[INFO] cloning repository https://github.com/ksadov/stranger-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ksadov/stranger-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksadov%2Fstranger-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksadov%2Fstranger-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 663abd7994d2c0286609c6a11235ed810a2bc90d
[INFO] checking ksadov/stranger-gen against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksadov%2Fstranger-gen" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ksadov/stranger-gen on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ksadov/stranger-gen
[INFO] finished tweaking git repo https://github.com/ksadov/stranger-gen
[INFO] tweaked toml for git repo https://github.com/ksadov/stranger-gen written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ksadov/stranger-gen 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.13
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.13
[INFO] [stderr]   Downloaded js-sys v0.3.40
[INFO] [stderr]   Downloaded cubic_spline v0.9.2
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.13
[INFO] [stderr]   Downloaded web-sys v0.3.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d9471438d7231e42e38b35ef77afe02dcd09813f9039dc25581be46b4ca1f24
[INFO] running `Command { std: "docker" "start" "-a" "1d9471438d7231e42e38b35ef77afe02dcd09813f9039dc25581be46b4ca1f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9471438d7231e42e38b35ef77afe02dcd09813f9039dc25581be46b4ca1f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9471438d7231e42e38b35ef77afe02dcd09813f9039dc25581be46b4ca1f24", kill_on_drop: false }`
[INFO] [stdout] 1d9471438d7231e42e38b35ef77afe02dcd09813f9039dc25581be46b4ca1f24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8804ef51e86918bde378353cdfe93590f4a4f238f77a264af506e8b87831ff92
[INFO] running `Command { std: "docker" "start" "-a" "8804ef51e86918bde378353cdfe93590f4a4f238f77a264af506e8b87831ff92", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.63
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.63
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking bresenham v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.13
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.63
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking js-sys v0.3.40
[INFO] [stderr]     Checking cubic_spline v0.9.2
[INFO] [stderr]     Checking stranger-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let _ = &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let _ = &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout] 147 | |                sp.core_anchors[2].1,
[INFO] [stdout] 148 | |                sp.palette.body,
[INFO] [stdout] 149 | |                &vec![BG_COLOR],
[INFO] [stdout] 150 | |                LAYER_OVER
[INFO] [stdout] 151 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let _ = &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:154:2
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     &mut canvas.draw_gradient(&core,
[INFO] [stdout] 155 | |                   sp.palette.gradient,
[INFO] [stdout] 156 | |                   sp.palette.body,
[INFO] [stdout] 157 | |                   start,
[INFO] [stdout] 158 | |                   end);
[INFO] [stdout]     | |______________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let _ = &mut canvas.draw_gradient(&core,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:164:6
[INFO] [stdout]     |
[INFO] [stdout] 164 | /         &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout] 165 | |                         x, y, sp.palette.stripe_outline,
[INFO] [stdout] 166 | |                         sp.palette.body, sp.palette.gradient);
[INFO] [stdout]     | |_____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let _ = &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:172:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         &mut canvas.flood_fill(x,
[INFO] [stdout] 173 | |                    y,
[INFO] [stdout] 174 | |                    sp.palette.stripe,
[INFO] [stdout] 175 | |                    &vec![sp.palette.body, sp.palette.gradient],
[INFO] [stdout] 176 | |                    LAYER_OVER
[INFO] [stdout] 177 | |
[INFO] [stdout] 178 | |         );
[INFO] [stdout]     | |_________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let _ = &mut canvas.flood_fill(x,
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let _ = &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 195 |     &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let _ = &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 | /     &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout] 200 | |                sp.palette.sclera,
[INFO] [stdout] 201 | |                &vec![sp.palette.body, sp.palette.stripe,
[INFO] [stdout] 202 | |                  sp.palette.stripe_outline, sp.palette.gradient],
[INFO] [stdout] 203 | |                LAYER_OVER
[INFO] [stdout] 204 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let _ = &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | /     &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout] 208 | |               sp.iris_radius,
[INFO] [stdout] 209 | |               sp.palette.iris);
[INFO] [stdout]     | |______________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let _ = &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 213 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let _ = &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 218 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let _ = &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 | /     &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 222 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let _ = &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | /     &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 226 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let _ = &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:232:2
[INFO] [stdout]     |
[INFO] [stdout] 232 | /     &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout] 233 | |                   mouth_end_x, mouth_end_y,
[INFO] [stdout] 234 | |                   BLACK, LAYER_OVER);
[INFO] [stdout]     | |____________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let _ = &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.13
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.13
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let _ = &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let _ = &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout] 147 | |                sp.core_anchors[2].1,
[INFO] [stdout] 148 | |                sp.palette.body,
[INFO] [stdout] 149 | |                &vec![BG_COLOR],
[INFO] [stdout] 150 | |                LAYER_OVER
[INFO] [stdout] 151 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let _ = &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:154:2
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     &mut canvas.draw_gradient(&core,
[INFO] [stdout] 155 | |                   sp.palette.gradient,
[INFO] [stdout] 156 | |                   sp.palette.body,
[INFO] [stdout] 157 | |                   start,
[INFO] [stdout] 158 | |                   end);
[INFO] [stdout]     | |______________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let _ = &mut canvas.draw_gradient(&core,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:164:6
[INFO] [stdout]     |
[INFO] [stdout] 164 | /         &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout] 165 | |                         x, y, sp.palette.stripe_outline,
[INFO] [stdout] 166 | |                         sp.palette.body, sp.palette.gradient);
[INFO] [stdout]     | |_____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let _ = &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:172:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         &mut canvas.flood_fill(x,
[INFO] [stdout] 173 | |                    y,
[INFO] [stdout] 174 | |                    sp.palette.stripe,
[INFO] [stdout] 175 | |                    &vec![sp.palette.body, sp.palette.gradient],
[INFO] [stdout] 176 | |                    LAYER_OVER
[INFO] [stdout] 177 | |
[INFO] [stdout] 178 | |         );
[INFO] [stdout]     | |_________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let _ = &mut canvas.flood_fill(x,
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let _ = &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 195 |     &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let _ = &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 | /     &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout] 200 | |                sp.palette.sclera,
[INFO] [stdout] 201 | |                &vec![sp.palette.body, sp.palette.stripe,
[INFO] [stdout] 202 | |                  sp.palette.stripe_outline, sp.palette.gradient],
[INFO] [stdout] 203 | |                LAYER_OVER
[INFO] [stdout] 204 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let _ = &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | /     &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout] 208 | |               sp.iris_radius,
[INFO] [stdout] 209 | |               sp.palette.iris);
[INFO] [stdout]     | |______________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let _ = &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 213 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let _ = &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 218 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let _ = &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 | /     &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 222 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let _ = &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | /     &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 226 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let _ = &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:232:2
[INFO] [stdout]     |
[INFO] [stdout] 232 | /     &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout] 233 | |                   mouth_end_x, mouth_end_y,
[INFO] [stdout] 234 | |                   BLACK, LAYER_OVER);
[INFO] [stdout]     | |____________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let _ = &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.67s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.63
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8804ef51e86918bde378353cdfe93590f4a4f238f77a264af506e8b87831ff92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8804ef51e86918bde378353cdfe93590f4a4f238f77a264af506e8b87831ff92", kill_on_drop: false }`
[INFO] [stdout] 8804ef51e86918bde378353cdfe93590f4a4f238f77a264af506e8b87831ff92
[INFO] checking ksadov/stranger-gen against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fksadov%2Fstranger-gen" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ksadov/stranger-gen on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ksadov/stranger-gen
[INFO] finished tweaking git repo https://github.com/ksadov/stranger-gen
[INFO] tweaked toml for git repo https://github.com/ksadov/stranger-gen written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ksadov/stranger-gen 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75448b81c24c0705ec7fc0e939bc60ee8ea00a62587da40dd46d142a72c09b67
[INFO] running `Command { std: "docker" "start" "-a" "75448b81c24c0705ec7fc0e939bc60ee8ea00a62587da40dd46d142a72c09b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75448b81c24c0705ec7fc0e939bc60ee8ea00a62587da40dd46d142a72c09b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75448b81c24c0705ec7fc0e939bc60ee8ea00a62587da40dd46d142a72c09b67", kill_on_drop: false }`
[INFO] [stdout] 75448b81c24c0705ec7fc0e939bc60ee8ea00a62587da40dd46d142a72c09b67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0100b4ffdb1ccdb838dbe026bebd2689fb4e6525261cec7ef1c390d9d9586bc7
[INFO] running `Command { std: "docker" "start" "-a" "0100b4ffdb1ccdb838dbe026bebd2689fb4e6525261cec7ef1c390d9d9586bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.63
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.63
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking bresenham v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.13
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.63
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking js-sys v0.3.40
[INFO] [stderr]     Checking cubic_spline v0.9.2
[INFO] [stderr]     Checking stranger-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let _ = &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let _ = &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout] 147 | |                sp.core_anchors[2].1,
[INFO] [stdout] 148 | |                sp.palette.body,
[INFO] [stdout] 149 | |                &vec![BG_COLOR],
[INFO] [stdout] 150 | |                LAYER_OVER
[INFO] [stdout] 151 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let _ = &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:154:2
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     &mut canvas.draw_gradient(&core,
[INFO] [stdout] 155 | |                   sp.palette.gradient,
[INFO] [stdout] 156 | |                   sp.palette.body,
[INFO] [stdout] 157 | |                   start,
[INFO] [stdout] 158 | |                   end);
[INFO] [stdout]     | |______________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let _ = &mut canvas.draw_gradient(&core,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:164:6
[INFO] [stdout]     |
[INFO] [stdout] 164 | /         &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout] 165 | |                         x, y, sp.palette.stripe_outline,
[INFO] [stdout] 166 | |                         sp.palette.body, sp.palette.gradient);
[INFO] [stdout]     | |_____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let _ = &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:172:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         &mut canvas.flood_fill(x,
[INFO] [stdout] 173 | |                    y,
[INFO] [stdout] 174 | |                    sp.palette.stripe,
[INFO] [stdout] 175 | |                    &vec![sp.palette.body, sp.palette.gradient],
[INFO] [stdout] 176 | |                    LAYER_OVER
[INFO] [stdout] 177 | |
[INFO] [stdout] 178 | |         );
[INFO] [stdout]     | |_________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let _ = &mut canvas.flood_fill(x,
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let _ = &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 195 |     &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let _ = &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 | /     &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout] 200 | |                sp.palette.sclera,
[INFO] [stdout] 201 | |                &vec![sp.palette.body, sp.palette.stripe,
[INFO] [stdout] 202 | |                  sp.palette.stripe_outline, sp.palette.gradient],
[INFO] [stdout] 203 | |                LAYER_OVER
[INFO] [stdout] 204 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let _ = &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | /     &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout] 208 | |               sp.iris_radius,
[INFO] [stdout] 209 | |               sp.palette.iris);
[INFO] [stdout]     | |______________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let _ = &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 213 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let _ = &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 218 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let _ = &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 | /     &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 222 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let _ = &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | /     &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 226 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let _ = &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:232:2
[INFO] [stdout]     |
[INFO] [stdout] 232 | /     &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout] 233 | |                   mouth_end_x, mouth_end_y,
[INFO] [stdout] 234 | |                   BLACK, LAYER_OVER);
[INFO] [stdout]     | |____________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let _ = &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.13
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.13
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let _ = &mut canvas.draw_spline(&dorsal);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let _ = &mut canvas.draw_spline(&ventral);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout] 147 | |                sp.core_anchors[2].1,
[INFO] [stdout] 148 | |                sp.palette.body,
[INFO] [stdout] 149 | |                &vec![BG_COLOR],
[INFO] [stdout] 150 | |                LAYER_OVER
[INFO] [stdout] 151 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let _ = &mut canvas.flood_fill(sp.core_anchors[2].0,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:154:2
[INFO] [stdout]     |
[INFO] [stdout] 154 | /     &mut canvas.draw_gradient(&core,
[INFO] [stdout] 155 | |                   sp.palette.gradient,
[INFO] [stdout] 156 | |                   sp.palette.body,
[INFO] [stdout] 157 | |                   start,
[INFO] [stdout] 158 | |                   end);
[INFO] [stdout]     | |______________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let _ = &mut canvas.draw_gradient(&core,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:164:6
[INFO] [stdout]     |
[INFO] [stdout] 164 | /         &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout] 165 | |                         x, y, sp.palette.stripe_outline,
[INFO] [stdout] 166 | |                         sp.palette.body, sp.palette.gradient);
[INFO] [stdout]     | |_____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let _ = &mut canvas.draw_perpendicular_line(&core, 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:172:6
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         &mut canvas.flood_fill(x,
[INFO] [stdout] 173 | |                    y,
[INFO] [stdout] 174 | |                    sp.palette.stripe,
[INFO] [stdout] 175 | |                    &vec![sp.palette.body, sp.palette.gradient],
[INFO] [stdout] 176 | |                    LAYER_OVER
[INFO] [stdout] 177 | |
[INFO] [stdout] 178 | |         );
[INFO] [stdout]     | |_________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let _ = &mut canvas.flood_fill(x,
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let _ = &mut canvas.draw_spline(&top_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:195:5
[INFO] [stdout]     |
[INFO] [stdout] 195 |     &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let _ = &mut canvas.draw_spline(&bottom_eye);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 | /     &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout] 200 | |                sp.palette.sclera,
[INFO] [stdout] 201 | |                &vec![sp.palette.body, sp.palette.stripe,
[INFO] [stdout] 202 | |                  sp.palette.stripe_outline, sp.palette.gradient],
[INFO] [stdout] 203 | |                LAYER_OVER
[INFO] [stdout] 204 | |     );
[INFO] [stdout]     | |_____^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let _ = &mut canvas.flood_fill(eye_mid_x, eye_mid_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 | /     &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout] 208 | |               sp.iris_radius,
[INFO] [stdout] 209 | |               sp.palette.iris);
[INFO] [stdout]     | |______________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let _ = &mut canvas.draw_iris((eye_mid_x, eye_mid_y),
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 213 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let _ = &mut canvas.draw_leg(leg_start_x, &core, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 218 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |     let _ = &mut canvas.draw_leg(leg2_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 | /     &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 222 | |              sp.leg_width, LAYER_UNDER);
[INFO] [stdout]     | |_______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let _ = &mut canvas.draw_leg(leg3_start_x, &dorsal, FAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:225:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | /     &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout] 226 | |              sp.leg_width, LAYER_OVER);
[INFO] [stdout]     | |______________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |     let _ = &mut canvas.draw_leg(leg4_start_x, &dorsal, NEAR_FOOT_HEIGHT, sp.palette.body,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:232:2
[INFO] [stdout]     |
[INFO] [stdout] 232 | /     &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout] 233 | |                   mouth_end_x, mouth_end_y,
[INFO] [stdout] 234 | |                   BLACK, LAYER_OVER);
[INFO] [stdout]     | |____________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let _ = &mut canvas.draw_line(mouth_start_x, mouth_start_y,
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.55s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.63
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0100b4ffdb1ccdb838dbe026bebd2689fb4e6525261cec7ef1c390d9d9586bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0100b4ffdb1ccdb838dbe026bebd2689fb4e6525261cec7ef1c390d9d9586bc7", kill_on_drop: false }`
[INFO] [stdout] 0100b4ffdb1ccdb838dbe026bebd2689fb4e6525261cec7ef1c390d9d9586bc7