Catch docker run exceptions

Former-commit-id: 68c7f91052

app/build_npms.py

@@ -23,7 +23,7 @@ from decouple import config
 import click
 import importlib.resources
 from pathlib import Path
-from python_on_whales import docker
+from python_on_whales import docker, DockerException
 import yaml
 from .util import include_exclude_check
 
@@ -84,6 +84,7 @@ def command(ctx, include, exclude):
             if verbose:
                 print(f"Executing: {build_command}")
             envs = {"CERC_NPM_AUTH_TOKEN": os.environ["CERC_NPM_AUTH_TOKEN"]} | ({"CERC_SCRIPT_DEBUG": "true"} if debug else {})
+            try:
                 build_result = docker.run("cerc/builder-js",
                                           remove=True,
                                           interactive=True,
@@ -96,6 +97,8 @@ def command(ctx, include, exclude):
                                           )
                 # TODO: check result in build_result.returncode
                 print(f"Result is: {build_result}")
+            except DockerException as e:
+                print(f"FATAL error executing build in container:\n {e}")
         else:
             print("Skipped")