[INFO] cloning repository https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacekJaszczuk%2FMrowkowy_Komiwojazer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacekJaszczuk%2FMrowkowy_Komiwojazer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4e4ead6497838b0e5e07c692f50250dcd0ac5d6
[INFO] checking JacekJaszczuk/Mrowkowy_Komiwojazer against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacekJaszczuk%2FMrowkowy_Komiwojazer" "/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/JacekJaszczuk/Mrowkowy_Komiwojazer on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer
[INFO] finished tweaking git repo https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer
[INFO] tweaked toml for git repo https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/JacekJaszczuk/Mrowkowy_Komiwojazer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 086ec410579c57503e84fb76d496178a7659fa943d51139d1ba378539d66de18
[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" "086ec410579c57503e84fb76d496178a7659fa943d51139d1ba378539d66de18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "086ec410579c57503e84fb76d496178a7659fa943d51139d1ba378539d66de18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086ec410579c57503e84fb76d496178a7659fa943d51139d1ba378539d66de18", kill_on_drop: false }`
[INFO] [stdout] 086ec410579c57503e84fb76d496178a7659fa943d51139d1ba378539d66de18
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12289c77036ce106b036d91c676c92fc503d21f1b7e2b5a85ed4b2d09b3ffc16
[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" "12289c77036ce106b036d91c676c92fc503d21f1b7e2b5a85ed4b2d09b3ffc16", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.2
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking serde_json v1.0.34
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]     Checking algorytm_mrowkowy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.97s
[INFO] running `Command { std: "docker" "inspect" "12289c77036ce106b036d91c676c92fc503d21f1b7e2b5a85ed4b2d09b3ffc16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12289c77036ce106b036d91c676c92fc503d21f1b7e2b5a85ed4b2d09b3ffc16", kill_on_drop: false }`
[INFO] [stdout] 12289c77036ce106b036d91c676c92fc503d21f1b7e2b5a85ed4b2d09b3ffc16