diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs
index 546aa4052d33..92fe512aef3c 100644
--- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs
+++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs
@@ -687,6 +687,32 @@ mod inner { #![link_section="1800"] }
     //~| WARN previously accepted
     //~| HELP can be applied to
     //~| HELP remove the attribute
+
+    #[link_section = "1800"]
+    //~^ WARN attribute cannot be used on
+    //~| WARN previously accepted
+    //~| HELP can be applied to
+    //~| HELP remove the attribute
+    trait Tr {
+        #[link_section = "1800"]
+        fn inside_tr_no_default(&self);
+
+        #[link_section = "1800"]
+        fn inside_tr_default(&self) { }
+    }
+
+    impl S {
+        #[link_section = "1800"]
+        fn inside_abc_123(&self) { }
+    }
+
+    impl Tr for S {
+        #[link_section = "1800"]
+        fn inside_tr_no_default(&self) { }
+    }
+
+    #[link_section = "1800"]
+    fn should_always_link() { }
 }
 
 
diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
index 2e149caf12b4..8a6102d7aa05 100644
--- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
+++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
@@ -210,7 +210,7 @@ LL | #![reexport_test_harness_main = "2900"]
    |  +
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:695:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:721:1
    |
 LL |   #[link(name = "x")]
    |   ^^^^^^^^^^^^^^^^^^^
@@ -226,7 +226,7 @@ LL | | }
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:771:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:797:1
    |
 LL | #[windows_subsystem = "windows"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -237,7 +237,7 @@ LL | #![windows_subsystem = "windows"]
    |  +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:821:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:847:1
    |
 LL | #[crate_type = "0800"]
    | ^^^^^^^^^^^^^^^^^^^^^^
@@ -248,7 +248,7 @@ LL | #![crate_type = "0800"]
    |  +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:845:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:871:1
    |
 LL | #[feature(x0600)]
    | ^^^^^^^^^^^^^^^^^
@@ -259,7 +259,7 @@ LL | #![feature(x0600)]
    |  +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:870:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:896:1
    |
 LL | #[no_main]
    | ^^^^^^^^^^
@@ -270,7 +270,7 @@ LL | #![no_main]
    |  +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:894:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:920:1
    |
 LL | #[no_builtins]
    | ^^^^^^^^^^^^^^
@@ -377,7 +377,7 @@ LL |     #![reexport_test_harness_main = "2900"] impl S { }
    |      +
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:701:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:727:17
    |
 LL |     mod inner { #![link(name = "x")] }
    |     ------------^^^^^^^^^^^^^^^^^^^^-- not an `extern` block
@@ -385,7 +385,7 @@ LL |     mod inner { #![link(name = "x")] }
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:706:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:732:5
    |
 LL |     #[link(name = "x")] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^ ---------- not an `extern` block
@@ -393,7 +393,7 @@ LL |     #[link(name = "x")] fn f() { }
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:711:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:737:5
    |
 LL |     #[link(name = "x")] struct S;
    |     ^^^^^^^^^^^^^^^^^^^ --------- not an `extern` block
@@ -401,7 +401,7 @@ LL |     #[link(name = "x")] struct S;
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:716:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:742:5
    |
 LL |     #[link(name = "x")] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^ ----------- not an `extern` block
@@ -409,7 +409,7 @@ LL |     #[link(name = "x")] type T = S;
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:721:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:747:5
    |
 LL |     #[link(name = "x")] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^ ---------- not an `extern` block
@@ -417,7 +417,7 @@ LL |     #[link(name = "x")] impl S { }
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: attribute should be applied to an `extern` block with non-Rust ABI
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:726:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:752:5
    |
 LL |     #[link(name = "x")] extern "Rust" {}
    |     ^^^^^^^^^^^^^^^^^^^
@@ -425,13 +425,13 @@ LL |     #[link(name = "x")] extern "Rust" {}
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
 
 warning: crate-level attribute should be in the root module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:775:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:801:17
    |
 LL |     mod inner { #![windows_subsystem="windows"] }
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:778:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:804:5
    |
 LL |     #[windows_subsystem = "windows"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -442,7 +442,7 @@ LL |     #![windows_subsystem = "windows"] fn f() { }
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:782:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:808:5
    |
 LL |     #[windows_subsystem = "windows"] struct S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -453,7 +453,7 @@ LL |     #![windows_subsystem = "windows"] struct S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:786:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:812:5
    |
 LL |     #[windows_subsystem = "windows"] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -464,7 +464,7 @@ LL |     #![windows_subsystem = "windows"] type T = S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:790:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:816:5
    |
 LL |     #[windows_subsystem = "windows"] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -475,13 +475,13 @@ LL |     #![windows_subsystem = "windows"] impl S { }
    |      +
 
 warning: crate-level attribute should be in the root module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:825:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:851:17
    |
 LL |     mod inner { #![crate_type="0800"] }
    |                 ^^^^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:828:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:854:5
    |
 LL |     #[crate_type = "0800"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -492,7 +492,7 @@ LL |     #![crate_type = "0800"] fn f() { }
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:832:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:858:5
    |
 LL |     #[crate_type = "0800"] struct S;
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -503,7 +503,7 @@ LL |     #![crate_type = "0800"] struct S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:836:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:862:5
    |
 LL |     #[crate_type = "0800"] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -514,7 +514,7 @@ LL |     #![crate_type = "0800"] type T = S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:840:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:866:5
    |
 LL |     #[crate_type = "0800"] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -525,13 +525,13 @@ LL |     #![crate_type = "0800"] impl S { }
    |      +
 
 warning: crate-level attribute should be in the root module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:849:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:875:17
    |
 LL |     mod inner { #![feature(x0600)] }
    |                 ^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:852:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:878:5
    |
 LL |     #[feature(x0600)] fn f() { }
    |     ^^^^^^^^^^^^^^^^^
@@ -542,7 +542,7 @@ LL |     #![feature(x0600)] fn f() { }
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:856:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:882:5
    |
 LL |     #[feature(x0600)] struct S;
    |     ^^^^^^^^^^^^^^^^^
@@ -553,7 +553,7 @@ LL |     #![feature(x0600)] struct S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:860:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:886:5
    |
 LL |     #[feature(x0600)] type T = S;
    |     ^^^^^^^^^^^^^^^^^
@@ -564,7 +564,7 @@ LL |     #![feature(x0600)] type T = S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:864:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:890:5
    |
 LL |     #[feature(x0600)] impl S { }
    |     ^^^^^^^^^^^^^^^^^
@@ -575,13 +575,13 @@ LL |     #![feature(x0600)] impl S { }
    |      +
 
 warning: crate-level attribute should be in the root module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:874:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:900:17
    |
 LL |     mod inner { #![no_main] }
    |                 ^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:877:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:903:5
    |
 LL |     #[no_main] fn f() { }
    |     ^^^^^^^^^^
@@ -592,7 +592,7 @@ LL |     #![no_main] fn f() { }
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:881:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:907:5
    |
 LL |     #[no_main] struct S;
    |     ^^^^^^^^^^
@@ -603,7 +603,7 @@ LL |     #![no_main] struct S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:885:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:911:5
    |
 LL |     #[no_main] type T = S;
    |     ^^^^^^^^^^
@@ -614,7 +614,7 @@ LL |     #![no_main] type T = S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:889:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:915:5
    |
 LL |     #[no_main] impl S { }
    |     ^^^^^^^^^^
@@ -625,13 +625,13 @@ LL |     #![no_main] impl S { }
    |      +
 
 warning: crate-level attribute should be in the root module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:898:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:924:17
    |
 LL |     mod inner { #![no_builtins] }
    |                 ^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:901:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:927:5
    |
 LL |     #[no_builtins] fn f() { }
    |     ^^^^^^^^^^^^^^
@@ -642,7 +642,7 @@ LL |     #![no_builtins] fn f() { }
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:905:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:931:5
    |
 LL |     #[no_builtins] struct S;
    |     ^^^^^^^^^^^^^^
@@ -653,7 +653,7 @@ LL |     #![no_builtins] struct S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:909:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:935:5
    |
 LL |     #[no_builtins] type T = S;
    |     ^^^^^^^^^^^^^^
@@ -664,7 +664,7 @@ LL |     #![no_builtins] type T = S;
    |      +
 
 warning: crate-level attribute should be an inner attribute
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:913:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:939:5
    |
 LL |     #[no_builtins] impl S { }
    |     ^^^^^^^^^^^^^^
@@ -1257,8 +1257,17 @@ LL |     #[link_section = "1800"] impl S { }
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = help: `#[link_section]` can be applied to functions and statics
 
+warning: `#[link_section]` attribute cannot be used on traits
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:691:5
+   |
+LL |     #[link_section = "1800"]
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = help: `#[link_section]` can be applied to functions and statics
+
 warning: `#[must_use]` attribute cannot be used on modules
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:746:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:772:1
    |
 LL | #[must_use]
    | ^^^^^^^^^^^
@@ -1267,7 +1276,7 @@ LL | #[must_use]
    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
 
 warning: `#[must_use]` attribute cannot be used on modules
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:751:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:777:17
    |
 LL |     mod inner { #![must_use] }
    |                 ^^^^^^^^^^^^
@@ -1276,7 +1285,7 @@ LL |     mod inner { #![must_use] }
    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
 
 warning: `#[must_use]` attribute cannot be used on type aliases
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:760:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:786:5
    |
 LL |     #[must_use] type T = S;
    |     ^^^^^^^^^^^
@@ -1285,7 +1294,7 @@ LL |     #[must_use] type T = S;
    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
 
 warning: `#[must_use]` attribute cannot be used on inherent impl blocks
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:765:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:791:5
    |
 LL |     #[must_use] impl S { }
    |     ^^^^^^^^^^^
@@ -1294,13 +1303,13 @@ LL |     #[must_use] impl S { }
    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![crate_name]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:797:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:823:1
    |
 LL | #[crate_name = "0900"]
    | ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:799:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:825:1
    |
 LL | / mod crate_name {
 LL | |
@@ -1310,67 +1319,67 @@ LL | | }
    | |_^
 
 warning: the `#![crate_name]` attribute can only be used at the crate root
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:801:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:827:17
    |
 LL |     mod inner { #![crate_name="0900"] }
    |                 ^^^^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![crate_name]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:804:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:830:5
    |
 LL |     #[crate_name = "0900"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this function
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:804:28
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:830:28
    |
 LL |     #[crate_name = "0900"] fn f() { }
    |                            ^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![crate_name]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:808:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:834:5
    |
 LL |     #[crate_name = "0900"] struct S;
    |     ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this struct
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:808:28
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:834:28
    |
 LL |     #[crate_name = "0900"] struct S;
    |                            ^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![crate_name]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:812:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:838:5
    |
 LL |     #[crate_name = "0900"] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this type alias
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:812:28
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:838:28
    |
 LL |     #[crate_name = "0900"] type T = S;
    |                            ^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![crate_name]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:816:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:842:5
    |
 LL |     #[crate_name = "0900"] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this implementation block
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:816:28
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:842:28
    |
 LL |     #[crate_name = "0900"] impl S { }
    |                            ^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![recursion_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:918:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:944:1
    |
 LL | #[recursion_limit="0200"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:920:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:946:1
    |
 LL | / mod recursion_limit {
 LL | |
@@ -1380,67 +1389,67 @@ LL | | }
    | |_^
 
 warning: the `#![recursion_limit]` attribute can only be used at the crate root
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:922:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:948:17
    |
 LL |     mod inner { #![recursion_limit="0200"] }
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![recursion_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:925:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:951:5
    |
 LL |     #[recursion_limit="0200"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this function
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:925:31
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:951:31
    |
 LL |     #[recursion_limit="0200"] fn f() { }
    |                               ^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![recursion_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:929:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:955:5
    |
 LL |     #[recursion_limit="0200"] struct S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this struct
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:929:31
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:955:31
    |
 LL |     #[recursion_limit="0200"] struct S;
    |                               ^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![recursion_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:933:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:959:5
    |
 LL |     #[recursion_limit="0200"] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this type alias
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:933:31
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:959:31
    |
 LL |     #[recursion_limit="0200"] type T = S;
    |                               ^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![recursion_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:937:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:963:5
    |
 LL |     #[recursion_limit="0200"] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this implementation block
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:937:31
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:963:31
    |
 LL |     #[recursion_limit="0200"] impl S { }
    |                               ^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![type_length_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:942:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:968:1
    |
 LL | #[type_length_limit="0100"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this module
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:944:1
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:970:1
    |
 LL | / mod type_length_limit {
 LL | |
@@ -1450,55 +1459,55 @@ LL | | }
    | |_^
 
 warning: the `#![type_length_limit]` attribute can only be used at the crate root
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:946:17
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:972:17
    |
 LL |     mod inner { #![type_length_limit="0100"] }
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![type_length_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:949:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:975:5
    |
 LL |     #[type_length_limit="0100"] fn f() { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this function
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:949:33
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:975:33
    |
 LL |     #[type_length_limit="0100"] fn f() { }
    |                                 ^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![type_length_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:953:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:979:5
    |
 LL |     #[type_length_limit="0100"] struct S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this struct
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:953:33
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:979:33
    |
 LL |     #[type_length_limit="0100"] struct S;
    |                                 ^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![type_length_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:957:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:983:5
    |
 LL |     #[type_length_limit="0100"] type T = S;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this type alias
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:957:33
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:983:33
    |
 LL |     #[type_length_limit="0100"] type T = S;
    |                                 ^^^^^^^^^^^
 
 warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![type_length_limit]`
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:961:5
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:987:5
    |
 LL |     #[type_length_limit="0100"] impl S { }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: This attribute does not have an `!`, which means it is applied to this implementation block
-  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:961:33
+  --> $DIR/issue-43106-gating-of-builtin-attrs.rs:987:33
    |
 LL |     #[type_length_limit="0100"] impl S { }
    |                                 ^^^^^^^^^^
@@ -1566,5 +1575,5 @@ 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!
    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
 
-warning: 173 warnings emitted
+warning: 174 warnings emitted