nix: rust-1.62

Update to rust-1.62.0[0]. This requires converting `push_str` +
`format!` calls into a `write!` call.

Remove `license_template_path` since it is deprecated[1].

[0]: https://blog.rust-lang.org/2022/06/30/Rust-1.62.0.html
[1]: rust-lang/rustfmt#5246

Signed-off-by: Fintan Halpenny <[email protected]>

.rustfmt.toml

@@ -28,4 +28,3 @@ use_field_init_shorthand = false
 
 force_explicit_abi = true
 
-license_template_path = ".license-header"

nix/sources.json

@@ -17,10 +17,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f96729212602f15a6a226d2f27f5de70492ad095",
-        "sha256": "1l9y427cirmdjbf0wxhhk09yg6wmk1844xa5gvzw16xm2p3wfgjq",
+        "rev": "573603b7fdb9feb0eb8efc16ee18a015c667ab1b",
+        "sha256": "1z7mxyw5yk1gcsjs5wl8zm4klxg4xngljgrsnpl579l998205qym",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/f96729212602f15a6a226d2f27f5de70492ad095.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/573603b7fdb9feb0eb8efc16ee18a015c667ab1b.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "rust-overlay": {
@@ -29,10 +29,10 @@
         "homepage": "",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "9eea93067eff400846c36f57b7499df9ef428ba0",
-        "sha256": "0vbjld45m6ig19i5zcwlv86m09dnq8msf072s3j3bc6kym2aiy4m",
+        "rev": "1a133f54a0229af8310879eac2c4a82c0576a0b9",
+        "sha256": "0hab9wfr3shcb4z508gjc3y9slnxdjhfnmqhpvrkx4v2gq7pkm8n",
         "type": "tarball",
-        "url": "https://github.com/oxalica/rust-overlay/archive/9eea93067eff400846c36f57b7499df9ef428ba0.tar.gz",
+        "url": "https://github.com/oxalica/rust-overlay/archive/1a133f54a0229af8310879eac2c4a82c0576a0b9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }

surf/src/file_system/path.rs

@@ -15,6 +15,8 @@
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
+use std::fmt::Write as _;
+
 use crate::{file_system::error, nonempty::split_last};
 use nonempty::NonEmpty;
 use std::{convert::TryFrom, ffi::CString, fmt, ops::Deref, path, str::FromStr};
@@ -178,7 +180,7 @@ impl git2::IntoCString for Path {
                 // `git2::DiffOptions::pathspec` to work properly. As far as we're aware this is
                 // the only use of IntoCString for Path.
                 let label = p.label.replace('\\', "\\\\");
-                pathspec.push_str(&format!("{}/", label));
+                let _ = write!(pathspec, "{label}/");
             }
             let pathspec = pathspec.trim_end_matches('/');
             pathspec.into_c_string()

surf/src/vcs/git/reference/glob.rs

@@ -20,7 +20,7 @@ use crate::{
     vcs::git::{error, repo::RepositoryRef},
 };
 use either::Either;
-use std::fmt;
+use std::fmt::{self, Write as _};
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum RefGlob {
@@ -103,7 +103,7 @@ impl RefGlob {
     ) -> Result<References<'a>, error::Error> {
         let mut namespace_glob = "".to_string();
         for n in namespace {
-            namespace_glob.push_str(&format!("refs/namespaces/{}/", n));
+            let _ = write!(namespace_glob, "refs/namespaces/{n}/");
         }
 
         Ok(match self {