Rollup merge of rust-lang#95910 - ehuss:fix-crate-type-duplicate, r=Dylan-DPC

matthiaskrgr · web-flow · commit 1b364ae5d6e0 · 2022-04-12T08:46:59.000+02:00
Fix crate_type attribute to not warn on duplicates In rust-lang#88681 I accidentally marked the `crate_type` attribute as only allowing a single attribute. However, multiple attributes are allowed (they are joined together [here](https://github.com/rust-lang/rust/blob/027a232755fa9728e9699337267f6675dfd0a8ba/compiler/rustc_interface/src/util.rs#L530-L542)). This fixes it to not report a warning if duplicates are found. Closes rust-lang#95902
diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs
@@ -310,7 +310,7 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
 
     // Crate properties:
     ungated!(crate_name, CrateLevel, template!(NameValueStr: "name"), FutureWarnFollowing),
-    ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|..."), FutureWarnFollowing),
+    ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|..."), DuplicatesOk),
     // crate_id is deprecated
     ungated!(crate_id, CrateLevel, template!(NameValueStr: "ignored"), FutureWarnFollowing),
 
diff --git a/src/test/ui/lint/unused/unused-attr-duplicate.rs b/src/test/ui/lint/unused/unused-attr-duplicate.rs
@@ -13,9 +13,6 @@
 #![crate_name = "unused_attr_duplicate"]
 #![crate_name = "unused_attr_duplicate2"] //~ ERROR unused attribute
 //~^ WARN this was previously accepted
-#![crate_type = "bin"]
-#![crate_type = "rlib"] //~ ERROR unused attribute
-//~^ WARN this was previously accepted
 #![recursion_limit = "128"]
 #![recursion_limit = "256"] //~ ERROR unused attribute
 //~^ WARN this was previously accepted
diff --git a/src/test/ui/lint/unused/unused-attr-duplicate.stderr b/src/test/ui/lint/unused/unused-attr-duplicate.stderr
@@ -1,5 +1,5 @@
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:36:1
+  --> $DIR/unused-attr-duplicate.rs:33:1
    |
 LL | #[no_link]
    | ^^^^^^^^^^ help: remove this attribute
@@ -10,180 +10,180 @@ note: the lint level is defined here
 LL | #![deny(unused_attributes)]
    |         ^^^^^^^^^^^^^^^^^
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:35:1
+  --> $DIR/unused-attr-duplicate.rs:32:1
    |
 LL | #[no_link]
    | ^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:40:1
+  --> $DIR/unused-attr-duplicate.rs:37:1
    |
 LL | #[macro_use]
    | ^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:39:1
+  --> $DIR/unused-attr-duplicate.rs:36:1
    |
 LL | #[macro_use]
    | ^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:50:1
+  --> $DIR/unused-attr-duplicate.rs:47:1
    |
 LL | #[path = "bar.rs"]
    | ^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:49:1
+  --> $DIR/unused-attr-duplicate.rs:46:1
    |
 LL | #[path = "auxiliary/lint_unused_extern_crate.rs"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:56:1
+  --> $DIR/unused-attr-duplicate.rs:53:1
    |
 LL | #[ignore = "some text"]
    | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:55:1
+  --> $DIR/unused-attr-duplicate.rs:52:1
    |
 LL | #[ignore]
    | ^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:58:1
+  --> $DIR/unused-attr-duplicate.rs:55:1
    |
 LL | #[should_panic(expected = "values don't match")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:57:1
+  --> $DIR/unused-attr-duplicate.rs:54:1
    |
 LL | #[should_panic]
    | ^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:63:1
+  --> $DIR/unused-attr-duplicate.rs:60:1
    |
 LL | #[must_use = "some message"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:62:1
+  --> $DIR/unused-attr-duplicate.rs:59:1
    |
 LL | #[must_use]
    | ^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:69:1
+  --> $DIR/unused-attr-duplicate.rs:66:1
    |
 LL | #[non_exhaustive]
    | ^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:68:1
+  --> $DIR/unused-attr-duplicate.rs:65:1
    |
 LL | #[non_exhaustive]
    | ^^^^^^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:73:1
+  --> $DIR/unused-attr-duplicate.rs:70:1
    |
 LL | #[automatically_derived]
    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:72:1
+  --> $DIR/unused-attr-duplicate.rs:69:1
    |
 LL | #[automatically_derived]
    | ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:77:1
+  --> $DIR/unused-attr-duplicate.rs:74:1
    |
 LL | #[inline(never)]
    | ^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:76:1
+  --> $DIR/unused-attr-duplicate.rs:73:1
    |
 LL | #[inline(always)]
    | ^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:80:1
+  --> $DIR/unused-attr-duplicate.rs:77:1
    |
 LL | #[cold]
    | ^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:79:1
+  --> $DIR/unused-attr-duplicate.rs:76:1
    |
 LL | #[cold]
    | ^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:82:1
+  --> $DIR/unused-attr-duplicate.rs:79:1
    |
 LL | #[track_caller]
    | ^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:81:1
+  --> $DIR/unused-attr-duplicate.rs:78:1
    |
 LL | #[track_caller]
    | ^^^^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:95:1
+  --> $DIR/unused-attr-duplicate.rs:92:1
    |
 LL | #[export_name = "exported_symbol_name"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:97:1
+  --> $DIR/unused-attr-duplicate.rs:94:1
    |
 LL | #[export_name = "exported_symbol_name2"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:101:1
+  --> $DIR/unused-attr-duplicate.rs:98:1
    |
 LL | #[no_mangle]
    | ^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:100:1
+  --> $DIR/unused-attr-duplicate.rs:97:1
    |
 LL | #[no_mangle]
    | ^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:105:1
+  --> $DIR/unused-attr-duplicate.rs:102:1
    |
 LL | #[used]
    | ^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:104:1
+  --> $DIR/unused-attr-duplicate.rs:101:1
    |
 LL | #[used]
    | ^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:89:5
+  --> $DIR/unused-attr-duplicate.rs:86:5
    |
 LL |     #[link_name = "this_does_not_exist"]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:91:5
+  --> $DIR/unused-attr-duplicate.rs:88:5
    |
 LL |     #[link_name = "rust_dbg_extern_identity_u32"]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -205,102 +205,89 @@ LL | #![crate_name = "unused_attr_duplicate"]
 error: unused attribute
   --> $DIR/unused-attr-duplicate.rs:17:1
    |
-LL | #![crate_type = "rlib"]
-   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
-   |
-note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:16:1
-   |
-LL | #![crate_type = "bin"]
-   | ^^^^^^^^^^^^^^^^^^^^^^
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-
-error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:20:1
-   |
 LL | #![recursion_limit = "256"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:19:1
+  --> $DIR/unused-attr-duplicate.rs:16:1
    |
 LL | #![recursion_limit = "128"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:23:1
+  --> $DIR/unused-attr-duplicate.rs:20:1
    |
 LL | #![type_length_limit = "1"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:22:1
+  --> $DIR/unused-attr-duplicate.rs:19:1
    |
 LL | #![type_length_limit = "1048576"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:26:1
+  --> $DIR/unused-attr-duplicate.rs:23:1
    |
 LL | #![no_std]
    | ^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:25:1
+  --> $DIR/unused-attr-duplicate.rs:22:1
    |
 LL | #![no_std]
    | ^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:28:1
+  --> $DIR/unused-attr-duplicate.rs:25:1
    |
 LL | #![no_implicit_prelude]
    | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:27:1
+  --> $DIR/unused-attr-duplicate.rs:24:1
    |
 LL | #![no_implicit_prelude]
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:30:1
+  --> $DIR/unused-attr-duplicate.rs:27:1
    |
 LL | #![windows_subsystem = "windows"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:29:1
+  --> $DIR/unused-attr-duplicate.rs:26:1
    |
 LL | #![windows_subsystem = "console"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:33:1
+  --> $DIR/unused-attr-duplicate.rs:30:1
    |
 LL | #![no_builtins]
    | ^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:32:1
+  --> $DIR/unused-attr-duplicate.rs:29:1
    |
 LL | #![no_builtins]
    | ^^^^^^^^^^^^^^^
 
 error: unused attribute
-  --> $DIR/unused-attr-duplicate.rs:43:5
+  --> $DIR/unused-attr-duplicate.rs:40:5
    |
 LL |     #[macro_export]
    |     ^^^^^^^^^^^^^^^ help: remove this attribute
    |
 note: attribute also specified here
-  --> $DIR/unused-attr-duplicate.rs:42:5
+  --> $DIR/unused-attr-duplicate.rs:39:5
    |
 LL |     #[macro_export]
    |     ^^^^^^^^^^^^^^^
 
-error: aborting due to 24 previous errors
+error: aborting due to 23 previous errors
 

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`error: unused attribute`
`2`		`- --> $DIR/unused-attr-duplicate.rs:36:1`
	`2`	`+ --> $DIR/unused-attr-duplicate.rs:33:1`
`3`	`3`	`\|`
`4`	`4`	`LL \| #[no_link]`
`5`	`5`	`\| ^^^^^^^^^^ help: remove this attribute`
`@@ -10,180 +10,180 @@ note: the lint level is defined here`
`10`	`10`	`LL \| #![deny(unused_attributes)]`
`11`	`11`	`\| ^^^^^^^^^^^^^^^^^`
`12`	`12`	`note: attribute also specified here`
`13`		`- --> $DIR/unused-attr-duplicate.rs:35:1`
	`13`	`+ --> $DIR/unused-attr-duplicate.rs:32:1`
`14`	`14`	`\|`
`15`	`15`	`LL \| #[no_link]`
`16`	`16`	`\| ^^^^^^^^^^`
`17`	`17`
`18`	`18`	`error: unused attribute`
`19`		`- --> $DIR/unused-attr-duplicate.rs:40:1`
	`19`	`+ --> $DIR/unused-attr-duplicate.rs:37:1`
`20`	`20`	`\|`
`21`	`21`	`LL \| #[macro_use]`
`22`	`22`	`\| ^^^^^^^^^^^^ help: remove this attribute`
`23`	`23`	`\|`
`24`	`24`	`note: attribute also specified here`
`25`		`- --> $DIR/unused-attr-duplicate.rs:39:1`
	`25`	`+ --> $DIR/unused-attr-duplicate.rs:36:1`
`26`	`26`	`\|`
`27`	`27`	`LL \| #[macro_use]`
`28`	`28`	`\| ^^^^^^^^^^^^`
`29`	`29`
`30`	`30`	`error: unused attribute`
`31`		`- --> $DIR/unused-attr-duplicate.rs:50:1`
	`31`	`+ --> $DIR/unused-attr-duplicate.rs:47:1`
`32`	`32`	`\|`
`33`	`33`	`LL \| #[path = "bar.rs"]`
`34`	`34`	`\| ^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`35`	`35`	`\|`
`36`	`36`	`note: attribute also specified here`
`37`		`- --> $DIR/unused-attr-duplicate.rs:49:1`
	`37`	`+ --> $DIR/unused-attr-duplicate.rs:46:1`
`38`	`38`	`\|`
`39`	`39`	`LL \| #[path = "auxiliary/lint_unused_extern_crate.rs"]`
`40`	`40`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`41`	`41`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`42`	`42`
`43`	`43`	`error: unused attribute`
`44`		`- --> $DIR/unused-attr-duplicate.rs:56:1`
	`44`	`+ --> $DIR/unused-attr-duplicate.rs:53:1`
`45`	`45`	`\|`
`46`	`46`	`LL \| #[ignore = "some text"]`
`47`	`47`	`\| ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`48`	`48`	`\|`
`49`	`49`	`note: attribute also specified here`
`50`		`- --> $DIR/unused-attr-duplicate.rs:55:1`
	`50`	`+ --> $DIR/unused-attr-duplicate.rs:52:1`
`51`	`51`	`\|`
`52`	`52`	`LL \| #[ignore]`
`53`	`53`	`\| ^^^^^^^^^`
`54`	`54`
`55`	`55`	`error: unused attribute`
`56`		`- --> $DIR/unused-attr-duplicate.rs:58:1`
	`56`	`+ --> $DIR/unused-attr-duplicate.rs:55:1`
`57`	`57`	`\|`
`58`	`58`	`LL \| #[should_panic(expected = "values don't match")]`
`59`	`59`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`60`	`60`	`\|`
`61`	`61`	`note: attribute also specified here`
`62`		`- --> $DIR/unused-attr-duplicate.rs:57:1`
	`62`	`+ --> $DIR/unused-attr-duplicate.rs:54:1`
`63`	`63`	`\|`
`64`	`64`	`LL \| #[should_panic]`
`65`	`65`	`\| ^^^^^^^^^^^^^^^`
`66`	`66`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`67`	`67`
`68`	`68`	`error: unused attribute`
`69`		`- --> $DIR/unused-attr-duplicate.rs:63:1`
	`69`	`+ --> $DIR/unused-attr-duplicate.rs:60:1`
`70`	`70`	`\|`
`71`	`71`	`LL \| #[must_use = "some message"]`
`72`	`72`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`73`	`73`	`\|`
`74`	`74`	`note: attribute also specified here`
`75`		`- --> $DIR/unused-attr-duplicate.rs:62:1`
	`75`	`+ --> $DIR/unused-attr-duplicate.rs:59:1`
`76`	`76`	`\|`
`77`	`77`	`LL \| #[must_use]`
`78`	`78`	`\| ^^^^^^^^^^^`
`79`	`79`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`80`	`80`
`81`	`81`	`error: unused attribute`
`82`		`- --> $DIR/unused-attr-duplicate.rs:69:1`
	`82`	`+ --> $DIR/unused-attr-duplicate.rs:66:1`
`83`	`83`	`\|`
`84`	`84`	`LL \| #[non_exhaustive]`
`85`	`85`	`\| ^^^^^^^^^^^^^^^^^ help: remove this attribute`
`86`	`86`	`\|`
`87`	`87`	`note: attribute also specified here`
`88`		`- --> $DIR/unused-attr-duplicate.rs:68:1`
	`88`	`+ --> $DIR/unused-attr-duplicate.rs:65:1`
`89`	`89`	`\|`
`90`	`90`	`LL \| #[non_exhaustive]`
`91`	`91`	`\| ^^^^^^^^^^^^^^^^^`
`92`	`92`
`93`	`93`	`error: unused attribute`
`94`		`- --> $DIR/unused-attr-duplicate.rs:73:1`
	`94`	`+ --> $DIR/unused-attr-duplicate.rs:70:1`
`95`	`95`	`\|`
`96`	`96`	`LL \| #[automatically_derived]`
`97`	`97`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`98`	`98`	`\|`
`99`	`99`	`note: attribute also specified here`
`100`		`- --> $DIR/unused-attr-duplicate.rs:72:1`
	`100`	`+ --> $DIR/unused-attr-duplicate.rs:69:1`
`101`	`101`	`\|`
`102`	`102`	`LL \| #[automatically_derived]`
`103`	`103`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^`
`104`	`104`
`105`	`105`	`error: unused attribute`
`106`		`- --> $DIR/unused-attr-duplicate.rs:77:1`
	`106`	`+ --> $DIR/unused-attr-duplicate.rs:74:1`
`107`	`107`	`\|`
`108`	`108`	`LL \| #[inline(never)]`
`109`	`109`	`\| ^^^^^^^^^^^^^^^^ help: remove this attribute`
`110`	`110`	`\|`
`111`	`111`	`note: attribute also specified here`
`112`		`- --> $DIR/unused-attr-duplicate.rs:76:1`
	`112`	`+ --> $DIR/unused-attr-duplicate.rs:73:1`
`113`	`113`	`\|`
`114`	`114`	`LL \| #[inline(always)]`
`115`	`115`	`\| ^^^^^^^^^^^^^^^^^`
`116`	`116`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`117`	`117`
`118`	`118`	`error: unused attribute`
`119`		`- --> $DIR/unused-attr-duplicate.rs:80:1`
	`119`	`+ --> $DIR/unused-attr-duplicate.rs:77:1`
`120`	`120`	`\|`
`121`	`121`	`LL \| #[cold]`
`122`	`122`	`\| ^^^^^^^ help: remove this attribute`
`123`	`123`	`\|`
`124`	`124`	`note: attribute also specified here`
`125`		`- --> $DIR/unused-attr-duplicate.rs:79:1`
	`125`	`+ --> $DIR/unused-attr-duplicate.rs:76:1`
`126`	`126`	`\|`
`127`	`127`	`LL \| #[cold]`
`128`	`128`	`\| ^^^^^^^`
`129`	`129`
`130`	`130`	`error: unused attribute`
`131`		`- --> $DIR/unused-attr-duplicate.rs:82:1`
	`131`	`+ --> $DIR/unused-attr-duplicate.rs:79:1`
`132`	`132`	`\|`
`133`	`133`	`LL \| #[track_caller]`
`134`	`134`	`\| ^^^^^^^^^^^^^^^ help: remove this attribute`
`135`	`135`	`\|`
`136`	`136`	`note: attribute also specified here`
`137`		`- --> $DIR/unused-attr-duplicate.rs:81:1`
	`137`	`+ --> $DIR/unused-attr-duplicate.rs:78:1`
`138`	`138`	`\|`
`139`	`139`	`LL \| #[track_caller]`
`140`	`140`	`\| ^^^^^^^^^^^^^^^`
`141`	`141`
`142`	`142`	`error: unused attribute`
`143`		`- --> $DIR/unused-attr-duplicate.rs:95:1`
	`143`	`+ --> $DIR/unused-attr-duplicate.rs:92:1`
`144`	`144`	`\|`
`145`	`145`	`LL \| #[export_name = "exported_symbol_name"]`
`146`	`146`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`147`	`147`	`\|`
`148`	`148`	`note: attribute also specified here`
`149`		`- --> $DIR/unused-attr-duplicate.rs:97:1`
	`149`	`+ --> $DIR/unused-attr-duplicate.rs:94:1`
`150`	`150`	`\|`
`151`	`151`	`LL \| #[export_name = "exported_symbol_name2"]`
`152`	`152`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`153`	`153`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`154`	`154`
`155`	`155`	`error: unused attribute`
`156`		`- --> $DIR/unused-attr-duplicate.rs:101:1`
	`156`	`+ --> $DIR/unused-attr-duplicate.rs:98:1`
`157`	`157`	`\|`
`158`	`158`	`LL \| #[no_mangle]`
`159`	`159`	`\| ^^^^^^^^^^^^ help: remove this attribute`
`160`	`160`	`\|`
`161`	`161`	`note: attribute also specified here`
`162`		`- --> $DIR/unused-attr-duplicate.rs:100:1`
	`162`	`+ --> $DIR/unused-attr-duplicate.rs:97:1`
`163`	`163`	`\|`
`164`	`164`	`LL \| #[no_mangle]`
`165`	`165`	`\| ^^^^^^^^^^^^`
`166`	`166`
`167`	`167`	`error: unused attribute`
`168`		`- --> $DIR/unused-attr-duplicate.rs:105:1`
	`168`	`+ --> $DIR/unused-attr-duplicate.rs:102:1`
`169`	`169`	`\|`
`170`	`170`	`LL \| #[used]`
`171`	`171`	`\| ^^^^^^^ help: remove this attribute`
`172`	`172`	`\|`
`173`	`173`	`note: attribute also specified here`
`174`		`- --> $DIR/unused-attr-duplicate.rs:104:1`
	`174`	`+ --> $DIR/unused-attr-duplicate.rs:101:1`
`175`	`175`	`\|`
`176`	`176`	`LL \| #[used]`
`177`	`177`	`\| ^^^^^^^`
`178`	`178`
`179`	`179`	`error: unused attribute`
`180`		`- --> $DIR/unused-attr-duplicate.rs:89:5`
	`180`	`+ --> $DIR/unused-attr-duplicate.rs:86:5`
`181`	`181`	`\|`
`182`	`182`	`LL \| #[link_name = "this_does_not_exist"]`
`183`	`183`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`184`	`184`	`\|`
`185`	`185`	`note: attribute also specified here`
`186`		`- --> $DIR/unused-attr-duplicate.rs:91:5`
	`186`	`+ --> $DIR/unused-attr-duplicate.rs:88:5`
`187`	`187`	`\|`
`188`	`188`	`LL \| #[link_name = "rust_dbg_extern_identity_u32"]`
`189`	`189`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`@@ -205,102 +205,89 @@ LL \| #![crate_name = "unused_attr_duplicate"]`
`205`	`205`	`error: unused attribute`
`206`	`206`	`--> $DIR/unused-attr-duplicate.rs:17:1`
`207`	`207`	`\|`
`208`		`-LL \| #![crate_type = "rlib"]`
`209`		`- \| ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`210`		`- \|`
`211`		`-note: attribute also specified here`
`212`		`- --> $DIR/unused-attr-duplicate.rs:16:1`
`213`		`- \|`
`214`		`-LL \| #![crate_type = "bin"]`
`215`		`- \| ^^^^^^^^^^^^^^^^^^^^^^`
`216`		`- = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`217`		`-`
`218`		`-error: unused attribute`
`219`		`- --> $DIR/unused-attr-duplicate.rs:20:1`
`220`		`- \|`
`221`	`208`	`LL \| #![recursion_limit = "256"]`
`222`	`209`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`223`	`210`	`\|`
`224`	`211`	`note: attribute also specified here`
`225`		`- --> $DIR/unused-attr-duplicate.rs:19:1`
	`212`	`+ --> $DIR/unused-attr-duplicate.rs:16:1`
`226`	`213`	`\|`
`227`	`214`	`LL \| #![recursion_limit = "128"]`
`228`	`215`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`229`	`216`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`230`	`217`
`231`	`218`	`error: unused attribute`
`232`		`- --> $DIR/unused-attr-duplicate.rs:23:1`
	`219`	`+ --> $DIR/unused-attr-duplicate.rs:20:1`
`233`	`220`	`\|`
`234`	`221`	`LL \| #![type_length_limit = "1"]`
`235`	`222`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`236`	`223`	`\|`
`237`	`224`	`note: attribute also specified here`
`238`		`- --> $DIR/unused-attr-duplicate.rs:22:1`
	`225`	`+ --> $DIR/unused-attr-duplicate.rs:19:1`
`239`	`226`	`\|`
`240`	`227`	`LL \| #![type_length_limit = "1048576"]`
`241`	`228`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`242`	`229`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`243`	`230`
`244`	`231`	`error: unused attribute`
`245`		`- --> $DIR/unused-attr-duplicate.rs:26:1`
	`232`	`+ --> $DIR/unused-attr-duplicate.rs:23:1`
`246`	`233`	`\|`
`247`	`234`	`LL \| #![no_std]`
`248`	`235`	`\| ^^^^^^^^^^ help: remove this attribute`
`249`	`236`	`\|`
`250`	`237`	`note: attribute also specified here`
`251`		`- --> $DIR/unused-attr-duplicate.rs:25:1`
	`238`	`+ --> $DIR/unused-attr-duplicate.rs:22:1`
`252`	`239`	`\|`
`253`	`240`	`LL \| #![no_std]`
`254`	`241`	`\| ^^^^^^^^^^`
`255`	`242`
`256`	`243`	`error: unused attribute`
`257`		`- --> $DIR/unused-attr-duplicate.rs:28:1`
	`244`	`+ --> $DIR/unused-attr-duplicate.rs:25:1`
`258`	`245`	`\|`
`259`	`246`	`LL \| #![no_implicit_prelude]`
`260`	`247`	`\| ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`261`	`248`	`\|`
`262`	`249`	`note: attribute also specified here`
`263`		`- --> $DIR/unused-attr-duplicate.rs:27:1`
	`250`	`+ --> $DIR/unused-attr-duplicate.rs:24:1`
`264`	`251`	`\|`
`265`	`252`	`LL \| #![no_implicit_prelude]`
`266`	`253`	`\| ^^^^^^^^^^^^^^^^^^^^^^^`
`267`	`254`
`268`	`255`	`error: unused attribute`
`269`		`- --> $DIR/unused-attr-duplicate.rs:30:1`
	`256`	`+ --> $DIR/unused-attr-duplicate.rs:27:1`
`270`	`257`	`\|`
`271`	`258`	`LL \| #![windows_subsystem = "windows"]`
`272`	`259`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute`
`273`	`260`	`\|`
`274`	`261`	`note: attribute also specified here`
`275`		`- --> $DIR/unused-attr-duplicate.rs:29:1`
	`262`	`+ --> $DIR/unused-attr-duplicate.rs:26:1`
`276`	`263`	`\|`
`277`	`264`	`LL \| #![windows_subsystem = "console"]`
`278`	`265`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`279`	`266`	`= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!`
`280`	`267`
`281`	`268`	`error: unused attribute`
`282`		`- --> $DIR/unused-attr-duplicate.rs:33:1`
	`269`	`+ --> $DIR/unused-attr-duplicate.rs:30:1`
`283`	`270`	`\|`
`284`	`271`	`LL \| #![no_builtins]`
`285`	`272`	`\| ^^^^^^^^^^^^^^^ help: remove this attribute`
`286`	`273`	`\|`
`287`	`274`	`note: attribute also specified here`
`288`		`- --> $DIR/unused-attr-duplicate.rs:32:1`
	`275`	`+ --> $DIR/unused-attr-duplicate.rs:29:1`
`289`	`276`	`\|`
`290`	`277`	`LL \| #![no_builtins]`
`291`	`278`	`\| ^^^^^^^^^^^^^^^`
`292`	`279`
`293`	`280`	`error: unused attribute`
`294`		`- --> $DIR/unused-attr-duplicate.rs:43:5`
	`281`	`+ --> $DIR/unused-attr-duplicate.rs:40:5`
`295`	`282`	`\|`
`296`	`283`	`LL \| #[macro_export]`
`297`	`284`	`\| ^^^^^^^^^^^^^^^ help: remove this attribute`
`298`	`285`	`\|`
`299`	`286`	`note: attribute also specified here`
`300`		`- --> $DIR/unused-attr-duplicate.rs:42:5`
	`287`	`+ --> $DIR/unused-attr-duplicate.rs:39:5`
`301`	`288`	`\|`
`302`	`289`	`LL \| #[macro_export]`
`303`	`290`	`\| ^^^^^^^^^^^^^^^`
`304`	`291`
`305`		`-error: aborting due to 24 previous errors`
	`292`	`+error: aborting due to 23 previous errors`
`306`	`293`