[INFO] updating cached repository sdbondi/rust-sudoku-solver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/sdbondi/rust-sudoku-solver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/sdbondi/rust-sudoku-solver" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sdbondi/rust-sudoku-solver"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sdbondi/rust-sudoku-solver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/sdbondi/rust-sudoku-solver" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sdbondi/rust-sudoku-solver"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sdbondi/rust-sudoku-solver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ed82543988f6c485955e2a7ae6c503bbcefd6b7a [INFO] sha for GitHub repo sdbondi/rust-sudoku-solver: ed82543988f6c485955e2a7ae6c503bbcefd6b7a [INFO] validating manifest of sdbondi/rust-sudoku-solver on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of sdbondi/rust-sudoku-solver on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing sdbondi/rust-sudoku-solver [INFO] finished frobbing sdbondi/rust-sudoku-solver [INFO] frobbed toml for sdbondi/rust-sudoku-solver written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sdbondi/rust-sudoku-solver/Cargo.toml [INFO] started frobbing sdbondi/rust-sudoku-solver [INFO] finished frobbing sdbondi/rust-sudoku-solver [INFO] frobbed toml for sdbondi/rust-sudoku-solver written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sdbondi/rust-sudoku-solver/Cargo.toml [INFO] crate sdbondi/rust-sudoku-solver already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking sdbondi/rust-sudoku-solver against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sdbondi/rust-sudoku-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 025918945aa178551e5bae80fdfbb744bdd41650f052da25df99d4d5ea5d0c9d [INFO] running `"docker" "start" "-a" "025918945aa178551e5bae80fdfbb744bdd41650f052da25df99d4d5ea5d0c9d"` [INFO] [stderr] Compiling x11-dl v2.18.1 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling syn v0.14.5 [INFO] [stderr] Checking gfx_core v0.8.2 [INFO] [stderr] Checking wayland-sys v0.12.5 [INFO] [stderr] Compiling gfx_gl v0.5.0 [INFO] [stderr] Checking ordered-float v0.5.0 [INFO] [stderr] Compiling glutin v0.14.0 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking rusttype v0.4.3 [INFO] [stderr] Checking wayland-client v0.12.5 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking piston2d-graphics v0.26.0 [INFO] [stderr] Checking rayon-core v1.4.1 [INFO] [stderr] Checking rayon v1.0.2 [INFO] [stderr] Checking wayland-protocols v0.12.5 [INFO] [stderr] Checking wayland-kbd v0.13.1 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Compiling serde_derive v1.0.70 [INFO] [stderr] Compiling num-derive v0.2.2 [INFO] [stderr] Checking wayland-window v0.13.3 [INFO] [stderr] Checking winit v0.12.0 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking piston2d-opengl_graphics v0.53.0 [INFO] [stderr] Checking pistoncore-input v0.21.0 [INFO] [stderr] Checking pistoncore-window v0.32.0 [INFO] [stderr] Checking pistoncore-event_loop v0.37.0 [INFO] [stderr] Checking pistoncore-glutin_window v0.47.0 [INFO] [stderr] Checking pistoncore-sdl2_window v0.50.0 [INFO] [stderr] Checking piston v0.37.0 [INFO] [stderr] Checking gfx v0.17.1 [INFO] [stderr] Checking gfx_device_gl v0.15.3 [INFO] [stderr] Checking piston-gfx_texture v0.32.0 [INFO] [stderr] Checking piston2d-gfx_graphics v0.51.0 [INFO] [stderr] Checking piston_window v0.80.0 [INFO] [stderr] Checking sudoku-solver v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `piston::event_loop::*` [INFO] [stderr] --> src/cell.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use piston::event_loop::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `piston::event_loop::*` [INFO] [stderr] --> src/cell.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use piston::event_loop::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `board` [INFO] [stderr] --> src/board.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | board: [[u8; BOARD_SIZE]; BOARD_SIZE], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Selected` [INFO] [stderr] --> src/cell.rs:12:3 [INFO] [stderr] | [INFO] [stderr] 12 | Selected, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `number` [INFO] [stderr] --> src/cell.rs:21:3 [INFO] [stderr] | [INFO] [stderr] 21 | number: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `board` [INFO] [stderr] --> src/board.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | board: [[u8; BOARD_SIZE]; BOARD_SIZE], [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Selected` [INFO] [stderr] --> src/cell.rs:12:3 [INFO] [stderr] | [INFO] [stderr] 12 | Selected, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `number` [INFO] [stderr] --> src/cell.rs:21:3 [INFO] [stderr] | [INFO] [stderr] 21 | number: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 06s [INFO] running `"docker" "inspect" "025918945aa178551e5bae80fdfbb744bdd41650f052da25df99d4d5ea5d0c9d"` [INFO] running `"docker" "rm" "-f" "025918945aa178551e5bae80fdfbb744bdd41650f052da25df99d4d5ea5d0c9d"` [INFO] [stdout] 025918945aa178551e5bae80fdfbb744bdd41650f052da25df99d4d5ea5d0c9d