[INFO] updating cached repository mehrati/sudoku_solution [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mehrati/sudoku_solution [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mehrati/sudoku_solution" "work/ex/beta-1.38-1/sources/1.37.0/gh/mehrati/sudoku_solution"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mehrati/sudoku_solution'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mehrati/sudoku_solution" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] bb2eb0dcd28e23f5db86f27940fba6aaf653308a [INFO] sha for GitHub repo mehrati/sudoku_solution: bb2eb0dcd28e23f5db86f27940fba6aaf653308a [INFO] validating manifest of mehrati/sudoku_solution on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mehrati/sudoku_solution on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mehrati/sudoku_solution [INFO] finished frobbing mehrati/sudoku_solution [INFO] frobbed toml for mehrati/sudoku_solution written to work/ex/beta-1.38-1/sources/1.37.0/gh/mehrati/sudoku_solution/Cargo.toml [INFO] started frobbing mehrati/sudoku_solution [INFO] finished frobbing mehrati/sudoku_solution [INFO] frobbed toml for mehrati/sudoku_solution written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution/Cargo.toml [INFO] crate mehrati/sudoku_solution already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing mehrati/sudoku_solution against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 8edc13e5b1adf6617cf48a8260e5c74db65465ee17719300b6c2df3438625db7 [INFO] running `"docker" "start" "-a" "8edc13e5b1adf6617cf48a8260e5c74db65465ee17719300b6c2df3438625db7"` [INFO] [stderr] Compiling sudoku_solution v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: type `cell` should have an upper camel case name [INFO] [stderr] --> src/main.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | type cell = Cell; [INFO] [stderr] | ^^^^ help: convert the identifier to upper camel case: `Cell` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:111:13 [INFO] [stderr] | [INFO] [stderr] 111 | Err(e) => panic!("err"), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr` [INFO] [stderr] --> src/main.rs:117:13 [INFO] [stderr] | [INFO] [stderr] 117 | let mut arr:[[i32;9];9]= [[0;9];9]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_arr` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | let mut arr:[[i32;9];9]= [[0;9];9]; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.26s [INFO] running `"docker" "inspect" "8edc13e5b1adf6617cf48a8260e5c74db65465ee17719300b6c2df3438625db7"` [INFO] running `"docker" "rm" "-f" "8edc13e5b1adf6617cf48a8260e5c74db65465ee17719300b6c2df3438625db7"` [INFO] [stdout] 8edc13e5b1adf6617cf48a8260e5c74db65465ee17719300b6c2df3438625db7 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] 8a3c7b8bd8956a2876cde91a2a70660daaa427d733a91c200930bcc810ca42cc [INFO] running `"docker" "start" "-a" "8a3c7b8bd8956a2876cde91a2a70660daaa427d733a91c200930bcc810ca42cc"` [INFO] [stderr] Compiling sudoku_solution v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: type `cell` should have an upper camel case name [INFO] [stderr] --> src/main.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | type cell = Cell; [INFO] [stderr] | ^^^^ help: convert the identifier to upper camel case: `Cell` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:111:13 [INFO] [stderr] | [INFO] [stderr] 111 | Err(e) => panic!("err"), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr` [INFO] [stderr] --> src/main.rs:117:13 [INFO] [stderr] | [INFO] [stderr] 117 | let mut arr:[[i32;9];9]= [[0;9];9]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_arr` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | let mut arr:[[i32;9];9]= [[0;9];9]; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.89s [INFO] running `"docker" "inspect" "8a3c7b8bd8956a2876cde91a2a70660daaa427d733a91c200930bcc810ca42cc"` [INFO] running `"docker" "rm" "-f" "8a3c7b8bd8956a2876cde91a2a70660daaa427d733a91c200930bcc810ca42cc"` [INFO] [stdout] 8a3c7b8bd8956a2876cde91a2a70660daaa427d733a91c200930bcc810ca42cc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehrati/sudoku_solution:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 7d67d3149be5014407127c2d1c6d3fd4eab344a874561f7bb8eab0b65613e6ed [INFO] running `"docker" "start" "-a" "7d67d3149be5014407127c2d1c6d3fd4eab344a874561f7bb8eab0b65613e6ed"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/sudoku_solution-076ad926030604f2 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "7d67d3149be5014407127c2d1c6d3fd4eab344a874561f7bb8eab0b65613e6ed"` [INFO] running `"docker" "rm" "-f" "7d67d3149be5014407127c2d1c6d3fd4eab344a874561f7bb8eab0b65613e6ed"` [INFO] [stdout] 7d67d3149be5014407127c2d1c6d3fd4eab344a874561f7bb8eab0b65613e6ed