[INFO] cloning repository https://github.com/Perococco/boids
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Perococco/boids" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerococco%2Fboids", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerococco%2Fboids'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06bc209bd1df4efb2fc9812cb90625bb09876500
[INFO] building Perococco/boids against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerococco%2Fboids" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Perococco/boids on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Perococco/boids
[INFO] finished tweaking git repo https://github.com/Perococco/boids
[INFO] tweaked toml for git repo https://github.com/Perococco/boids written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Perococco/boids 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec-tree v0.1.2
[INFO] [stderr]   Downloaded raylib v3.5.0
[INFO] [stderr]   Downloaded raylib-sys v3.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83eef95b9aa85a2bd74396507c1dd57eadf3e5956eeb1ecf3b7cb5de5981c3cf
[INFO] running `Command { std: "docker" "start" "-a" "83eef95b9aa85a2bd74396507c1dd57eadf3e5956eeb1ecf3b7cb5de5981c3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83eef95b9aa85a2bd74396507c1dd57eadf3e5956eeb1ecf3b7cb5de5981c3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83eef95b9aa85a2bd74396507c1dd57eadf3e5956eeb1ecf3b7cb5de5981c3cf", kill_on_drop: false }`
[INFO] [stdout] 83eef95b9aa85a2bd74396507c1dd57eadf3e5956eeb1ecf3b7cb5de5981c3cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60d78693f14707a434bce71fd74275b578bf82354c12ef379ab3e5b42a2cef9d
[INFO] running `Command { std: "docker" "start" "-a" "60d78693f14707a434bce71fd74275b578bf82354c12ef379ab3e5b42a2cef9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling generational-arena v0.2.8
[INFO] [stderr]    Compiling vec-tree v0.1.2
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling raylib-sys v3.5.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stdout] warning: unused import: `std::path::Iter`
[INFO] [stdout]  --> tree/src/tree.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> tree/src/tree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `children` is never used
[INFO] [stdout]    --> tree/src/tree.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl<T> TreeData<T> where T: TreeNode<T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn children(&self) -> Vec<RefNode<T>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling raylib v3.5.0
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/gui)
[INFO] [stdout] warning: constant `SLIDER_BAR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 | const SLIDER_BAR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_HEIGHT` is never used
[INFO] [stdout]   --> gui/src/slider.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | const SLIDER_CURSOR_HEIGHT: f32 = 30.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | const SLIDER_CURSOR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_COLOR` is never used
[INFO] [stdout]   --> gui/src/slider.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const SLIDER_CURSOR_COLOR: Color = Color::BLACK;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> gui/src/widget_state.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling boids v0.1.0 (/opt/rustwide/workdir/boids)
[INFO] [stdout] warning: unused import: `raylib::consts::*`
[INFO] [stdout]  --> boids/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use raylib::consts::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GuiData`
[INFO] [stdout]  --> boids/src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use gui::gui::{Gui, GuiData};
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::border::Border`
[INFO] [stdout]   --> boids/src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use gui::border::Border;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::background::Background`
[INFO] [stdout]   --> boids/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use gui::background::Background;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::fill::Fill`
[INFO] [stdout]   --> boids/src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use gui::fill::Fill;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `abort` and `exit`
[INFO] [stdout]   --> boids/src/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::process::{abort, exit};
[INFO] [stdout]    |                    ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> boids/src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> boids/src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> boids/src/data/boid.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let v: f32 = rand::random::<f32>() * PI * 2.0;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> boids/src/main.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let mut should_quit = false;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> boids/src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     gui.load_font(&mut rl, &thread, "default", font_path, 48, 200);
[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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let _ = gui.load_font(&mut rl, &thread, "default", font_path, 48, 200);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> boids/src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     gui.load_font(&mut rl, &thread, "small", font_path, 20, 200);
[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] 125 |     let _ = gui.load_font(&mut rl, &thread, "small", font_path, 20, 200);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.54s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "60d78693f14707a434bce71fd74275b578bf82354c12ef379ab3e5b42a2cef9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d78693f14707a434bce71fd74275b578bf82354c12ef379ab3e5b42a2cef9d", kill_on_drop: false }`
[INFO] [stdout] 60d78693f14707a434bce71fd74275b578bf82354c12ef379ab3e5b42a2cef9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0383c4ab32406b6d3b83e07617ef98f79bc2dec2f1c591e77c3c7344741f458
[INFO] running `Command { std: "docker" "start" "-a" "b0383c4ab32406b6d3b83e07617ef98f79bc2dec2f1c591e77c3c7344741f458", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::path::Iter`
[INFO] [stdout]  --> tree/src/tree.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> tree/src/tree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `children` is never used
[INFO] [stdout]    --> tree/src/tree.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl<T> TreeData<T> where T: TreeNode<T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn children(&self) -> Vec<RefNode<T>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_BAR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 | const SLIDER_BAR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_HEIGHT` is never used
[INFO] [stdout]   --> gui/src/slider.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | const SLIDER_CURSOR_HEIGHT: f32 = 30.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | const SLIDER_CURSOR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_COLOR` is never used
[INFO] [stdout]   --> gui/src/slider.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const SLIDER_CURSOR_COLOR: Color = Color::BLACK;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> gui/src/widget_state.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/gui)
[INFO] [stderr]    Compiling boids v0.1.0 (/opt/rustwide/workdir/boids)
[INFO] [stdout] warning: unused import: `std::path::Iter`
[INFO] [stdout]  --> tree/src/tree.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> tree/src/tree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `raylib::consts::*`
[INFO] [stdout]  --> boids/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use raylib::consts::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GuiData`
[INFO] [stdout]  --> boids/src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use gui::gui::{Gui, GuiData};
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::border::Border`
[INFO] [stdout]   --> boids/src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use gui::border::Border;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::background::Background`
[INFO] [stdout]   --> boids/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use gui::background::Background;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gui::fill::Fill`
[INFO] [stdout]   --> boids/src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use gui::fill::Fill;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `abort` and `exit`
[INFO] [stdout]   --> boids/src/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::process::{abort, exit};
[INFO] [stdout]    |                    ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> boids/src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> boids/src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> boids/src/data/boid.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let v: f32 = rand::random::<f32>() * PI * 2.0;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `children` is never used
[INFO] [stdout]    --> tree/src/tree.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl<T> TreeData<T> where T: TreeNode<T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn children(&self) -> Vec<RefNode<T>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> boids/src/main.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let mut should_quit = false;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> boids/src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     gui.load_font(&mut rl, &thread, "default", font_path, 48, 200);
[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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let _ = gui.load_font(&mut rl, &thread, "default", font_path, 48, 200);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> boids/src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     gui.load_font(&mut rl, &thread, "small", font_path, 20, 200);
[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] 125 |     let _ = gui.load_font(&mut rl, &thread, "small", font_path, 20, 200);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_BAR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 | const SLIDER_BAR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_HEIGHT` is never used
[INFO] [stdout]   --> gui/src/slider.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | const SLIDER_CURSOR_HEIGHT: f32 = 30.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_THICKNESS` is never used
[INFO] [stdout]   --> gui/src/slider.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | const SLIDER_CURSOR_THICKNESS: f32 = 1.0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SLIDER_CURSOR_COLOR` is never used
[INFO] [stdout]   --> gui/src/slider.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const SLIDER_CURSOR_COLOR: Color = Color::BLACK;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> gui/src/widget_state.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = &self.dirty_flags.set(dirty);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b0383c4ab32406b6d3b83e07617ef98f79bc2dec2f1c591e77c3c7344741f458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0383c4ab32406b6d3b83e07617ef98f79bc2dec2f1c591e77c3c7344741f458", kill_on_drop: false }`
[INFO] [stdout] b0383c4ab32406b6d3b83e07617ef98f79bc2dec2f1c591e77c3c7344741f458