[INFO] cloning repository https://github.com/sjinno/ikkyu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjinno/ikkyu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjinno%2Fikkyu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjinno%2Fikkyu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4483e5e9c9cc341be2284cf688c687e816b30cb
[INFO] checking sjinno/ikkyu against master#52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6 for pr-127907
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjinno%2Fikkyu" "/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/sjinno/ikkyu on toolchain 52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sjinno/ikkyu
[INFO] finished tweaking git repo https://github.com/sjinno/ikkyu
[INFO] tweaked toml for git repo https://github.com/sjinno/ikkyu written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sjinno/ikkyu 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" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "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-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ea0dfd9398d586e0ba9d6b81968238a38ac8db34829c23c4e43f2a4ba9d9844
[INFO] running `Command { std: "docker" "start" "-a" "7ea0dfd9398d586e0ba9d6b81968238a38ac8db34829c23c4e43f2a4ba9d9844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea0dfd9398d586e0ba9d6b81968238a38ac8db34829c23c4e43f2a4ba9d9844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea0dfd9398d586e0ba9d6b81968238a38ac8db34829c23c4e43f2a4ba9d9844", kill_on_drop: false }`
[INFO] [stdout] 7ea0dfd9398d586e0ba9d6b81968238a38ac8db34829c23c4e43f2a4ba9d9844
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9231bcb01870bc47dbc9fa61606f4bd2f3a085cd7acce470e9b6eadd739e369d
[INFO] running `Command { std: "docker" "start" "-a" "9231bcb01870bc47dbc9fa61606f4bd2f3a085cd7acce470e9b6eadd739e369d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking text-colorizer v1.0.0
[INFO] [stderr]     Checking ikkyu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `board` is never read
[INFO] [stdout]   --> src/game.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct GameBuilder {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 18 |     pub board: Board,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `board` is never read
[INFO] [stdout]   --> src/game.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct GameBuilder {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 18 |     pub board: Board,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "9231bcb01870bc47dbc9fa61606f4bd2f3a085cd7acce470e9b6eadd739e369d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9231bcb01870bc47dbc9fa61606f4bd2f3a085cd7acce470e9b6eadd739e369d", kill_on_drop: false }`
[INFO] [stdout] 9231bcb01870bc47dbc9fa61606f4bd2f3a085cd7acce470e9b6eadd739e369d