[INFO] cloning repository https://github.com/zarif-al/rustbook-ch12-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zarif-al/rustbook-ch12-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzarif-al%2Frustbook-ch12-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzarif-al%2Frustbook-ch12-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1837ccc5e607082a653ce7a228d3c4768b5e181b
[INFO] checking zarif-al/rustbook-ch12-exercise against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzarif-al%2Frustbook-ch12-exercise" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zarif-al/rustbook-ch12-exercise on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zarif-al/rustbook-ch12-exercise
[INFO] finished tweaking git repo https://github.com/zarif-al/rustbook-ch12-exercise
[INFO] tweaked toml for git repo https://github.com/zarif-al/rustbook-ch12-exercise written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zarif-al/rustbook-ch12-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b92b250960ffbc04cde973c1905248784a0b4569c998b30946d26acbd1b05d53
[INFO] running `Command { std: "docker" "start" "-a" "b92b250960ffbc04cde973c1905248784a0b4569c998b30946d26acbd1b05d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b92b250960ffbc04cde973c1905248784a0b4569c998b30946d26acbd1b05d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92b250960ffbc04cde973c1905248784a0b4569c998b30946d26acbd1b05d53", kill_on_drop: false }`
[INFO] [stdout] b92b250960ffbc04cde973c1905248784a0b4569c998b30946d26acbd1b05d53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9775201a486c5e8b43913da088f81abaf25f92c6a4871815216cb6b71a21593
[INFO] running `Command { std: "docker" "start" "-a" "e9775201a486c5e8b43913da088f81abaf25f92c6a4871815216cb6b71a21593", kill_on_drop: false }`
[INFO] [stderr]     Checking workspace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "e9775201a486c5e8b43913da088f81abaf25f92c6a4871815216cb6b71a21593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9775201a486c5e8b43913da088f81abaf25f92c6a4871815216cb6b71a21593", kill_on_drop: false }`
[INFO] [stdout] e9775201a486c5e8b43913da088f81abaf25f92c6a4871815216cb6b71a21593