$ behave features/abort.feature --format json.pretty --outfile result.json

ABORTED: By user.

Failing scenarios:
  features/abort.feature:8  This failing scenario is tagged to abort on failure.

0 features passed, 1 failed, 0 skipped
0 scenarios passed, 1 failed, 0 skipped
1 step passed, 1 failed, 1 skipped, 0 undefined
Took 0m0.000s

$ cat result.json
[
{
  "description": [
    "In order to be able to debug an application", 
    "As a test engineer", 
    "I want to be able to abort a test run and get a complete JSON result file."
  ], 
  "elements": [
    {
      "keyword": "Example", 
      "location": "features/abort.feature:8", 
      "name": "This failing scenario is tagged to abort on failure.", 
      "status": "failed", 
      "steps": [
        {
          "keyword": "Given", 
          "location": "features/abort.feature:9", 
          "match": {
            "arguments": [], 
            "location": "features/steps/abort_steps.py:5"
          }, 
          "name": "this step passes", 
          "result": {
            "duration": 7.796287536621094e-05, 
            "status": "passed"
          }, 
          "step_type": "given"
        }, 
        {
          "keyword": "When", 
          "location": "features/abort.feature:10", 
          "match": {
            "arguments": [], 
            "location": "features/steps/abort_steps.py:10"
          }, 
          "name": "this step fails", 
          "result": {
            "duration": 0.00019598007202148438, 
            "error_message": "Assertion Failed: Step failed!", 
            "status": "failed"
          }, 
          "step_type": "when"
        }, 
        {
          "keyword": "Then", 
          "location": "features/abort.feature:11", 
          "name": "this step passes", 
          "step_type": "then"
        }
      ], 
      "tags": [
        "abort_on_fail"
      ], 
      "type": "scenario"
    }
  ], 
  "keyword": "Feature", 
  "location": "features/abort.feature:1", 
  "name": "Test behave abort behaviour.", 
  "status": "failed", 
  "tags": []
}
]