ill_formed_attribute_input -> deny

src/librustc/lint/builtin.rs

@@ -408,7 +408,7 @@ declare_lint! {
 pub mod parser {
     declare_lint! {
         pub ILL_FORMED_ATTRIBUTE_INPUT,
-        Warn,
+        Deny,
         "ill-formed attribute inputs that were previously accepted and used in practice",
         @future_incompatible = super::FutureIncompatibleInfo {
             reference: "issue #57571 <https://github.com/rust-lang/rust/issues/57571>",

src/test/ui/feature-gate/issue-43106-gating-of-inline.rs

@@ -15,7 +15,7 @@ mod inline {
     //~^ ERROR attribute should be applied to function or closure
 
     #[inline = "2100"] fn f() { }
-    //~^ WARN attribute must be of the form
+    //~^ ERROR attribute must be of the form
     //~| WARN this was previously accepted
 
     #[inline] struct S;

src/test/ui/feature-gate/issue-43106-gating-of-inline.stderr

@@ -1,10 +1,10 @@
-warning: attribute must be of the form `#[inline]` or `#[inline(always|never)]`
+error: attribute must be of the form `#[inline]` or `#[inline(always|never)]`
   --> $DIR/issue-43106-gating-of-inline.rs:17:5
    |
 LL |     #[inline = "2100"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^
    |
-   = note: `#[warn(ill_formed_attribute_input)]` on by default
+   = note: `#[deny(ill_formed_attribute_input)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
@@ -47,6 +47,6 @@ error[E0518]: attribute should be applied to function or closure
 LL |     #[inline] impl S { }
    |     ^^^^^^^^^ ---------- not a function or closure
 
-error: aborting due to 5 previous errors
+error: aborting due to 6 previous errors
 
 For more information about this error, try `rustc --explain E0518`.

src/test/ui/malformed/malformed-regressions.rs

@@ -1,18 +1,12 @@
-// build-pass (FIXME(62277): could be check-pass?)
+#[doc] //~ ERROR attribute must be of the form
+//~^ WARN this was previously accepted
+#[ignore()] //~ ERROR attribute must be of the form
+//~^ WARN this was previously accepted
+#[inline = ""] //~ ERROR attribute must be of the form
+//~^ WARN this was previously accepted
+#[link] //~ ERROR attribute must be of the form
+//~^ WARN this was previously accepted
+#[link = ""] //~ ERROR attribute must be of the form
+//~^ WARN this was previously accepted
 
-#[doc]
-//~^ WARN attribute must be of the form
-//~| WARN this was previously accepted
-#[ignore()]
-//~^ WARN attribute must be of the form
-//~| WARN this was previously accepted
-#[inline = ""]
-//~^ WARN attribute must be of the form
-//~| WARN this was previously accepted
-#[link]
-//~^WARN attribute must be of the form
-//~| WARN this was previously accepted
-#[link = ""]
-//~^ WARN attribute must be of the form
-//~| WARN this was previously accepted
 fn main() {}

src/test/ui/malformed/malformed-regressions.stderr

@@ -1,15 +1,15 @@
-warning: attribute must be of the form `#[doc(hidden|inline|...)]` or `#[doc = "string"]`
-  --> $DIR/malformed-regressions.rs:3:1
+error: attribute must be of the form `#[doc(hidden|inline|...)]` or `#[doc = "string"]`
+  --> $DIR/malformed-regressions.rs:1:1
    |
 LL | #[doc]
    | ^^^^^^
    |
-   = note: `#[warn(ill_formed_attribute_input)]` on by default
+   = note: `#[deny(ill_formed_attribute_input)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
-warning: attribute must be of the form `#[ignore]` or `#[ignore = "reason"]`
-  --> $DIR/malformed-regressions.rs:6:1
+error: attribute must be of the form `#[ignore]` or `#[ignore = "reason"]`
+  --> $DIR/malformed-regressions.rs:3:1
    |
 LL | #[ignore()]
    | ^^^^^^^^^^^
@@ -17,8 +17,8 @@ LL | #[ignore()]
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
-warning: attribute must be of the form `#[inline]` or `#[inline(always|never)]`
-  --> $DIR/malformed-regressions.rs:9:1
+error: attribute must be of the form `#[inline]` or `#[inline(always|never)]`
+  --> $DIR/malformed-regressions.rs:5:1
    |
 LL | #[inline = ""]
    | ^^^^^^^^^^^^^^
@@ -26,8 +26,8 @@ LL | #[inline = ""]
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
-warning: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
-  --> $DIR/malformed-regressions.rs:12:1
+error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
+  --> $DIR/malformed-regressions.rs:7:1
    |
 LL | #[link]
    | ^^^^^^^
@@ -35,8 +35,8 @@ LL | #[link]
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
-warning: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
-  --> $DIR/malformed-regressions.rs:15:1
+error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...")]`
+  --> $DIR/malformed-regressions.rs:9:1
    |
 LL | #[link = ""]
    | ^^^^^^^^^^^^
@@ -44,3 +44,5 @@ LL | #[link = ""]
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
+error: aborting due to 5 previous errors
+