diff --git a/src/eyreish/error.rs b/src/eyreish/error.rs
index ef92a0c..a7ed3bd 100644
--- a/src/eyreish/error.rs
+++ b/src/eyreish/error.rs
@@ -699,7 +699,7 @@ impl ErasedErrorImpl {
             .deref_mut()
     }
 
-    pub(crate) unsafe fn chain<'a>(this: Ref<'a, Self>) -> Chain<'a> {
+    pub(crate) unsafe fn chain(this: Ref<'_, Self>) -> Chain<'_> {
         Chain::new(Self::error(this))
     }
 }
diff --git a/src/source_impls.rs b/src/source_impls.rs
index 4414595..14fe782 100644
--- a/src/source_impls.rs
+++ b/src/source_impls.rs
@@ -73,7 +73,7 @@ fn context_info<'a>(
     }
 
     if offset >= (span.offset() + span.len()).saturating_sub(1) {
-        let starting_offset = before_lines_starts.get(0).copied().unwrap_or_else(|| {
+        let starting_offset = before_lines_starts.first().copied().unwrap_or_else(|| {
             if context_lines_before == 0 {
                 span.offset()
             } else {