[INFO] updating cached repository k2bd/star_battle_mc_solver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/k2bd/star_battle_mc_solver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/k2bd/star_battle_mc_solver" "work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_solver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/k2bd/star_battle_mc_solver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/star_battle_mc_solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/star_battle_mc_solver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3c62c3ca2292e3646fcc9b021e097eb71be6a772 [INFO] sha for GitHub repo k2bd/star_battle_mc_solver: 3c62c3ca2292e3646fcc9b021e097eb71be6a772 [INFO] validating manifest of k2bd/star_battle_mc_solver 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 k2bd/star_battle_mc_solver 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 k2bd/star_battle_mc_solver [INFO] finished frobbing k2bd/star_battle_mc_solver [INFO] frobbed toml for k2bd/star_battle_mc_solver written to work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_solver/Cargo.toml [INFO] started frobbing k2bd/star_battle_mc_solver [INFO] finished frobbing k2bd/star_battle_mc_solver [INFO] frobbed toml for k2bd/star_battle_mc_solver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/star_battle_mc_solver/Cargo.toml [INFO] crate k2bd/star_battle_mc_solver 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing k2bd/star_battle_mc_solver against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_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=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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] d5f61743b0b2de4ccb987f4c789e7debc1fe5f6c381b3fc6924dc18e7f2bb7fb [INFO] running `"docker" "start" "-a" "d5f61743b0b2de4ccb987f4c789e7debc1fe5f6c381b3fc6924dc18e7f2bb7fb"` [INFO] [stderr] Compiling star_battle v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `rand::Rng` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use rand::Rng; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `regions` [INFO] [stderr] --> src/main.rs:92:39 [INFO] [stderr] | [INFO] [stderr] 92 | fn score(star_board: &Vec>, regions: &Vec>, n_stars: usize) -> usize { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_regions` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/main.rs:131:9 [INFO] [stderr] | [INFO] [stderr] 131 | for row in board { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut filename; [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 1.58s [INFO] running `"docker" "inspect" "d5f61743b0b2de4ccb987f4c789e7debc1fe5f6c381b3fc6924dc18e7f2bb7fb"` [INFO] running `"docker" "rm" "-f" "d5f61743b0b2de4ccb987f4c789e7debc1fe5f6c381b3fc6924dc18e7f2bb7fb"` [INFO] [stdout] d5f61743b0b2de4ccb987f4c789e7debc1fe5f6c381b3fc6924dc18e7f2bb7fb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_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=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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 2c1bfaeb63d0589f4ba9fbd0968b364740a5ba432e93dd6d7214e29e1b0709db [INFO] running `"docker" "start" "-a" "2c1bfaeb63d0589f4ba9fbd0968b364740a5ba432e93dd6d7214e29e1b0709db"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling star_battle v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `rand::Rng` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use rand::Rng; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `regions` [INFO] [stderr] --> src/main.rs:92:39 [INFO] [stderr] | [INFO] [stderr] 92 | fn score(star_board: &Vec>, regions: &Vec>, n_stars: usize) -> usize { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_regions` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/main.rs:131:9 [INFO] [stderr] | [INFO] [stderr] 131 | for row in board { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut filename; [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 0.66s [INFO] running `"docker" "inspect" "2c1bfaeb63d0589f4ba9fbd0968b364740a5ba432e93dd6d7214e29e1b0709db"` [INFO] running `"docker" "rm" "-f" "2c1bfaeb63d0589f4ba9fbd0968b364740a5ba432e93dd6d7214e29e1b0709db"` [INFO] [stdout] 2c1bfaeb63d0589f4ba9fbd0968b364740a5ba432e93dd6d7214e29e1b0709db [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/star_battle_mc_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=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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 945fe0421b3fd195808ebcb1b2715e4f3018ab1adbfa104a34eeb38d41ace981 [INFO] running `"docker" "start" "-a" "945fe0421b3fd195808ebcb1b2715e4f3018ab1adbfa104a34eeb38d41ace981"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/star_battle-f464f3613aa26e2a [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" "945fe0421b3fd195808ebcb1b2715e4f3018ab1adbfa104a34eeb38d41ace981"` [INFO] running `"docker" "rm" "-f" "945fe0421b3fd195808ebcb1b2715e4f3018ab1adbfa104a34eeb38d41ace981"` [INFO] [stdout] 945fe0421b3fd195808ebcb1b2715e4f3018ab1adbfa104a34eeb38d41ace981