[INFO] cloning repository https://github.com/ilmanzo/aoc_2015_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ilmanzo/aoc_2015_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filmanzo%2Faoc_2015_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filmanzo%2Faoc_2015_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 188b798d0ad7335abd2e8a8e2d50c12b0b651b2a
[INFO] checking ilmanzo/aoc_2015_rust against master#96cfc75584359ae7ad11cc45968059f29e7b44b7 for pr-137728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filmanzo%2Faoc_2015_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ilmanzo/aoc_2015_rust on toolchain 96cfc75584359ae7ad11cc45968059f29e7b44b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ilmanzo/aoc_2015_rust
[INFO] finished tweaking git repo https://github.com/ilmanzo/aoc_2015_rust
[INFO] tweaked toml for git repo https://github.com/ilmanzo/aoc_2015_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ilmanzo/aoc_2015_rust 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" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d752e801ae3aa6ac7b6237fc1502bd65af78b17cadedf580596b031c0ac72ff4
[INFO] running `Command { std: "docker" "start" "-a" "d752e801ae3aa6ac7b6237fc1502bd65af78b17cadedf580596b031c0ac72ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d752e801ae3aa6ac7b6237fc1502bd65af78b17cadedf580596b031c0ac72ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d752e801ae3aa6ac7b6237fc1502bd65af78b17cadedf580596b031c0ac72ff4", kill_on_drop: false }`
[INFO] [stdout] d752e801ae3aa6ac7b6237fc1502bd65af78b17cadedf580596b031c0ac72ff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ae89d9c3d11e311d75aeffdea6dc2621d14c45e85b96910deb9ce2545a2caf1
[INFO] running `Command { std: "docker" "start" "-a" "2ae89d9c3d11e311d75aeffdea6dc2621d14c45e85b96910deb9ce2545a2caf1", kill_on_drop: false }`
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking advent_of_code v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::OpenOptions`
[INFO] [stdout]  --> src/bin/04.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::Write, fs::OpenOptions};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::OpenOptions`
[INFO] [stdout]  --> src/bin/04.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::Write, fs::OpenOptions};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "2ae89d9c3d11e311d75aeffdea6dc2621d14c45e85b96910deb9ce2545a2caf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae89d9c3d11e311d75aeffdea6dc2621d14c45e85b96910deb9ce2545a2caf1", kill_on_drop: false }`
[INFO] [stdout] 2ae89d9c3d11e311d75aeffdea6dc2621d14c45e85b96910deb9ce2545a2caf1