[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] building ctfhacker/tinytowns against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctfhacker%2Ftinytowns" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctfhacker/tinytowns on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f7b8b4ebd352b806aa2ce370c64b356cc4a92b09fd75d9871341fe677ab5885
[INFO] running `Command { std: "docker" "start" "-a" "5f7b8b4ebd352b806aa2ce370c64b356cc4a92b09fd75d9871341fe677ab5885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f7b8b4ebd352b806aa2ce370c64b356cc4a92b09fd75d9871341fe677ab5885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7b8b4ebd352b806aa2ce370c64b356cc4a92b09fd75d9871341fe677ab5885", kill_on_drop: false }`
[INFO] [stdout] 5f7b8b4ebd352b806aa2ce370c64b356cc4a92b09fd75d9871341fe677ab5885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bcc9e9d25684606f633d218d7135ac92a0c5367001b8847e4dc7cbadb53014c
[INFO] running `Command { std: "docker" "start" "-a" "0bcc9e9d25684606f633d218d7135ac92a0c5367001b8847e4dc7cbadb53014c", 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)]` 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]    = note: `Board` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Piece` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Resource` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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]     = note: `Building` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Pattern` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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]     = note: `TinyTownsError` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[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]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "0bcc9e9d25684606f633d218d7135ac92a0c5367001b8847e4dc7cbadb53014c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcc9e9d25684606f633d218d7135ac92a0c5367001b8847e4dc7cbadb53014c", kill_on_drop: false }`
[INFO] [stdout] 0bcc9e9d25684606f633d218d7135ac92a0c5367001b8847e4dc7cbadb53014c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a0b7beb2479042d7787d677948808bd7a92f31fd139cdc4465f176d543b5ec
[INFO] running `Command { std: "docker" "start" "-a" "d2a0b7beb2479042d7787d677948808bd7a92f31fd139cdc4465f176d543b5ec", 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tinytowns-ai v0.1.0 (/opt/rustwide/workdir)
[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]    = note: `Board` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Piece` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Resource` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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]     = note: `Building` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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]     = note: `Pattern` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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]     = note: `TinyTownsError` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[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)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[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]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[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]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 0.89s
[INFO] running `Command { std: "docker" "inspect" "d2a0b7beb2479042d7787d677948808bd7a92f31fd139cdc4465f176d543b5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a0b7beb2479042d7787d677948808bd7a92f31fd139cdc4465f176d543b5ec", kill_on_drop: false }`
[INFO] [stdout] d2a0b7beb2479042d7787d677948808bd7a92f31fd139cdc4465f176d543b5ec