Running 'testthat.R' [10s/13s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > # Needed for subshells openend in tests, and does no harm otherwise.
  > # See <https://github.com/hadley/testthat/issues/144> for details.
  > Sys.setenv(R_TESTS = '')
  > testthat::test_check('box')
  Loading required package: box
  
  Attaching package: 'box'
  
  The following object is masked from 'package:utils':
  
      help
  
  The following object is masked from 'package:base':
  
      file
  
  [ FAIL 2 | WARN 0 | SKIP 7 | PASS 543 ]
  
  == Skipped tests ===============================================================
  * On CRAN (3)
  * Only run on Windows (1)
  * Outside source code repository (3)
  
  == Failed tests ================================================================
  -- Failure (test-basic.r:167:5): r/core can be imported ------------------------
  '.__C__signature' %in% imports is not TRUE
  
  `actual`:   FALSE
  `expected`: TRUE 
  (inside "NULL")
  -- Error (test-basic.r:167:5): r/core can be imported --------------------------
  Error in `invokeRestart("continue_test")`: no 'restart' 'continue_test' found
  Backtrace:
       x
    1. +-box::use(mod/core_test) at test-basic.r:167:4
    2. | \-box:::map(use_one, imports, aliases, list(caller), use_call = list(sys.call()))
    3. |   \-base::Map(.f, ..., USE.NAMES = FALSE)
    4. |     \-base::mapply(FUN = f, ..., SIMPLIFY = FALSE)
    5. |       \-box `<fn>`(...)
    6. |         \-box:::rethrow_on_error(...)
    7. |           \-base::tryCatch(expr, error = function(error) rethrow(error, call))
    8. |             \-base tryCatchList(expr, classes, parentenv, handlers)
    9. |               \-base tryCatchOne(expr, names, parentenv, handlers[[1L]])
   10. |                 \-value[[3L]](cond)
   11. |                   \-box:::rethrow(error, call)
   12. |                     \-box:::throw(...)
   13. |                       \-base::stop(box_error(message, call = call, subclass = subclass))
   14. \-testthat `<fn>`(`<expcttn_>`)
   15.   \-base::invokeRestart("continue_test")
  
  [ FAIL 2 | WARN 0 | SKIP 7 | PASS 543 ]
  Error: Test failures
  Execution halted