fix: don't unwrap when reading possibly left-over bytes from pack-stream (#1352)

Author: Byron

gix/src/remote/connection/fetch/error.rs

@@ -45,6 +45,8 @@ pub enum Error {
     RejectShallowRemote,
     #[error(transparent)]
     NegotiationAlgorithmConfig(#[from] config::key::GenericErrorWithValue),
+    #[error("Failed to read remaining bytes in stream")]
+    ReadRemainingBytes(#[source] std::io::Error),
 }
 
 impl gix_protocol::transport::IsSpuriousError for Error {

gix/src/remote/connection/fetch/receive_pack.rs

@@ -287,7 +287,7 @@ where
                     #[cfg(not(feature = "async-network-client"))]
                     let has_read_to_end = { rd.stopped_at().is_some() };
                     if !has_read_to_end {
-                        std::io::copy(&mut rd, &mut std::io::sink()).unwrap();
+                        std::io::copy(&mut rd, &mut std::io::sink()).map_err(Error::ReadRemainingBytes)?;
                     }
                     #[cfg(feature = "async-network-client")]
                     {