[INFO] updating cached repository https://github.com/javinovo/rust-vulkan
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ed29be9aec97dcde82c7b274d6413f2fdb7b194f
[INFO] checking javinovo/rust-vulkan against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavinovo%2Frust-vulkan" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/javinovo/rust-vulkan on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/javinovo/rust-vulkan
[INFO] finished tweaking git repo https://github.com/javinovo/rust-vulkan
[INFO] tweaked toml for git repo https://github.com/javinovo/rust-vulkan written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/javinovo/rust-vulkan already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 481d2a219734c8aaddbc91fe89d9e11590edead4aac5f6e45f64b62ee57b73bc
[INFO] running `"docker" "start" "-a" "481d2a219734c8aaddbc91fe89d9e11590edead4aac5f6e45f64b62ee57b73bc"`
[INFO] [stderr]    Compiling vulkano v0.7.2
[INFO] [stderr]     Checking vk-sys v0.3.2
[INFO] [stderr]     Checking half v1.0.2
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.3
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking png v0.8.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]     Checking image v0.14.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]     Checking wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking wayland-window v0.7.0
[INFO] [stderr]     Checking winit v0.7.6
[INFO] [stderr]     Checking vulkano-win v0.7.2
[INFO] [stderr]    Compiling vulkano-shaders v0.7.2
[INFO] [stderr]    Compiling vulkano-shader-derive v0.7.2
[INFO] [stderr]     Checking hello_vulkan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `vulkano::device::Device`
[INFO] [stderr]   --> src/mandelbrot.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use vulkano::device::Device;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::DeviceExtensions`
[INFO] [stderr]   --> src/mandelbrot.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use vulkano::device::DeviceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Features`
[INFO] [stderr]   --> src/mandelbrot.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use vulkano::instance::Features;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Instance`
[INFO] [stderr]   --> src/mandelbrot.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use vulkano::instance::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::InstanceExtensions`
[INFO] [stderr]   --> src/mandelbrot.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use vulkano::instance::InstanceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::PhysicalDevice`
[INFO] [stderr]   --> src/mandelbrot.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use vulkano::instance::PhysicalDevice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::Device`
[INFO] [stderr]   --> src/render.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use vulkano::device::Device;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::DeviceExtensions`
[INFO] [stderr]   --> src/render.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use vulkano::device::DeviceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Features`
[INFO] [stderr]   --> src/render.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use vulkano::instance::Features;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Instance`
[INFO] [stderr]   --> src/render.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use vulkano::instance::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::InstanceExtensions`
[INFO] [stderr]   --> src/render.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use vulkano::instance::InstanceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::PhysicalDevice`
[INFO] [stderr]   --> src/render.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use vulkano::instance::PhysicalDevice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::winit::WindowBuilder`
[INFO] [stderr]  --> src/render_win.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use self::winit::WindowBuilder;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window`
[INFO] [stderr]   --> src/render_win.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let window = winit::WindowBuilder::new().build_vk_surface(&events_loop, instance.clone()).unwrap();
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_window`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/compute.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/mandelbrot.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/render.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/render.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/render_win.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn run() {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::Device`
[INFO] [stderr]   --> src/mandelbrot.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use vulkano::device::Device;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::DeviceExtensions`
[INFO] [stderr]   --> src/mandelbrot.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use vulkano::device::DeviceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Features`
[INFO] [stderr]   --> src/mandelbrot.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use vulkano::instance::Features;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Instance`
[INFO] [stderr]   --> src/mandelbrot.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use vulkano::instance::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::InstanceExtensions`
[INFO] [stderr]   --> src/mandelbrot.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use vulkano::instance::InstanceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::PhysicalDevice`
[INFO] [stderr]   --> src/mandelbrot.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use vulkano::instance::PhysicalDevice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::Device`
[INFO] [stderr]   --> src/render.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use vulkano::device::Device;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::device::DeviceExtensions`
[INFO] [stderr]   --> src/render.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use vulkano::device::DeviceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Features`
[INFO] [stderr]   --> src/render.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use vulkano::instance::Features;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::Instance`
[INFO] [stderr]   --> src/render.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use vulkano::instance::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::InstanceExtensions`
[INFO] [stderr]   --> src/render.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use vulkano::instance::InstanceExtensions;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vulkano::instance::PhysicalDevice`
[INFO] [stderr]   --> src/render.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use vulkano::instance::PhysicalDevice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::winit::WindowBuilder`
[INFO] [stderr]  --> src/render_win.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use self::winit::WindowBuilder;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window`
[INFO] [stderr]   --> src/render_win.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let window = winit::WindowBuilder::new().build_vk_surface(&events_loop, instance.clone()).unwrap();
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_window`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/compute.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/mandelbrot.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/render.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/render.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/render_win.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn run() {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `"docker" "inspect" "481d2a219734c8aaddbc91fe89d9e11590edead4aac5f6e45f64b62ee57b73bc"`
[INFO] running `"docker" "rm" "-f" "481d2a219734c8aaddbc91fe89d9e11590edead4aac5f6e45f64b62ee57b73bc"`
[INFO] [stdout] 481d2a219734c8aaddbc91fe89d9e11590edead4aac5f6e45f64b62ee57b73bc