[INFO] cloning repository https://github.com/BWBellairs/rusthelloworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BWBellairs/rusthelloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBWBellairs%2Frusthelloworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBWBellairs%2Frusthelloworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2ac0d28420d89f76fb2fedc89702a6b74436bef
[INFO] checking BWBellairs/rusthelloworld against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBWBellairs%2Frusthelloworld" "/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/BWBellairs/rusthelloworld 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/BWBellairs/rusthelloworld
[INFO] finished tweaking git repo https://github.com/BWBellairs/rusthelloworld
[INFO] tweaked toml for git repo https://github.com/BWBellairs/rusthelloworld written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/BWBellairs/rusthelloworld 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-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1603fa6257cdad97e491e3a101b190218ff54fc104bfc6aaadd60ad8c81d0e5c
[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" "1603fa6257cdad97e491e3a101b190218ff54fc104bfc6aaadd60ad8c81d0e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1603fa6257cdad97e491e3a101b190218ff54fc104bfc6aaadd60ad8c81d0e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1603fa6257cdad97e491e3a101b190218ff54fc104bfc6aaadd60ad8c81d0e5c", kill_on_drop: false }`
[INFO] [stdout] 1603fa6257cdad97e491e3a101b190218ff54fc104bfc6aaadd60ad8c81d0e5c
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 321aa45c2fa0f82eb272cd403886bc6f7f07fb019d6bece08903c0e9b848c94d
[INFO] running `Command { std: "docker" "start" "-a" "321aa45c2fa0f82eb272cd403886bc6f7f07fb019d6bece08903c0e9b848c94d", kill_on_drop: false }`
[INFO] [stderr]     Checking rusthelloworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "321aa45c2fa0f82eb272cd403886bc6f7f07fb019d6bece08903c0e9b848c94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321aa45c2fa0f82eb272cd403886bc6f7f07fb019d6bece08903c0e9b848c94d", kill_on_drop: false }`
[INFO] [stdout] 321aa45c2fa0f82eb272cd403886bc6f7f07fb019d6bece08903c0e9b848c94d