[INFO] cloning repository https://github.com/dmontagu/scrabble-core
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmontagu/scrabble-core" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmontagu%2Fscrabble-core", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmontagu%2Fscrabble-core'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92ce643754f90ebb9bbb3744aee4b01d36939bd9
[INFO] checking dmontagu/scrabble-core against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmontagu%2Fscrabble-core" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/dmontagu/scrabble-core
[INFO] finished tweaking git repo https://github.com/dmontagu/scrabble-core
[INFO] tweaked toml for git repo https://github.com/dmontagu/scrabble-core written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dmontagu/scrabble-core on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dmontagu/scrabble-core 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b946605333b6185408cd6b0e371a85e904a24c599d4fe4a8eef36e12db454fd
[INFO] running `Command { std: "docker" "start" "-a" "5b946605333b6185408cd6b0e371a85e904a24c599d4fe4a8eef36e12db454fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b946605333b6185408cd6b0e371a85e904a24c599d4fe4a8eef36e12db454fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b946605333b6185408cd6b0e371a85e904a24c599d4fe4a8eef36e12db454fd", kill_on_drop: false }`
[INFO] [stdout] 5b946605333b6185408cd6b0e371a85e904a24c599d4fe4a8eef36e12db454fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a6ede615aec2a232202c13e37167fc6a8e3c263725af082158bbac354d99e70
[INFO] running `Command { std: "docker" "start" "-a" "4a6ede615aec2a232202c13e37167fc6a8e3c263725af082158bbac354d99e70", kill_on_drop: false }`
[INFO] [stderr]     Checking scrabble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CheckedBoardSquare`
[INFO] [stdout]  --> src/game/mod.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::game::checked_square::{CheckedAisleSquare, CheckedBoardSquare};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CheckedBoardSquare`
[INFO] [stdout]  --> src/game/mod.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::game::checked_square::{CheckedAisleSquare, CheckedBoardSquare};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "4a6ede615aec2a232202c13e37167fc6a8e3c263725af082158bbac354d99e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6ede615aec2a232202c13e37167fc6a8e3c263725af082158bbac354d99e70", kill_on_drop: false }`
[INFO] [stdout] 4a6ede615aec2a232202c13e37167fc6a8e3c263725af082158bbac354d99e70