[INFO] cloning repository https://github.com/codebyred/rust_basic_web_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codebyred/rust_basic_web_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebyred%2Frust_basic_web_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebyred%2Frust_basic_web_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bf02086eea159274a20228892002296d5dcc333
[INFO] checking codebyred/rust_basic_web_server against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebyred%2Frust_basic_web_server" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codebyred/rust_basic_web_server on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codebyred/rust_basic_web_server
[INFO] finished tweaking git repo https://github.com/codebyred/rust_basic_web_server
[INFO] tweaked toml for git repo https://github.com/codebyred/rust_basic_web_server written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/codebyred/rust_basic_web_server 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5880a1f97ee338994a8bd4ab765029a499ec26127ef4d736c3d4bc9c8a288763
[INFO] running `Command { std: "docker" "start" "-a" "5880a1f97ee338994a8bd4ab765029a499ec26127ef4d736c3d4bc9c8a288763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5880a1f97ee338994a8bd4ab765029a499ec26127ef4d736c3d4bc9c8a288763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5880a1f97ee338994a8bd4ab765029a499ec26127ef4d736c3d4bc9c8a288763", kill_on_drop: false }`
[INFO] [stdout] 5880a1f97ee338994a8bd4ab765029a499ec26127ef4d736c3d4bc9c8a288763
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74c68435d728501f98a2956a08ab836c7d6aeb460cb80a305a1f2a4caa3f8526
[INFO] running `Command { std: "docker" "start" "-a" "74c68435d728501f98a2956a08ab836c7d6aeb460cb80a305a1f2a4caa3f8526", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_basic_web_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id` and `handler` are never read
[INFO] [stdout]   --> src/threadpool.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 20 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 21 |     handler: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Worker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `handler` are never read
[INFO] [stdout]   --> src/threadpool.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 20 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 21 |     handler: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Worker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threadpool.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct ThreadPool{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 45 |     threads: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> src/threadpool.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct ThreadPool{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 45 |     threads: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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" "74c68435d728501f98a2956a08ab836c7d6aeb460cb80a305a1f2a4caa3f8526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c68435d728501f98a2956a08ab836c7d6aeb460cb80a305a1f2a4caa3f8526", kill_on_drop: false }`
[INFO] [stdout] 74c68435d728501f98a2956a08ab836c7d6aeb460cb80a305a1f2a4caa3f8526