[INFO] fetching crate mg 0.13.1...
[INFO] checking mg-0.13.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate mg 0.13.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mg 0.13.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mg 0.13.1
[INFO] finished tweaking crates.io crate mg 0.13.1
[INFO] tweaked toml for crates.io crate mg 0.13.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mg 0.13.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4b83df45d388aaad92daa3e4eb52014d48733ba8ddef2ea7f125cfcf397e5ad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4b83df45d388aaad92daa3e4eb52014d48733ba8ddef2ea7f125cfcf397e5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4b83df45d388aaad92daa3e4eb52014d48733ba8ddef2ea7f125cfcf397e5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b83df45d388aaad92daa3e4eb52014d48733ba8ddef2ea7f125cfcf397e5ad", kill_on_drop: false }`
[INFO] [stdout] b4b83df45d388aaad92daa3e4eb52014d48733ba8ddef2ea7f125cfcf397e5ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7adb7c15bf2cacef4299bd4675569c00bbc27f3f2970f725c8247611d76e9e1f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7adb7c15bf2cacef4299bd4675569c00bbc27f3f2970f725c8247611d76e9e1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling gio v0.9.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling pango v0.9.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling gdk v0.13.0
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libxdo-sys v0.11.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling gtk v0.9.0
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]     Checking quote v0.6.11
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking libxdo v0.6.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling mg-settings-macros v0.4.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking mg-settings v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling relm-derive v0.20.0
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling glib-sys v0.10.0
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking glib v0.10.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking relm v0.20.0
[INFO] [stderr]     Checking mg v0.13.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::char`
[INFO] [stdout]   --> src/app/keypress.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use std::char;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `keyval_to_unicode`
[INFO] [stdout]   --> src/app/shortcut.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 25 | use gdk::{EventKey, ModifierType, keyval_to_unicode};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/app/status_bar.rs:363:5
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[derive(Msg)]
[INFO] [stdout]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stdout] 362 | pub enum ItemMsg {
[INFO] [stdout] 363 |     /// Set the color of the status bar item.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/app/status_bar.rs:365:5
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[derive(Msg)]
[INFO] [stdout]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stdout] ...
[INFO] [stdout] 365 |     /// Set the text of the status bar item.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char`
[INFO] [stdout]   --> src/app/keypress.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use std::char;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `keyval_to_unicode`
[INFO] [stdout]   --> src/app/shortcut.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 25 | use gdk::{EventKey, ModifierType, keyval_to_unicode};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/app/status_bar.rs:363:5
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[derive(Msg)]
[INFO] [stdout]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stdout] 362 | pub enum ItemMsg {
[INFO] [stdout] 363 |     /// Set the color of the status bar item.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/app/status_bar.rs:365:5
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[derive(Msg)]
[INFO] [stdout]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stdout] ...
[INFO] [stdout] 365 |     /// Set the text of the status bar item.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |         status_bar.override_background_color(StateFlags::NORMAL, Some(TRANSPARENT));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]   --> src/app/color.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |         status_bar.override_color(StateFlags::NORMAL, Some(&self.model.foreground_color));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::blue()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::red()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]   --> src/app/color.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     widget.override_color(StateFlags::NORMAL, Some(&RGBA::white()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |         status_bar.override_background_color(StateFlags::NORMAL, Some(TRANSPARENT));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]   --> src/app/color.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |         status_bar.override_color(StateFlags::NORMAL, Some(&self.model.foreground_color));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::blue()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_background_color`
[INFO] [stdout]   --> src/app/color.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::red()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]   --> src/app/color.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     widget.override_color(StateFlags::NORMAL, Some(&RGBA::white()));
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]    --> src/app/status_bar.rs:378:40
[INFO] [stdout]     |
[INFO] [stdout] 378 |             Color(color) => self.label.override_color(StateFlags::NORMAL, color.as_ref()),
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `gtk::WidgetExt::override_color`
[INFO] [stdout]    --> src/app/status_bar.rs:378:40
[INFO] [stdout]     |
[INFO] [stdout] 378 |             Color(color) => self.label.override_color(StateFlags::NORMAL, color.as_ref()),
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `answer`
[INFO] [stdout]    --> src/app/mod.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     answer: String, // TODO: is this field even used?
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `answer`
[INFO] [stdout]    --> src/app/mod.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     answer: String, // TODO: is this field even used?
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> tests/commands.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WidgetExt`
[INFO] [stdout]   --> tests/commands.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 | use gtk::{LabelExt, WidgetExt};
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> examples/simple.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `win`
[INFO] [stdout]    --> tests/commands.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let win = init_test::<Win>(()).unwrap();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `boolean`
[INFO] [stdout]   --> tests/commands.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     boolean: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> tests/commands.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(use_extern_macros)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> examples/simple.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(use_extern_macros)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> examples/main.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[macro_use]
[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: field is never read: `boolean`
[INFO] [stdout]    --> examples/main.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 269 |     boolean: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `custom_set`
[INFO] [stdout]    --> examples/main.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     custom_set: CustomSetting,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `title_len`
[INFO] [stdout]    --> examples/main.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     title_len: i64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]    --> examples/main.rs:273:5
[INFO] [stdout]     |
[INFO] [stdout] 273 |     width: i64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `window_title`
[INFO] [stdout]    --> examples/main.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     window_title: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 23s
[INFO] running `Command { std: "docker" "inspect" "7adb7c15bf2cacef4299bd4675569c00bbc27f3f2970f725c8247611d76e9e1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7adb7c15bf2cacef4299bd4675569c00bbc27f3f2970f725c8247611d76e9e1f", kill_on_drop: false }`
[INFO] [stdout] 7adb7c15bf2cacef4299bd4675569c00bbc27f3f2970f725c8247611d76e9e1f