Diagnostics should not end with a full stop

Author: varkor

src/libcore/lib.rs

@@ -44,7 +44,7 @@
 // Here we explicitly #[cfg]-out this whole crate when testing. If we don't do
 // this, both the generated test artifact and the linked libtest (which
 // transitively includes libcore) will both define the same set of lang items,
-// and this will cause the E0152 "duplicate lang item found" error. See
+// and this will cause the E0152 "found duplicate lang item" error. See
 // discussion in #50466 for details.
 //
 // This cfg won't affect doc tests.

src/librustc/middle/lang_items.rs

@@ -184,7 +184,7 @@ impl LanguageItemCollector<'tcx> {
                         self.tcx.sess,
                         span,
                         E0152,
-                        "duplicate lang item found: `{}`.",
+                        "found duplicate lang item `{}`",
                         name
                     ),
                     None => {
@@ -206,12 +206,12 @@ impl LanguageItemCollector<'tcx> {
                     },
                 };
                 if let Some(span) = self.tcx.hir().span_if_local(original_def_id) {
-                    err.span_note(span, "first defined here.");
+                    err.span_note(span, "first defined here");
                 } else {
                     match self.tcx.extern_crate(original_def_id) {
                         Some(ExternCrate {dependency_of, ..}) => {
                             err.note(&format!(
-                            "first defined in crate `{}` (which `{}` depends on).",
+                            "first defined in crate `{}` (which `{}` depends on)",
                                       self.tcx.crate_name(original_def_id.krate),
                                       self.tcx.crate_name(*dependency_of)));
                         },

src/librustc_passes/diagnostic_items.rs

@@ -73,7 +73,7 @@ fn collect_item(
                 )),
             };
             if let Some(span) = tcx.hir().span_if_local(original_def_id) {
-                err.span_note(span, "first defined here.");
+                err.span_note(span, "first defined here");
             } else {
                 err.note(&format!(
                     "first defined in crate `{}`.",

src/librustc_resolve/lib.rs

@@ -2006,7 +2006,7 @@ impl<'a> Resolver<'a> {
                             continue;
                         }
                     }
-                    let msg = "there are too many initial `super`s.".to_string();
+                    let msg = "there are too many leading `super` keywords".to_string();
                     return PathResult::Failed {
                         span: ident.span,
                         label: msg,

src/librustc_typeck/check/mod.rs

@@ -1664,7 +1664,7 @@ fn check_opaque_for_cycles<'tcx>(
         if let hir::OpaqueTyOrigin::AsyncFn = origin {
             struct_span_err!(tcx.sess, span, E0733, "recursion in an `async fn` requires boxing",)
                 .span_label(span, "recursive `async fn`")
-                .note("a recursive `async fn` must be rewritten to return a boxed `dyn Future`.")
+                .note("a recursive `async fn` must be rewritten to return a boxed `dyn Future`")
                 .emit();
         } else {
             let mut err =

src/libstd/panicking.rs

@@ -199,7 +199,7 @@ fn default_hook(info: &PanicInfo<'_>) {
                     let _ = writeln!(
                         err,
                         "note: run with `RUST_BACKTRACE=1` \
-                                           environment variable to display a backtrace."
+                                           environment variable to display a backtrace"
                     );
                 }
             }

src/test/compile-fail/panic-handler-twice.rs

@@ -10,7 +10,7 @@ use core::panic::PanicInfo;
 
 #[panic_handler]
 fn panic(info: &PanicInfo) -> ! {
-    //~^ error duplicate lang item found: `panic_impl`
+    //~^ ERROR found duplicate lang item `panic_impl`
     loop {}
 }
 

src/test/ui/async-await/mutually-recursive-async-impl-trait-type.stderr

@@ -4,15 +4,15 @@ error[E0733]: recursion in an `async fn` requires boxing
 LL | async fn rec_1() {
    |                  ^ recursive `async fn`
    |
-   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`.
+   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`
 
 error[E0733]: recursion in an `async fn` requires boxing
   --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18
    |
 LL | async fn rec_2() {
    |                  ^ recursive `async fn`
    |
-   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`.
+   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`
 
 error: aborting due to 2 previous errors
 

src/test/ui/async-await/recursive-async-impl-trait-type.stderr

@@ -4,7 +4,7 @@ error[E0733]: recursion in an `async fn` requires boxing
 LL | async fn recursive_async_function() -> () {
    |                                        ^^ recursive `async fn`
    |
-   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`.
+   = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future`
 
 error: aborting due to previous error
 

src/test/ui/consts/miri_unleashed/mutable_const2.stderr

@@ -11,7 +11,7 @@ LL | const MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *m
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', src/librustc_errors/lib.rs:346:17
-note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
+note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 error: internal compiler error: unexpected panic