fix(cli): Don't crash on stdin

Fixes #264

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+#### Bug Fixes
+
+- Fix crash when processing stdin (`-`)
+
 ## [1.0.2] - 2021-05-28
 
 #### Bug Fixes

Cargo.toml

@@ -83,6 +83,7 @@ typed-arena = "2.0.1"
 
 [dev-dependencies]
 assert_fs = "1.0"
+assert_cmd = "1.0"
 predicates = "1.0"
 criterion = "0.3"
 maplit = "1.0"

src/file.rs

@@ -600,7 +600,7 @@ fn walk_entry(
         let explicit = entry.depth() == 0;
         let (path, lookup_path) = if entry.is_stdin() {
             let path = std::path::Path::new("-");
-            (path, path.to_owned())
+            (path, std::env::current_dir()?)
         } else {
             let path = entry.path();
             (path, path.canonicalize()?)