[INFO] cloning repository https://github.com/EdBuilds/holobone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EdBuilds/holobone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdBuilds%2Fholobone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdBuilds%2Fholobone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 606106700829ce24d2ce9febd20dd203bfdf65e5
[INFO] checking EdBuilds/holobone against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdBuilds%2Fholobone" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EdBuilds/holobone on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EdBuilds/holobone
[INFO] finished tweaking git repo https://github.com/EdBuilds/holobone
[INFO] tweaked toml for git repo https://github.com/EdBuilds/holobone written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/EdBuilds/holobone already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08f2d1275c50196d43725357c88e031f71e359db5ebe1e1a4be4bd72ce426587
[INFO] running `Command { std: "docker" "start" "-a" "08f2d1275c50196d43725357c88e031f71e359db5ebe1e1a4be4bd72ce426587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08f2d1275c50196d43725357c88e031f71e359db5ebe1e1a4be4bd72ce426587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f2d1275c50196d43725357c88e031f71e359db5ebe1e1a4be4bd72ce426587", kill_on_drop: false }`
[INFO] [stdout] 08f2d1275c50196d43725357c88e031f71e359db5ebe1e1a4be4bd72ce426587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4724c92b8d8e143ecaf356c0db8e65a8dee66658b91a12831c8ad32f4daceae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c4724c92b8d8e143ecaf356c0db8e65a8dee66658b91a12831c8ad32f4daceae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking xmlparser v0.13.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]     Checking lyon_geom v0.15.0
[INFO] [stderr]     Checking holobone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `xmlparser::Token::Attribute`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use xmlparser::Token::Attribute;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PathParser`
[INFO] [stdout]  --> src/tracer.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |    use svgtypes::{PathParser};
[INFO] [stdout]   |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `QuadraticBezierSegment`
[INFO] [stdout]  --> src/tracer.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |    use lyon_geom::{QuadraticBezierSegment, CubicBezierSegment, Arc, SvgArc, ArcFlags};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/tracer.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |       let x_disp = (x2 - x1);
[INFO] [stdout]     |                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/tracer.rs:132:20
[INFO] [stdout]     |
[INFO] [stdout] 132 |       let y_disp = (y2 - y1);
[INFO] [stdout]     |                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |         if (point.on) {
[INFO] [stdout]     |            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |         if (point.on) {
[INFO] [stdout]     |            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `xmlparser::Token::Attribute`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use xmlparser::Token::Attribute;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PathParser`
[INFO] [stdout]  --> src/tracer.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |    use svgtypes::{PathParser};
[INFO] [stdout]   |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `QuadraticBezierSegment`
[INFO] [stdout]  --> src/tracer.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |    use lyon_geom::{QuadraticBezierSegment, CubicBezierSegment, Arc, SvgArc, ArcFlags};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/tracer.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |       let x_disp = (x2 - x1);
[INFO] [stdout]     |                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/tracer.rs:132:20
[INFO] [stdout]     |
[INFO] [stdout] 132 |       let y_disp = (y2 - y1);
[INFO] [stdout]     |                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |         if (point.on) {
[INFO] [stdout]     |            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |         if (point.on) {
[INFO] [stdout]     |            ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     Err(error) => {}
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefix`
[INFO] [stdout]   --> src/main.rs:65:58
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   xmlparser::Token::Attribute {prefix, local, value, span} => {
[INFO] [stdout]    |                                                    ^^^^^^ help: try ignoring the field: `prefix: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/main.rs:65:80
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   xmlparser::Token::Attribute {prefix, local, value, span} => {
[INFO] [stdout]    |                                                                          ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `line_to_initial` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 | ...                   let mut line_to_initial = PathSegment::LineTo { abs: true, x: 0.0, y: 0.0};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_line_to_initial` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | ...                   Err(error) => {}
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_to_initial` is never read
[INFO] [stdout]   --> src/main.rs:78:57
[INFO] [stdout]    |
[INFO] [stdout] 78 | ...                   line_to_initial = PathSegment::LineTo { abs, x, y };
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs`
[INFO] [stdout]   --> src/main.rs:81:78
[INFO] [stdout]    |
[INFO] [stdout] 81 | ...                   PathSegment::ClosePath { abs} => {
[INFO] [stdout]    |                                                ^^^ help: try ignoring the field: `abs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_quadrartic_ctrl_point`
[INFO] [stdout]   --> src/tracer.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let mut last_quadrartic_ctrl_point:Point2D<f64, UnknownUnit> = Point2D {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_quadrartic_ctrl_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs`
[INFO] [stdout]   --> src/tracer.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &PathSegment::ClosePath { abs } => {
[INFO] [stdout]    |                                       ^^^ help: try ignoring the field: `abs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_dev`
[INFO] [stdout]   --> src/tracer.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 |                           max_dev: &f64,
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_dev`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_acc`
[INFO] [stdout]   --> src/tracer.rs:21:27
[INFO] [stdout]    |
[INFO] [stdout] 21 |                           max_acc: &f64,
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_acc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]    --> src/tracer.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 |       for step in 0..times_fit {
[INFO] [stdout]     |           ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     Err(error) => {}
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefix`
[INFO] [stdout]   --> src/main.rs:65:58
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   xmlparser::Token::Attribute {prefix, local, value, span} => {
[INFO] [stdout]    |                                                    ^^^^^^ help: try ignoring the field: `prefix: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/main.rs:65:80
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   xmlparser::Token::Attribute {prefix, local, value, span} => {
[INFO] [stdout]    |                                                                          ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `line_to_initial` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 | ...                   let mut line_to_initial = PathSegment::LineTo { abs: true, x: 0.0, y: 0.0};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_line_to_initial` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | ...                   Err(error) => {}
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_to_initial` is never read
[INFO] [stdout]   --> src/main.rs:78:57
[INFO] [stdout]    |
[INFO] [stdout] 78 | ...                   line_to_initial = PathSegment::LineTo { abs, x, y };
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs`
[INFO] [stdout]   --> src/main.rs:81:78
[INFO] [stdout]    |
[INFO] [stdout] 81 | ...                   PathSegment::ClosePath { abs} => {
[INFO] [stdout]    |                                                ^^^ help: try ignoring the field: `abs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_quadrartic_ctrl_point`
[INFO] [stdout]   --> src/tracer.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let mut last_quadrartic_ctrl_point:Point2D<f64, UnknownUnit> = Point2D {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_quadrartic_ctrl_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs`
[INFO] [stdout]   --> src/tracer.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &PathSegment::ClosePath { abs } => {
[INFO] [stdout]    |                                       ^^^ help: try ignoring the field: `abs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_dev`
[INFO] [stdout]   --> src/tracer.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 |                           max_dev: &f64,
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_dev`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_acc`
[INFO] [stdout]   --> src/tracer.rs:21:27
[INFO] [stdout]    |
[INFO] [stdout] 21 |                           max_acc: &f64,
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_acc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]    --> src/tracer.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 |       for step in 0..times_fit {
[INFO] [stdout]     |           ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tracer.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |       let mut starting_point: LaserPoint = LaserPoint {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/tracer.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let mut last_quadrartic_ctrl_point:Point2D<f64, UnknownUnit> = Point2D {
[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/tracer.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 let mut end_x = x;
[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/tracer.rs:58:20
[INFO] [stdout]    |
[INFO] [stdout] 58 |                let mut end_y = y;
[INFO] [stdout]    |                    ----^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tracer.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |       let mut starting_point: LaserPoint = LaserPoint {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/tracer.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let mut last_quadrartic_ctrl_point:Point2D<f64, UnknownUnit> = Point2D {
[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/tracer.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 let mut end_x = x;
[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/tracer.rs:58:20
[INFO] [stdout]    |
[INFO] [stdout] 58 |                let mut end_y = y;
[INFO] [stdout]    |                    ----^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.60s
[INFO] running `Command { std: "docker" "inspect" "c4724c92b8d8e143ecaf356c0db8e65a8dee66658b91a12831c8ad32f4daceae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4724c92b8d8e143ecaf356c0db8e65a8dee66658b91a12831c8ad32f4daceae", kill_on_drop: false }`
[INFO] [stdout] c4724c92b8d8e143ecaf356c0db8e65a8dee66658b91a12831c8ad32f4daceae
