[INFO] cloning repository https://github.com/bythesword/rust_thread_pool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bythesword/rust_thread_pool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbythesword%2Frust_thread_pool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbythesword%2Frust_thread_pool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7348d391348afe59a534857c34f29aa32edaac81
[INFO] checking bythesword/rust_thread_pool against master#e1613686e0efc80a1a18b1263625450a8de3fb04 for pr-154492-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbythesword%2Frust_thread_pool" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bythesword/rust_thread_pool
[INFO] finished tweaking git repo https://github.com/bythesword/rust_thread_pool
[INFO] tweaked toml for git repo https://github.com/bythesword/rust_thread_pool written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bythesword/rust_thread_pool on toolchain e1613686e0efc80a1a18b1263625450a8de3fb04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bythesword/rust_thread_pool 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" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 094243f70e208fd71febd81c3b3f0d0d9b7d8138c00155d32c047201f09eefbe
[INFO] running `Command { std: "docker" "start" "-a" "094243f70e208fd71febd81c3b3f0d0d9b7d8138c00155d32c047201f09eefbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "094243f70e208fd71febd81c3b3f0d0d9b7d8138c00155d32c047201f09eefbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094243f70e208fd71febd81c3b3f0d0d9b7d8138c00155d32c047201f09eefbe", kill_on_drop: false }`
[INFO] [stdout] 094243f70e208fd71febd81c3b3f0d0d9b7d8138c00155d32c047201f09eefbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fc6004777cc4079f1ab78120dd55e04556d5fc4d0e1d8697b61b2ae71075344
[INFO] running `Command { std: "docker" "start" "-a" "3fc6004777cc4079f1ab78120dd55e04556d5fc4d0e1d8697b61b2ae71075344", kill_on_drop: false }`
[INFO] [stderr]     Checking tom_thread_pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Sender` and `self`
[INFO] [stdout]  --> src/threadpoolmsg.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::{self, 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 imports: `Sender` and `self`
[INFO] [stdout]  --> src/threadpoolmsg.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::{self, 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: `std::time::Duration`
[INFO] [stdout]  --> src/threadpoolmsg.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/threadpoolmsg.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ThreadPool`
[INFO] [stdout]  --> src/threadpoolmsg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ThreadPool`
[INFO] [stdout]  --> src/threadpoolmsg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/threadpool.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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/threadpool.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 48 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 49 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/threadpool.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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/threadpool.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 48 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 49 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn handle_connection(i: i128) {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn handle_connection(i: i128) {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[INFO] [stdout]   --> src/main.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn handle_connection(i: i128) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[INFO] [stdout]   --> src/main.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn handle_connection(i: i128) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "3fc6004777cc4079f1ab78120dd55e04556d5fc4d0e1d8697b61b2ae71075344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fc6004777cc4079f1ab78120dd55e04556d5fc4d0e1d8697b61b2ae71075344", kill_on_drop: false }`
[INFO] [stdout] 3fc6004777cc4079f1ab78120dd55e04556d5fc4d0e1d8697b61b2ae71075344
