Running 'spelling.R' [0s/0s]
  Running 'testthat.R' [18s/54s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(vroom)
  > 
  > test_check("vroom")
  -- 1. Failure: NAs included in levels if desired (@test-factor.R#55)  ----------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 2. Failure: NAs included in levels if desired (@test-factor.R#55)  ----------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 3. Failure: NAs included in levels if desired (@test-factor.R#55)  ----------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 4. Failure: NAs included in levels if desired (@test-factor.R#55)  ----------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 5. Failure: NAs included in levels if desired (@test-factor.R#60)  ----------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 6. Failure: NAs included in levels if desired (@test-factor.R#60)  ----------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 7. Failure: NAs included in levels if desired (@test-factor.R#60)  ----------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 8. Failure: NAs included in levels if desired (@test-factor.R#60)  ----------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 9. Failure: NAs included in levels if desired (@test-factor.R#70)  ----------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 10. Failure: NAs included in levels if desired (@test-factor.R#70)  ---------
  vroom(content, delim = delim, ...) not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 11. Failure: NAs included in levels if desired (@test-factor.R#70)  ---------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  -- 12. Failure: NAs included in levels if desired (@test-factor.R#70)  ---------
  `res` not equal to `equals`.
  Component "X1": 1, NA mismatch
  
  == testthat results  ===========================================================
  [ OK: 708 | SKIPPED: 5 | WARNINGS: 0 | FAILED: 12 ]
  1. Failure: NAs included in levels if desired (@test-factor.R#55) 
  2. Failure: NAs included in levels if desired (@test-factor.R#55) 
  3. Failure: NAs included in levels if desired (@test-factor.R#55) 
  4. Failure: NAs included in levels if desired (@test-factor.R#55) 
  5. Failure: NAs included in levels if desired (@test-factor.R#60) 
  6. Failure: NAs included in levels if desired (@test-factor.R#60) 
  7. Failure: NAs included in levels if desired (@test-factor.R#60) 
  8. Failure: NAs included in levels if desired (@test-factor.R#60) 
  9. Failure: NAs included in levels if desired (@test-factor.R#70) 
  1. ...
  
  Error: testthat unit tests failed
  Execution halted