[INFO] cloning repository https://github.com/Matz-Mp4/turtle-graphics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Matz-Mp4/turtle-graphics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2Fturtle-graphics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2Fturtle-graphics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a120024cc5404a93d4df5da33015b4ead493e0ac
[INFO] testing Matz-Mp4/turtle-graphics against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatz-Mp4%2Fturtle-graphics" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Matz-Mp4/turtle-graphics
[INFO] finished tweaking git repo https://github.com/Matz-Mp4/turtle-graphics
[INFO] tweaked toml for git repo https://github.com/Matz-Mp4/turtle-graphics written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Matz-Mp4/turtle-graphics on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Matz-Mp4/turtle-graphics 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" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fb1eb5fa75172668fe445b44a68e9802f3ea9b8586bddee6e4c13cdefe2c582
[INFO] running `Command { std: "docker" "start" "-a" "6fb1eb5fa75172668fe445b44a68e9802f3ea9b8586bddee6e4c13cdefe2c582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb1eb5fa75172668fe445b44a68e9802f3ea9b8586bddee6e4c13cdefe2c582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb1eb5fa75172668fe445b44a68e9802f3ea9b8586bddee6e4c13cdefe2c582", kill_on_drop: false }`
[INFO] [stdout] 6fb1eb5fa75172668fe445b44a68e9802f3ea9b8586bddee6e4c13cdefe2c582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92f88158fc4c6d18109a655754b0f6a130d240a31d18014d719686ce4d699469
[INFO] running `Command { std: "docker" "start" "-a" "92f88158fc4c6d18109a655754b0f6a130d240a31d18014d719686ce4d699469", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rustix v0.38.19
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling minifb v0.25.0
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling tempfile v3.8.0
[INFO] [stderr]    Compiling colored v2.0.4
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling turtle-graphics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/tuple/tuple2.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{real::Real, One, Zero};
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsMut`, `AsRef`, and `From`
[INFO] [stdout]  --> src/tuple/tuple2.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     convert::{AsMut, AsRef, From},
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                      ----^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                               ----^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:42
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                                          ----^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLACK`
[INFO] [stdout]  --> src/main.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | use turtle_graphics::{Canvas, Color, BLACK, WHITE};
[INFO] [stdout]   |                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `triangular_bump` is never used
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn triangular_bump(turtle: &mut TurtleLogo<f64>, color: Color, canvas: &mut WindowCanvas) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.65s
[INFO] running `Command { std: "docker" "inspect" "92f88158fc4c6d18109a655754b0f6a130d240a31d18014d719686ce4d699469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f88158fc4c6d18109a655754b0f6a130d240a31d18014d719686ce4d699469", kill_on_drop: false }`
[INFO] [stdout] 92f88158fc4c6d18109a655754b0f6a130d240a31d18014d719686ce4d699469
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f6c4c3b584238d6fe1a398141430bb269bbb766f2eee189a7b0546f2b57e25a
[INFO] running `Command { std: "docker" "start" "-a" "3f6c4c3b584238d6fe1a398141430bb269bbb766f2eee189a7b0546f2b57e25a", kill_on_drop: false }`
[INFO] [stderr]    Compiling turtle-graphics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/tuple/tuple2.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{real::Real, One, Zero};
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsMut`, `AsRef`, and `From`
[INFO] [stdout]  --> src/tuple/tuple2.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     convert::{AsMut, AsRef, From},
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                      ----^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                               ----^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:42
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                                          ----^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLACK`
[INFO] [stdout]  --> examples/triangular_bump.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | use turtle_graphics::{Canvas, Color, BLACK, WHITE};
[INFO] [stdout]   |                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLACK`
[INFO] [stdout]  --> examples/sierpinski.rs:3:51
[INFO] [stdout]   |
[INFO] [stdout] 3 | use turtle_graphics::{Canvas, Color, ImageCanvas, BLACK, WHITE};
[INFO] [stdout]   |                                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `triangular_bump` is never used
[INFO] [stdout]  --> examples/triangular_bump.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn triangular_bump(turtle: &mut TurtleLogo<f64>, color: Color, canvas: &mut WindowCanvas) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WindowCanvas`
[INFO] [stdout]  --> examples/sierpinski.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | use turtle_graphics::{TurtleLogo, WindowCanvas};
[INFO] [stdout]   |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/tuple/tuple2.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{real::Real, One, Zero};
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsMut`, `AsRef`, and `From`
[INFO] [stdout]  --> src/tuple/tuple2.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     convert::{AsMut, AsRef, From},
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/sierpinski.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     canvas.convert_to_ppm("pictures/", "sierpinski.ppm");
[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] 42 |     let _ = canvas.convert_to_ppm("pictures/", "sierpinski.ppm");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `turtle` is never read
[INFO] [stdout]   --> examples/spiral-star.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     turtle = turtle.spin(19, -PI / 8.0, &mut scale);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLACK`
[INFO] [stdout]  --> src/main.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | use turtle_graphics::{Canvas, Color, BLACK, WHITE};
[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 `Result` that must be used
[INFO] [stdout]   --> examples/spiral-star.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     canvas.convert_to_ppm("Pictures/", "SpiralStar.ppm");
[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] 30 |     let _ = canvas.convert_to_ppm("Pictures/", "SpiralStar.ppm");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                      ----^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                               ----^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/canvas/image.rs:31:42
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stdout]    |                                          ----^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `triangular_bump` is never used
[INFO] [stdout]  --> src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn triangular_bump(turtle: &mut TurtleLogo<f64>, color: Color, canvas: &mut WindowCanvas) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "3f6c4c3b584238d6fe1a398141430bb269bbb766f2eee189a7b0546f2b57e25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f6c4c3b584238d6fe1a398141430bb269bbb766f2eee189a7b0546f2b57e25a", kill_on_drop: false }`
[INFO] [stdout] 3f6c4c3b584238d6fe1a398141430bb269bbb766f2eee189a7b0546f2b57e25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 936e6ce223cf1bd4f110dddaa65076a56cb075ae3e30d04fa591e194ce12dbf7
[INFO] running `Command { std: "docker" "start" "-a" "936e6ce223cf1bd4f110dddaa65076a56cb075ae3e30d04fa591e194ce12dbf7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `One`
[INFO] [stderr]  --> src/tuple/tuple2.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num_traits::{real::Real, One, Zero};
[INFO] [stderr]   |                              ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AsMut`, `AsRef`, and `From`
[INFO] [stderr]  --> src/tuple/tuple2.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 |     convert::{AsMut, AsRef, From},
[INFO] [stderr]   |               ^^^^^  ^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/canvas/image.rs:31:22
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stderr]    |                      ----^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/canvas/image.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stderr]    |                               ----^^^^^
[INFO] [stderr]    |                               |
[INFO] [stderr]    |                               help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/canvas/image.rs:31:42
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 let (mut red, mut green, mut blue) = Color::color_into_pixel(&self.data[i * self.width + j]);
[INFO] [stderr]    |                                          ----^^^^
[INFO] [stderr]    |                                          |
[INFO] [stderr]    |                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `turtle-graphics` (lib) generated 5 warnings (run `cargo fix --lib -p turtle-graphics` to apply 5 suggestions)
[INFO] [stderr] warning: `turtle-graphics` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr] warning: unused import: `BLACK`
[INFO] [stderr]  --> examples/sierpinski.rs:3:51
[INFO] [stderr]   |
[INFO] [stderr] 3 | use turtle_graphics::{Canvas, Color, ImageCanvas, BLACK, WHITE};
[INFO] [stderr]   |                                                   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `WindowCanvas`
[INFO] [stderr]  --> examples/sierpinski.rs:4:35
[INFO] [stderr]   |
[INFO] [stderr] 4 | use turtle_graphics::{TurtleLogo, WindowCanvas};
[INFO] [stderr]   |                                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/sierpinski.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     canvas.convert_to_ppm("pictures/", "sierpinski.ppm");
[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] 42 |     let _ = canvas.convert_to_ppm("pictures/", "sierpinski.ppm");
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `turtle` is never read
[INFO] [stderr]   --> examples/spiral-star.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     turtle = turtle.spin(19, -PI / 8.0, &mut scale);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/spiral-star.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     canvas.convert_to_ppm("Pictures/", "SpiralStar.ppm");
[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] 30 |     let _ = canvas.convert_to_ppm("Pictures/", "SpiralStar.ppm");
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BLACK`
[INFO] [stderr]  --> examples/triangular_bump.rs:3:38
[INFO] [stderr]   |
[INFO] [stderr] 3 | use turtle_graphics::{Canvas, Color, BLACK, WHITE};
[INFO] [stderr]   |                                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `triangular_bump` is never used
[INFO] [stderr]  --> examples/triangular_bump.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn triangular_bump(turtle: &mut TurtleLogo<f64>, color: Color, canvas: &mut WindowCanvas) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BLACK`
[INFO] [stderr]  --> src/main.rs:3:38
[INFO] [stderr]   |
[INFO] [stderr] 3 | use turtle_graphics::{Canvas, Color, BLACK, WHITE};
[INFO] [stderr]   |                                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `triangular_bump` is never used
[INFO] [stderr]  --> src/main.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn triangular_bump(turtle: &mut TurtleLogo<f64>, color: Color, canvas: &mut WindowCanvas) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `turtle-graphics` (example "sierpinski") generated 3 warnings (run `cargo fix --example "sierpinski" -p turtle-graphics` to apply 2 suggestions)
[INFO] [stderr] warning: `turtle-graphics` (example "spiral-star") generated 2 warnings
[INFO] [stderr] warning: `turtle-graphics` (example "triangular_bump") generated 2 warnings (run `cargo fix --example "triangular_bump" -p turtle-graphics` to apply 1 suggestion)
[INFO] [stderr] warning: `turtle-graphics` (bin "turtle-graphics" test) generated 2 warnings (run `cargo fix --bin "turtle-graphics" -p turtle-graphics --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/turtle_graphics-6d3f10c08f6f7538)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/turtle_graphics-fd7422886fa1d9d3)
[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] [stderr]    Doc-tests turtle_graphics
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::shift (line 244) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::with_vector (line 66) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::turn (line 149) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::new (line 20) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::vector (line 54) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::point (line 41) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::with_point (line 76) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::mov (line 112) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::spin (line 200) ... ok
[INFO] [stdout] test src/canvas/canvas.rs - canvas::canvas::Canvas::set_background (line 18) ... FAILED
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::resize (line 129) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::scale (line 170) ... ok
[INFO] [stdout] test src/canvas/canvas.rs - canvas::canvas::Canvas::draw_line (line 44) ... ok
[INFO] [stdout] test src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::forward (line 89) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/canvas/canvas.rs - canvas::canvas::Canvas::set_background (line 18) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (346) panicked at src/canvas/window.rs:47:14:
[INFO] [stdout] Failed to create window.: Failed to create window, "XOpenDisplay failed"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x557d6eddf232 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x557d6eddf232 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x557d6eddf232 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x557d6eddf232 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x557d6edee4ff - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x557d6edee4ff - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x557d6edbb3f3 - std::io::default_write_fmt::hf7668c9f69c3a921
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x557d6edbb3f3 - std::io::Write::write_fmt::ha6503cd07dd1d506
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x557d6edc1472 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x557d6edc37cf - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x557d6edc3629 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x557d6edc3da5 - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x557d6edc3c3a - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x557d6edc15a9 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x557d6edafb9d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x557d6edf1f20 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x557d6edf1596 - core::result::unwrap_failed::he05762ef9e6bdf9c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1862:5
[INFO] [stdout]   17:     0x557d6eca8fd5 - core::result::Result<T,E>::expect::h3bd98763e8f25e58
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1185:23
[INFO] [stdout]   18:     0x557d6eca8aea - <turtle_graphics::canvas::window::WindowCanvas as turtle_graphics::canvas::canvas::Canvas>::new::h0107d8ad10856a6b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/canvas/window.rs:47:14
[INFO] [stdout]   19:     0x557d6eca8792 - rust_out::main::_doctest_main_src_canvas_canvas_rs_18_0::hacf6f0a63034d7a5
[INFO] [stdout]   20:     0x557d6eca8746 - rust_out::main::hca4b1f7e004a5b5b
[INFO] [stdout]   21:     0x557d6eca8573 - core::ops::function::FnOnce::call_once::hd1d9844f43ba9ade
[INFO] [stdout]   22:     0x557d6eca84d6 - std::sys::backtrace::__rust_begin_short_backtrace::h1b07d04bd89bf1d2
[INFO] [stdout]   23:     0x557d6eca84b9 - std::rt::lang_start::{{closure}}::h195b227e6d961974
[INFO] [stdout]   24:     0x557d6edbcd00 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfe01ef9c04091e5f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   25:     0x557d6edbcd00 - std::panicking::catch_unwind::do_call::h3720541c1dc2745c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   26:     0x557d6edbcd00 - std::panicking::catch_unwind::hf812e1c72a8544c2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   27:     0x557d6edbcd00 - std::panic::catch_unwind::h9e80dffea8831154
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   28:     0x557d6edbcd00 - std::rt::lang_start_internal::{{closure}}::h03410fa218b2c977
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/rt.rs:175:24
[INFO] [stdout]   29:     0x557d6edbcd00 - std::panicking::catch_unwind::do_call::hcc46efa18e4a9c15
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   30:     0x557d6edbcd00 - std::panicking::catch_unwind::hc0afbf6668eb863a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   31:     0x557d6edbcd00 - std::panic::catch_unwind::h9640c0d1343096b8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x557d6edbcd00 - std::rt::lang_start_internal::hea659f61d058debe
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/rt.rs:171:5
[INFO] [stdout]   33:     0x557d6eca84a1 - std::rt::lang_start::h1eafb7a9125a057d
[INFO] [stdout]   34:     0x557d6eca8825 - main
[INFO] [stdout]   35:     0x7ba18c4581ca - <unknown>
[INFO] [stdout]   36:     0x7ba18c45828b - __libc_start_main
[INFO] [stdout]   37:     0x557d6eca81c5 - _start
[INFO] [stdout]   38:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::forward (line 89) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (419) panicked at src/canvas/window.rs:47:14:
[INFO] [stdout] Failed to create window.: Failed to create window, "XOpenDisplay failed"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5aa5e22475a2 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5aa5e22475a2 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5aa5e22475a2 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5aa5e22475a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5aa5e225739f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5aa5e225739f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x5aa5e2223763 - std::io::default_write_fmt::hf7668c9f69c3a921
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5aa5e2223763 - std::io::Write::write_fmt::ha6503cd07dd1d506
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5aa5e22297e2 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5aa5e222bb3f - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5aa5e222b999 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x5aa5e222c115 - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x5aa5e222bfaa - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x5aa5e2229919 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x5aa5e2217f0d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x5aa5e225ee10 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5aa5e225e486 - core::result::unwrap_failed::he05762ef9e6bdf9c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1862:5
[INFO] [stdout]   17:     0x5aa5e2111345 - core::result::Result<T,E>::expect::h3bd98763e8f25e58
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1185:23
[INFO] [stdout]   18:     0x5aa5e2110e5a - <turtle_graphics::canvas::window::WindowCanvas as turtle_graphics::canvas::canvas::Canvas>::new::h0107d8ad10856a6b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/canvas/window.rs:47:14
[INFO] [stdout]   19:     0x5aa5e21109a6 - rust_out::main::_doctest_main_src_turtle_logo_rs_89_0::ha6e91471991226db
[INFO] [stdout]   20:     0x5aa5e21108f6 - rust_out::main::hca4b1f7e004a5b5b
[INFO] [stdout]   21:     0x5aa5e2110623 - core::ops::function::FnOnce::call_once::hd1d9844f43ba9ade
[INFO] [stdout]   22:     0x5aa5e2110546 - std::sys::backtrace::__rust_begin_short_backtrace::h1b07d04bd89bf1d2
[INFO] [stdout]   23:     0x5aa5e2110529 - std::rt::lang_start::{{closure}}::h195b227e6d961974
[INFO] [stdout]   24:     0x5aa5e2225070 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfe01ef9c04091e5f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   25:     0x5aa5e2225070 - std::panicking::catch_unwind::do_call::h3720541c1dc2745c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   26:     0x5aa5e2225070 - std::panicking::catch_unwind::hf812e1c72a8544c2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   27:     0x5aa5e2225070 - std::panic::catch_unwind::h9e80dffea8831154
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   28:     0x5aa5e2225070 - std::rt::lang_start_internal::{{closure}}::h03410fa218b2c977
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/rt.rs:175:24
[INFO] [stdout]   29:     0x5aa5e2225070 - std::panicking::catch_unwind::do_call::hcc46efa18e4a9c15
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   30:     0x5aa5e2225070 - std::panicking::catch_unwind::hc0afbf6668eb863a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   31:     0x5aa5e2225070 - std::panic::catch_unwind::h9640c0d1343096b8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5aa5e2225070 - std::rt::lang_start_internal::hea659f61d058debe
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/rt.rs:171:5
[INFO] [stdout]   33:     0x5aa5e2110511 - std::rt::lang_start::h1eafb7a9125a057d
[INFO] [stdout]   34:     0x5aa5e2110b95 - main
[INFO] [stdout]   35:     0x71b8315e21ca - <unknown>
[INFO] [stdout]   36:     0x71b8315e228b - __libc_start_main
[INFO] [stdout]   37:     0x5aa5e210f925 - _start
[INFO] [stdout]   38:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/canvas/canvas.rs - canvas::canvas::Canvas::set_background (line 18)
[INFO] [stdout]     src/turtle/logo.rs - turtle::logo::TurtleLogo<T>::forward (line 89)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.97s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "936e6ce223cf1bd4f110dddaa65076a56cb075ae3e30d04fa591e194ce12dbf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "936e6ce223cf1bd4f110dddaa65076a56cb075ae3e30d04fa591e194ce12dbf7", kill_on_drop: false }`
[INFO] [stdout] 936e6ce223cf1bd4f110dddaa65076a56cb075ae3e30d04fa591e194ce12dbf7
