nix: update to rust-1.72.0

Update the toolchain to rust-1.72.0. This brought with it a new clippy
check for needless '#'s for string literals. However, this is a false
positive and is being tracked here[[0]].

[0]: https://github.com/rust-lang/rust-clippy/issues/11402

Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett

nix/sources.json

@@ -29,10 +29,10 @@
         "homepage": "",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "48f3d76f512c7267d82d84c5d3d156ad2b9a8d12",
-        "sha256": "1xivbqbixnk96pacb6ihcbhsmcm0cly7xbgpq2g8kwqf4sgxk2hi",
+        "rev": "673e2d3d2a3951adc6f5e3351c9fce6ad130baed",
+        "sha256": "1vgjkaikv8lwm3kmb4jbc96kxhdy38nmf1v4s7nmx6j4bd8pmlyd",
         "type": "tarball",
-        "url": "https://github.com/oxalica/rust-overlay/archive/48f3d76f512c7267d82d84c5d3d156ad2b9a8d12.tar.gz",
+        "url": "https://github.com/oxalica/rust-overlay/archive/673e2d3d2a3951adc6f5e3351c9fce6ad130baed.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }

radicle-surf/t/src/diff.rs

@@ -358,6 +358,10 @@ fn test_diff_serde() -> Result<(), Error> {
     Ok(())
 }
 
+// A possible false positive is being hit here for this clippy
+// warning. Tracking issue:
+// https://github.com/rust-lang/rust-clippy/issues/11402
+#[allow(clippy::needless_raw_string_hashes)]
 #[test]
 fn test_both_missing_eof_newline() {
     let buf = r#"

shell.nix

@@ -18,5 +18,6 @@ in
         lld
 
         ripgrep
+        rust-analyzer
     ];
   }