[INFO] cloning repository https://github.com/guillaumearm/rust_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guillaumearm/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguillaumearm%2Frust_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguillaumearm%2Frust_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4d0d0a3a9f17c426812c4fe1e84cdf0702a89b5
[INFO] checking guillaumearm/rust_playground against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125107-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguillaumearm%2Frust_playground" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guillaumearm/rust_playground on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guillaumearm/rust_playground
[INFO] finished tweaking git repo https://github.com/guillaumearm/rust_playground
[INFO] tweaked toml for git repo https://github.com/guillaumearm/rust_playground written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/guillaumearm/rust_playground 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56ea5a40fd2cbe67ca073cdb26a557c3d01aaa8b0608ddccd49c75256a63e7e4
[INFO] running `Command { std: "docker" "start" "-a" "56ea5a40fd2cbe67ca073cdb26a557c3d01aaa8b0608ddccd49c75256a63e7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56ea5a40fd2cbe67ca073cdb26a557c3d01aaa8b0608ddccd49c75256a63e7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ea5a40fd2cbe67ca073cdb26a557c3d01aaa8b0608ddccd49c75256a63e7e4", kill_on_drop: false }`
[INFO] [stdout] 56ea5a40fd2cbe67ca073cdb26a557c3d01aaa8b0608ddccd49c75256a63e7e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89fd1fa89f095ebd8bbcbe4e514f111eeccb8e514ee2169e6d5d335ea6fa6aa8
[INFO] running `Command { std: "docker" "start" "-a" "89fd1fa89f095ebd8bbcbe4e514f111eeccb8e514ee2169e6d5d335ea6fa6aa8", kill_on_drop: false }`
[INFO] [stderr]     Checking garm_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "89fd1fa89f095ebd8bbcbe4e514f111eeccb8e514ee2169e6d5d335ea6fa6aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89fd1fa89f095ebd8bbcbe4e514f111eeccb8e514ee2169e6d5d335ea6fa6aa8", kill_on_drop: false }`
[INFO] [stdout] 89fd1fa89f095ebd8bbcbe4e514f111eeccb8e514ee2169e6d5d335ea6fa6aa8