Starting "dart" tests folder in workspace "hello_world"...
workbench#open()
Canceled Failed to load custom agents
Extension host (LocalProcess pid: 3009) is unresponsive.
Extension host (LocalProcess pid: 3009) is responsive.
UNRESPONSIVE extension host: received responsive event and cancelling profiling session
UNRESPONSIVE extension host: starting to profile NOW
Starting test runner...
UNRESPONSIVE extension host: 'dart-code.dart-code' took 75.40609625374488% of 54.87ms, saved PROFILE here: 'file:///tmp/exthost-a8c186.cpuprofile'
(node:3009) [DEP0169] DeprecationWarning: `url.parse()` behavior is not standardized and prone to errors that have security implications. Use the WHATWG URL API instead. CVEs are not issued for `url.parse()` vulnerabilities.
(Use `exe --trace-deprecation ...` to show where the warning was created)
Error: `.only` forbidden by --forbid-only