[INFO] cloning repository https://github.com/dpfla/Rust-Basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpfla/Rust-Basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpfla%2FRust-Basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpfla%2FRust-Basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2bd1ff677f618d7c5765d31438b4efcbefd3af7
[INFO] checking dpfla/Rust-Basic/e2bd1ff677f618d7c5765d31438b4efcbefd3af7 against try#0d69e2d38d443a5f5bcd601fecce9431b3835c30 for pr-130531
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpfla%2FRust-Basic" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpfla/Rust-Basic on toolchain 0d69e2d38d443a5f5bcd601fecce9431b3835c30
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dpfla/Rust-Basic
[INFO] finished tweaking git repo https://github.com/dpfla/Rust-Basic
[INFO] tweaked toml for git repo https://github.com/dpfla/Rust-Basic written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dpfla/Rust-Basic 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" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "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 dpfla/Rust-Basic/e2bd1ff677f618d7c5765d31438b4efcbefd3af7 against try#0d69e2d38d443a5f5bcd601fecce9431b3835c30 for pr-130531
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpfla%2FRust-Basic" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpfla/Rust-Basic on toolchain 0d69e2d38d443a5f5bcd601fecce9431b3835c30
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dpfla/Rust-Basic
[INFO] finished tweaking git repo https://github.com/dpfla/Rust-Basic
[INFO] tweaked toml for git repo https://github.com/dpfla/Rust-Basic written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dpfla/Rust-Basic 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" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f92be02d494adaca555085e83f0ea3c1ac31ad58948c6e66d76bed7dd7d1ada
[INFO] running `Command { std: "docker" "start" "-a" "0f92be02d494adaca555085e83f0ea3c1ac31ad58948c6e66d76bed7dd7d1ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f92be02d494adaca555085e83f0ea3c1ac31ad58948c6e66d76bed7dd7d1ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f92be02d494adaca555085e83f0ea3c1ac31ad58948c6e66d76bed7dd7d1ada", kill_on_drop: false }`
[INFO] [stdout] 0f92be02d494adaca555085e83f0ea3c1ac31ad58948c6e66d76bed7dd7d1ada
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba4d574d03a2e6cde86a5af74c8312ee374845d58ddbf4b4dab1b247e3977290
[INFO] running `Command { std: "docker" "start" "-a" "ba4d574d03a2e6cde86a5af74c8312ee374845d58ddbf4b4dab1b247e3977290", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 62 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 63 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 62 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 63 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "ba4d574d03a2e6cde86a5af74c8312ee374845d58ddbf4b4dab1b247e3977290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba4d574d03a2e6cde86a5af74c8312ee374845d58ddbf4b4dab1b247e3977290", kill_on_drop: false }`
[INFO] [stdout] ba4d574d03a2e6cde86a5af74c8312ee374845d58ddbf4b4dab1b247e3977290