[INFO] cloning repository https://github.com/ctfhacker/tinytowns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctfhacker/tinytowns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctfhacker%2Ftinytowns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctfhacker%2Ftinytowns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40bd8e0d3d55ebd7a99edd55e083a77d604d0c2d
[INFO] testing ctfhacker/tinytowns against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctfhacker%2Ftinytowns" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ctfhacker/tinytowns
[INFO] finished tweaking git repo https://github.com/ctfhacker/tinytowns
[INFO] tweaked toml for git repo https://github.com/ctfhacker/tinytowns written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ctfhacker/tinytowns on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ctfhacker/tinytowns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd74decc9f321bffff7311fbe7baed89245190aeaa20248ec0d457396eb87c6a
[INFO] running `Command { std: "docker" "start" "-a" "bd74decc9f321bffff7311fbe7baed89245190aeaa20248ec0d457396eb87c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd74decc9f321bffff7311fbe7baed89245190aeaa20248ec0d457396eb87c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd74decc9f321bffff7311fbe7baed89245190aeaa20248ec0d457396eb87c6a", kill_on_drop: false }`
[INFO] [stdout] bd74decc9f321bffff7311fbe7baed89245190aeaa20248ec0d457396eb87c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a9d65aaf85fc94abcfc03316bc0941bb2c17ec480cbeb7ebf776872a7ebc8da
[INFO] running `Command { std: "docker" "start" "-a" "4a9d65aaf85fc94abcfc03316bc0941bb2c17ec480cbeb7ebf776872a7ebc8da", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinytowns-ai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `BOARD_WIDTH` is never used
[INFO] [stdout]   --> src/lib.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | const BOARD_WIDTH: u8 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOARD_HEIGHT` is never used
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | const BOARD_HEIGHT: u8 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/lib.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/lib.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 36 |     fn new() -> Board {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn get_board_index(&self, x: u8, y: u8) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn get_piece(&self, x: u8, y: u8) -> Option<Piece> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn place_piece(&mut self, x: u8, y: u8, resource: Resource) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn place_brick(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn place_glass(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn place_stone(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn place_wheat(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn place_wood(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn place_building(&mut self, x: u8, y: u8, building: Building) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Piece` is never used
[INFO] [stdout]    --> src/lib.rs:103:6
[INFO] [stdout]     |
[INFO] [stdout] 103 | enum Piece {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Resource` is never used
[INFO] [stdout]    --> src/lib.rs:110:6
[INFO] [stdout]     |
[INFO] [stdout] 110 | enum Resource {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Building` is never used
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 120 | enum Building {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pattern`, `rotations`, and `patterns` are never used
[INFO] [stdout]    --> src/lib.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl Building {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 127 |     fn pattern(&self) -> Pattern {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn rotations(&self) -> HashSet<Pattern> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn patterns(&self) -> Vec<Vec<((u8, u8), Option<Resource>)>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pattern` is never constructed
[INFO] [stdout]    --> src/lib.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 | struct Pattern {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 273 | impl Pattern {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 274 |     fn new(coords: Vec<Vec<Option<Resource>>>) -> Pattern {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TinyTownsError` is never used
[INFO] [stdout]    --> src/lib.rs:311:6
[INFO] [stdout]     |
[INFO] [stdout] 311 | enum TinyTownsError {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_legend` is never used
[INFO] [stdout]    --> src/lib.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn print_legend() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:301:17
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let _ = write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |             writeln!(f, "");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 303 |             let _ = writeln!(f, "");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "4a9d65aaf85fc94abcfc03316bc0941bb2c17ec480cbeb7ebf776872a7ebc8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9d65aaf85fc94abcfc03316bc0941bb2c17ec480cbeb7ebf776872a7ebc8da", kill_on_drop: false }`
[INFO] [stdout] 4a9d65aaf85fc94abcfc03316bc0941bb2c17ec480cbeb7ebf776872a7ebc8da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03f2dbe3274c1a93f8639b9378985dc2dc2014d0623a284af2baf2c55fc6dadc
[INFO] running `Command { std: "docker" "start" "-a" "03f2dbe3274c1a93f8639b9378985dc2dc2014d0623a284af2baf2c55fc6dadc", kill_on_drop: false }`
[INFO] [stdout] warning: constant `BOARD_WIDTH` is never used
[INFO] [stdout]   --> src/lib.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | const BOARD_WIDTH: u8 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOARD_HEIGHT` is never used
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | const BOARD_HEIGHT: u8 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/lib.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/lib.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 36 |     fn new() -> Board {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn get_board_index(&self, x: u8, y: u8) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn get_piece(&self, x: u8, y: u8) -> Option<Piece> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn place_piece(&mut self, x: u8, y: u8, resource: Resource) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn place_brick(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn place_glass(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn place_stone(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn place_wheat(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn place_wood(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn place_building(&mut self, x: u8, y: u8, building: Building) -> Result<(), TinyTownsError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tinytowns-ai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Piece` is never used
[INFO] [stdout]    --> src/lib.rs:103:6
[INFO] [stdout]     |
[INFO] [stdout] 103 | enum Piece {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Resource` is never used
[INFO] [stdout]    --> src/lib.rs:110:6
[INFO] [stdout]     |
[INFO] [stdout] 110 | enum Resource {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Building` is never used
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 120 | enum Building {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pattern`, `rotations`, and `patterns` are never used
[INFO] [stdout]    --> src/lib.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl Building {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 127 |     fn pattern(&self) -> Pattern {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn rotations(&self) -> HashSet<Pattern> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn patterns(&self) -> Vec<Vec<((u8, u8), Option<Resource>)>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pattern` is never constructed
[INFO] [stdout]    --> src/lib.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 | struct Pattern {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 273 | impl Pattern {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 274 |     fn new(coords: Vec<Vec<Option<Resource>>>) -> Pattern {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TinyTownsError` is never used
[INFO] [stdout]    --> src/lib.rs:311:6
[INFO] [stdout]     |
[INFO] [stdout] 311 | enum TinyTownsError {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_legend` is never used
[INFO] [stdout]    --> src/lib.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn print_legend() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:301:17
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let _ = write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |             writeln!(f, "");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 303 |             let _ = writeln!(f, "");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Theater` is never constructed
[INFO] [stdout]    --> src/lib.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | enum Building {
[INFO] [stdout]     |      -------- variant in this enum
[INFO] [stdout] 121 |     Well,
[INFO] [stdout] 122 |     Theater,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Building` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `patterns` is never used
[INFO] [stdout]    --> src/lib.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl Building {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn patterns(&self) -> Vec<Vec<((u8, u8), Option<Resource>)>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_legend` is never used
[INFO] [stdout]    --> src/lib.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn print_legend() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:301:17
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let _ = write!(f, "{:?} ", resource);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |             writeln!(f, "");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 303 |             let _ = writeln!(f, "");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:348:9
[INFO] [stdout]     |
[INFO] [stdout] 348 |         board.place_brick(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 348 |         let _ = board.place_brick(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |         board.place_glass(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let _ = board.place_glass(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |         board.place_stone(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 362 |         let _ = board.place_stone(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:369:9
[INFO] [stdout]     |
[INFO] [stdout] 369 |         board.place_wheat(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let _ = board.place_wheat(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         board.place_wood(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 376 |         let _ = board.place_wood(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:383:9
[INFO] [stdout]     |
[INFO] [stdout] 383 |         board.place_wood(0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |         let _ = board.place_wood(0, 0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |         board.place_building(0, 0, Building::Well);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 402 |         let _ = board.place_building(0, 0, Building::Well);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "03f2dbe3274c1a93f8639b9378985dc2dc2014d0623a284af2baf2c55fc6dadc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f2dbe3274c1a93f8639b9378985dc2dc2014d0623a284af2baf2c55fc6dadc", kill_on_drop: false }`
[INFO] [stdout] 03f2dbe3274c1a93f8639b9378985dc2dc2014d0623a284af2baf2c55fc6dadc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dddc83605b21d255a6a3ff6b8059e575d3f3342c871a5a8398f214b5adb05cf0
[INFO] running `Command { std: "docker" "start" "-a" "dddc83605b21d255a6a3ff6b8059e575d3f3342c871a5a8398f214b5adb05cf0", kill_on_drop: false }`
[INFO] [stderr] warning: constant `BOARD_WIDTH` is never used
[INFO] [stderr]   --> src/lib.rs:27:7
[INFO] [stderr]    |
[INFO] [stderr] 27 | const BOARD_WIDTH: u8 = 4;
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BOARD_HEIGHT` is never used
[INFO] [stderr]   --> src/lib.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 | const BOARD_HEIGHT: u8 = 4;
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Board` is never constructed
[INFO] [stderr]   --> src/lib.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct Board {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/lib.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl Board {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 36 |     fn new() -> Board {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     fn get_board_index(&self, x: u8, y: u8) -> u8 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |     fn get_piece(&self, x: u8, y: u8) -> Option<Piece> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     fn place_piece(&mut self, x: u8, y: u8, resource: Resource) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     fn place_brick(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     fn place_glass(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 73 |     fn place_stone(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 77 |     fn place_wheat(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 81 |     fn place_wood(&mut self, x: u8, y: u8) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 85 |     fn place_building(&mut self, x: u8, y: u8, building: Building) -> Result<(), TinyTownsError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Piece` is never used
[INFO] [stderr]    --> src/lib.rs:103:6
[INFO] [stderr]     |
[INFO] [stderr] 103 | enum Piece {
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Resource` is never used
[INFO] [stderr]    --> src/lib.rs:110:6
[INFO] [stderr]     |
[INFO] [stderr] 110 | enum Resource {
[INFO] [stderr]     |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Building` is never used
[INFO] [stderr]    --> src/lib.rs:120:6
[INFO] [stderr]     |
[INFO] [stderr] 120 | enum Building {
[INFO] [stderr]     |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `pattern`, `rotations`, and `patterns` are never used
[INFO] [stderr]    --> src/lib.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | impl Building {
[INFO] [stderr]     | ------------- methods in this implementation
[INFO] [stderr] 127 |     fn pattern(&self) -> Pattern {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     fn rotations(&self) -> HashSet<Pattern> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 233 |     fn patterns(&self) -> Vec<Vec<((u8, u8), Option<Resource>)>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pattern` is never constructed
[INFO] [stderr]    --> src/lib.rs:267:8
[INFO] [stderr]     |
[INFO] [stderr] 267 | struct Pattern {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:274:8
[INFO] [stderr]     |
[INFO] [stderr] 273 | impl Pattern {
[INFO] [stderr]     | ------------ associated function in this implementation
[INFO] [stderr] 274 |     fn new(coords: Vec<Vec<Option<Resource>>>) -> Pattern {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TinyTownsError` is never used
[INFO] [stderr]    --> src/lib.rs:311:6
[INFO] [stderr]     |
[INFO] [stderr] 311 | enum TinyTownsError {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_legend` is never used
[INFO] [stderr]    --> src/lib.rs:319:4
[INFO] [stderr]     |
[INFO] [stderr] 319 | fn print_legend() {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:301:17
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 write!(f, "{:?} ", resource);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 let _ = write!(f, "{:?} ", resource);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:303:13
[INFO] [stderr]     |
[INFO] [stderr] 303 |             writeln!(f, "");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 303 |             let _ = writeln!(f, "");
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `tinytowns-ai` (lib) generated 14 warnings
[INFO] [stderr] warning: variant `Theater` is never constructed
[INFO] [stderr]    --> src/lib.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | enum Building {
[INFO] [stderr]     |      -------- variant in this enum
[INFO] [stderr] 121 |     Well,
[INFO] [stderr] 122 |     Theater,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Building` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `patterns` is never used
[INFO] [stderr]    --> src/lib.rs:233:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | impl Building {
[INFO] [stderr]     | ------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 233 |     fn patterns(&self) -> Vec<Vec<((u8, u8), Option<Resource>)>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |         board.place_brick(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 348 |         let _ = board.place_brick(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:355:9
[INFO] [stderr]     |
[INFO] [stderr] 355 |         board.place_glass(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 355 |         let _ = board.place_glass(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:362:9
[INFO] [stderr]     |
[INFO] [stderr] 362 |         board.place_stone(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 362 |         let _ = board.place_stone(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:369:9
[INFO] [stderr]     |
[INFO] [stderr] 369 |         board.place_wheat(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 369 |         let _ = board.place_wheat(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         board.place_wood(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 376 |         let _ = board.place_wood(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         board.place_wood(0, 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 383 |         let _ = board.place_wood(0, 0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |         board.place_building(0, 0, Building::Well);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let _ = board.place_building(0, 0, Building::Well);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `tinytowns-ai` (lib test) generated 12 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tinytowns_ai-913e9ec942652370)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::add_glass ... ok
[INFO] [stdout] test tests::add_brick ... ok
[INFO] [stdout] test tests::add_stone ... ok
[INFO] [stdout] test tests::board_init_board ... ok
[INFO] [stdout] test tests::error_occupied ... ok
[INFO] [stdout] test tests::error_out_of_bounds_x ... ok
[INFO] [stdout] test tests::add_wheat ... ok
[INFO] [stdout] test tests::error_out_of_bounds_y ... ok
[INFO] [stdout] test tests::test_rotations_easy ... ok
[INFO] [stdout] test tests::add_well ... ok
[INFO] [stdout] test tests::add_wood ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tinytowns_ai-57ff8a3feba70e95)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tinytowns_ai
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dddc83605b21d255a6a3ff6b8059e575d3f3342c871a5a8398f214b5adb05cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddc83605b21d255a6a3ff6b8059e575d3f3342c871a5a8398f214b5adb05cf0", kill_on_drop: false }`
[INFO] [stdout] dddc83605b21d255a6a3ff6b8059e575d3f3342c871a5a8398f214b5adb05cf0