[INFO] cloning repository https://github.com/nikitagrgv/rustserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikitagrgv/rustserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikitagrgv%2Frustserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikitagrgv%2Frustserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5103b22403ddb22e4c2caf8ae45a78ac9e11dcb
[INFO] checking nikitagrgv/rustserver against master#fe348cd1a8e0fa445b772393147ed865904dcd4d for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikitagrgv%2Frustserver" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikitagrgv/rustserver on toolchain fe348cd1a8e0fa445b772393147ed865904dcd4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikitagrgv/rustserver
[INFO] finished tweaking git repo https://github.com/nikitagrgv/rustserver
[INFO] tweaked toml for git repo https://github.com/nikitagrgv/rustserver written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nikitagrgv/rustserver 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" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded aho-corasick v1.0.2
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.4
[INFO] [stderr]   Downloaded regex-automata v0.3.4
[INFO] [stderr]   Downloaded libc v0.2.147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf0d4b1f16b9cd4b7a49a7d99f6571e93a90ed9682d70a5c3181d7cd0303e1bd
[INFO] running `Command { std: "docker" "start" "-a" "bf0d4b1f16b9cd4b7a49a7d99f6571e93a90ed9682d70a5c3181d7cd0303e1bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf0d4b1f16b9cd4b7a49a7d99f6571e93a90ed9682d70a5c3181d7cd0303e1bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0d4b1f16b9cd4b7a49a7d99f6571e93a90ed9682d70a5c3181d7cd0303e1bd", kill_on_drop: false }`
[INFO] [stdout] bf0d4b1f16b9cd4b7a49a7d99f6571e93a90ed9682d70a5c3181d7cd0303e1bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53633e101e5caaba253bcceca51c6c57adda6e7e4b6d3a609fa55bee5167bad8
[INFO] running `Command { std: "docker" "start" "-a" "53633e101e5caaba253bcceca51c6c57adda6e7e4b6d3a609fa55bee5167bad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking regex-automata v0.3.4
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking rustserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id` and `handle` are never read
[INFO] [stdout]   --> src/thread_pool.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 19 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 20 |     handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/thread_pool.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 37 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `handle` are never read
[INFO] [stdout]   --> src/thread_pool.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 19 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 20 |     handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/thread_pool.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 37 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "53633e101e5caaba253bcceca51c6c57adda6e7e4b6d3a609fa55bee5167bad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53633e101e5caaba253bcceca51c6c57adda6e7e4b6d3a609fa55bee5167bad8", kill_on_drop: false }`
[INFO] [stdout] 53633e101e5caaba253bcceca51c6c57adda6e7e4b6d3a609fa55bee5167bad8