diff --git a/src/python/pants/testutil/BUILD b/src/python/pants/testutil/BUILD
index f1793d37e84..4ac041d44c6 100644
--- a/src/python/pants/testutil/BUILD
+++ b/src/python/pants/testutil/BUILD
@@ -37,12 +37,9 @@ target(
   name = 'int-test',
   dependencies=[
     ':int-test-for-export',
-    # NB: 'pants_run_integration_test.py' runs ./pants in a subprocess, so test results will depend
-    # on the pants binary and all of its transitive dependencies. Adding the dependencies below is
-    # our best proxy for ensuring that any test target depending on this target will be invalidated
-    # on changes to those undeclared dependencies.
+    # NB: 'pants_run_integration_test.py' runs ./pants in a subprocess using the PYTHONPATH
+    # of the testrunner. We include the pants binary itself to fully populate the path.
     'src/python/pants/bin:pants_local_binary',
-    'src/rust/engine',
   ],
 )
 
diff --git a/src/rust/engine/BUILD b/src/rust/engine/BUILD
deleted file mode 100644
index 721d8d82bd0..00000000000
--- a/src/rust/engine/BUILD
+++ /dev/null
@@ -1,10 +0,0 @@
-# Copyright 2018 Pants project contributors (see CONTRIBUTORS.md).
-# Licensed under the Apache License, Version 2.0 (see LICENSE).
-
-# Track files depended on to build the native engine to allow for downstream invalidations.
-files(
-  sources=["**/Cargo.*", "**/*.rs", "!**/target/*", "!process_execution/bazel_protos"],
-  dependencies=[
-    'src/rust/engine/process_execution/bazel_protos'
-  ]
-)