[INFO] cloning repository https://github.com/w0rdsm1th/advent_of_code_2020_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/w0rdsm1th/advent_of_code_2020_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw0rdsm1th%2Fadvent_of_code_2020_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw0rdsm1th%2Fadvent_of_code_2020_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9aab1e3a7cd72afde582b8f7fe961ae7481439a
[INFO] checking w0rdsm1th/advent_of_code_2020_rust against try#d7b15db413fd2070daa09a2c5b7f2ab38417429f for pr-144544
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw0rdsm1th%2Fadvent_of_code_2020_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust
[INFO] finished tweaking git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust
[INFO] tweaked toml for git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust on toolchain d7b15db413fd2070daa09a2c5b7f2ab38417429f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/w0rdsm1th/advent_of_code_2020_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" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking w0rdsm1th/advent_of_code_2020_rust against try#d7b15db413fd2070daa09a2c5b7f2ab38417429f for pr-144544
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw0rdsm1th%2Fadvent_of_code_2020_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust
[INFO] finished tweaking git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust
[INFO] tweaked toml for git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w0rdsm1th/advent_of_code_2020_rust on toolchain d7b15db413fd2070daa09a2c5b7f2ab38417429f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/w0rdsm1th/advent_of_code_2020_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" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "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-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e487ab14e86956f3ecbb280e26f16259f5a3618f609a103217f2e0a66d958d0
[INFO] running `Command { std: "docker" "start" "-a" "6e487ab14e86956f3ecbb280e26f16259f5a3618f609a103217f2e0a66d958d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e487ab14e86956f3ecbb280e26f16259f5a3618f609a103217f2e0a66d958d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e487ab14e86956f3ecbb280e26f16259f5a3618f609a103217f2e0a66d958d0", kill_on_drop: false }`
[INFO] [stdout] 6e487ab14e86956f3ecbb280e26f16259f5a3618f609a103217f2e0a66d958d0
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8382f602e31f55f9e8b0d84446e32660e4a521a5ba07ce2fac4b766af09e316b
[INFO] running `Command { std: "docker" "start" "-a" "8382f602e31f55f9e8b0d84446e32660e4a521a5ba07ce2fac4b766af09e316b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking advent_of_code_2020_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `current_dir` is never used
[INFO] [stdout]   --> src/utils.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn current_dir() -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/day8.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn part1(inp: &str) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/utils.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         current_dir();
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = current_dir();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "8382f602e31f55f9e8b0d84446e32660e4a521a5ba07ce2fac4b766af09e316b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8382f602e31f55f9e8b0d84446e32660e4a521a5ba07ce2fac4b766af09e316b", kill_on_drop: false }`
[INFO] [stdout] 8382f602e31f55f9e8b0d84446e32660e4a521a5ba07ce2fac4b766af09e316b