[INFO] cloning repository https://github.com/strohs/rust-minesweeper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/strohs/rust-minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrohs%2Frust-minesweeper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrohs%2Frust-minesweeper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 82ffbbd887cd843174b2a7b29f5828839eeed39c [INFO] checking strohs/rust-minesweeper against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrohs%2Frust-minesweeper" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/strohs/rust-minesweeper on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/strohs/rust-minesweeper [INFO] finished tweaking git repo https://github.com/strohs/rust-minesweeper [INFO] tweaked toml for git repo https://github.com/strohs/rust-minesweeper written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/strohs/rust-minesweeper already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 171f335c7a5f2f3ee273d761a9d362388ac455620da2e3c417cb5f661aad4a86 [INFO] running `Command { std: "docker" "start" "-a" "171f335c7a5f2f3ee273d761a9d362388ac455620da2e3c417cb5f661aad4a86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "171f335c7a5f2f3ee273d761a9d362388ac455620da2e3c417cb5f661aad4a86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "171f335c7a5f2f3ee273d761a9d362388ac455620da2e3c417cb5f661aad4a86", kill_on_drop: false }` [INFO] [stdout] 171f335c7a5f2f3ee273d761a9d362388ac455620da2e3c417cb5f661aad4a86 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 02c64024c070b6e1da84aed4d34fef276c5a3cff2fd3d2306afed18ffa7369e4 [INFO] running `Command { std: "docker" "start" "-a" "02c64024c070b6e1da84aed4d34fef276c5a3cff2fd3d2306afed18ffa7369e4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Compiling rand_chacha v0.2.0 [INFO] [stderr] Checking getrandom v0.1.6 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking rust-minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::game_cell::CellKind::Empty` [INFO] [stdout] --> src/game_cell.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | use crate::game_cell::CellKind::Empty; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `elapsed_time` [INFO] [stdout] --> src/minesweeper.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | elapsed_time: u64, [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 is never read: `elapsed_time` [INFO] [stdout] --> src/minesweeper.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | elapsed_time: u64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.45s [INFO] running `Command { std: "docker" "inspect" "02c64024c070b6e1da84aed4d34fef276c5a3cff2fd3d2306afed18ffa7369e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02c64024c070b6e1da84aed4d34fef276c5a3cff2fd3d2306afed18ffa7369e4", kill_on_drop: false }` [INFO] [stdout] 02c64024c070b6e1da84aed4d34fef276c5a3cff2fd3d2306afed18ffa7369e4