[INFO] fetching crate frui_widgets 0.0.1...
[INFO] checking frui_widgets-0.0.1 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate frui_widgets 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate frui_widgets 0.0.1 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frui_widgets 0.0.1
[INFO] finished tweaking crates.io crate frui_widgets 0.0.1
[INFO] tweaked toml for crates.io crate frui_widgets 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded frui_macros v0.0.1
[INFO] [stderr]   Downloaded unic-ucd-bidi v0.9.0
[INFO] [stderr]   Downloaded piet-common v0.3.2
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[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "80099da0f72057e9936ddc174eb09d3c0aa3a487e4ca709efb7e8acf963bcffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80099da0f72057e9936ddc174eb09d3c0aa3a487e4ca709efb7e8acf963bcffa", kill_on_drop: false }`
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[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92b2aea0eb03f2dc51e89bb01ad9f6e88f6f99afda4290a3f1f49b33467adcf4
[INFO] running `Command { std: "docker" "start" "-a" "92b2aea0eb03f2dc51e89bb01ad9f6e88f6f99afda4290a3f1f49b33467adcf4", kill_on_drop: false }`
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[INFO] [stderr]     Checking frui_core v0.0.1
[INFO] [stderr]     Checking frui_widgets v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Rect` is imported redundantly
[INFO] [stdout]  --> src/container.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use druid_shell::kurbo::Rect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use frui::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Rect` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `KeyEvent` is imported redundantly
[INFO] [stdout]  --> src/event_detectors/keyboard.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use druid_shell::KeyEvent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `KeyEvent` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/flex/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use column::*;
[INFO] [stdout]   |         ^^^^^^^^^ the name `ColumnRenderState` in the type namespace is first re-exported here
[INFO] [stdout] 5 | pub use row::*;
[INFO] [stdout]   |         ------ but the name `ColumnRenderState` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RenderContext` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^  - the item `RenderContext` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rect` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                                    - the item `Rect` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Rect, Color, LineCap, RenderContext as PietRenderContext, StrokeStyle,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                                    - the item `Color` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Rect, Color, LineCap, RenderContext as PietRenderContext, StrokeStyle,
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Point` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `Point` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `Color` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FontFamily` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `FontFamily` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FontWeight` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `FontWeight` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rect` is imported redundantly
[INFO] [stdout]  --> src/container.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use druid_shell::kurbo::Rect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use frui::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Rect` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `KeyEvent` is imported redundantly
[INFO] [stdout]  --> src/event_detectors/keyboard.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use druid_shell::KeyEvent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `KeyEvent` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/flex/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use column::*;
[INFO] [stdout]   |         ^^^^^^^^^ the name `ColumnRenderState` in the type namespace is first re-exported here
[INFO] [stdout] 5 | pub use row::*;
[INFO] [stdout]   |         ------ but the name `ColumnRenderState` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RenderContext` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^  - the item `RenderContext` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rect` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                                    - the item `Rect` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Rect, Color, LineCap, RenderContext as PietRenderContext, StrokeStyle,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]  --> src/testing.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::prelude::{RenderContext, *};
[INFO] [stdout]   |                                    - the item `Color` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Rect, Color, LineCap, RenderContext as PietRenderContext, StrokeStyle,
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Point` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `Point` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `Color` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FontFamily` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `FontFamily` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FontWeight` is imported redundantly
[INFO] [stdout]  --> src/text.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use frui::{app::TEXT_FACTORY, prelude::*};
[INFO] [stdout]   |                               ---------- the item `FontWeight` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     kurbo::Point, Color, FontFamily, FontWeight, PietTextLayout, Text as TextExt, TextLayout,
[INFO] [stdout]   |                                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/container.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasContainer<'w, W>` because of return type
[INFO] [stdout] 56 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasContainer<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/container.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/container.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasContainer<'w, W>` because of return type
[INFO] [stdout] 56 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasContainer<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/container.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/event_detectors/keyboard.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(ViewWidget)]
[INFO] [stdout]    |          ---------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasKeyboardEventDetector<'w, W, F>` because of return type
[INFO] [stdout] 36 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasKeyboardEventDetector<'w, W, F>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/event_detectors/keyboard.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/event_detectors/keyboard.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(ViewWidget)]
[INFO] [stdout]    |          ---------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasKeyboardEventDetector<'w, W, F>` because of return type
[INFO] [stdout] 36 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasKeyboardEventDetector<'w, W, F>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/event_detectors/keyboard.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/flex/center.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasCenter<'w, W>` because of return type
[INFO] [stdout] 16 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasCenter<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/flex/center.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/flex/center.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasCenter<'w, W>` because of return type
[INFO] [stdout] 16 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasCenter<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/flex/center.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/column.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 9   | #[derive(MultiChildWidget)]
[INFO] [stdout]     |          ---------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |                                                          --------------------- expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'w, T>>` because of return type
[INFO] [stdout] 122 |         self.children.get()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'_, ...>>`, found `Vec<&dyn Widget>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'w, T>>`
[INFO] [stdout]                found struct `Vec<&dyn frui_core::api::Widget>`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/column.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/column.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 9   | #[derive(MultiChildWidget)]
[INFO] [stdout]     |          ---------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |                                                          --------------------- expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'w, T>>` because of return type
[INFO] [stdout] 122 |         self.children.get()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'_, ...>>`, found `Vec<&dyn Widget>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Vec<AsdavbmwqeryuiopvzxcWidgetAliasColumn<'w, T>>`
[INFO] [stdout]                found struct `Vec<&dyn frui_core::api::Widget>`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/column.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/row.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 9   | #[derive(MultiChildWidget)]
[INFO] [stdout]     |          ---------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |                                                          --------------------- expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'w, T>>` because of return type
[INFO] [stdout] 122 |         self.children.get()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'_, ...>>`, found `Vec<&dyn Widget>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'w, T>>`
[INFO] [stdout]                found struct `Vec<&dyn frui_core::api::Widget>`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/row.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/row.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 9   | #[derive(MultiChildWidget)]
[INFO] [stdout]     |          ---------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |                                                          --------------------- expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'w, T>>` because of return type
[INFO] [stdout] 122 |         self.children.get()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ expected `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'_, ...>>`, found `Vec<&dyn Widget>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Vec<AsdavbmwqeryuiopvzxcWidgetAliasRow<'w, T>>`
[INFO] [stdout]                found struct `Vec<&dyn frui_core::api::Widget>`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/row.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Vec<Self::Widget<'w>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/mod.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 202 | #[derive(SingleChildWidget)]
[INFO] [stdout]     |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 220 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]     |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasFlexible<'w, W>` because of return type
[INFO] [stdout] 221 |         &self.child
[INFO] [stdout]     |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasFlexible<'w, W>`
[INFO] [stdout]                  found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/mod.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/flex/mod.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 202 | #[derive(SingleChildWidget)]
[INFO] [stdout]     |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 220 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]     |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasFlexible<'w, W>` because of return type
[INFO] [stdout] 221 |         &self.child
[INFO] [stdout]     |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasFlexible<'w, W>`
[INFO] [stdout]                  found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]    --> src/flex/mod.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scroll.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasScroll<'w, W>` because of return type
[INFO] [stdout] 61 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasScroll<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/scroll.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scroll.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasScroll<'w, W>` because of return type
[INFO] [stdout] 61 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasScroll<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/scroll.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/testing.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasDebugContainer<'w, W>` because of return type
[INFO] [stdout] 20 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasDebugContainer<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/testing.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/testing.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(SingleChildWidget)]
[INFO] [stdout]    |          ----------------- the expected opaque type
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |                                                          ---------------- expected `AsdavbmwqeryuiopvzxcWidgetAliasDebugContainer<'w, W>` because of return type
[INFO] [stdout] 20 |         &self.child
[INFO] [stdout]    |         ^^^^^^^^^^^ expected opaque type, found `&W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `AsdavbmwqeryuiopvzxcWidgetAliasDebugContainer<'w, W>`
[INFO] [stdout]                 found reference `&W`
[INFO] [stdout] note: this item must have the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> src/testing.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `frui_widgets` (lib test) due to 9 previous errors; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `frui_widgets` (lib) due to 9 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "92b2aea0eb03f2dc51e89bb01ad9f6e88f6f99afda4290a3f1f49b33467adcf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b2aea0eb03f2dc51e89bb01ad9f6e88f6f99afda4290a3f1f49b33467adcf4", kill_on_drop: false }`
[INFO] [stdout] 92b2aea0eb03f2dc51e89bb01ad9f6e88f6f99afda4290a3f1f49b33467adcf4
