[INFO] fetching crate kas 0.0.2...
[INFO] checking kas-0.0.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate kas 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kas 0.0.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kas 0.0.2
[INFO] finished tweaking crates.io crate kas 0.0.2
[INFO] tweaked toml for crates.io crate kas 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 315fbaf4555313eed3ac55f25fbb329127481dcea52f346a324a9f303a6e48dc
[INFO] running `"docker" "start" "-a" "315fbaf4555313eed3ac55f25fbb329127481dcea52f346a324a9f303a6e48dc"`
[INFO] [stderr]    Compiling kas-macros v0.0.2
[INFO] [stderr]     Checking kas v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/layout_extern.rs:70:34
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn sync_size(&mut self, tk: &TkWidget);
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Button(&'a HasText),
[INFO] [stderr]    |                ^^^^^^^ help: use `dyn`: `dyn HasText`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Text(&'a HasText),
[INFO] [stderr]    |              ^^^^^^^ help: use `dyn`: `dyn HasText`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:20:15
[INFO] [stderr]    |
[INFO] [stderr] 20 |     Entry(&'a Editable),
[INFO] [stderr]    |               ^^^^^^^^ help: use `dyn`: `dyn Editable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/widget/mod.rs:144:44
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn get(&self, index: usize) -> Option<&Widget>;
[INFO] [stderr]     |                                            ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/widget/mod.rs:147:56
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn get_mut(&mut self, index: usize) -> Option<&mut Widget>;
[INFO] [stderr]     |                                                        ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn as_widget(&self) -> &Widget;
[INFO] [stderr]    |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:29:41
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn as_widget_mut(&mut self) -> &mut Widget;
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:46:38
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, num: u32) -> GuiResponse;
[INFO] [stderr]    |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:55:55
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn trigger_callback(&mut self, index: usize, tk: &TkWidget);
[INFO] [stderr]    |                                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:59:33
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn on_start(&mut self, tk: &TkWidget);
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fns: Vec<(Condition, &'static Fn(&mut W, &TkWidget))>,
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut W, &TkWidget)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:72:47
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fns: Vec<(Condition, &'static Fn(&mut W, &TkWidget))>,
[INFO] [stderr]    |                                               ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:116:48
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn add_callback(&mut self, f: &'static Fn(&mut W, &TkWidget),
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut W, &TkWidget)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:116:60
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn add_callback(&mut self, f: &'static Fn(&mut W, &TkWidget),
[INFO] [stderr]     |                                                            ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:129:29
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn as_widget(&self) -> &Widget { self }
[INFO] [stderr]     |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:130:41
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn as_widget_mut(&mut self) -> &mut Widget { self }
[INFO] [stderr]     |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:162:38
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, num: u32) -> GuiResponse {
[INFO] [stderr]     |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:180:55
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn trigger_callback(&mut self, index: usize, tk: &TkWidget) {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:185:33
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn on_start(&mut self, tk: &TkWidget) {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/toolkit.rs:52:41
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn add_rc(&self, window: Rc<RefCell<Window>>);
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Window`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:17:33
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn set_text(&mut self, tk: &TkWidget, text: &str);
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/control.rs:59:33
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/control.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:56:29
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn as_widget(&self) -> &Widget { self }
[INFO] [stderr]    |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn as_widget_mut(&mut self) -> &mut Widget { self }
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_action(&mut self, _tk: &TkWidget, _action: Action, _num: u32) -> GuiResponse
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:76:57
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn trigger_callback(&mut self, _index: usize, _tk: &TkWidget) {}
[INFO] [stderr]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:77:34
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn on_start(&mut self, _tk: &TkWidget) {}
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/display.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:123:39
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:140:39
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/event.rs:96:38
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, number: u32) -> Self::Response;
[INFO] [stderr]    |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/layout_extern.rs:70:34
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn sync_size(&mut self, tk: &TkWidget);
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Button(&'a HasText),
[INFO] [stderr]    |                ^^^^^^^ help: use `dyn`: `dyn HasText`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Text(&'a HasText),
[INFO] [stderr]    |              ^^^^^^^ help: use `dyn`: `dyn HasText`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/widget/class.rs:20:15
[INFO] [stderr]    |
[INFO] [stderr] 20 |     Entry(&'a Editable),
[INFO] [stderr]    |               ^^^^^^^^ help: use `dyn`: `dyn Editable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/widget/mod.rs:144:44
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn get(&self, index: usize) -> Option<&Widget>;
[INFO] [stderr]     |                                            ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/widget/mod.rs:147:56
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn get_mut(&mut self, index: usize) -> Option<&mut Widget>;
[INFO] [stderr]     |                                                        ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn as_widget(&self) -> &Widget;
[INFO] [stderr]    |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:29:41
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn as_widget_mut(&mut self) -> &mut Widget;
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:46:38
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, num: u32) -> GuiResponse;
[INFO] [stderr]    |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:55:55
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn trigger_callback(&mut self, index: usize, tk: &TkWidget);
[INFO] [stderr]    |                                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:59:33
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn on_start(&mut self, tk: &TkWidget);
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fns: Vec<(Condition, &'static Fn(&mut W, &TkWidget))>,
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut W, &TkWidget)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/window.rs:72:47
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fns: Vec<(Condition, &'static Fn(&mut W, &TkWidget))>,
[INFO] [stderr]    |                                               ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:116:48
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn add_callback(&mut self, f: &'static Fn(&mut W, &TkWidget),
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut W, &TkWidget)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:116:60
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn add_callback(&mut self, f: &'static Fn(&mut W, &TkWidget),
[INFO] [stderr]     |                                                            ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:129:29
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn as_widget(&self) -> &Widget { self }
[INFO] [stderr]     |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:130:41
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn as_widget_mut(&mut self) -> &mut Widget { self }
[INFO] [stderr]     |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:162:38
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, num: u32) -> GuiResponse {
[INFO] [stderr]     |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:180:55
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn trigger_callback(&mut self, index: usize, tk: &TkWidget) {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/window.rs:185:33
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn on_start(&mut self, tk: &TkWidget) {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/toolkit.rs:52:41
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn add_rc(&self, window: Rc<RefCell<Window>>);
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Window`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:17:33
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn set_text(&mut self, tk: &TkWidget, text: &str);
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/control.rs:59:33
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/control.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:56:29
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn as_widget(&self) -> &Widget { self }
[INFO] [stderr]    |                             ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn as_widget_mut(&mut self) -> &mut Widget { self }
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Widget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_action(&mut self, _tk: &TkWidget, _action: Action, _num: u32) -> GuiResponse
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:76:57
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn trigger_callback(&mut self, _index: usize, _tk: &TkWidget) {}
[INFO] [stderr]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/dialog.rs:77:34
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn on_start(&mut self, _tk: &TkWidget) {}
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/display.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn set_text(&mut self, tk: &TkWidget, text: &str) {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:123:39
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/display.rs:140:39
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn handle_action(&mut self, _tk: &TkWidget, action: Action, num: u32) -> Self::Response {
[INFO] [stderr]     |                                       ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/event.rs:96:38
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn handle_action(&mut self, tk: &TkWidget, action: Action, number: u32) -> Self::Response;
[INFO] [stderr]    |                                      ^^^^^^^^ help: use `dyn`: `dyn TkWidget`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `unrestricted_attribute_tokens` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(unrestricted_attribute_tokens)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_crate_self` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(extern_crate_self)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `unrestricted_attribute_tokens` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(unrestricted_attribute_tokens)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_crate_self` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(extern_crate_self)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.71s
[INFO] running `"docker" "inspect" "315fbaf4555313eed3ac55f25fbb329127481dcea52f346a324a9f303a6e48dc"`
[INFO] running `"docker" "rm" "-f" "315fbaf4555313eed3ac55f25fbb329127481dcea52f346a324a9f303a6e48dc"`
[INFO] [stdout] 315fbaf4555313eed3ac55f25fbb329127481dcea52f346a324a9f303a6e48dc