fix: remove DatebaseError impl for stringprep::Error and panic instead

sqlx-core/src/postgres/connection/sasl.rs

@@ -1,4 +1,4 @@
-use crate::error::{DatabaseError, Error};
+use crate::error::Error;
 use crate::postgres::connection::stream::PgStream;
 use crate::postgres::message::{
     Authentication, AuthenticationSasl, MessageFormat, SaslInitialResponse, SaslResponse,
@@ -8,7 +8,6 @@ use hmac::{Hmac, Mac};
 use rand::Rng;
 use sha2::digest::Digest;
 use sha2::Sha256;
-use std::error::Error as StdError;
 use stringprep::saslprep;
 
 const GS2_HEADER: &str = "n,,";
@@ -54,7 +53,11 @@ pub(crate) async fn authenticate(
 
     // "n=" saslname ;; Usernames are prepared using SASLprep.
     let username = format!("{}={}", USERNAME_ATTR, options.username);
-    let username = saslprep(&username)?;
+    let username = match saslprep(&username) {
+        Ok(v) => v,
+        // TODO(danielakhterov): Remove panic when we have proper support for configuration errors
+        Err(_) => panic!("Failed to saslprep username"),
+    };
 
     // nonce = "r=" c-nonce [s-nonce] ;; Second part provided by server.
     let nonce = gen_nonce();
@@ -211,24 +214,3 @@ fn hi<'a>(s: &'a str, salt: &'a [u8], iter_count: u32) -> Result<[u8; 32], Error
 
     Ok(hi.into())
 }
-
-impl DatabaseError for stringprep::Error {
-    fn message(&self) -> &str {
-        "Failed to saslprep username"
-    }
-
-    #[doc(hidden)]
-    fn as_error(&self) -> &(dyn StdError + Send + Sync + 'static) {
-        self
-    }
-
-    #[doc(hidden)]
-    fn as_error_mut(&mut self) -> &mut (dyn StdError + Send + Sync + 'static) {
-        self
-    }
-
-    #[doc(hidden)]
-    fn into_error(self: Box<Self>) -> Box<dyn StdError + Send + Sync + 'static> {
-        Box::new(self)
-    }
-}