[INFO] cloning repository https://github.com/SirWalross/kinematicsolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SirWalross/kinematicsolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWalross%2Fkinematicsolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWalross%2Fkinematicsolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de595e1a7c8093c59802ba8610ced0b10d724490
[INFO] testing SirWalross/kinematicsolver against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWalross%2Fkinematicsolver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/SirWalross/kinematicsolver
[INFO] finished tweaking git repo https://github.com/SirWalross/kinematicsolver
[INFO] tweaked toml for git repo https://github.com/SirWalross/kinematicsolver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SirWalross/kinematicsolver on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SirWalross/kinematicsolver 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1690ee35ec895a241ec94b8e6d5e163e10117ace85db8621f014e60941c5f9f
[INFO] running `Command { std: "docker" "start" "-a" "d1690ee35ec895a241ec94b8e6d5e163e10117ace85db8621f014e60941c5f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1690ee35ec895a241ec94b8e6d5e163e10117ace85db8621f014e60941c5f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1690ee35ec895a241ec94b8e6d5e163e10117ace85db8621f014e60941c5f9f", kill_on_drop: false }`
[INFO] [stdout] d1690ee35ec895a241ec94b8e6d5e163e10117ace85db8621f014e60941c5f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82ed6ad80d9b40b1d81db7f1ee79173ab89cda51fd985a001b96125ec8e8dfc5
[INFO] running `Command { std: "docker" "start" "-a" "82ed6ad80d9b40b1d81db7f1ee79173ab89cda51fd985a001b96125ec8e8dfc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling winnow v0.5.28
[INFO] [stderr]    Compiling target-lexicon v0.12.12
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling gio v0.18.4
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cfg-expr v0.15.5
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-executor v0.3.29
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.4
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling toml_edit v0.20.2
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling toml v0.8.2
[INFO] [stderr]    Compiling proc-macro-crate v2.0.1
[INFO] [stderr]    Compiling gtk4-macros v0.7.2
[INFO] [stderr]    Compiling glib-macros v0.18.3
[INFO] [stderr]    Compiling system-deps v6.2.0
[INFO] [stderr]    Compiling glib-sys v0.18.1
[INFO] [stderr]    Compiling gobject-sys v0.18.0
[INFO] [stderr]    Compiling gio-sys v0.18.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.18.2
[INFO] [stderr]    Compiling pango-sys v0.18.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.18.0
[INFO] [stderr]    Compiling gdk4-sys v0.7.2
[INFO] [stderr]    Compiling graphene-sys v0.18.1
[INFO] [stderr]    Compiling gsk4-sys v0.7.3
[INFO] [stderr]    Compiling gtk4-sys v0.7.3
[INFO] [stderr]    Compiling glib v0.18.4
[INFO] [stderr]    Compiling cairo-rs v0.18.3
[INFO] [stderr]    Compiling graphene-rs v0.18.1
[INFO] [stderr]    Compiling pango v0.18.3
[INFO] [stderr]    Compiling gdk-pixbuf v0.18.3
[INFO] [stderr]    Compiling gdk4 v0.7.3
[INFO] [stderr]    Compiling gsk4 v0.7.3
[INFO] [stderr]    Compiling gtk4 v0.7.3
[INFO] [stderr]    Compiling kinematicsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Button`
[INFO] [stdout]  --> src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use gtk::{prelude::*, Button, Grid, ToggleButton};
[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 variable: `crank_length`
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let crank_length = length(joints[1], joints[2]);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let _crank_length = length(joints[1], joints[2]);
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `SUPPORT_LINE_MARGIN`
[INFO] [stdout]     |
[INFO] [stdout] 143 -     let crank_length = length(joints[1], joints[2]);
[INFO] [stdout] 143 +     let SUPPORT_LINE_MARGIN = length(joints[1], joints[2]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `area`
[INFO] [stdout]    --> src/main.rs:239:33
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/main.rs:239:48
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[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/main.rs:239:55
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stdout]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     context.save();
[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] 45 |     let _ = context.save();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     context.fill_preserve();
[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] 50 |     let _ = context.fill_preserve();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     context.stroke();
[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] 52 |     let _ = context.stroke();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     context.stroke();
[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] 92 |     let _ = context.stroke();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     context.restore();
[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] 93 |     let _ = context.restore();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     context.save();
[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] 97 |     let _ = context.save();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     context.fill_preserve();
[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] 102 |     let _ = context.fill_preserve();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     context.stroke();
[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] 104 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     context.restore();
[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] 106 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     context.save();
[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] 110 |     let _ = context.save();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     context.stroke();
[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] 116 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     context.restore();
[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] 118 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 |     context.save();
[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] 172 |     let _ = context.save();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         context.stroke();
[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] 198 |         let _ = context.stroke();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     context.stroke();
[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] 203 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     context.stroke();
[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] 211 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 |     context.fill_preserve();
[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] 221 |     let _ = context.fill_preserve();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 223 |     context.stroke();
[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] 223 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 |     context.restore();
[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] 225 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "82ed6ad80d9b40b1d81db7f1ee79173ab89cda51fd985a001b96125ec8e8dfc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ed6ad80d9b40b1d81db7f1ee79173ab89cda51fd985a001b96125ec8e8dfc5", kill_on_drop: false }`
[INFO] [stdout] 82ed6ad80d9b40b1d81db7f1ee79173ab89cda51fd985a001b96125ec8e8dfc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6438d858e7f2c9e3e88afe220f8574e6376547a2808fb4637f9ab59bd3cf8c27
[INFO] running `Command { std: "docker" "start" "-a" "6438d858e7f2c9e3e88afe220f8574e6376547a2808fb4637f9ab59bd3cf8c27", kill_on_drop: false }`
[INFO] [stderr]    Compiling kinematicsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Button`
[INFO] [stdout]  --> src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use gtk::{prelude::*, Button, Grid, ToggleButton};
[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 variable: `crank_length`
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let crank_length = length(joints[1], joints[2]);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let _crank_length = length(joints[1], joints[2]);
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `SUPPORT_LINE_MARGIN`
[INFO] [stdout]     |
[INFO] [stdout] 143 -     let crank_length = length(joints[1], joints[2]);
[INFO] [stdout] 143 +     let SUPPORT_LINE_MARGIN = length(joints[1], joints[2]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `area`
[INFO] [stdout]    --> src/main.rs:239:33
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/main.rs:239:48
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[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/main.rs:239:55
[INFO] [stdout]     |
[INFO] [stdout] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stdout]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     context.save();
[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] 45 |     let _ = context.save();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     context.fill_preserve();
[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] 50 |     let _ = context.fill_preserve();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     context.stroke();
[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] 52 |     let _ = context.stroke();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     context.stroke();
[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] 92 |     let _ = context.stroke();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     context.restore();
[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] 93 |     let _ = context.restore();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     context.save();
[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] 97 |     let _ = context.save();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     context.fill_preserve();
[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] 102 |     let _ = context.fill_preserve();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     context.stroke();
[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] 104 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     context.restore();
[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] 106 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     context.save();
[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] 110 |     let _ = context.save();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     context.stroke();
[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] 116 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     context.restore();
[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] 118 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 |     context.save();
[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] 172 |     let _ = context.save();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         context.stroke();
[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] 198 |         let _ = context.stroke();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     context.stroke();
[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] 203 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     context.stroke();
[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] 211 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 |     context.fill_preserve();
[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] 221 |     let _ = context.fill_preserve();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 223 |     context.stroke();
[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] 223 |     let _ = context.stroke();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 |     context.restore();
[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] 225 |     let _ = context.restore();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "6438d858e7f2c9e3e88afe220f8574e6376547a2808fb4637f9ab59bd3cf8c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6438d858e7f2c9e3e88afe220f8574e6376547a2808fb4637f9ab59bd3cf8c27", kill_on_drop: false }`
[INFO] [stdout] 6438d858e7f2c9e3e88afe220f8574e6376547a2808fb4637f9ab59bd3cf8c27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96b147f5b4ca4f9e4bb7e0026246e4a745ef1d027c96f8889b1e99d1a7bd5067
[INFO] running `Command { std: "docker" "start" "-a" "96b147f5b4ca4f9e4bb7e0026246e4a745ef1d027c96f8889b1e99d1a7bd5067", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Button`
[INFO] [stderr]  --> src/main.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use gtk::{prelude::*, Button, Grid, ToggleButton};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `crank_length`
[INFO] [stderr]    --> src/main.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let crank_length = length(joints[1], joints[2]);
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let _crank_length = length(joints[1], joints[2]);
[INFO] [stderr]     |         +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `SUPPORT_LINE_MARGIN`
[INFO] [stderr]     |
[INFO] [stderr] 143 -     let crank_length = length(joints[1], joints[2]);
[INFO] [stderr] 143 +     let SUPPORT_LINE_MARGIN = length(joints[1], joints[2]);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `area`
[INFO] [stderr]    --> src/main.rs:239:33
[INFO] [stderr]     |
[INFO] [stderr] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stderr]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]    --> src/main.rs:239:48
[INFO] [stderr]     |
[INFO] [stderr] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stderr]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]    --> src/main.rs:239:55
[INFO] [stderr]     |
[INFO] [stderr] 239 |     drawing_area.set_draw_func(|area, context, width, height| {
[INFO] [stderr]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     context.save();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let _ = context.save();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     context.fill_preserve();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = context.fill_preserve();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     context.stroke();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let _ = context.stroke();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     context.stroke();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let _ = context.stroke();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     context.restore();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let _ = context.restore();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     context.save();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let _ = context.save();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     context.fill_preserve();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let _ = context.fill_preserve();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     context.stroke();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let _ = context.stroke();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     context.restore();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let _ = context.restore();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     context.save();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let _ = context.save();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     context.stroke();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let _ = context.stroke();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     context.restore();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 118 |     let _ = context.restore();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     context.save();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 172 |     let _ = context.save();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         context.stroke();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 198 |         let _ = context.stroke();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:203:5
[INFO] [stderr]     |
[INFO] [stderr] 203 |     context.stroke();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let _ = context.stroke();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 211 |     context.stroke();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 211 |     let _ = context.stroke();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:221:5
[INFO] [stderr]     |
[INFO] [stderr] 221 |     context.fill_preserve();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 221 |     let _ = context.fill_preserve();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 |     context.stroke();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 223 |     let _ = context.stroke();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:225:5
[INFO] [stderr]     |
[INFO] [stderr] 225 |     context.restore();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 225 |     let _ = context.restore();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `kinematicsolver` (bin "kinematicsolver" test) generated 24 warnings (run `cargo fix --bin "kinematicsolver" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/kinematicsolver-5963b136c7de0c11)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "96b147f5b4ca4f9e4bb7e0026246e4a745ef1d027c96f8889b1e99d1a7bd5067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b147f5b4ca4f9e4bb7e0026246e4a745ef1d027c96f8889b1e99d1a7bd5067", kill_on_drop: false }`
[INFO] [stdout] 96b147f5b4ca4f9e4bb7e0026246e4a745ef1d027c96f8889b1e99d1a7bd5067