rust-1.72.0 changes (#5255)

Prepare to upgrade rust version to latest stable.

- `rustfmt` has learned to format `let irrefutable = $expr else { ...
};` blocks
- There's a new warning about virtual (workspace) crate resolver, picked
the latest resolver as I suspect everyone would expect it to be the
latest; should not matter anyways
- Some new clippies, which seem alright

pageserver/src/config.rs

@@ -73,7 +73,7 @@ pub mod defaults {
     /// Default built-in configuration file.
     ///
     pub const DEFAULT_CONFIG_FILE: &str = formatcp!(
-        r###"
+        r#"
 # Initial configuration file created by 'pageserver --init'
 #listen_pg_addr = '{DEFAULT_PG_LISTEN_ADDR}'
 #listen_http_addr = '{DEFAULT_HTTP_LISTEN_ADDR}'
@@ -118,7 +118,7 @@ pub mod defaults {
 
 [remote_storage]
 
-"###
+"#
     );
 }
 

pageserver/src/tenant/storage_layer/remote_layer.rs

@@ -74,7 +74,7 @@ impl Layer for RemoteLayer {
         _reconstruct_state: &mut ValueReconstructState,
         _ctx: &RequestContext,
     ) -> Result<ValueReconstructResult> {
-        bail!("layer {self} needs to be downloaded");
+        Err(anyhow::anyhow!("layer {self} needs to be downloaded"))
     }
 }