[INFO] cloning repository https://github.com/Akari202/grapher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akari202/grapher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkari202%2Fgrapher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkari202%2Fgrapher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f909996a95ba1606176a0e4b77fad1647fa9f641
[INFO] checking Akari202/grapher against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkari202%2Fgrapher" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Akari202/grapher
[INFO] finished tweaking git repo https://github.com/Akari202/grapher
[INFO] tweaked toml for git repo https://github.com/Akari202/grapher written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Akari202/grapher on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Akari202/grapher 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_chacha v0.9.0-alpha.1
[INFO] [stderr]   Downloaded rand_core v0.9.0-alpha.1
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[INFO] [stderr]   Downloaded zerocopy v0.8.0-alpha.6
[INFO] [stderr]   Downloaded sdl2-sys v0.36.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 666e07944c8ff541ce9edff890d952be76b22be09bbc9960a1be0c13485c555e
[INFO] running `Command { std: "docker" "start" "-a" "666e07944c8ff541ce9edff890d952be76b22be09bbc9960a1be0c13485c555e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "666e07944c8ff541ce9edff890d952be76b22be09bbc9960a1be0c13485c555e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "666e07944c8ff541ce9edff890d952be76b22be09bbc9960a1be0c13485c555e", kill_on_drop: false }`
[INFO] [stdout] 666e07944c8ff541ce9edff890d952be76b22be09bbc9960a1be0c13485c555e
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a262e55f27e06321b71755afd6a853d4992c02be4a6faa9eb288c18b0ab2bb77
[INFO] running `Command { std: "docker" "start" "-a" "a262e55f27e06321b71755afd6a853d4992c02be4a6faa9eb288c18b0ab2bb77", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking utf8parse v0.2.1
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[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-parse v0.2.3
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[INFO] [stderr]     Checking grapher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::pixels::Color;
[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 imports: `BLUE`, `GREEN`, `RED`, and `WHITE`
[INFO] [stdout]  --> src/main.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::colors::{BLUE, GREEN, RED, WHITE};
[INFO] [stdout]   |                     ^^^^  ^^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CENTER_Y`
[INFO] [stdout]   --> src/main.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::config::{CENTER_Y, WINDOW_HEIGHT, WINDOW_WIDTH};
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::function::UnaryFunction`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::function::UnaryFunction;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::renderer::Renderer`
[INFO] [stdout]  --> src/coordinate.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::renderer::Renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]  --> src/function.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread::current;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GREEN` and `RED`
[INFO] [stdout]  --> src/function.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::colors::{GREEN, RED};
[INFO] [stdout]   |                     ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::function::UnaryFunction`
[INFO] [stdout]  --> src/cursor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::function::UnaryFunction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::axis::Axis2D`
[INFO] [stdout]  --> src/sort.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::axis::Axis2D;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RED`
[INFO] [stdout]  --> src/mohr.rs:2:46
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::colors::{BLUE, GREEN, LIGHT_GRAY, RED};
[INFO] [stdout]   |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::PartialEq`
[INFO] [stdout]  --> src/graph.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::PartialEq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLUE`, `DARK_YELLOW`, and `GRAY`
[INFO] [stdout]  --> src/graph.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::colors::{BLUE, CYAN, DARK_YELLOW, GRAY, LIGHT_GRAY, WHITE, YELLOW};
[INFO] [stdout]   |                     ^^^^        ^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLUE`, `GREEN`, `RED`, and `WHITE`
[INFO] [stdout]  --> src/main.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::colors::{BLUE, GREEN, RED, WHITE};
[INFO] [stdout]   |                     ^^^^  ^^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CENTER_Y`
[INFO] [stdout]   --> src/main.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::config::{CENTER_Y, WINDOW_HEIGHT, WINDOW_WIDTH};
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::function::UnaryFunction`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::function::UnaryFunction;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::renderer::Renderer`
[INFO] [stdout]  --> src/coordinate.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::renderer::Renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]  --> src/function.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread::current;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GREEN` and `RED`
[INFO] [stdout]  --> src/function.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::colors::{GREEN, RED};
[INFO] [stdout]   |                     ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::function::UnaryFunction`
[INFO] [stdout]  --> src/cursor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::function::UnaryFunction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::axis::Axis2D`
[INFO] [stdout]  --> src/sort.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::axis::Axis2D;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RED`
[INFO] [stdout]  --> src/mohr.rs:2:46
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::colors::{BLUE, GREEN, LIGHT_GRAY, RED};
[INFO] [stdout]   |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::PartialEq`
[INFO] [stdout]  --> src/graph.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::PartialEq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLUE`, `DARK_YELLOW`, and `GRAY`
[INFO] [stdout]  --> src/graph.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::colors::{BLUE, CYAN, DARK_YELLOW, GRAY, LIGHT_GRAY, WHITE, YELLOW};
[INFO] [stdout]   |                     ^^^^        ^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/renderer.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut event_pump = sdl.event_pump()?;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/renderer.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut event_pump = sdl.event_pump()?;
[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: `y`
[INFO] [stdout]   --> src/function.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn evaluate(&self, x: f32, y: f32) -> Option<(f32, f32)> {
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/function.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn evaluate(&self, x: f32, y: f32) -> Option<(f32, f32)> {
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/sort.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 _ => {}
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/sort.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 SortType::Insertion => self.stepable_insertion_sort(),
[INFO] [stdout]    |                 ------------------- matches some of the same values
[INFO] [stdout] 77 |                 SortType::Shell => self.stepable_shell_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 78 |                 SortType::Merge => self.stepable_merge_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 79 |                 SortType::Quick => self.stepable_quick_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 80 |                 _ => {}
[INFO] [stdout]    |                 ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elements`
[INFO] [stdout]    --> src/sort.rs:253:30
[INFO] [stdout]     |
[INFO] [stdout] 253 |     fn quick_sort(&mut self, elements: &mut Vec<u32>) {
[INFO] [stdout]     |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/sort.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 _ => {}
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/sort.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 SortType::Insertion => self.stepable_insertion_sort(),
[INFO] [stdout]    |                 ------------------- matches some of the same values
[INFO] [stdout] 77 |                 SortType::Shell => self.stepable_shell_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 78 |                 SortType::Merge => self.stepable_merge_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 79 |                 SortType::Quick => self.stepable_quick_sort(),
[INFO] [stdout]    |                 --------------- matches some of the same values
[INFO] [stdout] 80 |                 _ => {}
[INFO] [stdout]    |                 ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duration`
[INFO] [stdout]  --> src/audio.rs:4:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn play_tone(frequency: f32, duration: Duration) {
[INFO] [stdout]   |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elements`
[INFO] [stdout]    --> src/sort.rs:253:30
[INFO] [stdout]     |
[INFO] [stdout] 253 |     fn quick_sort(&mut self, elements: &mut Vec<u32>) {
[INFO] [stdout]     |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elements`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duration`
[INFO] [stdout]  --> src/audio.rs:4:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn play_tone(frequency: f32, duration: Duration) {
[INFO] [stdout]   |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mohr`
[INFO] [stdout]   --> src/main.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mohr = mohr::MohrsCircle::new([200.0, 100.0, 0.0], [80.0, 20.0, 0.0]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mohr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mohr`
[INFO] [stdout]   --> src/main.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mohr = mohr::MohrsCircle::new([200.0, 100.0, 0.0], [80.0, 20.0, 0.0]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mohr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grapher` (bin "grapher") due to 1 previous error; 19 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grapher` (bin "grapher" test) due to 1 previous error; 19 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a262e55f27e06321b71755afd6a853d4992c02be4a6faa9eb288c18b0ab2bb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a262e55f27e06321b71755afd6a853d4992c02be4a6faa9eb288c18b0ab2bb77", kill_on_drop: false }`
[INFO] [stdout] a262e55f27e06321b71755afd6a853d4992c02be4a6faa9eb288c18b0ab2bb77
