[INFO] cloning repository https://github.com/developerworks/proc-macro-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/developerworks/proc-macro-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fproc-macro-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fproc-macro-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d9c951a68c5dcea7a6c39cfe4062557b63ccd5e
[INFO] checking developerworks/proc-macro-demo against master#59d99f56d8888b0e5a5866d6418df3ca1bb90013 for pr-100046
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeveloperworks%2Fproc-macro-demo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/developerworks/proc-macro-demo on toolchain 59d99f56d8888b0e5a5866d6418df3ca1bb90013
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+59d99f56d8888b0e5a5866d6418df3ca1bb90013" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/developerworks/proc-macro-demo
[INFO] finished tweaking git repo https://github.com/developerworks/proc-macro-demo
[INFO] tweaked toml for git repo https://github.com/developerworks/proc-macro-demo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/developerworks/proc-macro-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+59d99f56d8888b0e5a5866d6418df3ca1bb90013" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+59d99f56d8888b0e5a5866d6418df3ca1bb90013" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d866aad10f7ba3cb0a01435ff061763b550f4324bd0734407c53e07d2555ab88
[INFO] running `Command { std: "docker" "start" "-a" "d866aad10f7ba3cb0a01435ff061763b550f4324bd0734407c53e07d2555ab88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d866aad10f7ba3cb0a01435ff061763b550f4324bd0734407c53e07d2555ab88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d866aad10f7ba3cb0a01435ff061763b550f4324bd0734407c53e07d2555ab88", kill_on_drop: false }`
[INFO] [stdout] d866aad10f7ba3cb0a01435ff061763b550f4324bd0734407c53e07d2555ab88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+59d99f56d8888b0e5a5866d6418df3ca1bb90013" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e4b769d74ad29acc5531cbc74ac2ae8a2d36dc784ca43bbfc6112f02e84dfc3
[INFO] running `Command { std: "docker" "start" "-a" "1e4b769d74ad29acc5531cbc74ac2ae8a2d36dc784ca43bbfc6112f02e84dfc3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1e4b769d74ad29acc5531cbc74ac2ae8a2d36dc784ca43bbfc6112f02e84dfc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4b769d74ad29acc5531cbc74ac2ae8a2d36dc784ca43bbfc6112f02e84dfc3", kill_on_drop: false }`
[INFO] [stdout] 1e4b769d74ad29acc5531cbc74ac2ae8a2d36dc784ca43bbfc6112f02e84dfc3