[INFO] cloning repository https://github.com/xnor99/fraktaloj_gui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xnor99/fraktaloj_gui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd9df816e9998155f95d65f5d81f6cd8107e0bf0
[INFO] checking xnor99/fraktaloj_gui against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnor99%2Ffraktaloj_gui" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xnor99/fraktaloj_gui
[INFO] finished tweaking git repo https://github.com/xnor99/fraktaloj_gui
[INFO] tweaked toml for git repo https://github.com/xnor99/fraktaloj_gui written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xnor99/fraktaloj_gui on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xnor99/fraktaloj_gui 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0049ef22fe0826f7788e13e0d41ed499423954ede453d74626a9330ff726b86e
[INFO] running `Command { std: "docker" "start" "-a" "0049ef22fe0826f7788e13e0d41ed499423954ede453d74626a9330ff726b86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0049ef22fe0826f7788e13e0d41ed499423954ede453d74626a9330ff726b86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0049ef22fe0826f7788e13e0d41ed499423954ede453d74626a9330ff726b86e", kill_on_drop: false }`
[INFO] [stdout] 0049ef22fe0826f7788e13e0d41ed499423954ede453d74626a9330ff726b86e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ec532a9842444066c904320456fa72fbcb3d24d325f605b009dfda56ff92780
[INFO] running `Command { std: "docker" "start" "-a" "2ec532a9842444066c904320456fa72fbcb3d24d325f605b009dfda56ff92780", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling opencl-sys v0.2.8
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking libc v0.2.153
[INFO] [stderr]     Checking crossbeam-utils v0.8.19
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking cl3 v0.9.5
[INFO] [stderr]     Checking opencl3 v0.9.5
[INFO] [stderr]     Checking fraktaloj_gui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Message(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Message(String),
[INFO] [stdout] 14 +     Message(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |     WindowBuildError(WindowBuildError),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     WindowBuildError(WindowBuildError),
[INFO] [stdout] 15 +     WindowBuildError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     IntegerOrSdlError(IntegerOrSdlError),
[INFO] [stdout]    |     ----------------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     IntegerOrSdlError(IntegerOrSdlError),
[INFO] [stdout] 16 +     IntegerOrSdlError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     WriteToTextureError(WriteToTextureError),
[INFO] [stdout]    |     ------------------- ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     WriteToTextureError(WriteToTextureError),
[INFO] [stdout] 17 +     WriteToTextureError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     TextureValueError(TextureValueError),
[INFO] [stdout]    |     ----------------- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     TextureValueError(TextureValueError),
[INFO] [stdout] 18 +     TextureValueError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |     TtfInitError(InitError),
[INFO] [stdout]    |     ------------ ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     TtfInitError(InitError),
[INFO] [stdout] 19 +     TtfInitError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     FontError(FontError),
[INFO] [stdout]    |     --------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SdlError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     FontError(FontError),
[INFO] [stdout] 20 +     FontError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 |     SdlError(SdlError),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FatalError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 76 -     SdlError(SdlError),
[INFO] [stdout] 76 +     SdlError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |     OpenclError(OpenclError),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FatalError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 77 -     OpenclError(OpenclError),
[INFO] [stdout] 77 +     OpenclError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/error.rs:108:24
[INFO] [stdout]     |
[INFO] [stdout] 108 |     UpdateTextureError(UpdateTextureError),
[INFO] [stdout]     |     ------------------ ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WriteToTextureError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 108 -     UpdateTextureError(UpdateTextureError),
[INFO] [stdout] 108 +     UpdateTextureError(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/error.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |     ClError(ClError),
[INFO] [stdout]     |     ------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OpenclError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 122 -     ClError(ClError),
[INFO] [stdout] 122 +     ClError(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/error.rs:124:18
[INFO] [stdout]     |
[INFO] [stdout] 124 |     CompileError(String),
[INFO] [stdout]     |     ------------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OpenclError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 124 -     CompileError(String),
[INFO] [stdout] 124 +     CompileError(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(IterationImage, Duration), !>
[INFO] [stdout]    --> src/main.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 measure_render(&mut cpu_renderer, center, radius, max_iterations).unwrap()
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IterationImage, !>
[INFO] [stdout]    --> src/render/cpu.rs:68:46
[INFO] [stdout]     |
[INFO] [stdout]  68 |       ) -> Result<IterationImage, Self::Error> {
[INFO] [stdout]     |  ______________________________________________^
[INFO] [stdout]  69 | |         let width_float = T::from(self.width.get()).unwrap_or(T::infinity());
[INFO] [stdout]  70 | |         let height_float = T::from(self.height.get()).unwrap_or(T::infinity());
[INFO] [stdout]  71 | |         let vertical_radius = horizontal_radius * height_float / width_float;
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |         .unwrap())
[INFO] [stdout] 128 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IterationImage, !>
[INFO] [stdout]    --> src/render/cpu.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 | /         Ok(IterationImage::from_buffer(
[INFO] [stdout] 123 | |             self.iteration_image_buffer.clone(),
[INFO] [stdout] 124 | |             self.width,
[INFO] [stdout] 125 | |             max_iterations,
[INFO] [stdout] 126 | |         )
[INFO] [stdout] 127 | |         .unwrap())
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fraktaloj_gui` (bin "fraktaloj_gui") due to 3 previous errors; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2ec532a9842444066c904320456fa72fbcb3d24d325f605b009dfda56ff92780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec532a9842444066c904320456fa72fbcb3d24d325f605b009dfda56ff92780", kill_on_drop: false }`
[INFO] [stdout] 2ec532a9842444066c904320456fa72fbcb3d24d325f605b009dfda56ff92780
