[INFO] cloning repository https://github.com/iLexN/rust-md-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iLexN/rust-md-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiLexN%2Frust-md-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiLexN%2Frust-md-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15b6e80d445350e8b6fbbc48cfe3ef1a29f38352
[INFO] checking iLexN/rust-md-learn against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiLexN%2Frust-md-learn" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iLexN/rust-md-learn on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iLexN/rust-md-learn
[INFO] finished tweaking git repo https://github.com/iLexN/rust-md-learn
[INFO] tweaked toml for git repo https://github.com/iLexN/rust-md-learn written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/iLexN/rust-md-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", 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] baa95564ae260b8cb3839a1db536207fb64c7f6b60caefa2a8f22a6b267c1ce3
[INFO] running `Command { std: "docker" "start" "-a" "baa95564ae260b8cb3839a1db536207fb64c7f6b60caefa2a8f22a6b267c1ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baa95564ae260b8cb3839a1db536207fb64c7f6b60caefa2a8f22a6b267c1ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baa95564ae260b8cb3839a1db536207fb64c7f6b60caefa2a8f22a6b267c1ce3", kill_on_drop: false }`
[INFO] [stdout] baa95564ae260b8cb3839a1db536207fb64c7f6b60caefa2a8f22a6b267c1ce3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4f6e3b016d659bbcad50b570dffa8ed05fe7b463fb1bc4554be24a21c7c9a30
[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" "e4f6e3b016d659bbcad50b570dffa8ed05fe7b463fb1bc4554be24a21c7c9a30", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-md-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "e4f6e3b016d659bbcad50b570dffa8ed05fe7b463fb1bc4554be24a21c7c9a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f6e3b016d659bbcad50b570dffa8ed05fe7b463fb1bc4554be24a21c7c9a30", kill_on_drop: false }`
[INFO] [stdout] e4f6e3b016d659bbcad50b570dffa8ed05fe7b463fb1bc4554be24a21c7c9a30