[INFO] cloning repository https://github.com/voberle/synacor-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/voberle/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoberle%2Fsynacor-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoberle%2Fsynacor-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d2abd7a7eadb1250bf9e0c07293ff3846f7ebb0
[INFO] checking voberle/synacor-challenge against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoberle%2Fsynacor-challenge" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voberle/synacor-challenge on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/voberle/synacor-challenge
[INFO] finished tweaking git repo https://github.com/voberle/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/voberle/synacor-challenge written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/voberle/synacor-challenge 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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5b5b8aeb81877bdbf41da1825f926bad57c44ab925e307c43291c982141990e
[INFO] running `Command { std: "docker" "start" "-a" "f5b5b8aeb81877bdbf41da1825f926bad57c44ab925e307c43291c982141990e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5b5b8aeb81877bdbf41da1825f926bad57c44ab925e307c43291c982141990e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b5b8aeb81877bdbf41da1825f926bad57c44ab925e307c43291c982141990e", kill_on_drop: false }`
[INFO] [stdout] f5b5b8aeb81877bdbf41da1825f926bad57c44ab925e307c43291c982141990e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da53aaf9da2ccc1a1c5cf78e12ff246cb60630d10ace5561f206133293d96701
[INFO] running `Command { std: "docker" "start" "-a" "da53aaf9da2ccc1a1c5cf78e12ff246cb60630d10ace5561f206133293d96701", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rayon::prelude::*`
[INFO] [stdout]  --> src/maze/teleporter_code.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::prelude::*;
[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 7.92s
[INFO] running `Command { std: "docker" "inspect" "da53aaf9da2ccc1a1c5cf78e12ff246cb60630d10ace5561f206133293d96701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da53aaf9da2ccc1a1c5cf78e12ff246cb60630d10ace5561f206133293d96701", kill_on_drop: false }`
[INFO] [stdout] da53aaf9da2ccc1a1c5cf78e12ff246cb60630d10ace5561f206133293d96701