[INFO] updating cached repository 02alexander/maze-solver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/02alexander/maze-solver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/02alexander/maze-solver" "work/ex/beta-1.37-6/sources/1.36.0/gh/02alexander/maze-solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/02alexander/maze-solver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/02alexander/maze-solver" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-solver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-solver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4303321d53fdbde07fa4a170dc2621ef0f8172fb [INFO] sha for GitHub repo 02alexander/maze-solver: 4303321d53fdbde07fa4a170dc2621ef0f8172fb [INFO] validating manifest of 02alexander/maze-solver on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of 02alexander/maze-solver on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing 02alexander/maze-solver [INFO] finished frobbing 02alexander/maze-solver [INFO] frobbed toml for 02alexander/maze-solver written to work/ex/beta-1.37-6/sources/1.36.0/gh/02alexander/maze-solver/Cargo.toml [INFO] started frobbing 02alexander/maze-solver [INFO] finished frobbing 02alexander/maze-solver [INFO] frobbed toml for 02alexander/maze-solver written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-solver/Cargo.toml [INFO] crate 02alexander/maze-solver already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing 02alexander/maze-solver against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] f4558c1c999b60a4933689a23b97cb344918ce48d9bbefb2d9a22ecc94e8b62a [INFO] running `"docker" "start" "-a" "f4558c1c999b60a4933689a23b97cb344918ce48d9bbefb2d9a22ecc94e8b62a"` [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Compiling flate2 v0.2.20 [INFO] [stderr] Compiling imagefmt v4.0.0 [INFO] [stderr] Compiling maze-solver v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused imports: `read`, `write` [INFO] [stderr] --> src/main.rs:3:16 [INFO] [stderr] | [INFO] [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType}; [INFO] [stderr] | ^^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/tree.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Node` [INFO] [stderr] --> src/path_to_end.rs:3:35 [INFO] [stderr] | [INFO] [stderr] 3 | use super::tree::{QuaternaryTree, Node, Link}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | let mut cur = &mut *next.take().unwrap(); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:20:2 [INFO] [stderr] | [INFO] [stderr] 20 | imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.68s [INFO] running `"docker" "inspect" "f4558c1c999b60a4933689a23b97cb344918ce48d9bbefb2d9a22ecc94e8b62a"` [INFO] running `"docker" "rm" "-f" "f4558c1c999b60a4933689a23b97cb344918ce48d9bbefb2d9a22ecc94e8b62a"` [INFO] [stdout] f4558c1c999b60a4933689a23b97cb344918ce48d9bbefb2d9a22ecc94e8b62a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] a30ee0970bce60bab8a6d929c03d4cd6c12565a2d4d645d13192e9bfbb6c8256 [INFO] running `"docker" "start" "-a" "a30ee0970bce60bab8a6d929c03d4cd6c12565a2d4d645d13192e9bfbb6c8256"` [INFO] [stderr] Compiling maze-solver v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused imports: `read`, `write` [INFO] [stderr] --> src/main.rs:3:16 [INFO] [stderr] | [INFO] [stderr] 3 | use imagefmt::{read, write, ColFmt, ColType}; [INFO] [stderr] | ^^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/tree.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | let mut cur = &mut *next.take().unwrap(); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:20:2 [INFO] [stderr] | [INFO] [stderr] 20 | imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.83s [INFO] running `"docker" "inspect" "a30ee0970bce60bab8a6d929c03d4cd6c12565a2d4d645d13192e9bfbb6c8256"` [INFO] running `"docker" "rm" "-f" "a30ee0970bce60bab8a6d929c03d4cd6c12565a2d4d645d13192e9bfbb6c8256"` [INFO] [stdout] a30ee0970bce60bab8a6d929c03d4cd6c12565a2d4d645d13192e9bfbb6c8256 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/02alexander/maze-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" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] 15d34abf075c3567caa420840390cf50fd972db251a920ea14345907729e6538 [INFO] running `"docker" "start" "-a" "15d34abf075c3567caa420840390cf50fd972db251a920ea14345907729e6538"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/maze_solver-c7960d6c77cbb6d1 [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test maze_to_tree::test::t_maze_to_tree ... ok [INFO] [stdout] test path_to_end::test::t_path_to_end ... ok [INFO] [stdout] test maze_to_tree::test::t_get_tile ... ok [INFO] [stdout] test maze::test::test_find_start ... ok [INFO] [stdout] test maze::test::from ... ok [INFO] [stdout] test maze::test::test_find_end ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "15d34abf075c3567caa420840390cf50fd972db251a920ea14345907729e6538"` [INFO] running `"docker" "rm" "-f" "15d34abf075c3567caa420840390cf50fd972db251a920ea14345907729e6538"` [INFO] [stdout] 15d34abf075c3567caa420840390cf50fd972db251a920ea14345907729e6538