chore(lint): enable wrapcheck

.golangci.yml

@@ -133,7 +133,7 @@ linters:
     #- prealloc # [premature optimization, but can be used in some cases] finds slice declarations that could potentially be preallocated
     #- tagalign # checks that struct tags are well aligned
     #- varnamelen # [great idea, but too many false positives] checks that the length of a variable's name matches its scope
-    #- wrapcheck # checks that errors returned from external packages are wrapped
+    - wrapcheck # checks that errors returned from external packages are wrapped
     #- zerologlint # detects the wrong usage of zerolog that a user forgets to dispatch zerolog.Event
 
     ## disabled

internal/cache/disk.go

@@ -267,15 +267,15 @@ func (d *Disk) evict() error {
 
 	err := filepath.Walk(d.config.Root, func(path string, info fs.FileInfo, err error) error {
 		if err != nil {
-			return err
+			return errors.WithStack(err)
 		}
 		if info.IsDir() {
 			return nil
 		}
 
 		relPath, err := filepath.Rel(d.config.Root, path)
 		if err != nil {
-			return err
+			return errors.WithStack(err)
 		}
 
 		expiresAtBytes, err := xattr.Get(path, expiresAtXAttr)
@@ -353,7 +353,7 @@ type diskWriter struct {
 func (w *diskWriter) Write(p []byte) (int, error) {
 	n, err := w.file.Write(p)
 	w.size += int64(n)
-	return n, err
+	return n, errors.WithStack(err)
 }
 
 func (w *diskWriter) Close() error {