diff -Naur a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java
--- a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java	2019-06-12 20:39:37.420705161 -0700
+++ b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java	2019-06-12 20:44:18.894429744 -0700
@@ -428,24 +428,7 @@
       try {
         content = FileSystemUtils.readContent(markerPath, StandardCharsets.UTF_8);
         String markerRuleKey = readMarkerFile(content, markerData);
-        boolean verified = false;
-        if (Preconditions.checkNotNull(ruleKey).equals(markerRuleKey)
-            && Objects.equals(
-                markerData.get(MANAGED_DIRECTORIES_MARKER),
-                this.markerData.get(MANAGED_DIRECTORIES_MARKER))) {
-          verified = handler.verifyMarkerData(rule, markerData, env);
-          if (env.valuesMissing()) {
-            return null;
-          }
-        }
-
-        if (verified) {
           return new Fingerprint().addString(content).digestAndReset();
-        } else {
-          // So that we are in a consistent state if something happens while fetching the repository
-          markerPath.delete();
-          return null;
-        }
       } catch (IOException e) {
         throw new RepositoryFunctionException(e, Transience.TRANSIENT);
       }
diff -Naur a/src/main/java/com/google/devtools/build/lib/shell/JavaSubprocessFactory.java b/src/main/java/com/google/devtools/build/lib/shell/JavaSubprocessFactory.java
--- a/src/main/java/com/google/devtools/build/lib/shell/JavaSubprocessFactory.java	2019-06-12 20:39:37.538708196 -0700
+++ b/src/main/java/com/google/devtools/build/lib/shell/JavaSubprocessFactory.java	2019-06-12 20:44:18.863429602 -0700
@@ -146,7 +146,6 @@
     ProcessBuilder builder = new ProcessBuilder();
     builder.command(params.getArgv());
     if (params.getEnv() != null) {
-      builder.environment().clear();
       builder.environment().putAll(params.getEnv());
     }