Running ‘aunitizer.R’ [3s/5s]
  Running ‘runtt.R’ [105s/209s]
Running the tests in ‘tests/runtt.R’ failed.
Complete output:
  > if(require(testthat)) {
  +   # used to be in here, but had to move to see error messages under travis
  + 
  +   source('testthat/helper/runtt.R', local=TRUE)
  + } else {
  +   warning("Cannot run tests without `testthat` available")
  + }
  Loading required package: testthat
  State tracking is disabled by default to comply with CRAN policies. Add `options(unitizer.state='recommended')` to your 'Rprofile' file to enable, or `options(unitizer.state='off')` to quash this message without enabling.  See `?unitizerState` for details.
  setup packages
  setup demos
  Error in in_pkg_to_env(x.raw@par.env, test.files) : 
    Unable to detect package to use namespace of as parent environment; see `?
  unitizerState` for how to specify a package namespace explicitly as a parent 
  environment.
  Error in unitizer:::as.state(unitizer:::unitizerStateRaw(par.env = in_pkg()),  : 
    Unable to convert `par.env` value to a namespace environment
  
  [31m──[39m [31m1. Failure: namespace conflict (@testthat.utz1.R#272) [39m [31m──────────────────────[39m
  `txt4` has changed from known value recorded in 'helper/refobjs/unitize_nsconf1.rds'.
  Component "message": Lengths (60, 12) differ (string compare on first 12)
  
  [31m──[39m [31m2. Failure: namespace conflict (@testthat.utz1.R#275) [39m [31m──────────────────────[39m
  `txt5` has changed from known value recorded in 'helper/refobjs/unitize_nsconf2.rds'.
  Component "message": Lengths (58, 10) differ (string compare on first 10)
  
  [31m──[39m [31m3. Failure: namespace conflict (@testthat.utz1.R#278) [39m [31m──────────────────────[39m
  `txt6` has changed from known value recorded in 'helper/refobjs/unitize_errintry.rds'.
  Component "message": Lengths (71, 23) differ (string compare on first 23)
  Component "message": 6 string mismatches
  
  [31m──[39m [31m4. Failure: namespace conflict (@testthat.utz1.R#281) [39m [31m──────────────────────[39m
  `txt7` has changed from known value recorded in 'helper/refobjs/unitize_nsconf3.rds'.
  Component "message": Lengths (64, 16) differ (string compare on first 16)
  Component "message": 6 string mismatches
  
  
  ALL TESTS COMPLETED!
  ══ testthat results  ═══════════════════════════════════════════════════════════
  OK: 861 SKIPPED: 6 FAILED: 4
  1. Failure: namespace conflict (@testthat.utz1.R#272) 
  2. Failure: namespace conflict (@testthat.utz1.R#275) 
  3. Failure: namespace conflict (@testthat.utz1.R#278) 
  4. Failure: namespace conflict (@testthat.utz1.R#281) 
  
  Error: testthat unit tests failed
  Removing packages from '/home/hornik/tmp/scratch/RtmpBn62WL/RLIBS_7fe43f721654'
  (as 'lib' is unspecified)
  Execution halted