Auto merge of #102896 - matthiaskrgr:rollup-jg5xawz, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #101360 (Point out incompatible closure bounds)
 - #101789 (`let`'s not needed in struct field definitions)
 - #102846 (update to syn-1.0.102)
 - #102871 (rustdoc: clean up overly complex `.trait-impl` CSS selectors)
 - #102876 (suggest candidates for unresolved import)
 - #102888 (Improve rustdoc-gui search-color test)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Cargo.lock

@@ -1190,9 +1190,9 @@ version = "0.0.0"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.43"
+version = "1.0.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
+checksum = "94e2ef8dbfc347b10c094890f778ee2e36ca9bb4262e86dc99cd217e35f3470b"
 dependencies = [
  "unicode-ident",
 ]
@@ -1593,9 +1593,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.99"
+version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58dbef6ec655055e20b86b15a8cc6d439cca19b667537ac6a1369572d151ab13"
+checksum = "3fcd952facd492f9be3ef0d0b7032a6e442ee9b361d4acc2b1d0c4aaa5f613a1"
 dependencies = [
  "proc-macro2",
  "quote",