chore(rust): upgrade to 1.83.0

This is needed for std::io::ErrorKind::DirectoryNotEmpty

Cargo.toml

@@ -19,7 +19,7 @@ repository = "https://gitlab.com/famedly/conduit"
 version = "0.10.0-alpha"
 
 # See also `rust-toolchain.toml`
-rust-version = "1.81.0"
+rust-version = "1.83.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

flake.nix

@@ -59,7 +59,7 @@
             file = ./rust-toolchain.toml;
 
             # See also `rust-toolchain.toml`
-            sha256 = "sha256-VZZnlyP69+Y3crrLHQyJirqlHrTtGTsyiSnZB8jEvVo=";
+            sha256 = "sha256-s1RPtyvDGJaX/BisLT+ifVfuhDT1nZkZ1NcK8sbwELM=";
           };
       });
     in

rust-toolchain.toml

@@ -9,7 +9,7 @@
 # If you're having trouble making the relevant changes, bug a maintainer.
 
 [toolchain]
-channel = "1.81.0"
+channel = "1.83.0"
 components = [
   # For rust-analyzer
   "rust-src",

src/database/key_value/sending.rs

@@ -89,11 +89,11 @@ impl service::sending::Data for KeyValueDatabase {
         outgoing_kind: &OutgoingKind,
     ) -> Box<dyn Iterator<Item = Result<(SendingEventType, Vec<u8>)>> + 'a> {
         let prefix = outgoing_kind.get_prefix();
-        return Box::new(
+        Box::new(
             self.servernameevent_data
                 .scan_prefix(prefix)
                 .map(|(k, v)| parse_servercurrentevent(&k, v).map(|(_, ev)| (ev, k))),
-        );
+        )
     }
 
     fn mark_as_active(&self, events: &[(SendingEventType, Vec<u8>)]) -> Result<()> {

src/utils/mod.rs

@@ -134,7 +134,7 @@ pub fn deserialize_from_str<
     deserializer: D,
 ) -> Result<T, D::Error> {
     struct Visitor<T: FromStr<Err = E>, E>(std::marker::PhantomData<T>);
-    impl<'de, T: FromStr<Err = Err>, Err: fmt::Display> serde::de::Visitor<'de> for Visitor<T, Err> {
+    impl<T: FromStr<Err = Err>, Err: fmt::Display> serde::de::Visitor<'_> for Visitor<T, Err> {
         type Value = T;
         fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
             write!(formatter, "a parsable string")
@@ -156,7 +156,7 @@ pub fn deserialize_from_str<
 /// string when passed to a format string.
 pub struct HtmlEscape<'a>(pub &'a str);
 
-impl<'a> fmt::Display for HtmlEscape<'a> {
+impl fmt::Display for HtmlEscape<'_> {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         // Because the internet is always right, turns out there's not that many
         // characters to escape: http://stackoverflow.com/questions/7381974