[INFO] cloning repository https://github.com/nsrnannaisha/module6-advprog25
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nsrnannaisha/module6-advprog25" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsrnannaisha%2Fmodule6-advprog25", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsrnannaisha%2Fmodule6-advprog25'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 752a93189bbb1cf667ebe089576be31ec02792bf
[INFO] checking nsrnannaisha/module6-advprog25 against try#969026c535f4240ff7866ef11207dfda18a26af6 for pr-146504
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsrnannaisha%2Fmodule6-advprog25" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nsrnannaisha/module6-advprog25
[INFO] finished tweaking git repo https://github.com/nsrnannaisha/module6-advprog25
[INFO] tweaked toml for git repo https://github.com/nsrnannaisha/module6-advprog25 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nsrnannaisha/module6-advprog25 on toolchain 969026c535f4240ff7866ef11207dfda18a26af6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+969026c535f4240ff7866ef11207dfda18a26af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nsrnannaisha/module6-advprog25 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" "+969026c535f4240ff7866ef11207dfda18a26af6" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+969026c535f4240ff7866ef11207dfda18a26af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3019629de917040db9d6adff42d8250cfb4e0c4e353907869b87762036db0fc7
[INFO] running `Command { std: "docker" "start" "-a" "3019629de917040db9d6adff42d8250cfb4e0c4e353907869b87762036db0fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3019629de917040db9d6adff42d8250cfb4e0c4e353907869b87762036db0fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3019629de917040db9d6adff42d8250cfb4e0c4e353907869b87762036db0fc7", kill_on_drop: false }`
[INFO] [stdout] 3019629de917040db9d6adff42d8250cfb4e0c4e353907869b87762036db0fc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+969026c535f4240ff7866ef11207dfda18a26af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31db1ec6d6a844c0448320387d988fda73a7bc11ad7b32989e59a19c680f02aa
[INFO] running `Command { std: "docker" "start" "-a" "31db1ec6d6a844c0448320387d988fda73a7bc11ad7b32989e59a19c680f02aa", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:7:2
[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/lib.rs:55:2
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 55 |  id: usize,
[INFO] [stdout]    |  ^^
[INFO] [stdout] 56 |  thread: thread::JoinHandle<()>,
[INFO] [stdout]    |  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:7:2
[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/lib.rs:55:2
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 55 |  id: usize,
[INFO] [stdout]    |  ^^
[INFO] [stdout] 56 |  thread: thread::JoinHandle<()>,
[INFO] [stdout]    |  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "31db1ec6d6a844c0448320387d988fda73a7bc11ad7b32989e59a19c680f02aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31db1ec6d6a844c0448320387d988fda73a7bc11ad7b32989e59a19c680f02aa", kill_on_drop: false }`
[INFO] [stdout] 31db1ec6d6a844c0448320387d988fda73a7bc11ad7b32989e59a19c680f02aa