[INFO] updating cached repository mpgarate/rust-fifteen-puzzle [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mpgarate/rust-fifteen-puzzle [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mpgarate/rust-fifteen-puzzle" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mpgarate/rust-fifteen-puzzle"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mpgarate/rust-fifteen-puzzle'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mpgarate/rust-fifteen-puzzle" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mpgarate/rust-fifteen-puzzle"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mpgarate/rust-fifteen-puzzle'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ecc1c4e0f50d6d7197aac0e18cc619f2fff226db [INFO] sha for GitHub repo mpgarate/rust-fifteen-puzzle: ecc1c4e0f50d6d7197aac0e18cc619f2fff226db [INFO] validating manifest of mpgarate/rust-fifteen-puzzle on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mpgarate/rust-fifteen-puzzle on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mpgarate/rust-fifteen-puzzle [INFO] finished frobbing mpgarate/rust-fifteen-puzzle [INFO] frobbed toml for mpgarate/rust-fifteen-puzzle written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mpgarate/rust-fifteen-puzzle/Cargo.toml [INFO] started frobbing mpgarate/rust-fifteen-puzzle [INFO] finished frobbing mpgarate/rust-fifteen-puzzle [INFO] frobbed toml for mpgarate/rust-fifteen-puzzle written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mpgarate/rust-fifteen-puzzle/Cargo.toml [INFO] crate mpgarate/rust-fifteen-puzzle already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mpgarate/rust-fifteen-puzzle/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/passcod/cargo-watch` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/passcod/cargo-watch` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking mpgarate/rust-fifteen-puzzle against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-5/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mpgarate/rust-fifteen-puzzle:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5c300ba7a3308955cbc6b52b2fcefa477c78c2d607bff156d4153542734c03aa [INFO] running `"docker" "start" "-a" "5c300ba7a3308955cbc6b52b2fcefa477c78c2d607bff156d4153542734c03aa"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Checking term_size v0.3.1 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking bstr v0.1.3 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking notify v4.0.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking globset v0.4.3 [INFO] [stderr] Checking watchexec v1.10.1 [INFO] [stderr] Checking cargo-watch v7.2.0 (https://github.com/passcod/cargo-watch#faa34e10) [INFO] [stderr] Checking fifteen_puzzle v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solver.rs:128:8 [INFO] [stderr] | [INFO] [stderr] 128 | if (depth > 100000) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solver.rs:128:8 [INFO] [stderr] | [INFO] [stderr] 128 | if (depth > 100000) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solver.rs:75:46 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn depth_limited_dfs(state: SolverState, mut depth: u64) -> Option> { [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] warning: function is never used: `depth_limited_dfs` [INFO] [stderr] --> src/solver.rs:75:1 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn depth_limited_dfs(state: SolverState, mut depth: u64) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve_idfs` [INFO] [stderr] --> src/solver.rs:118:1 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn solve_idfs(state: GameState) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solver.rs:75:46 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn depth_limited_dfs(state: SolverState, mut depth: u64) -> Option> { [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 11.53s [INFO] running `"docker" "inspect" "5c300ba7a3308955cbc6b52b2fcefa477c78c2d607bff156d4153542734c03aa"` [INFO] running `"docker" "rm" "-f" "5c300ba7a3308955cbc6b52b2fcefa477c78c2d607bff156d4153542734c03aa"` [INFO] [stdout] 5c300ba7a3308955cbc6b52b2fcefa477c78c2d607bff156d4153542734c03aa