[INFO] cloning repository https://github.com/asllop/tref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asllop/tref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasllop%2Ftref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasllop%2Ftref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f906b404b0ba5413d23fb230719845b712b5e21f
[INFO] checking asllop/tref against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasllop%2Ftref" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/asllop/tref 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/asllop/tref
[INFO] finished tweaking git repo https://github.com/asllop/tref
[INFO] tweaked toml for git repo https://github.com/asllop/tref written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/asllop/tref 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a1f03ffbbea5dacf27b0328588f25753752f5506c54621fe9ce30d0a8c1da0e9
[INFO] running `Command { std: "docker" "start" "-a" "a1f03ffbbea5dacf27b0328588f25753752f5506c54621fe9ce30d0a8c1da0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1f03ffbbea5dacf27b0328588f25753752f5506c54621fe9ce30d0a8c1da0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1f03ffbbea5dacf27b0328588f25753752f5506c54621fe9ce30d0a8c1da0e9", kill_on_drop: false }`
[INFO] [stdout] a1f03ffbbea5dacf27b0328588f25753752f5506c54621fe9ce30d0a8c1da0e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] f5073ef52d4e6f8caa6f0a0b06932d2401a45e51808b62f4717afe3aadf0fe17
[INFO] running `Command { std: "docker" "start" "-a" "f5073ef52d4e6f8caa6f0a0b06932d2401a45e51808b62f4717afe3aadf0fe17", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking tref v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "f5073ef52d4e6f8caa6f0a0b06932d2401a45e51808b62f4717afe3aadf0fe17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5073ef52d4e6f8caa6f0a0b06932d2401a45e51808b62f4717afe3aadf0fe17", kill_on_drop: false }`
[INFO] [stdout] f5073ef52d4e6f8caa6f0a0b06932d2401a45e51808b62f4717afe3aadf0fe17