diff --git a/docker/Dockerfile.test b/docker/Dockerfile.test
index 2d7206eba7..ec77085596 100644
--- a/docker/Dockerfile.test
+++ b/docker/Dockerfile.test
@@ -8,7 +8,10 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
         git \
     && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/*rm -rf /var/lib/apt/lists/* /tmp/* && \
     pip install --no-cache-dir --no-binary :all: platformio && \
-    platformio settings set enable_telemetry No
+    platformio settings set enable_telemetry No && \
+    platformio settings set check_libraries_interval 1000000 && \
+    platformio settings set check_platformio_interval 1000000 && \
+    platformio settings set check_platforms_interval 1000000
 
 COPY docker/platformio.ini /pio/platformio.ini
 RUN platformio run -d /pio; rm -rf /pio
@@ -16,4 +19,4 @@ RUN platformio run -d /pio; rm -rf /pio
 COPY requirements.txt /requirements.txt
 
 RUN pip install --no-cache-dir -r /requirements.txt && \
-    pip install --no-cache-dir tzlocal pillow
+    pip install --no-cache-dir tzlocal
diff --git a/esphomeyaml/writer.py b/esphomeyaml/writer.py
index e68d3d50ec..6e24c8c292 100644
--- a/esphomeyaml/writer.py
+++ b/esphomeyaml/writer.py
@@ -143,6 +143,9 @@ def replace_file_content(text, pattern, repl):
 
 def migrate_src_version_0_to_1():
     main_cpp = CORE.relative_build_path('src', 'main.cpp')
+    if not os.path.isfile(main_cpp):
+        return
+
     with codecs.open(main_cpp, 'r', encoding='utf-8') as f_handle:
         content = orig_content = f_handle.read()