[INFO] cloning repository https://github.com/dark-canvas/hfield
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dark-canvas/hfield" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-canvas%2Fhfield", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-canvas%2Fhfield'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 325c6c17772930fa9326d09862633613718ca30c
[INFO] checking dark-canvas/hfield against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-canvas%2Fhfield" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dark-canvas/hfield
[INFO] finished tweaking git repo https://github.com/dark-canvas/hfield
[INFO] tweaked toml for git repo https://github.com/dark-canvas/hfield written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dark-canvas/hfield 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/dark-canvas/hfield 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/dark-canvas/trigr.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded half v2.2.0
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9046b2812fd6e8dde200301fed9316d65ab198aae575f9ddf30d3c2c24db95bc
[INFO] running `Command { std: "docker" "start" "-a" "9046b2812fd6e8dde200301fed9316d65ab198aae575f9ddf30d3c2c24db95bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9046b2812fd6e8dde200301fed9316d65ab198aae575f9ddf30d3c2c24db95bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9046b2812fd6e8dde200301fed9316d65ab198aae575f9ddf30d3c2c24db95bc", kill_on_drop: false }`
[INFO] [stdout] 9046b2812fd6e8dde200301fed9316d65ab198aae575f9ddf30d3c2c24db95bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bec265882bf0707f92f451ce4a1525e113e208049382a65ff0fb46dc05c7047d
[INFO] running `Command { std: "docker" "start" "-a" "bec265882bf0707f92f451ce4a1525e113e208049382a65ff0fb46dc05c7047d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking half v2.2.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking trigr v0.1.0 (https://github.com/dark-canvas/trigr.git#29b946b1)
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking exr v1.5.2
[INFO] [stderr]     Checking hfield v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::sys::SDL_HINT_RENDER_LOGICAL_SIZE_MODE`
[INFO] [stdout]   --> src/hfield.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sdl2::sys::SDL_HINT_RENDER_LOGICAL_SIZE_MODE;
[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: `WIN_HEIGHT`
[INFO] [stdout]   --> src/hfield.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::{pcx::Pcx, WIN_HEIGHT, arc_helper::ArcHelper};
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]   --> src/hfield.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::vec;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 |         self.pos.x += (self.speed*self.sine[look_at]);
[INFO] [stdout]     |                       ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 211 -         self.pos.x += (self.speed*self.sine[look_at]);
[INFO] [stdout] 211 +         self.pos.x += self.speed*self.sine[look_at];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:212:23
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.pos.y += (self.speed*self.cosine[look_at]);
[INFO] [stdout]     |                       ^                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 212 -         self.pos.y += (self.speed*self.cosine[look_at]);
[INFO] [stdout] 212 +         self.pos.y += self.speed*self.cosine[look_at];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/hfield.rs:459:18
[INFO] [stdout]     |
[INFO] [stdout] 459 |         for x in (0..ebuf.len()) {
[INFO] [stdout]     |                  ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 459 -         for x in (0..ebuf.len()) {
[INFO] [stdout] 459 +         for x in 0..ebuf.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/hfield.rs:484:18
[INFO] [stdout]     |
[INFO] [stdout] 484 |         for x in (0..tbuf.len()) {
[INFO] [stdout]     |                  ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 484 -         for x in (0..tbuf.len()) {
[INFO] [stdout] 484 +         for x in 0..tbuf.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:555:34
[INFO] [stdout]     |
[INFO] [stdout] 555 |                 let mut last_x = (radius as f64*sine_cosine_table.sine_si(last_index));
[INFO] [stdout]     |                                  ^                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 555 -                 let mut last_x = (radius as f64*sine_cosine_table.sine_si(last_index));
[INFO] [stdout] 555 +                 let mut last_x = radius as f64*sine_cosine_table.sine_si(last_index);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:556:34
[INFO] [stdout]     |
[INFO] [stdout] 556 |                 let mut last_y = (radius as f64*sine_cosine_table.cosine_si(last_index));
[INFO] [stdout]     |                                  ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 556 -                 let mut last_y = (radius as f64*sine_cosine_table.cosine_si(last_index));
[INFO] [stdout] 556 +                 let mut last_y = radius as f64*sine_cosine_table.cosine_si(last_index);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:562:29
[INFO] [stdout]     |
[INFO] [stdout] 562 |                     let x = (radius as f64*sine_cosine_table.sine(angle));
[INFO] [stdout]     |                             ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 562 -                     let x = (radius as f64*sine_cosine_table.sine(angle));
[INFO] [stdout] 562 +                     let x = radius as f64*sine_cosine_table.sine(angle);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:563:29
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let y = (radius as f64*sine_cosine_table.cosine(angle));
[INFO] [stdout]     |                             ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 563 -                     let y = (radius as f64*sine_cosine_table.cosine(angle));
[INFO] [stdout] 563 +                     let y = radius as f64*sine_cosine_table.cosine(angle);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::sys::SDL_HINT_RENDER_LOGICAL_SIZE_MODE`
[INFO] [stdout]   --> src/hfield.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sdl2::sys::SDL_HINT_RENDER_LOGICAL_SIZE_MODE;
[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: `WIN_HEIGHT`
[INFO] [stdout]   --> src/hfield.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::{pcx::Pcx, WIN_HEIGHT, arc_helper::ArcHelper};
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]   --> src/hfield.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::vec;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 |         self.pos.x += (self.speed*self.sine[look_at]);
[INFO] [stdout]     |                       ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 211 -         self.pos.x += (self.speed*self.sine[look_at]);
[INFO] [stdout] 211 +         self.pos.x += self.speed*self.sine[look_at];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:212:23
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.pos.y += (self.speed*self.cosine[look_at]);
[INFO] [stdout]     |                       ^                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 212 -         self.pos.y += (self.speed*self.cosine[look_at]);
[INFO] [stdout] 212 +         self.pos.y += self.speed*self.cosine[look_at];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/hfield.rs:459:18
[INFO] [stdout]     |
[INFO] [stdout] 459 |         for x in (0..ebuf.len()) {
[INFO] [stdout]     |                  ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 459 -         for x in (0..ebuf.len()) {
[INFO] [stdout] 459 +         for x in 0..ebuf.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/hfield.rs:484:18
[INFO] [stdout]     |
[INFO] [stdout] 484 |         for x in (0..tbuf.len()) {
[INFO] [stdout]     |                  ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 484 -         for x in (0..tbuf.len()) {
[INFO] [stdout] 484 +         for x in 0..tbuf.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:555:34
[INFO] [stdout]     |
[INFO] [stdout] 555 |                 let mut last_x = (radius as f64*sine_cosine_table.sine_si(last_index));
[INFO] [stdout]     |                                  ^                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 555 -                 let mut last_x = (radius as f64*sine_cosine_table.sine_si(last_index));
[INFO] [stdout] 555 +                 let mut last_x = radius as f64*sine_cosine_table.sine_si(last_index);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:556:34
[INFO] [stdout]     |
[INFO] [stdout] 556 |                 let mut last_y = (radius as f64*sine_cosine_table.cosine_si(last_index));
[INFO] [stdout]     |                                  ^                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 556 -                 let mut last_y = (radius as f64*sine_cosine_table.cosine_si(last_index));
[INFO] [stdout] 556 +                 let mut last_y = radius as f64*sine_cosine_table.cosine_si(last_index);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:562:29
[INFO] [stdout]     |
[INFO] [stdout] 562 |                     let x = (radius as f64*sine_cosine_table.sine(angle));
[INFO] [stdout]     |                             ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 562 -                     let x = (radius as f64*sine_cosine_table.sine(angle));
[INFO] [stdout] 562 +                     let x = radius as f64*sine_cosine_table.sine(angle);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/hfield.rs:563:29
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     let y = (radius as f64*sine_cosine_table.cosine(angle));
[INFO] [stdout]     |                             ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 563 -                     let y = (radius as f64*sine_cosine_table.cosine(angle));
[INFO] [stdout] 563 +                     let y = radius as f64*sine_cosine_table.cosine(angle);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hfield.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |         let mut hx_step = (tx2-tx1)/(width as f64);
[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/hfield.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut hy_step = (ty2-ty1)/(width as f64);
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hfield.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |             let mut temp = tbuf;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hx_step`
[INFO] [stdout]    --> src/hfield.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |         let mut hx_step = (tx2-tx1)/(width as f64);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hx_step`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hy_step`
[INFO] [stdout]    --> src/hfield.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut hy_step = (ty2-ty1)/(width as f64);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hy_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/hfield.rs:285:13
[INFO] [stdout]     |
[INFO] [stdout] 285 |         for c in 0..width {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `red`
[INFO] [stdout]    --> src/hfield.rs:395:17
[INFO] [stdout]     |
[INFO] [stdout] 395 |             let red : Colour = Colour{ r: 255, g: 0, b: 0 };
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         tx2 += tx2_step;   // increase right side
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:386:9
[INFO] [stdout]     |
[INFO] [stdout] 386 |         tx2 = view.far_right.x; 
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:444:13
[INFO] [stdout]     |
[INFO] [stdout] 444 |             tx2 += tx2_step;   // increase right side
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:331:13
[INFO] [stdout]     |
[INFO] [stdout] 331 |             tx2 += tx2_step;    // increase right side
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |         ty2 += ty2_step;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         ty2 = view.far_right.y;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:445:13
[INFO] [stdout]     |
[INFO] [stdout] 445 |             ty2 += ty2_step;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |             ty2 += ty2_step;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/hfield.rs:458:43
[INFO] [stdout]     |
[INFO] [stdout] 458 |     fn draw_sky(&self, buffer: &mut [u8], width: usize, bytes_per_line: usize, ebuf: &Vec<ElevationPoint>) {
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/hfield.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |                 for i in 0..length {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/hfield.rs:482:49
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn vertical_lines(&self, buffer: &mut [u8], width: usize, height: usize, bytes_per_line: usize,
[INFO] [stdout]     |                                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/hfield.rs:482:63
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn vertical_lines(&self, buffer: &mut [u8], width: usize, height: usize, bytes_per_line: usize,
[INFO] [stdout]     |                                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/hfield.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |                 for i in 0..length {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `angle_int`
[INFO] [stdout]    --> src/hfield.rs:560:25
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     let angle_int = angle as usize;
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_angle_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/arc_helper.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut ideal_circle_index = start_index as f64;
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/arc_helper.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut circle_index = start_index;
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ideal_circle_index`
[INFO] [stdout]   --> src/arc_helper.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut ideal_circle_index = start_index as f64;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ideal_circle_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `circle_index`
[INFO] [stdout]   --> src/arc_helper.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut circle_index = start_index;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_circle_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PcxHeader` is never constructed
[INFO] [stdout]   --> src/pcx.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct PcxHeader  {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Colour` is never constructed
[INFO] [stdout]   --> src/pcx.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Colour {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pcx.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Colour {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 40 |     fn new() -> Colour {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pcx` is never constructed
[INFO] [stdout]   --> src/pcx.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct Pcx {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/pcx.rs:53:8
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl Pcx {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout]  53 |     fn read_header(file: &mut File) -> PcxHeader {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     fn read_image(file: &mut File, header: &PcxHeader) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |     fn read_palette(file: &mut File) -> [Colour; 256] {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  98 |     pub fn get_header(&self) -> &PcxHeader {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn get_image(&self) -> &Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_palette(&self) -> &[Colour; 256] {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn new(filename: &str) -> Pcx {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_byte` is never used
[INFO] [stdout]    --> src/pcx.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn read_byte<R: Read>(reader: R) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sine_cosine_table` is never read
[INFO] [stdout]   --> src/hfield.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct HField {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 65 |     sine_cosine_table: SineCosineTable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/hfield.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl Offset64 {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 90 |     pub fn new() -> Offset64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_from_pcx` is never used
[INFO] [stdout]    --> src/hfield.rs:502:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl HField {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 502 |     pub fn new_from_pcx(hmap: &str, cmap: &str) -> HField {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hfield.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |         let mut hx_step = (tx2-tx1)/(width as f64);
[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/hfield.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut hy_step = (ty2-ty1)/(width as f64);
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hfield.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |             let mut temp = tbuf;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hx_step`
[INFO] [stdout]    --> src/hfield.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |         let mut hx_step = (tx2-tx1)/(width as f64);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hx_step`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hy_step`
[INFO] [stdout]    --> src/hfield.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut hy_step = (ty2-ty1)/(width as f64);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hy_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/hfield.rs:285:13
[INFO] [stdout]     |
[INFO] [stdout] 285 |         for c in 0..width {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `red`
[INFO] [stdout]    --> src/hfield.rs:395:17
[INFO] [stdout]     |
[INFO] [stdout] 395 |             let red : Colour = Colour{ r: 255, g: 0, b: 0 };
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         tx2 += tx2_step;   // increase right side
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:386:9
[INFO] [stdout]     |
[INFO] [stdout] 386 |         tx2 = view.far_right.x; 
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:444:13
[INFO] [stdout]     |
[INFO] [stdout] 444 |             tx2 += tx2_step;   // increase right side
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tx2` is never read
[INFO] [stdout]    --> src/hfield.rs:331:13
[INFO] [stdout]     |
[INFO] [stdout] 331 |             tx2 += tx2_step;    // increase right side
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |         ty2 += ty2_step;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         ty2 = view.far_right.y;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:445:13
[INFO] [stdout]     |
[INFO] [stdout] 445 |             ty2 += ty2_step;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ty2` is never read
[INFO] [stdout]    --> src/hfield.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |             ty2 += ty2_step;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/hfield.rs:458:43
[INFO] [stdout]     |
[INFO] [stdout] 458 |     fn draw_sky(&self, buffer: &mut [u8], width: usize, bytes_per_line: usize, ebuf: &Vec<ElevationPoint>) {
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/hfield.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |                 for i in 0..length {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/hfield.rs:482:49
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn vertical_lines(&self, buffer: &mut [u8], width: usize, height: usize, bytes_per_line: usize,
[INFO] [stdout]     |                                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/hfield.rs:482:63
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn vertical_lines(&self, buffer: &mut [u8], width: usize, height: usize, bytes_per_line: usize,
[INFO] [stdout]     |                                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/hfield.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |                 for i in 0..length {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `angle_int`
[INFO] [stdout]    --> src/hfield.rs:560:25
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     let angle_int = angle as usize;
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_angle_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/arc_helper.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut ideal_circle_index = start_index as f64;
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/arc_helper.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut circle_index = start_index;
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ideal_circle_index`
[INFO] [stdout]   --> src/arc_helper.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut ideal_circle_index = start_index as f64;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ideal_circle_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `circle_index`
[INFO] [stdout]   --> src/arc_helper.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut circle_index = start_index;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_circle_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     event_loop(&mut land);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let _ = event_loop(&mut land);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PcxHeader` is never constructed
[INFO] [stdout]   --> src/pcx.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct PcxHeader  {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Colour` is never constructed
[INFO] [stdout]   --> src/pcx.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Colour {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pcx.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Colour {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 40 |     fn new() -> Colour {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pcx` is never constructed
[INFO] [stdout]   --> src/pcx.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct Pcx {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/pcx.rs:53:8
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl Pcx {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout]  53 |     fn read_header(file: &mut File) -> PcxHeader {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     fn read_image(file: &mut File, header: &PcxHeader) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |     fn read_palette(file: &mut File) -> [Colour; 256] {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  98 |     pub fn get_header(&self) -> &PcxHeader {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn get_image(&self) -> &Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_palette(&self) -> &[Colour; 256] {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn new(filename: &str) -> Pcx {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_byte` is never used
[INFO] [stdout]    --> src/pcx.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn read_byte<R: Read>(reader: R) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sine_cosine_table` is never read
[INFO] [stdout]   --> src/hfield.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct HField {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 65 |     sine_cosine_table: SineCosineTable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/hfield.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl Offset64 {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 90 |     pub fn new() -> Offset64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_from_pcx` is never used
[INFO] [stdout]    --> src/hfield.rs:502:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl HField {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 502 |     pub fn new_from_pcx(hmap: &str, cmap: &str) -> HField {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     event_loop(&mut land);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let _ = event_loop(&mut land);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.86s
[INFO] running `Command { std: "docker" "inspect" "bec265882bf0707f92f451ce4a1525e113e208049382a65ff0fb46dc05c7047d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec265882bf0707f92f451ce4a1525e113e208049382a65ff0fb46dc05c7047d", kill_on_drop: false }`
[INFO] [stdout] bec265882bf0707f92f451ce4a1525e113e208049382a65ff0fb46dc05c7047d
