[INFO] cloning repository https://github.com/RattyGirl/math_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RattyGirl/math_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRattyGirl%2Fmath_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRattyGirl%2Fmath_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 974686e6624417e68fa67f46e271880a7a4355d3
[INFO] checking RattyGirl/math_lib against master#df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e for pr-95474
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRattyGirl%2Fmath_lib" "/workspace/builds/worker-85/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RattyGirl/math_lib on toolchain df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RattyGirl/math_lib
[INFO] finished tweaking git repo https://github.com/RattyGirl/math_lib
[INFO] tweaked toml for git repo https://github.com/RattyGirl/math_lib written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] crate git repo https://github.com/RattyGirl/math_lib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "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-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5b3e3d94013f75b5650bc84b70e78a838a95dfd19b4d873411380b6820facda
[INFO] running `Command { std: "docker" "start" "-a" "d5b3e3d94013f75b5650bc84b70e78a838a95dfd19b4d873411380b6820facda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5b3e3d94013f75b5650bc84b70e78a838a95dfd19b4d873411380b6820facda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b3e3d94013f75b5650bc84b70e78a838a95dfd19b4d873411380b6820facda", kill_on_drop: false }`
[INFO] [stdout] d5b3e3d94013f75b5650bc84b70e78a838a95dfd19b4d873411380b6820facda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e31e4b4bdef52b626bef7d134ac0b4c09d6bc0f01751d85d4522bdcee1f6609a
[INFO] running `Command { std: "docker" "start" "-a" "e31e4b4bdef52b626bef7d134ac0b4c09d6bc0f01751d85d4522bdcee1f6609a", 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" "e31e4b4bdef52b626bef7d134ac0b4c09d6bc0f01751d85d4522bdcee1f6609a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31e4b4bdef52b626bef7d134ac0b4c09d6bc0f01751d85d4522bdcee1f6609a", kill_on_drop: false }`
[INFO] [stdout] e31e4b4bdef52b626bef7d134ac0b4c09d6bc0f01751d85d4522bdcee1f6609a