[INFO] cloning repository https://github.com/DidimoPaez/threadpool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DidimoPaez/threadpool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDidimoPaez%2Fthreadpool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDidimoPaez%2Fthreadpool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dceff2987cdffb13a246a91263238eb4f5e537ab
[INFO] checking DidimoPaez/threadpool against ba28ff76f353a722f31c4f3dd2ac4e437d36411b for pr-160780
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDidimoPaez%2Fthreadpool" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DidimoPaez/threadpool
[INFO] finished tweaking git repo https://github.com/DidimoPaez/threadpool
[INFO] tweaked toml for git repo https://github.com/DidimoPaez/threadpool written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DidimoPaez/threadpool on toolchain ba28ff76f353a722f31c4f3dd2ac4e437d36411b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DidimoPaez/threadpool 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" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "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-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99
[INFO] running `Command { std: "docker" "start" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking servidor_http_threadpool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Sender`
[INFO] [stdout]  --> src/lib.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]   |                                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sender`
[INFO] [stdout]  --> src/lib.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]   |                                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (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:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Worker {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 8 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 9 |     thread: thread::JoinHandle<Arc<Mutex<Receiver<Job>>>>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 31 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Worker {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 8 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 9 |     thread: thread::JoinHandle<Arc<Mutex<Receiver<Job>>>>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 31 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::Thread`
[INFO] [stdout]  --> src/bin/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::Thread;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:52:33
[INFO] [stdout]    |
[INFO] [stdout] 52 |     println!("{:?}", response); /// //
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout] 53 |     stream.write(response.as_bytes()).unwrap();
[INFO] [stdout]    |     ------------------------------------------ rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::Thread`
[INFO] [stdout]  --> src/bin/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::Thread;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:52:33
[INFO] [stdout]    |
[INFO] [stdout] 52 |     println!("{:?}", response); /// //
[INFO] [stdout]    |                                 ^^^^^^
[INFO] [stdout] 53 |     stream.write(response.as_bytes()).unwrap();
[INFO] [stdout]    |     ------------------------------------------ rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99", kill_on_drop: false }`
[INFO] [stdout] 5a5bc46a2f81fa859d27d051c922a44522c3cc189ed738db0557d28d7663ec99