[INFO] cloning repository https://github.com/kintrix007/rust-hashmap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kintrix007/rust-hashmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkintrix007%2Frust-hashmap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkintrix007%2Frust-hashmap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13422ec30d8e1b714fb6e8d3e9a2ea1159394b9c
[INFO] checking kintrix007/rust-hashmap against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkintrix007%2Frust-hashmap" "/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/kintrix007/rust-hashmap on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kintrix007/rust-hashmap
[INFO] finished tweaking git repo https://github.com/kintrix007/rust-hashmap
[INFO] tweaked toml for git repo https://github.com/kintrix007/rust-hashmap written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kintrix007/rust-hashmap 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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 kintrix007/rust-hashmap against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkintrix007%2Frust-hashmap" "/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/kintrix007/rust-hashmap on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kintrix007/rust-hashmap
[INFO] finished tweaking git repo https://github.com/kintrix007/rust-hashmap
[INFO] tweaked toml for git repo https://github.com/kintrix007/rust-hashmap written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kintrix007/rust-hashmap 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" "+09bc67b9158392361780e779d32997f14cc75c39" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a54f8cd195efee6f1bf7745019b8e4da22951772f59d9620c31df6c6b907a240
[INFO] running `Command { std: "docker" "start" "-a" "a54f8cd195efee6f1bf7745019b8e4da22951772f59d9620c31df6c6b907a240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a54f8cd195efee6f1bf7745019b8e4da22951772f59d9620c31df6c6b907a240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a54f8cd195efee6f1bf7745019b8e4da22951772f59d9620c31df6c6b907a240", kill_on_drop: false }`
[INFO] [stdout] a54f8cd195efee6f1bf7745019b8e4da22951772f59d9620c31df6c6b907a240
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23a47ff25b9b3974dc5c8637806a7c84f6179ac670e8e45d1d561f3dbe8d0335
[INFO] running `Command { std: "docker" "start" "-a" "23a47ff25b9b3974dc5c8637806a7c84f6179ac670e8e45d1d561f3dbe8d0335", kill_on_drop: false }`
[INFO] [stderr]     Checking hashmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/hashmap.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<K, V> HashMap<K, V> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_mut` and `rehash` are never used
[INFO] [stdout]    --> src/hashmap.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 96  | impl<K: PartialEq + Hash + Clone, V: Clone> HashMap<K, V> {
[INFO] [stdout]     | --------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn get_mut(&mut self, key: &K) -> Option<&mut V> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     pub fn rehash(&mut self, _hasher: DefaultHasher) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "23a47ff25b9b3974dc5c8637806a7c84f6179ac670e8e45d1d561f3dbe8d0335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a47ff25b9b3974dc5c8637806a7c84f6179ac670e8e45d1d561f3dbe8d0335", kill_on_drop: false }`
[INFO] [stdout] 23a47ff25b9b3974dc5c8637806a7c84f6179ac670e8e45d1d561f3dbe8d0335
