diff --git a/src/python/pants/engine/BUILD b/src/python/pants/engine/BUILD
index 08ad5123e970..4bb770e45e90 100644
--- a/src/python/pants/engine/BUILD
+++ b/src/python/pants/engine/BUILD
@@ -185,6 +185,12 @@ python_library(
   ],
 )
 
+
+python_library(
+  name='console',
+  sources=['console.py']
+)
+
 resources(
   name='native_engine_shared_library',
   sources=['native_engine.so']
diff --git a/src/python/pants/init/BUILD b/src/python/pants/init/BUILD
index 33ecbab4c4cc..eadfed048418 100644
--- a/src/python/pants/init/BUILD
+++ b/src/python/pants/init/BUILD
@@ -22,6 +22,7 @@ python_library(
     'src/python/pants/engine/legacy:source_mapper',
     'src/python/pants/engine/legacy:structs',
     'src/python/pants/engine:build_files',
+    'src/python/pants/engine:console',
     'src/python/pants/engine:mapper',
     'src/python/pants/engine:native',
     'src/python/pants/engine:parser',
@@ -30,6 +31,7 @@ python_library(
     'src/python/pants/goal:run_tracker',
     'src/python/pants/option',
     'src/python/pants/process',
+    'src/python/pants/rules/core',
     'src/python/pants/subsystem',
     'src/python/pants/util:dirutil',
     'src/python/pants/util:memo',
diff --git a/src/python/pants/init/engine_initializer.py b/src/python/pants/init/engine_initializer.py
index 743a7c4b6240..a5db0125cd3f 100644
--- a/src/python/pants/init/engine_initializer.py
+++ b/src/python/pants/init/engine_initializer.py
@@ -40,7 +40,6 @@
                                          GlobMatchErrorBehavior)
 from pants.option.options_bootstrapper import OptionsBootstrapper
 from pants.rules.core.register import create_core_rules
-from pants.util.collections import combined_dict
 from pants.util.objects import datatype
 
 
@@ -225,22 +224,25 @@ def create_build_graph(self, target_roots, build_root=None):
     return graph, address_mapper
 
 
-def _make_goal_map_from_rules(rules):
-  goal_map = {}
-  goal_to_rule = [(rule.goal, rule) for rule in rules if getattr(rule, 'goal', None) is not None]
-  for goal, rule in goal_to_rule:
-    if goal in goal_map:
-      raise GoalMappingError(
-        'could not map goal `{}` to rule `{}`: already claimed by product `{}`'
-        .format(goal, rule, goal_map[goal])
-      )
-    goal_map[goal] = rule.output_type
-  return goal_map
-
-
 class EngineInitializer(object):
   """Constructs the components necessary to run the v2 engine with v1 BuildGraph compatibility."""
 
+  class GoalMappingError(Exception):
+    """Raised when a goal cannot be mapped to an @rule."""
+
+  @staticmethod
+  def _make_goal_map_from_rules(rules):
+    goal_map = {}
+    goal_to_rule = [(rule.goal, rule) for rule in rules if getattr(rule, 'goal', None) is not None]
+    for goal, rule in goal_to_rule:
+      if goal in goal_map:
+        raise EngineInitializer.GoalMappingError(
+          'could not map goal `{}` to rule `{}`: already claimed by product `{}`'
+          .format(goal, rule, goal_map[goal])
+        )
+      goal_map[goal] = rule.output_type
+    return goal_map
+
   @staticmethod
   def setup_legacy_graph(native, bootstrap_options, build_configuration):
     """Construct and return the components necessary for LegacyBuildGraph construction."""
@@ -345,7 +347,7 @@ def setup_legacy_graph_extended(
       rules
     )
 
-    goal_map = _make_goal_map_from_rules(rules)
+    goal_map = EngineInitializer._make_goal_map_from_rules(rules)
 
     scheduler = Scheduler(
       native,
diff --git a/src/python/pants/pantsd/service/pailgun_service.py b/src/python/pants/pantsd/service/pailgun_service.py
index 523e26e51db2..6ceef862bcaa 100644
--- a/src/python/pants/pantsd/service/pailgun_service.py
+++ b/src/python/pants/pantsd/service/pailgun_service.py
@@ -7,8 +7,6 @@
 
 import logging
 import select
-import sys
-import traceback
 from contextlib import contextmanager
 
 from pants.pantsd.pailgun_server import PailgunServer