Running 'testthat-class.R' [1s]
  Running 'testthat-exe1.R' [1s]
  Running 'testthat-exe2.R' [2s]
  Running 'testthat-exe3.R' [1s]
  Running 'testthat-nldoc.R' [24s]
  Running 'testthat-simul.R' [4s]
  Running 'testthat-util.R' [2s]
Running the tests in 'tests/testthat-nldoc.R' failed.
Complete output:
  > Sys.unsetenv("R_TESTS")
  > 
  > library(testthat)
  > library(nlrx)
  > 
  > test_check("nlrx", filter = "nldoc")
  "D:/compiler/pandoc/pandoc" +RTS -K512m -RTS nldoc.utf8.md --to html4 --from markdown+autolink_bare_uris+tex_math_single_backslash --output nldoc.html --self-contained --standalone --section-divs --table-of-contents --toc-depth 3 --template "D:\temp\Rtmp8UWWnF\RLIBS_2e83503b352e1\rmarkdown\rmd\h\default.html" --no-highlight --variable highlightjs=1 --number-sections --variable "theme:cosmo" --include-in-header "D:\temp\RtmpycSaI5\rmarkdown-str2f80c43a0e14a8.html" --mathjax --variable "mathjax-url:https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" 
  pandoc.exe: Could not fetch http://ccl.northwestern.edu/images/creativecommons/byncsa.png
  HttpExceptionRequest Request {
    host                 = "ccl.northwestern.edu"
    port                 = 80
    secure               = False
    requestHeaders       = []
    path                 = "/images/creativecommons/byncsa.png"
    queryString          = ""
    method               = "GET"
    proxy                = Nothing
    rawBody              = False
    redirectCount        = 10
    responseTimeout      = ResponseTimeoutDefault
    requestVersion       = HTTP/1.1
  }
   (ConnectionFailure connect: failed (Connection timed out (WSAETIMEDOUT)))
  == Failed tests ================================================================
  -- Error (test-nldoc.R:14:5): nldoc --------------------------------------------
  Error: pandoc document conversion failed with error 67
  Backtrace:
      x
   1. \-nlrx::nldoc(...) test-nldoc.R:14:4
   2.   \-nlrx:::nldoc_write_nldoc(...)
   3.     \-rmarkdown::render(mdfile)
   4.       \-rmarkdown:::convert(output_file, run_citeproc)
   5.         \-rmarkdown::pandoc_convert(...)
  
  [ FAIL 1 | WARN 0 | SKIP 0 | PASS 0 ]
  Error: Test failures
  Execution halted