[INFO] updating cached repository tbelaire/maze_w25
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tbelaire/maze_w25
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tbelaire/maze_w25" "work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/tbelaire/maze_w25"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/tbelaire/maze_w25'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tbelaire/maze_w25" "work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/tbelaire/maze_w25"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/tbelaire/maze_w25'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34764ca4a25e3ae49ba0e92c0b22222b996532d5
[INFO] sha for GitHub repo tbelaire/maze_w25: 34764ca4a25e3ae49ba0e92c0b22222b996532d5
[INFO] validating manifest of tbelaire/maze_w25 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tbelaire/maze_w25 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tbelaire/maze_w25
[INFO] finished frobbing tbelaire/maze_w25
[INFO] frobbed toml for tbelaire/maze_w25 written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/tbelaire/maze_w25/Cargo.toml
[INFO] started frobbing tbelaire/maze_w25
[INFO] finished frobbing tbelaire/maze_w25
[INFO] frobbed toml for tbelaire/maze_w25 written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/tbelaire/maze_w25/Cargo.toml
[INFO] crate tbelaire/maze_w25 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tbelaire/maze_w25 against master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-3/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/tbelaire/maze_w25:/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" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a41ff920b8f7eb145f58f478f0f1c64e554d0f177a062455dceb80fd8f87d3f1
[INFO] running `"docker" "start" "-a" "a41ff920b8f7eb145f58f478f0f1c64e554d0f177a062455dceb80fd8f87d3f1"`
[INFO] [stderr]     Checking libc v0.2.15
[INFO] [stderr]     Checking text_io v0.1.5
[INFO] [stderr]     Checking ansi_term v0.8.0
[INFO] [stderr]     Checking fern v0.3.5
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `from_file`
[INFO] [stderr]   --> src/maze.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn from_file(filename: &str) -> std::io::Result<Maze> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/maze.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn new(map: Vec<Vec<Tile>>) -> Maze {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `average`
[INFO] [stderr]   --> src/posn.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn average(self, other: Posn) -> Posn {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `direction_to`
[INFO] [stderr]   --> src/posn.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn direction_to(self, other: Posn) -> Direction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_file`
[INFO] [stderr]   --> src/maze.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn from_file(filename: &str) -> std::io::Result<Maze> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `average`
[INFO] [stderr]   --> src/posn.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn average(self, other: Posn) -> Posn {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `"docker" "inspect" "a41ff920b8f7eb145f58f478f0f1c64e554d0f177a062455dceb80fd8f87d3f1"`
[INFO] running `"docker" "rm" "-f" "a41ff920b8f7eb145f58f478f0f1c64e554d0f177a062455dceb80fd8f87d3f1"`
[INFO] [stdout] a41ff920b8f7eb145f58f478f0f1c64e554d0f177a062455dceb80fd8f87d3f1