[INFO] cloning repository https://github.com/nebnebben/Azul
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nebnebben/Azul" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebnebben%2FAzul", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebnebben%2FAzul'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 820ac6c3ab37826fa6f1ad44d77b7dd40f2956e8
[INFO] checking nebnebben/Azul against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebnebben%2FAzul" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nebnebben/Azul
[INFO] finished tweaking git repo https://github.com/nebnebben/Azul
[INFO] tweaked toml for git repo https://github.com/nebnebben/Azul written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nebnebben/Azul on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nebnebben/Azul 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" "+165655a2f1981fef27b31c547ad7631979fc5139" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking nebnebben/Azul against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebnebben%2FAzul" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nebnebben/Azul
[INFO] finished tweaking git repo https://github.com/nebnebben/Azul
[INFO] tweaked toml for git repo https://github.com/nebnebben/Azul written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nebnebben/Azul on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nebnebben/Azul 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" "+165655a2f1981fef27b31c547ad7631979fc5139" "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-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375
[INFO] running `Command { std: "docker" "start" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking Azul v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]   --> src/factories/bag.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use rand::seq::SliceRandom;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::player::player_constants::PATTERN_TILES`
[INFO] [stdout]   --> src/player/wall_tiles.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     use crate::player::player_constants::PATTERN_TILES;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Tiles: Hash` is not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 unfilled_tiles[i].insert(*tile);
[INFO] [stdout]    |                                   ^^^^^^ ----- `Tiles` doesn't satisfy the trait bound
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the trait `Hash` is not implemented for `Tiles`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `HashSet::<T, S, A>::insert`
[INFO] [stdout]   --> /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/collections/hash/set.rs:1034:4
[INFO] [stdout] help: consider annotating `Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `contains` exists for struct `HashSet<Tiles>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:25:38
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if !self.unfilled_tiles[row].contains(&placed_tile) {
[INFO] [stdout]    |                                      ^^^^^^^^ method cannot be called on `HashSet<Tiles>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | -------------- doesn't satisfy `Tiles: Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Tiles: Hash`
[INFO] [stdout] help: consider annotating `Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `remove` exists for struct `HashSet<Tiles>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:33:34
[INFO] [stdout]    |
[INFO] [stdout] 33 |         self.unfilled_tiles[row].remove(&placed_tile);
[INFO] [stdout]    |                                  ^^^^^^ method cannot be called on `HashSet<Tiles>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | -------------- doesn't satisfy `Tiles: Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Tiles: Hash`
[INFO] [stdout] help: consider annotating `Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `tiles::Tiles: Hash` is not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 unfilled_tiles[i].insert(*tile);
[INFO] [stdout]    |                                   ^^^^^^ ----- `tiles::Tiles` doesn't satisfy the trait bound
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the trait `Hash` is not implemented for `tiles::Tiles`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::collections::HashSet::<T, S, A>::insert`
[INFO] [stdout]   --> /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/collections/hash/set.rs:1034:4
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `contains` exists for struct `std::collections::HashSet<tiles::Tiles>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:25:38
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if !self.unfilled_tiles[row].contains(&placed_tile) {
[INFO] [stdout]    |                                      ^^^^^^^^ method cannot be called on `std::collections::HashSet<tiles::Tiles>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | -------------- doesn't satisfy `tiles::Tiles: Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `tiles::Tiles: Hash`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Azul` (bin "Azul") due to 3 previous errors
[INFO] [stdout] error[E0599]: the method `remove` exists for struct `std::collections::HashSet<tiles::Tiles>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:33:34
[INFO] [stdout]    |
[INFO] [stdout] 33 |         self.unfilled_tiles[row].remove(&placed_tile);
[INFO] [stdout]    |                                  ^^^^^^ method cannot be called on `std::collections::HashSet<tiles::Tiles>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | -------------- doesn't satisfy `tiles::Tiles: Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `tiles::Tiles: Hash`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the trait bound `tiles::Tiles: Hash` is not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:70:50
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(wall_tiles.unfilled_tiles[0], HashSet::from([DeepBlue, Yellow, Red, Black, IceBlue]));
[INFO] [stdout]    |                                                  ^^^^^^^ the trait `Hash` is not implemented for `tiles::Tiles`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required for `std::collections::HashSet<tiles::Tiles>` to implement `From<[tiles::Tiles; 5]>`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `std::collections::HashSet<tiles::Tiles>`
[INFO] [stdout]   --> src/player/wall_tiles.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(wall_tiles.unfilled_tiles[0], HashSet::from([DeepBlue, Yellow, Red, Black, IceBlue]));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         std::collections::HashSet<tiles::Tiles>
[INFO] [stdout]    |         std::collections::HashSet<tiles::Tiles>
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `Hash` might be missing for `tiles::Tiles`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | ^^^^^^^^^^^^^^ must implement `Hash`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `contains` exists for struct `std::collections::HashSet<tiles::Tiles>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/player/wall_tiles.rs:79:47
[INFO] [stdout]    |
[INFO] [stdout] 79 |         assert!(!wall_tiles.unfilled_tiles[0].contains(&placed_tile));
[INFO] [stdout]    |                                               ^^^^^^^^ method cannot be called on `std::collections::HashSet<tiles::Tiles>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Tiles {
[INFO] [stdout]    | -------------- doesn't satisfy `tiles::Tiles: Hash`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `tiles::Tiles: Hash`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]   --> src/tiles.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 + #[derive(Hash)]
[INFO] [stdout]  3 | pub enum Tiles {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `tiles::Tiles: Hash` is not satisfied
[INFO] [stdout]    --> src/player/wall_tiles.rs:157:36
[INFO] [stdout]     |
[INFO] [stdout] 157 |         assert_eq!(unplaced_tiles, HashSet::from([DeepBlue, Yellow, Red, Black, IceBlue]));
[INFO] [stdout]     |                                    ^^^^^^^ the trait `Hash` is not implemented for `tiles::Tiles`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `std::collections::HashSet<tiles::Tiles>` to implement `From<[tiles::Tiles; 5]>`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]    --> src/tiles.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout]   2 + #[derive(Hash)]
[INFO] [stdout]   3 | pub enum Tiles {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `std::collections::HashSet<tiles::Tiles>`
[INFO] [stdout]    --> src/player/wall_tiles.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         assert_eq!(unplaced_tiles, HashSet::from([DeepBlue, Yellow, Red, Black, IceBlue]));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         std::collections::HashSet<tiles::Tiles>
[INFO] [stdout]     |         std::collections::HashSet<tiles::Tiles>
[INFO] [stdout]     |
[INFO] [stdout] note: an implementation of `Hash` might be missing for `tiles::Tiles`
[INFO] [stdout]    --> src/tiles.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout]   2 | pub enum Tiles {
[INFO] [stdout]     | ^^^^^^^^^^^^^^ must implement `Hash`
[INFO] [stdout] help: consider annotating `tiles::Tiles` with `#[derive(Hash)]`
[INFO] [stdout]    --> src/tiles.rs:2:1
[INFO] [stdout]     |
[INFO] [stdout]   2 + #[derive(Hash)]
[INFO] [stdout]   3 | pub enum Tiles {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/factories/factory_tile.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut factory_tile = FactoryTile::new(tiles.clone());
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/factories/bag.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let contents = &bag.contents;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0369, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Azul` (bin "Azul" test) due to 8 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375", kill_on_drop: false }`
[INFO] [stdout] cbaa9fc7d87dbca343d10c4a4ebdfea1e06d38903da7e2b91a67027385779375
