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[INFO] checking sindreij/rusty-elm against master#4c60a0ea5b2385d7400df9db1ad04e96f2a4c154 for 92191_revert
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Frusty-elm" "/workspace/builds/worker-75/source", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/sindreij/rusty-elm already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Checking willow v0.1.0 (/opt/rustwide/workdir/willow)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> willow/src/html.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .join("\n");;
[INFO] [stdout]    |                         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> willow/src/html.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .join("\n");;
[INFO] [stdout]    |                         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/html.rs:69:75
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<Fn(web_sys::Event)>>>>);
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 - pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<Fn(web_sys::Event)>>>>);
[INFO] [stdout] 69 + pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<dyn Fn(web_sys::Event)>>>>);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:172:46
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub struct RcEventClosure<Input, Msg>(pub Rc<EventClosure<Input, Msg>>);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 172 - pub struct RcEventClosure<Input, Msg>(pub Rc<EventClosure<Input, Msg>>);
[INFO] [stdout] 172 + pub struct RcEventClosure<Input, Msg>(pub Rc<dyn EventClosure<Input, Msg>>);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub view: Box<Fn(&Model) -> Html<Msg>>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 -     pub view: Box<Fn(&Model) -> Html<Msg>>,
[INFO] [stdout] 10 +     pub view: Box<dyn Fn(&Model) -> Html<Msg>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout] 11 +     pub update: Box<dyn Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout] 11 +     pub update: Box<Fn(&Msg, &mut Model) -> Box<dyn Cmd<Msg>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking example-counter v0.1.0 (/opt/rustwide/workdir/examples/counter)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:138:32
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 138 -     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout] 138 +     fn eq_rc(&self, other: &Rc<dyn EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking example-todomvc v0.1.0 (/opt/rustwide/workdir/examples/todomvc)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:122:74
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<Fn(web_sys::Event)>) {
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 -     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<Fn(web_sys::Event)>) {
[INFO] [stdout] 122 +     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<dyn Fn(web_sys::Event)>) {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:160:32
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 160 -     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout] 160 +     fn eq_rc(&self, other: &Rc<dyn EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:24:47
[INFO] [stdout]    |
[INFO] [stdout] 24 |         UpdateFn: Fn(&Msg, &mut Model) -> Box<Cmd<Msg>> + 'static,
[INFO] [stdout]    |                                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 -         UpdateFn: Fn(&Msg, &mut Model) -> Box<Cmd<Msg>> + 'static,
[INFO] [stdout] 24 +         UpdateFn: Fn(&Msg, &mut Model) -> Box<dyn Cmd<Msg>> + 'static,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/html.rs:69:75
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<Fn(web_sys::Event)>>>>);
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 - pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<Fn(web_sys::Event)>>>>);
[INFO] [stdout] 69 + pub struct JsClosure(pub Rc<RefCell<Option<wasm_bindgen::closure::Closure<dyn Fn(web_sys::Event)>>>>);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:172:46
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub struct RcEventClosure<Input, Msg>(pub Rc<EventClosure<Input, Msg>>);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 172 - pub struct RcEventClosure<Input, Msg>(pub Rc<EventClosure<Input, Msg>>);
[INFO] [stdout] 172 + pub struct RcEventClosure<Input, Msg>(pub Rc<dyn EventClosure<Input, Msg>>);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub view: Box<Fn(&Model) -> Html<Msg>>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 -     pub view: Box<Fn(&Model) -> Html<Msg>>,
[INFO] [stdout] 10 +     pub view: Box<dyn Fn(&Model) -> Html<Msg>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout] 11 +     pub update: Box<dyn Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     pub update: Box<Fn(&Msg, &mut Model) -> Box<Cmd<Msg>>>,
[INFO] [stdout] 11 +     pub update: Box<Fn(&Msg, &mut Model) -> Box<dyn Cmd<Msg>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:138:32
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 138 -     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout] 138 +     fn eq_rc(&self, other: &Rc<dyn EventClosure<Input, Msg>>) -> bool;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:122:74
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<Fn(web_sys::Event)>) {
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 -     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<Fn(web_sys::Event)>) {
[INFO] [stdout] 122 +     pub fn set_js_closure(&self, closure: wasm_bindgen::closure::Closure<dyn Fn(web_sys::Event)>) {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:160:32
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 160 -     fn eq_rc(&self, other: &Rc<EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout] 160 +     fn eq_rc(&self, other: &Rc<dyn EventClosure<Input, Msg>>) -> bool {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> willow/src/program.rs:24:47
[INFO] [stdout]    |
[INFO] [stdout] 24 |         UpdateFn: Fn(&Msg, &mut Model) -> Box<Cmd<Msg>> + 'static,
[INFO] [stdout]    |                                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 -         UpdateFn: Fn(&Msg, &mut Model) -> Box<Cmd<Msg>> + 'static,
[INFO] [stdout] 24 +         UpdateFn: Fn(&Msg, &mut Model) -> Box<dyn Cmd<Msg>> + 'static,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:161:31
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let other = other as &Any;
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 -         let other = other as &Any;
[INFO] [stdout] 161 +         let other = other as &dyn Any;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/html.rs:161:31
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let other = other as &Any;
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 -         let other = other as &Any;
[INFO] [stdout] 161 +         let other = other as &dyn Any;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/render.rs:344:27
[INFO] [stdout]     |
[INFO] [stdout] 344 |                 }) as Box<Fn(_)>);
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 344 -                 }) as Box<Fn(_)>);
[INFO] [stdout] 344 +                 }) as Box<dyn Fn(_)>);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> willow/src/render.rs:344:27
[INFO] [stdout]     |
[INFO] [stdout] 344 |                 }) as Box<Fn(_)>);
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 344 -                 }) as Box<Fn(_)>);
[INFO] [stdout] 344 +                 }) as Box<dyn Fn(_)>);
[INFO] [stdout]     | 
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/counter/src/app.rs:23:48
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout] 23 + fn update(msg: &Msg, model: &mut Model) -> Box<dyn Cmd<Msg>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/counter/src/app.rs:23:48
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 - fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout] 23 + fn update(msg: &Msg, model: &mut Model) -> Box<dyn Cmd<Msg>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/todomvc/src/app.rs:61:48
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 - fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout] 61 + fn update(msg: &Msg, model: &mut Model) -> Box<dyn Cmd<Msg>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/todomvc/src/app.rs:61:48
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 - fn update(msg: &Msg, model: &mut Model) -> Box<Cmd<Msg>> {
[INFO] [stdout] 61 + fn update(msg: &Msg, model: &mut Model) -> Box<dyn Cmd<Msg>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ab59de00135aa31a49e6ac257cbd2158a054c3a03efd6fe842a1b9d4638a8b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab59de00135aa31a49e6ac257cbd2158a054c3a03efd6fe842a1b9d4638a8b8", kill_on_drop: false }`
[INFO] [stdout] 7ab59de00135aa31a49e6ac257cbd2158a054c3a03efd6fe842a1b9d4638a8b8