[INFO] fetching crate conrod_floatwin 0.0.2...
[INFO] checking conrod_floatwin-0.0.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate conrod_floatwin 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate conrod_floatwin 0.0.2 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 conrod_floatwin 0.0.2
[INFO] finished tweaking crates.io crate conrod_floatwin 0.0.2
[INFO] tweaked toml for crates.io crate conrod_floatwin 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate conrod_floatwin 0.0.2 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 37fd71a40d731f1efccddbf3fd7733ed57dff2398e09a61bb45f2f1d750903a3
[INFO] running `Command { std: "docker" "start" "-a" "37fd71a40d731f1efccddbf3fd7733ed57dff2398e09a61bb45f2f1d750903a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37fd71a40d731f1efccddbf3fd7733ed57dff2398e09a61bb45f2f1d750903a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fd71a40d731f1efccddbf3fd7733ed57dff2398e09a61bb45f2f1d750903a3", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 33a05c14dc78a33219c7931ad547794350b3a375db1071439d3aa1c0565f394f
[INFO] running `Command { std: "docker" "start" "-a" "33a05c14dc78a33219c7931ad547794350b3a375db1071439d3aa1c0565f394f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling glium v0.24.0
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[INFO] [stderr]    Compiling conrod_derive v0.70.0
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[INFO] [stderr]     Checking x11-clipboard v0.5.1
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[INFO] [stderr]     Checking copypasta v0.6.3
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[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking conrod_floatwin v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/windowing_area/layout.rs:978:10
[INFO] [stdout]     |
[INFO] [stdout] 978 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borderable`
[INFO] [stdout]  --> src/windowing_area/window_frame.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 |     text, widget, widget_ids, Borderable, Color, Colorable, FontSize, Labelable, Positionable,
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Labelable`
[INFO] [stdout]  --> src/windowing_area/window_frame.rs:8:71
[INFO] [stdout]   |
[INFO] [stdout] 8 |     text, widget, widget_ids, Borderable, Color, Colorable, FontSize, Labelable, Positionable,
[INFO] [stdout]   |                                                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_size`
[INFO] [stdout]    --> src/windowing_area/layout.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             min_size,
[INFO] [stdout]     |             ^^^^^^^^ help: try ignoring the field: `min_size: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_win_normal_rect` is never used
[INFO] [stdout]    --> src/windowing_area/layout.rs:552:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl WindowingState {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 552 |     pub(crate) fn set_win_normal_rect(&mut self, win_id: WinId, rect: RectF) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `PointF` is never used
[INFO] [stdout]   --> src/windowing_area/layout/dim.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type PointF = Point<f32>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `PointI` is never used
[INFO] [stdout]   --> src/windowing_area/layout/dim.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub type PointI = Point<i32>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ContinuousDim` is never used
[INFO] [stdout]    --> src/windowing_area/layout/dim.rs:158:11
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub trait ContinuousDim: Dim {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DiscreteDim` is never used
[INFO] [stdout]    --> src/windowing_area/layout/dim.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub trait DiscreteDim: Dim + Eq {}
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DimRangeH` is never used
[INFO] [stdout]  --> src/windowing_area/layout/snapping.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type DimRangeH = DimRange<i32, Horizontal>;
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DimRangeV` is never used
[INFO] [stdout]  --> src/windowing_area/layout/snapping.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type DimRangeV = DimRange<i32, Vertical>;
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hidpi_factor` is never read
[INFO] [stdout]   --> src/windowing_area/debug.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DebugWidget<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub hidpi_factor: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.20.1
[INFO] [stderr]     Checking conrod_glium v0.70.0
[INFO] [stdout] warning: the item `glium` is imported redundantly
[INFO] [stdout]  --> examples/support/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use glium;
[INFO] [stdout]   |     ^^^^^ the item `glium` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> examples/support/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/windowing_area/layout.rs:978:10
[INFO] [stdout]     |
[INFO] [stdout] 978 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borderable`
[INFO] [stdout]  --> src/windowing_area/window_frame.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 |     text, widget, widget_ids, Borderable, Color, Colorable, FontSize, Labelable, Positionable,
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Labelable`
[INFO] [stdout]  --> src/windowing_area/window_frame.rs:8:71
[INFO] [stdout]   |
[INFO] [stdout] 8 |     text, widget, widget_ids, Borderable, Color, Colorable, FontSize, Labelable, Positionable,
[INFO] [stdout]   |                                                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_size`
[INFO] [stdout]    --> src/windowing_area/layout.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             min_size,
[INFO] [stdout]     |             ^^^^^^^^ help: try ignoring the field: `min_size: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_win_normal_rect` is never used
[INFO] [stdout]    --> src/windowing_area/layout.rs:552:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl WindowingState {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 552 |     pub(crate) fn set_win_normal_rect(&mut self, win_id: WinId, rect: RectF) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `PointF` is never used
[INFO] [stdout]   --> src/windowing_area/layout/dim.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type PointF = Point<f32>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `PointI` is never used
[INFO] [stdout]   --> src/windowing_area/layout/dim.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub type PointI = Point<i32>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ContinuousDim` is never used
[INFO] [stdout]    --> src/windowing_area/layout/dim.rs:158:11
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub trait ContinuousDim: Dim {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DiscreteDim` is never used
[INFO] [stdout]    --> src/windowing_area/layout/dim.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub trait DiscreteDim: Dim + Eq {}
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DimRangeH` is never used
[INFO] [stdout]  --> src/windowing_area/layout/snapping.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type DimRangeH = DimRange<i32, Horizontal>;
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DimRangeV` is never used
[INFO] [stdout]  --> src/windowing_area/layout/snapping.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type DimRangeV = DimRange<i32, Vertical>;
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hidpi_factor` is never read
[INFO] [stdout]   --> src/windowing_area/debug.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DebugWidget<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub hidpi_factor: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.83s
[INFO] running `Command { std: "docker" "inspect" "33a05c14dc78a33219c7931ad547794350b3a375db1071439d3aa1c0565f394f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a05c14dc78a33219c7931ad547794350b3a375db1071439d3aa1c0565f394f", kill_on_drop: false }`
[INFO] [stdout] 33a05c14dc78a33219c7931ad547794350b3a375db1071439d3aa1c0565f394f