[INFO] cloning repository https://github.com/megumish/megulang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/megumish/megulang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegumish%2Fmegulang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegumish%2Fmegulang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b09ed86bd82eb295e07e7e4b00fe44454d01ae89
[INFO] checking megumish/megulang against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegumish%2Fmegulang" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/megumish/megulang on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/megumish/megulang
[INFO] finished tweaking git repo https://github.com/megumish/megulang
[INFO] tweaked toml for git repo https://github.com/megumish/megulang written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/megumish/megulang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc7ff5126135dc0ca4a17f72600ddba8b982669b6ca8d907e88813146512470f
[INFO] running `Command { std: "docker" "start" "-a" "cc7ff5126135dc0ca4a17f72600ddba8b982669b6ca8d907e88813146512470f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc7ff5126135dc0ca4a17f72600ddba8b982669b6ca8d907e88813146512470f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7ff5126135dc0ca4a17f72600ddba8b982669b6ca8d907e88813146512470f", kill_on_drop: false }`
[INFO] [stdout] cc7ff5126135dc0ca4a17f72600ddba8b982669b6ca8d907e88813146512470f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 664b977ba578a52cbb9ccfb5bea7e350ff281e80baeb6bb79696d61fd81cf9a2
[INFO] running `Command { std: "docker" "start" "-a" "664b977ba578a52cbb9ccfb5bea7e350ff281e80baeb6bb79696d61fd81cf9a2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking megumeguvm v0.1.0 (/opt/rustwide/workdir/megumeguvm)
[INFO] [stderr]     Checking megulang v0.1.0 (/opt/rustwide/workdir/megulang)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "664b977ba578a52cbb9ccfb5bea7e350ff281e80baeb6bb79696d61fd81cf9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664b977ba578a52cbb9ccfb5bea7e350ff281e80baeb6bb79696d61fd81cf9a2", kill_on_drop: false }`
[INFO] [stdout] 664b977ba578a52cbb9ccfb5bea7e350ff281e80baeb6bb79696d61fd81cf9a2