diff --git a/imap/src/client/mod.rs b/imap/src/client/mod.rs
index 7edd38a..bf5747b 100644
--- a/imap/src/client/mod.rs
+++ b/imap/src/client/mod.rs
@@ -2,10 +2,14 @@
 //! ---
 //!
 //! ```no_run
+//! # use panorama_imap::client::Config;
+//! # async fn client() -> anyhow::Result<()> {
 //! let client = Config::builder()
-//!     .hostname("your.domain")
+//!     .hostname("your.domain".to_owned())
 //!     .port(993)
 //!     .open().await?;
+//! # Ok(())
+//! # }
 //! ```
 
 #[macro_use]
diff --git a/imap/src/proto/parsers.rs b/imap/src/proto/parsers.rs
index 88743b2..2a12bba 100644
--- a/imap/src/proto/parsers.rs
+++ b/imap/src/proto/parsers.rs
@@ -68,7 +68,7 @@ macro_rules! paren {
 pub fn parse_u32(s: impl AsRef<[u8]>) -> Result<u32> {
     let mut total = 0u32;
     let s = s.as_ref();
-    for digit in s.iter().rev() {
+    for digit in s.iter() {
         total *= 10;
         if !is_digit(*digit) {
             bail!("invalid digit {}", digit)
diff --git a/imap/src/proto/rfc3501.rs b/imap/src/proto/rfc3501.rs
index b9e6b2f..501670d 100644
--- a/imap/src/proto/rfc3501.rs
+++ b/imap/src/proto/rfc3501.rs
@@ -138,7 +138,7 @@ rule!(pub list_wildcards : u8 => satisfy(is_list_wildcards));
 pub fn literal(i: Bytes) -> IResult<Bytes, Bytes> {
     let mut length_of = terminated(delimited(byte(b'{'), number, byte(b'}')), CRLF);
     let (i, length) = length_of(i)?;
-    println!("length is: {:?}", length);
+    debug!("length is: {:?}", length);
     map(take(length), Bytes::from)(i)
 }