[INFO] updating cached repository https://github.com/tamamu/penna-text-editor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] d3c0a70c216755465e1d0cf65a1fa3be37cab65a
[INFO] checking tamamu/penna-text-editor against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamamu%2Fpenna-text-editor" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tamamu/penna-text-editor on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tamamu/penna-text-editor
[INFO] finished tweaking git repo https://github.com/tamamu/penna-text-editor
[INFO] tweaked toml for git repo https://github.com/tamamu/penna-text-editor written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tamamu/penna-text-editor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gdk.git`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gtk.git`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/cairo`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gdk-pixbuf`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/sys`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gio`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/glib`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/pango`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/atk`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a245ef1381e72b6343c5ffb6309a532960f475ca31fc65c319a1fd996bd40ed
[INFO] running `"docker" "start" "-a" "6a245ef1381e72b6343c5ffb6309a532960f475ca31fc65c319a1fd996bd40ed"`
[INFO] [stderr]    Compiling gio v0.8.1 (https://github.com/gtk-rs/gio#5fbd3948)
[INFO] [stderr]    Compiling gdk v0.12.1 (https://github.com/gtk-rs/gdk.git#c5888869)
[INFO] [stderr]    Compiling gtk v0.8.1 (https://github.com/gtk-rs/gtk.git#81be7817)
[INFO] [stderr]    Compiling glib-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling gobject-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling gio-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling gdk-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling gtk-sys v0.9.2 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2 (https://github.com/gtk-rs/cairo#9fac021d)
[INFO] [stderr]    Compiling pango-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling atk-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling cairo-rs v0.8.1 (https://github.com/gtk-rs/cairo#9fac021d)
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1 (https://github.com/gtk-rs/sys#6bd0cab6)
[INFO] [stderr]    Compiling atk v0.8.0 (https://github.com/gtk-rs/atk#02f1fcb5)
[INFO] [stderr]    Compiling pango v0.8.0 (https://github.com/gtk-rs/pango#84de9bac)
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0 (https://github.com/gtk-rs/gdk-pixbuf#a5ec8568)
[INFO] [stderr]     Checking glib v0.9.3 (https://github.com/gtk-rs/glib#61c06876)
[INFO] [stderr]     Checking penna v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `gtk::ImageMenuItem`
[INFO] [stderr]   --> src/main.rs:11:70
[INFO] [stderr]    |
[INFO] [stderr] 11 | use gtk::{Window, WindowType, HeaderBar, Box, Orientation, TextView, ImageMenuItem, MenuButton,
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ no `ImageMenuItem` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Mutex`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::sync::Mutex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AccelGroup`
[INFO] [stderr]   --> src/main.rs:12:49
[INFO] [stderr]    |
[INFO] [stderr] 12 |           Image, Popover, TextBuffer, TextIter, AccelGroup, Button};
[INFO] [stderr]    |                                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EventKey`, `ModifierType`
[INFO] [stderr]   --> src/main.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | use gdk::{EventKey, ModifierType};
[INFO] [stderr]    |           ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `gtk::ImageMenuItem`
[INFO] [stderr]   --> src/main.rs:11:70
[INFO] [stderr]    |
[INFO] [stderr] 11 | use gtk::{Window, WindowType, HeaderBar, Box, Orientation, TextView, ImageMenuItem, MenuButton,
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ no `ImageMenuItem` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Mutex`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::sync::Mutex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AccelGroup`
[INFO] [stderr]   --> src/main.rs:12:49
[INFO] [stderr]    |
[INFO] [stderr] 12 |           Image, Popover, TextBuffer, TextIter, AccelGroup, Button};
[INFO] [stderr]    |                                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EventKey`, `ModifierType`
[INFO] [stderr]   --> src/main.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | use gdk::{EventKey, ModifierType};
[INFO] [stderr]    |           ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0631]: type mismatch in closure arguments
[INFO] [stderr]   --> src/main.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |           self.buffer.connect_insert_text(move |buf: &TextBuffer,
[INFO] [stderr]    |  _____________________^^^^^^^^^^^^^^^^^^^_-
[INFO] [stderr]    | |                     |
[INFO] [stderr]    | |                     expected signature of `for<'r, 's> fn(&'r gtk::TextBuffer, gtk::TextIter, &'s str) -> _`
[INFO] [stderr] 71 | |                                               iter: &TextIter,
[INFO] [stderr] 72 | |                                               new_text: &str| {
[INFO] [stderr] 73 | |             if ua_ptr3.get() == false {
[INFO] [stderr] ...  |
[INFO] [stderr] 87 | |             });
[INFO] [stderr] 88 | |         });
[INFO] [stderr]    | |_________- found signature of `for<'r, 's, 't0> fn(&'r gtk::TextBuffer, &'s gtk::TextIter, &'t0 str) -> _`
[INFO] [stderr] 
[INFO] [stderr] error[E0631]: type mismatch in closure arguments
[INFO] [stderr]   --> src/main.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |           self.buffer.connect_insert_text(move |buf: &TextBuffer,
[INFO] [stderr]    |  _____________________^^^^^^^^^^^^^^^^^^^_-
[INFO] [stderr]    | |                     |
[INFO] [stderr]    | |                     expected signature of `for<'r, 's> fn(&'r gtk::TextBuffer, gtk::TextIter, &'s str) -> _`
[INFO] [stderr] 71 | |                                               iter: &TextIter,
[INFO] [stderr] 72 | |                                               new_text: &str| {
[INFO] [stderr] 73 | |             if ua_ptr3.get() == false {
[INFO] [stderr] ...  |
[INFO] [stderr] 87 | |             });
[INFO] [stderr] 88 | |         });
[INFO] [stderr]    | |_________- found signature of `for<'r, 's, 't0> fn(&'r gtk::TextBuffer, &'s gtk::TextIter, &'t0 str) -> _`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:103:27
[INFO] [stderr]     |
[INFO] [stderr] 103 |                     text: text,
[INFO] [stderr]     |                           ^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           expected struct `std::string::String`, found struct `glib::gstring::GString`
[INFO] [stderr]     |                           help: try using a conversion method: `text.to_string()`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:103:27
[INFO] [stderr]     |
[INFO] [stderr] 103 |                     text: text,
[INFO] [stderr]     |                           ^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           expected struct `std::string::String`, found struct `glib::gstring::GString`
[INFO] [stderr]     |                           help: try using a conversion method: `text.to_string()`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:181:50
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let undo_button = Button::new_from_icon_name("edit-undo", 24);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some("edit-undo")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:181:50
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let undo_button = Button::new_from_icon_name("edit-undo", 24);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some("edit-undo")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:181:63
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let undo_button = Button::new_from_icon_name("edit-undo", 24);
[INFO] [stderr]     |                                                               ^^
[INFO] [stderr]     |                                                               |
[INFO] [stderr]     |                                                               expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                               help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:181:63
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let undo_button = Button::new_from_icon_name("edit-undo", 24);
[INFO] [stderr]     |                                                               ^^
[INFO] [stderr]     |                                                               |
[INFO] [stderr]     |                                                               expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                               help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:186:50
[INFO] [stderr]     |
[INFO] [stderr] 186 |     let redo_button = Button::new_from_icon_name("edit-redo", 24);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some("edit-redo")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:186:50
[INFO] [stderr]     |
[INFO] [stderr] 186 |     let redo_button = Button::new_from_icon_name("edit-redo", 24);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some("edit-redo")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:186:63
[INFO] [stderr]     |
[INFO] [stderr] 186 |     let redo_button = Button::new_from_icon_name("edit-redo", 24);
[INFO] [stderr]     |                                                               ^^
[INFO] [stderr]     |                                                               |
[INFO] [stderr]     |                                                               expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                               help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:186:63
[INFO] [stderr]     |
[INFO] [stderr] 186 |     let redo_button = Button::new_from_icon_name("edit-redo", 24);
[INFO] [stderr]     |                                                               ^^
[INFO] [stderr]     |                                                               |
[INFO] [stderr]     |                                                               expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                               help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:194:48
[INFO] [stderr]     |
[INFO] [stderr] 194 |     let gears_icon = Image::new_from_icon_name("open-menu", 24);
[INFO] [stderr]     |                                                ^^^^^^^^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                help: try using a variant of the expected enum: `Some("open-menu")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:194:48
[INFO] [stderr]     |
[INFO] [stderr] 194 |     let gears_icon = Image::new_from_icon_name("open-menu", 24);
[INFO] [stderr]     |                                                ^^^^^^^^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                                help: try using a variant of the expected enum: `Some("open-menu")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:194:61
[INFO] [stderr]     |
[INFO] [stderr] 194 |     let gears_icon = Image::new_from_icon_name("open-menu", 24);
[INFO] [stderr]     |                                                             ^^
[INFO] [stderr]     |                                                             |
[INFO] [stderr]     |                                                             expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                             help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:194:61
[INFO] [stderr]     |
[INFO] [stderr] 194 |     let gears_icon = Image::new_from_icon_name("open-menu", 24);
[INFO] [stderr]     |                                                             ^^
[INFO] [stderr]     |                                                             |
[INFO] [stderr]     |                                                             expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                             help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:195:47
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let open_icon = Image::new_from_icon_name("document-open", 24);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                               |
[INFO] [stderr]     |                                               expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                               help: try using a variant of the expected enum: `Some("document-open")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:195:47
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let open_icon = Image::new_from_icon_name("document-open", 24);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                               |
[INFO] [stderr]     |                                               expected enum `std::option::Option`, found `&str`
[INFO] [stderr]     |                                               help: try using a variant of the expected enum: `Some("document-open")`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&str>`
[INFO] [stderr]             found reference `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:195:64
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let open_icon = Image::new_from_icon_name("document-open", 24);
[INFO] [stderr]     |                                                                ^^
[INFO] [stderr]     |                                                                |
[INFO] [stderr]     |                                                                expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                                help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:195:64
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let open_icon = Image::new_from_icon_name("document-open", 24);
[INFO] [stderr]     |                                                                ^^
[INFO] [stderr]     |                                                                |
[INFO] [stderr]     |                                                                expected enum `gtk::IconSize`, found integer
[INFO] [stderr]     |                                                                help: try using a variant of the expected enum: `gtk::IconSize::__Unknown(24)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:199:32
[INFO] [stderr]     |
[INFO] [stderr] 199 |     file_menu_button.set_image(&gears_icon);
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                expected enum `std::option::Option`, found `&gtk::Image`
[INFO] [stderr]     |                                help: try using a variant of the expected enum: `Some(&gears_icon)`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&_>`
[INFO] [stderr]             found reference `&gtk::Image`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0432, E0631.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `penna`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:199:32
[INFO] [stderr]     |
[INFO] [stderr] 199 |     file_menu_button.set_image(&gears_icon);
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                expected enum `std::option::Option`, found `&gtk::Image`
[INFO] [stderr]     |                                help: try using a variant of the expected enum: `Some(&gears_icon)`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<&_>`
[INFO] [stderr]             found reference `&gtk::Image`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0432, E0631.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `penna`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6a245ef1381e72b6343c5ffb6309a532960f475ca31fc65c319a1fd996bd40ed"`
[INFO] running `"docker" "rm" "-f" "6a245ef1381e72b6343c5ffb6309a532960f475ca31fc65c319a1fd996bd40ed"`
[INFO] [stdout] 6a245ef1381e72b6343c5ffb6309a532960f475ca31fc65c319a1fd996bd40ed
