[INFO] fetching crate sunshine 0.0.6...
[INFO] checking sunshine-0.0.6 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate sunshine 0.0.6 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate sunshine 0.0.6 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 crates.io crate sunshine 0.0.6
[INFO] finished tweaking crates.io crate sunshine 0.0.6
[INFO] tweaked toml for crates.io crate sunshine 0.0.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate sunshine 0.0.6 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytemuck v1.4.1
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded image v0.23.11
[INFO] [stderr]   Downloaded tiff v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ce814df14f360691aa45ab30b6034f89611ba713569a2977fdeb16d13da4ba40
[INFO] running `Command { std: "docker" "start" "-a" "ce814df14f360691aa45ab30b6034f89611ba713569a2977fdeb16d13da4ba40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce814df14f360691aa45ab30b6034f89611ba713569a2977fdeb16d13da4ba40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce814df14f360691aa45ab30b6034f89611ba713569a2977fdeb16d13da4ba40", kill_on_drop: false }`
[INFO] [stdout] ce814df14f360691aa45ab30b6034f89611ba713569a2977fdeb16d13da4ba40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f8a8aa652d037e1765e53881e1ae552dc4aeea6843bec559f0debdce2db0e469
[INFO] running `Command { std: "docker" "start" "-a" "f8a8aa652d037e1765e53881e1ae552dc4aeea6843bec559f0debdce2db0e469", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking image v0.23.11
[INFO] [stderr]     Checking sunshine v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/renderer.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     let wall_height = (framebuffer.height as f64 / projected_distance);
[INFO] [stdout]    |                                       ^                                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -                     let wall_height = (framebuffer.height as f64 / projected_distance);
[INFO] [stdout] 43 +                     let wall_height = framebuffer.height as f64 / projected_distance;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `projected_distance` is never read
[INFO] [stdout]   --> src/renderer.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut projected_distance = 0.0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ray_x`
[INFO] [stdout]   --> src/renderer.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let local_ray_x = ray_x - (ray_x + 0.5).floor();
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ray_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ray_y`
[INFO] [stdout]   --> src/renderer.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     let local_ray_y = ray_y - (ray_y + 0.5).floor();
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ray_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLACK` is never used
[INFO] [stdout]  --> src/renderer.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BLACK: RGB = RGB{r:0,g:0,b:0,a:255};
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GRAY` is never used
[INFO] [stdout]  --> src/renderer.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const GRAY: RGB = RGB{r:150,g:150,b:150,a:255};
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/renderer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const RED: RGB = RGB{r:255,g:0,b:0,a:255};
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_sprite_to_map` is never used
[INFO] [stdout]    --> src/renderer.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn render_sprite_to_map(sprite: &Sprite, framebuffer: &mut Framebuffer, map: &Map) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/renderer.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     let wall_height = (framebuffer.height as f64 / projected_distance);
[INFO] [stdout]    |                                       ^                                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -                     let wall_height = (framebuffer.height as f64 / projected_distance);
[INFO] [stdout] 43 +                     let wall_height = framebuffer.height as f64 / projected_distance;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RGB`
[INFO] [stdout]  --> examples/ex1.rs:2:42
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sunshine::framebuffer::{Framebuffer, RGB};
[INFO] [stdout]   |                                          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/ex1.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     framebuffer.write_file("frame.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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let _ = framebuffer.write_file("frame.ppm");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `projected_distance` is never read
[INFO] [stdout]   --> src/renderer.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut projected_distance = 0.0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ray_x`
[INFO] [stdout]   --> src/renderer.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let local_ray_x = ray_x - (ray_x + 0.5).floor();
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ray_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ray_y`
[INFO] [stdout]   --> src/renderer.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     let local_ray_y = ray_y - (ray_y + 0.5).floor();
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ray_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLACK` is never used
[INFO] [stdout]  --> src/renderer.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BLACK: RGB = RGB{r:0,g:0,b:0,a:255};
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GRAY` is never used
[INFO] [stdout]  --> src/renderer.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const GRAY: RGB = RGB{r:150,g:150,b:150,a:255};
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/renderer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const RED: RGB = RGB{r:255,g:0,b:0,a:255};
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_sprite_to_map` is never used
[INFO] [stdout]    --> src/renderer.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn render_sprite_to_map(sprite: &Sprite, framebuffer: &mut Framebuffer, map: &Map) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.81s
[INFO] running `Command { std: "docker" "inspect" "f8a8aa652d037e1765e53881e1ae552dc4aeea6843bec559f0debdce2db0e469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a8aa652d037e1765e53881e1ae552dc4aeea6843bec559f0debdce2db0e469", kill_on_drop: false }`
[INFO] [stdout] f8a8aa652d037e1765e53881e1ae552dc4aeea6843bec559f0debdce2db0e469