[INFO] cloning repository https://github.com/kallehed/BinaryHeap-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kallehed/BinaryHeap-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2FBinaryHeap-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2FBinaryHeap-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52b3b0c56b5e267a766b2d380feaa92bba0d96a8
[INFO] checking kallehed/BinaryHeap-Rust against master#83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5 for pr-128425
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2FBinaryHeap-Rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kallehed/BinaryHeap-Rust on toolchain 83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] finished tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] tweaked toml for git repo https://github.com/kallehed/BinaryHeap-Rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kallehed/BinaryHeap-Rust 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" "+83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking kallehed/BinaryHeap-Rust against try#063c08dd8db6ff113bb809c130456f1781abe72c for pr-128425
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2FBinaryHeap-Rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kallehed/BinaryHeap-Rust on toolchain 063c08dd8db6ff113bb809c130456f1781abe72c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] finished tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] tweaked toml for git repo https://github.com/kallehed/BinaryHeap-Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kallehed/BinaryHeap-Rust 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" "+063c08dd8db6ff113bb809c130456f1781abe72c" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking kallehed/BinaryHeap-Rust against try#063c08dd8db6ff113bb809c130456f1781abe72c for pr-128425
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2FBinaryHeap-Rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kallehed/BinaryHeap-Rust on toolchain 063c08dd8db6ff113bb809c130456f1781abe72c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] finished tweaking git repo https://github.com/kallehed/BinaryHeap-Rust
[INFO] tweaked toml for git repo https://github.com/kallehed/BinaryHeap-Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kallehed/BinaryHeap-Rust 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" "+063c08dd8db6ff113bb809c130456f1781abe72c" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31c86549ab7c71bdae854650adc45276a3fb536a9e41b443cb8094417f0d9920
[INFO] running `Command { std: "docker" "start" "-a" "31c86549ab7c71bdae854650adc45276a3fb536a9e41b443cb8094417f0d9920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31c86549ab7c71bdae854650adc45276a3fb536a9e41b443cb8094417f0d9920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c86549ab7c71bdae854650adc45276a3fb536a9e41b443cb8094417f0d9920", kill_on_drop: false }`
[INFO] [stdout] 31c86549ab7c71bdae854650adc45276a3fb536a9e41b443cb8094417f0d9920
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d7ac1fed337db85feb1a9468d112a2970519991641571b9d3af5dd61a512504
[INFO] running `Command { std: "docker" "start" "-a" "2d7ac1fed337db85feb1a9468d112a2970519991641571b9d3af5dd61a512504", kill_on_drop: false }`
[INFO] [stderr]     Checking binaryheap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `flow_down_rec` is never used
[INFO] [stdout]   --> src/lib.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<T: PartialOrd> BinaryHeap<T> {
[INFO] [stdout]    | --------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn flow_down_rec(&mut self, idx: usize, vec_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flow_down_rec` is never used
[INFO] [stdout]   --> src/lib.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<T: PartialOrd> BinaryHeap<T> {
[INFO] [stdout]    | --------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn flow_down_rec(&mut self, idx: usize, vec_len: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "2d7ac1fed337db85feb1a9468d112a2970519991641571b9d3af5dd61a512504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7ac1fed337db85feb1a9468d112a2970519991641571b9d3af5dd61a512504", kill_on_drop: false }`
[INFO] [stdout] 2d7ac1fed337db85feb1a9468d112a2970519991641571b9d3af5dd61a512504