diff --git a/lib/spack/spack/environment/environment.py b/lib/spack/spack/environment/environment.py
index a9dbf71c970..9f03cac1e3d 100644
--- a/lib/spack/spack/environment/environment.py
+++ b/lib/spack/spack/environment/environment.py
@@ -688,12 +688,12 @@ def regenerate(self, concretized_root_specs, force=False):
             return
 
         print(new_root)
-        print(
-            [
-                (s, os.stat(os.path.join(os.path.dirname(new_root), s)).st_mtime)
-                for s in os.listdir(os.path.dirname(new_root))
-            ]
-        )
+#        print(
+#            [
+#                (s, os.stat(os.path.join(os.path.dirname(new_root), s)).st_mtime)
+#                for s in os.listdir(os.path.dirname(new_root))
+#            ]
+#        )
         print(specs)
         if update_method == "exchange" and os.path.isdir(new_root):
             # If new_root is the newest thing in its directory, no need to update