Update to Rust v1.43.0 (#1123)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -25,7 +25,7 @@ If applicable, add screenshots to help explain your problem.
 
 **Environment:**
  - Yew version [e.g. v0.10, `master`]
- - Rust version [e.g. 1.42.0]
+ - Rust version [e.g. 1.43.0]
  - Target if relevant [e.g. `wasm32-unknown-emscripten`]
  - `stdweb` / `web-sys` version [e.g. web-sys v0.3.33]
  - OS: [e.g. macos]

yew-macro/tests/derive_props/fail.stderr

@@ -30,6 +30,7 @@ error[E0277]: the trait bound `t1::Value: std::default::Default` is not satisfie
   |                     ^^^^^^^^^^ the trait `std::default::Default` is not implemented for `t1::Value`
   |
   = note: required by `std::default::Default::default`
+  = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0599]: no method named `build` found for struct `t3::PropsBuilder<t3::PropsBuilderStep_missing_required_prop_value>` in the current scope
   --> $DIR/fail.rs:35:26
@@ -68,11 +69,13 @@ error[E0618]: expected function, found `{integer}`
 77 |         #[prop_or_else(123)]
    |                        ^^^ call expression requires function
 
-error[E0061]: this function takes 1 parameter but 0 parameters were supplied
+error[E0061]: this function takes 1 argument but 0 arguments were supplied
    --> $DIR/fail.rs:97:24
     |
 97  |         #[prop_or_else(foo)]
-    |                        ^^^ expected 1 parameter
+    |                        ^^^- supplied 0 arguments
+    |                        |
+    |                        expected 1 argument
 ...
 101 |     fn foo(bar: i32) -> String {
     |     -------------------------- defined here

yew-macro/tests/derive_props_test.rs

@@ -1,5 +1,5 @@
 #[allow(dead_code)]
-#[rustversion::attr(stable(1.42), test)]
+#[rustversion::attr(stable(1.43), test)]
 fn tests() {
     let t = trybuild::TestCases::new();
     t.pass("tests/derive_props/pass.rs");

yew-macro/tests/macro/html-block-fail.stderr

@@ -9,6 +9,7 @@ error[E0277]: `()` doesn't implement `std::fmt::Display`
   = note: required because of the requirements on the impl of `std::string::ToString` for `()`
   = note: required because of the requirements on the impl of `std::convert::From<()>` for `yew::virtual_dom::vnode::VNode`
   = note: required by `std::convert::From::from`
+  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: `()` doesn't implement `std::fmt::Display`
   --> $DIR/html-block-fail.rs:12:16
@@ -21,6 +22,7 @@ error[E0277]: `()` doesn't implement `std::fmt::Display`
    = note: required because of the requirements on the impl of `std::string::ToString` for `()`
    = note: required because of the requirements on the impl of `std::convert::From<()>` for `yew::virtual_dom::vnode::VNode`
    = note: required by `std::convert::From::from`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: `()` doesn't implement `std::fmt::Display`
   --> $DIR/html-block-fail.rs:15:17
@@ -33,3 +35,4 @@ error[E0277]: `()` doesn't implement `std::fmt::Display`
    = note: required because of the requirements on the impl of `std::string::ToString` for `()`
    = note: required because of the requirements on the impl of `std::convert::From<()>` for `yew::virtual_dom::vnode::VNode`
    = note: required because of the requirements on the impl of `std::convert::Into<yew::virtual_dom::vnode::VNode>` for `()`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

yew-macro/tests/macro/html-component-fail-unimplemented.stderr

@@ -1,17 +1,17 @@
 error[E0599]: no function or associated item named `new` found for struct `yew::virtual_dom::vcomp::VChild<std::string::String>` in the current scope
- --> $DIR/html-component-fail-unimplemented.rs:6:5
-  |
-6 |     html! { <String /> };
-  |     ^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `yew::virtual_dom::vcomp::VChild<std::string::String>`
-  |
-  = note: the method `new` exists but the following trait bounds were not satisfied:
-          `std::string::String : yew::html::Component`
-  = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+   --> $DIR/html-component-fail-unimplemented.rs:6:5
+    |
+6   |       html! { <String /> };
+    |       ^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `yew::virtual_dom::vcomp::VChild<std::string::String>`
+    |
+    = note: the method `new` exists but the following trait bounds were not satisfied:
+            `std::string::String: yew::html::Component`
+    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `std::string::String: yew::html::Component` is not satisfied
  --> $DIR/html-component-fail-unimplemented.rs:6:5
   |
 6 |     html! { <String /> };
   |     ^^^^^^^^^^^^^^^^^^^^^ the trait `yew::html::Component` is not implemented for `std::string::String`
   |
-  = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)