[INFO] cloning repository https://github.com/gonegitterdunn/mastering-rust-fanstr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gonegitterdunn/mastering-rust-fanstr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgonegitterdunn%2Fmastering-rust-fanstr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgonegitterdunn%2Fmastering-rust-fanstr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 230f1dccf2a8f6889bd1b49baa0e0d0e13edce1a
[INFO] checking gonegitterdunn/mastering-rust-fanstr against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgonegitterdunn%2Fmastering-rust-fanstr" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gonegitterdunn/mastering-rust-fanstr on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gonegitterdunn/mastering-rust-fanstr
[INFO] finished tweaking git repo https://github.com/gonegitterdunn/mastering-rust-fanstr
[INFO] tweaked toml for git repo https://github.com/gonegitterdunn/mastering-rust-fanstr written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/gonegitterdunn/mastering-rust-fanstr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9002a42c67914285c5a9f050013d301d4717d6ca2b2ba2af9a26d634f58a920b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9002a42c67914285c5a9f050013d301d4717d6ca2b2ba2af9a26d634f58a920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9002a42c67914285c5a9f050013d301d4717d6ca2b2ba2af9a26d634f58a920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9002a42c67914285c5a9f050013d301d4717d6ca2b2ba2af9a26d634f58a920b", kill_on_drop: false }`
[INFO] [stdout] 9002a42c67914285c5a9f050013d301d4717d6ca2b2ba2af9a26d634f58a920b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eea6593400ab07ae56f1aceb2bfbf6d477b84ec70d0d02646038547c9e76d93
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3eea6593400ab07ae56f1aceb2bfbf6d477b84ec70d0d02646038547c9e76d93", kill_on_drop: false }`
[INFO] [stderr]     Checking fanstr-buigam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn new(x: usize, y: usize) -> GridSize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn new(x: usize, y: usize) -> Coord {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_square_ref_with_coord`
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn get_square_ref_with_coord<'a>(grid: &'a Grid, coord: &Coord) -> &'a Square {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_empty`
[INFO] [stdout]    --> src/main.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn generate_empty(x: usize, y: usize) -> Grid {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_coord_to_move_being_to`
[INFO] [stdout]    --> src/main.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn get_coord_to_move_being_to(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_new_coord`
[INFO] [stdout]    --> src/main.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_new_coord(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `move_north`
[INFO] [stdout]    --> src/main.rs:253:4
[INFO] [stdout]     |
[INFO] [stdout] 253 | fn move_north(coord: &Coord) -> Result<Coord, MovementError> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `move_south`
[INFO] [stdout]    --> src/main.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn move_south(coord: &Coord) -> Result<Coord, MovementError> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `move_east`
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn move_east(coord: &Coord) -> Result<Coord, MovementError> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `move_west`
[INFO] [stdout]    --> src/main.rs:271:4
[INFO] [stdout]     |
[INFO] [stdout] 271 | fn move_west(coord: &Coord) -> Result<Coord, MovementError> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "3eea6593400ab07ae56f1aceb2bfbf6d477b84ec70d0d02646038547c9e76d93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eea6593400ab07ae56f1aceb2bfbf6d477b84ec70d0d02646038547c9e76d93", kill_on_drop: false }`
[INFO] [stdout] 3eea6593400ab07ae56f1aceb2bfbf6d477b84ec70d0d02646038547c9e76d93