error: Stylesheet
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:1
  |
1 | @u\,nknown;
  | ^^^^^^^^^^^

error: Rule
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:1
  |
1 | @u\,nknown;
  | ^^^^^^^^^^^

error: AtRule
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:1
  |
1 | @u\,nknown;
  | ^^^^^^^^^^^

error: UnknownAtRule
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:1
  |
1 | @u\,nknown;
  | ^^^^^^^^^^^

error: Text
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:1
  |
1 | @u\,nknown;
  | ^^^^^^^^^^

error: Tokens
 --> $DIR/tests/fixture/esbuild/misc/5IxIPW9sKkvdZIzfV33AcA/input.css:1:11
  |
1 | @u\,nknown;
  |           ^