[INFO] cloning repository https://github.com/codingbot24-s/webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codingbot24-s/webserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodingbot24-s%2Fwebserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodingbot24-s%2Fwebserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f7024f4f5563048ddebe5ce0414e9aec3a66e36
[INFO] checking codingbot24-s/webserver against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodingbot24-s%2Fwebserver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codingbot24-s/webserver
[INFO] finished tweaking git repo https://github.com/codingbot24-s/webserver
[INFO] tweaked toml for git repo https://github.com/codingbot24-s/webserver written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codingbot24-s/webserver on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codingbot24-s/webserver 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" "+94e848735e78b58442e0b82e9c60f8f430840389" "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 codingbot24-s/webserver against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodingbot24-s%2Fwebserver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codingbot24-s/webserver
[INFO] finished tweaking git repo https://github.com/codingbot24-s/webserver
[INFO] tweaked toml for git repo https://github.com/codingbot24-s/webserver written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codingbot24-s/webserver on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codingbot24-s/webserver 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" "+94e848735e78b58442e0b82e9c60f8f430840389" "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-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d077e914323194e8de433e7bc828247c38e623f2c80051195f7b15e4570f9a2
[INFO] running `Command { std: "docker" "start" "-a" "1d077e914323194e8de433e7bc828247c38e623f2c80051195f7b15e4570f9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d077e914323194e8de433e7bc828247c38e623f2c80051195f7b15e4570f9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d077e914323194e8de433e7bc828247c38e623f2c80051195f7b15e4570f9a2", kill_on_drop: false }`
[INFO] [stdout] 1d077e914323194e8de433e7bc828247c38e623f2c80051195f7b15e4570f9a2
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b650643f59d73c6c0563d84a408f037e53fdd5c4ced2a3ebfbc52b1c8d4544c3
[INFO] running `Command { std: "docker" "start" "-a" "b650643f59d73c6c0563d84a408f037e53fdd5c4ced2a3ebfbc52b1c8d4544c3", kill_on_drop: false }`
[INFO] [stderr]     Checking webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 14 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 15 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 14 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 15 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "b650643f59d73c6c0563d84a408f037e53fdd5c4ced2a3ebfbc52b1c8d4544c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b650643f59d73c6c0563d84a408f037e53fdd5c4ced2a3ebfbc52b1c8d4544c3", kill_on_drop: false }`
[INFO] [stdout] b650643f59d73c6c0563d84a408f037e53fdd5c4ced2a3ebfbc52b1c8d4544c3