[INFO] cloning repository https://github.com/AHPirate/learn_rust_by_example_for_me
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AHPirate/learn_rust_by_example_for_me" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAHPirate%2Flearn_rust_by_example_for_me", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAHPirate%2Flearn_rust_by_example_for_me'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54dab779bfd8bd217a026235e81ea1ce8bf19b4c
[INFO] checking AHPirate/learn_rust_by_example_for_me against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAHPirate%2Flearn_rust_by_example_for_me" "/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/AHPirate/learn_rust_by_example_for_me on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AHPirate/learn_rust_by_example_for_me
[INFO] finished tweaking git repo https://github.com/AHPirate/learn_rust_by_example_for_me
[INFO] tweaked toml for git repo https://github.com/AHPirate/learn_rust_by_example_for_me written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/AHPirate/learn_rust_by_example_for_me already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 607d7a2e7d2eb3db083fe48b38c45724b07c721769f97e4a6e50d98bcc3e5acc
[INFO] running `Command { std: "docker" "start" "-a" "607d7a2e7d2eb3db083fe48b38c45724b07c721769f97e4a6e50d98bcc3e5acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "607d7a2e7d2eb3db083fe48b38c45724b07c721769f97e4a6e50d98bcc3e5acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607d7a2e7d2eb3db083fe48b38c45724b07c721769f97e4a6e50d98bcc3e5acc", kill_on_drop: false }`
[INFO] [stdout] 607d7a2e7d2eb3db083fe48b38c45724b07c721769f97e4a6e50d98bcc3e5acc
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3846b1a36d2a2cdcb83bb59c4fa2bbb2db716d22837784bf1cd0919535eff2d2
[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" "3846b1a36d2a2cdcb83bb59c4fa2bbb2db716d22837784bf1cd0919535eff2d2", kill_on_drop: false }`
[INFO] [stderr]     Checking example_learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "3846b1a36d2a2cdcb83bb59c4fa2bbb2db716d22837784bf1cd0919535eff2d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3846b1a36d2a2cdcb83bb59c4fa2bbb2db716d22837784bf1cd0919535eff2d2", kill_on_drop: false }`
[INFO] [stdout] 3846b1a36d2a2cdcb83bb59c4fa2bbb2db716d22837784bf1cd0919535eff2d2