[INFO] cloning repository https://github.com/diogofriggo/polygon-clipping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diogofriggo/polygon-clipping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiogofriggo%2Fpolygon-clipping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiogofriggo%2Fpolygon-clipping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4515b873a2c886c5a3d8cbdc94a59e771294ea3
[INFO] checking diogofriggo/polygon-clipping/d4515b873a2c886c5a3d8cbdc94a59e771294ea3 against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiogofriggo%2Fpolygon-clipping" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diogofriggo/polygon-clipping on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/diogofriggo/polygon-clipping
[INFO] finished tweaking git repo https://github.com/diogofriggo/polygon-clipping
[INFO] tweaked toml for git repo https://github.com/diogofriggo/polygon-clipping written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/diogofriggo/polygon-clipping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking diogofriggo/polygon-clipping/d4515b873a2c886c5a3d8cbdc94a59e771294ea3 against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiogofriggo%2Fpolygon-clipping" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diogofriggo/polygon-clipping on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/diogofriggo/polygon-clipping
[INFO] finished tweaking git repo https://github.com/diogofriggo/polygon-clipping
[INFO] tweaked toml for git repo https://github.com/diogofriggo/polygon-clipping written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/diogofriggo/polygon-clipping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded two-lock-queue v0.1.1
[INFO] [stderr]   Downloaded thread-pool v0.1.1
[INFO] [stderr]   Downloaded rustvision v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12728ab9c611763e1349d226b4ac9955e99cb21391012ab0e22a6f322f8f9af9
[INFO] running `Command { std: "docker" "start" "-a" "12728ab9c611763e1349d226b4ac9955e99cb21391012ab0e22a6f322f8f9af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12728ab9c611763e1349d226b4ac9955e99cb21391012ab0e22a6f322f8f9af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12728ab9c611763e1349d226b4ac9955e99cb21391012ab0e22a6f322f8f9af9", kill_on_drop: false }`
[INFO] [stdout] 12728ab9c611763e1349d226b4ac9955e99cb21391012ab0e22a6f322f8f9af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bc0a35f844a8c7908937d742ee16cff0901bc5f45ffe46b30eda989f998109c
[INFO] running `Command { std: "docker" "start" "-a" "7bc0a35f844a8c7908937d742ee16cff0901bc5f45ffe46b30eda989f998109c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking two-lock-queue v0.1.1
[INFO] [stderr]     Checking rustvision v0.1.1
[INFO] [stderr]     Checking thread-pool v0.1.1
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking polygon_clipping v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `core_count`
[INFO] [stdout]   --> src/clip.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let core_count = num_cpus::get();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_core_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `core_count`
[INFO] [stdout]   --> src/clip.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let core_count = num_cpus::get();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_core_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "7bc0a35f844a8c7908937d742ee16cff0901bc5f45ffe46b30eda989f998109c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc0a35f844a8c7908937d742ee16cff0901bc5f45ffe46b30eda989f998109c", kill_on_drop: false }`
[INFO] [stdout] 7bc0a35f844a8c7908937d742ee16cff0901bc5f45ffe46b30eda989f998109c