[INFO] cloning repository https://github.com/jbesraa/cracking-the-coding-interview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jbesraa/cracking-the-coding-interview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbesraa%2Fcracking-the-coding-interview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbesraa%2Fcracking-the-coding-interview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11ce5cab4cd6de8f605d98ece0fef8fb79043422
[INFO] checking jbesraa/cracking-the-coding-interview against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbesraa%2Fcracking-the-coding-interview" "/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/jbesraa/cracking-the-coding-interview on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jbesraa/cracking-the-coding-interview
[INFO] finished tweaking git repo https://github.com/jbesraa/cracking-the-coding-interview
[INFO] tweaked toml for git repo https://github.com/jbesraa/cracking-the-coding-interview written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jbesraa/cracking-the-coding-interview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff47d85bf50dad4d4cc6ebd6d82bf48753c7ce1a4d812632617c7a53583b057f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff47d85bf50dad4d4cc6ebd6d82bf48753c7ce1a4d812632617c7a53583b057f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff47d85bf50dad4d4cc6ebd6d82bf48753c7ce1a4d812632617c7a53583b057f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff47d85bf50dad4d4cc6ebd6d82bf48753c7ce1a4d812632617c7a53583b057f", kill_on_drop: false }`
[INFO] [stdout] ff47d85bf50dad4d4cc6ebd6d82bf48753c7ce1a4d812632617c7a53583b057f
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 728cc4c4e21cbf7c81f51869236fc7810583ce1779b59ba13d80838027d349db
[INFO] running `Command { std: "docker" "start" "-a" "728cc4c4e21cbf7c81f51869236fc7810583ce1779b59ba13d80838027d349db", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking cracking-coding-interview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "728cc4c4e21cbf7c81f51869236fc7810583ce1779b59ba13d80838027d349db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728cc4c4e21cbf7c81f51869236fc7810583ce1779b59ba13d80838027d349db", kill_on_drop: false }`
[INFO] [stdout] 728cc4c4e21cbf7c81f51869236fc7810583ce1779b59ba13d80838027d349db