Merge pull request #1152 from mayeut/already-built

fix: error out if multiple wheels with the same name are produced

cibuildwheel/linux.py

@@ -11,6 +11,7 @@ from .oci_container import OCIContainer
 from .options import Options
 from .typing import OrderedDict, PathOrStr, assert_never
 from .util import (
+    AlreadyBuiltWheelError,
     BuildSelector,
     NonPlatformWheelError,
     find_compatible_wheel,
@@ -261,6 +262,10 @@ def build_in_container(
 
             repaired_wheels = container.glob(repaired_wheel_dir, "*.whl")
 
+            for repaired_wheel in repaired_wheels:
+                if repaired_wheel.name in {wheel.name for wheel in built_wheels}:
+                    raise AlreadyBuiltWheelError(repaired_wheel.name)
+
         if build_options.test_command and build_options.test_selector(config.identifier):
             log.step("Testing wheel...")