a32db29142b0f29e39
[INFO] running `Command { std: "docker" "start" "-a" "a8d7aa4ee0782f2f065de856ebb773281b7cdaefae4f55a32db29142b0f29e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8d7aa4ee0782f2f065de856ebb773281b7cdaefae4f55a32db29142b0f29e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d7aa4ee0782f2f065de856ebb773281b7cdaefae4f55a32db29142b0f29e39", kill_on_drop: false }`
[INFO] [stdout] a8d7aa4ee0782f2f065de856ebb773281b7cdaefae4f55a32db29142b0f29e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3063c511ccd99394e24f34a0a4def549bc94987a9cc52ee495e384ffb7559e0d
[INFO] running `Command { std: "docker" "start" "-a" "3063c511ccd99394e24f34a0a4def549bc94987a9cc52ee495e384ffb7559e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking linked-list v0.0.3
[INFO] [stderr]     Checking edit-distance v2.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking bit-set v0.5.0
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking aoc2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `size`, `x`, and `y` are never read
[INFO] [stdout]   --> src/bin/day11.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Square {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 25 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     x: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 27 |     y: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Square` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size`, `x`, and `y` are never read
[INFO] [stdout]   --> src/bin/day11.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Square {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 25 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     x: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 27 |     y: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Square` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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/day04.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let mut minutes = guards.entry(guard_id).or_insert(vec![0u32; 60]);
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day04.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let mut minutes = guards.entry(guard_id).or_insert(vec![0u32; 60]);
[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 4.92s
[INFO] running `Command { std: "docker" "inspect" "3063c511ccd99394e24f34a0a4def549bc94987a9cc52ee495e384ffb7559e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3063c511ccd99394e24f34a0a4def549bc94987a9cc52ee495e384ffb7559e0d", kill_on_drop: false }`
[INFO] [stdout] 3063c511ccd99394e24f34a0a4def549bc94987a9cc52ee495e384ffb7559e0d