[INFO] cloning repository https://github.com/andream7/droll_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andream7/droll_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandream7%2Fdroll_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandream7%2Fdroll_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e727fe7f64b4195fb9c894a93c1e6fb6801edbd2
[INFO] testing andream7/droll_os against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandream7%2Fdroll_os" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andream7/droll_os on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andream7/droll_os
[INFO] finished tweaking git repo https://github.com/andream7/droll_os
[INFO] tweaked toml for git repo https://github.com/andream7/droll_os written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/andream7/droll_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f453c1c5a98a4b002054f84607ecf023121556cf02378f25c1668c1e36c08445
[INFO] running `Command { std: "docker" "start" "-a" "f453c1c5a98a4b002054f84607ecf023121556cf02378f25c1668c1e36c08445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f453c1c5a98a4b002054f84607ecf023121556cf02378f25c1668c1e36c08445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f453c1c5a98a4b002054f84607ecf023121556cf02378f25c1668c1e36c08445", kill_on_drop: false }`
[INFO] [stdout] f453c1c5a98a4b002054f84607ecf023121556cf02378f25c1668c1e36c08445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f3e017e348336c3fe4d68800bb8c44ec7b3c736880638cf9d0492d37e39254c
[INFO] running `Command { std: "docker" "start" "-a" "5f3e017e348336c3fe4d68800bb8c44ec7b3c736880638cf9d0492d37e39254c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling droll_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: requires `start` lang_item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `droll_os` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f3e017e348336c3fe4d68800bb8c44ec7b3c736880638cf9d0492d37e39254c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3e017e348336c3fe4d68800bb8c44ec7b3c736880638cf9d0492d37e39254c", kill_on_drop: false }`
[INFO] [stdout] 5f3e017e348336c3fe4d68800bb8c44ec7b3c736880638cf9d0492d37e39254c