Fix CI (#266)

Author: madsmtm

.github/workflows/ci.yml

@@ -98,6 +98,8 @@ jobs:
     - name: Pin deps that break MSRV
       if: matrix.rust_version == '1.71.0'
       run: |
+        cargo update -p dpi --precise 0.1.1
+        cargo update -p zune-jpeg --precise 0.4.14
         cargo update -p half --precise 2.4.1
         cargo update -p bumpalo --precise 3.14.0
 

src/error.rs

@@ -204,6 +204,7 @@ impl<T> SwResultExt<T> for Option<T> {
 ///
 /// This prevents `x11-dl` and `x11rb` from becoming public dependencies, since users cannot downcast
 /// to this type.
+#[allow(dead_code)]
 struct LibraryError<E>(E);
 
 impl<E: fmt::Debug> fmt::Debug for LibraryError<E> {