[INFO] cloning repository https://github.com/cicvedu/rust-rustlings-piaohailin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cicvedu/rust-rustlings-piaohailin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-piaohailin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-piaohailin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b87d5c4aa845a02fb6c666911459450fbfa95d07
[INFO] checking cicvedu/rust-rustlings-piaohailin/b87d5c4aa845a02fb6c666911459450fbfa95d07 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-piaohailin" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cicvedu/rust-rustlings-piaohailin on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cicvedu/rust-rustlings-piaohailin
[INFO] finished tweaking git repo https://github.com/cicvedu/rust-rustlings-piaohailin
[INFO] tweaked toml for git repo https://github.com/cicvedu/rust-rustlings-piaohailin written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cicvedu/rust-rustlings-piaohailin 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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bb6cb8e17a2b07747e74d4298a81186627f89d8073f216facd113ea08ab5949
[INFO] running `Command { std: "docker" "start" "-a" "3bb6cb8e17a2b07747e74d4298a81186627f89d8073f216facd113ea08ab5949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bb6cb8e17a2b07747e74d4298a81186627f89d8073f216facd113ea08ab5949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb6cb8e17a2b07747e74d4298a81186627f89d8073f216facd113ea08ab5949", kill_on_drop: false }`
[INFO] [stdout] 3bb6cb8e17a2b07747e74d4298a81186627f89d8073f216facd113ea08ab5949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eb807f15e46e38ae4fafa06d71fefd569b18965675e2a69d5719ae690d7d9d7
[INFO] running `Command { std: "docker" "start" "-a" "6eb807f15e46e38ae4fafa06d71fefd569b18965675e2a69d5719ae690d7d9d7", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "6eb807f15e46e38ae4fafa06d71fefd569b18965675e2a69d5719ae690d7d9d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb807f15e46e38ae4fafa06d71fefd569b18965675e2a69d5719ae690d7d9d7", kill_on_drop: false }`
[INFO] [stdout] 6eb807f15e46e38ae4fafa06d71fefd569b18965675e2a69d5719ae690d7d9d7