[INFO] cloning repository https://github.com/alfieqashwa/rust-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alfieqashwa/rust-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falfieqashwa%2Frust-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falfieqashwa%2Frust-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e61aff9312f5b621f2d5d248bf1d584f0e0a29b
[INFO] checking alfieqashwa/rust-exercise against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falfieqashwa%2Frust-exercise" "/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/alfieqashwa/rust-exercise on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alfieqashwa/rust-exercise
[INFO] finished tweaking git repo https://github.com/alfieqashwa/rust-exercise
[INFO] tweaked toml for git repo https://github.com/alfieqashwa/rust-exercise written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alfieqashwa/rust-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--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-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f394bf5d82e45bbbfd721d65310b163fcdab2cee3cb1c3e1db2f99aa6a7fae9
[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" "8f394bf5d82e45bbbfd721d65310b163fcdab2cee3cb1c3e1db2f99aa6a7fae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f394bf5d82e45bbbfd721d65310b163fcdab2cee3cb1c3e1db2f99aa6a7fae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f394bf5d82e45bbbfd721d65310b163fcdab2cee3cb1c3e1db2f99aa6a7fae9", kill_on_drop: false }`
[INFO] [stdout] 8f394bf5d82e45bbbfd721d65310b163fcdab2cee3cb1c3e1db2f99aa6a7fae9
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d87a3257e6bed512b4a5a46f9e2195a08764b33445588b55d8fd685b473aa4e7
[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" "d87a3257e6bed512b4a5a46f9e2195a08764b33445588b55d8fd685b473aa4e7", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "d87a3257e6bed512b4a5a46f9e2195a08764b33445588b55d8fd685b473aa4e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d87a3257e6bed512b4a5a46f9e2195a08764b33445588b55d8fd685b473aa4e7", kill_on_drop: false }`
[INFO] [stdout] d87a3257e6bed512b4a5a46f9e2195a08764b33445588b55d8fd685b473aa4e7