[INFO] cloning repository https://github.com/gab3-dev/concepts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gab3-dev/concepts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgab3-dev%2Fconcepts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgab3-dev%2Fconcepts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf2db4e3ac15593faf875e763c5591aec55dea57
[INFO] checking gab3-dev/concepts against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgab3-dev%2Fconcepts" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gab3-dev/concepts on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gab3-dev/concepts
[INFO] finished tweaking git repo https://github.com/gab3-dev/concepts
[INFO] tweaked toml for git repo https://github.com/gab3-dev/concepts written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gab3-dev/concepts 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" "+1bd50d4315eb15970d395b6be5823f9384707693" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking gab3-dev/concepts against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgab3-dev%2Fconcepts" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gab3-dev/concepts on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gab3-dev/concepts
[INFO] finished tweaking git repo https://github.com/gab3-dev/concepts
[INFO] tweaked toml for git repo https://github.com/gab3-dev/concepts written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gab3-dev/concepts 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" "+1bd50d4315eb15970d395b6be5823f9384707693" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 898186a8240644b3cab525beb9c5713d2ba39bfe4643653b4dd80c52feaa1805
[INFO] running `Command { std: "docker" "start" "-a" "898186a8240644b3cab525beb9c5713d2ba39bfe4643653b4dd80c52feaa1805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "898186a8240644b3cab525beb9c5713d2ba39bfe4643653b4dd80c52feaa1805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898186a8240644b3cab525beb9c5713d2ba39bfe4643653b4dd80c52feaa1805", kill_on_drop: false }`
[INFO] [stdout] 898186a8240644b3cab525beb9c5713d2ba39bfe4643653b4dd80c52feaa1805
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 443d4f493a3f652e2dc8f460ab6ae9fe59703ca6a0f752f9eb6fa18f103ba2e2
[INFO] running `Command { std: "docker" "start" "-a" "443d4f493a3f652e2dc8f460ab6ae9fe59703ca6a0f752f9eb6fa18f103ba2e2", kill_on_drop: false }`
[INFO] [stderr]     Checking concepts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `price` and `grade` are never read
[INFO] [stdout]  --> src/game.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Game {
[INFO] [stdout]   |                ---- fields in this struct
[INFO] [stdout] 3 |         pub name: String,
[INFO] [stdout] 4 |         pub price: f64,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 5 |         pub grade: i32,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `price` and `grade` are never read
[INFO] [stdout]  --> src/game.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Game {
[INFO] [stdout]   |                ---- fields in this struct
[INFO] [stdout] 3 |         pub name: String,
[INFO] [stdout] 4 |         pub price: f64,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 5 |         pub grade: i32,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "443d4f493a3f652e2dc8f460ab6ae9fe59703ca6a0f752f9eb6fa18f103ba2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443d4f493a3f652e2dc8f460ab6ae9fe59703ca6a0f752f9eb6fa18f103ba2e2", kill_on_drop: false }`
[INFO] [stdout] 443d4f493a3f652e2dc8f460ab6ae9fe59703ca6a0f752f9eb6fa18f103ba2e2