Error in re-building vignettes:
  ...
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
0%   10   20   30   40   50   60   70   80   90   100%
[----|----|----|----|----|----|----|----|----|----|
****************************************Error: C stack usage  232232248 is too close to the limit

 *** caught segfault ***
address 11000015, cause 'memory not mapped'
Warning: stack imbalance in 'lazyLoadDBfetch', 39 then 7

 *** caught segfault ***
address 100005, cause 'memory not mapped'
Warning: stack imbalance in 'lazyLoadDBfetch', 20 then 23

Traceback:
 1: block_exec(params)
 2: call_block(x)
 3: process_group.block(group)
 4: process_group(group)
 5: withCallingHandlers(if (tangle) process_tangle(group) else process_group(group),     error = function(e) {        setwd(wd)        cat(res, sep = "\n", file = output %n% "")        message("Quitting from lines ", paste(current_lines(i),             collapse = "-"), " (", knit_concord$get("infile"),             ") ")    })
 6: process_file(text, output)
 7: knit(input, text = text, envir = envir, encoding = encoding,     quiet = quiet)
 8: knit2html(..., force_v1 = TRUE)
 9: (if (grepl("\\.[Rr]md$", file)) knit2html_v1 else if (grepl("\\.[Rr]rst$",     file)) knit2pandoc else knit)(file, encoding = encoding,     quiet = quiet, envir = globalenv(), ...)
10: vweave(...)
11: engine$weave(file, quiet = quiet, encoding = enc)
12: doTryCatch(return(expr), name, parentenv, handler)
13: tryCatchOne(expr, names, parentenv, handlers[[1L]])
14: tryCatchList(expr, classes, parentenv, handlers)
15: tryCatch({    engine$weave(file, quiet = quiet, encoding = enc)    setwd(startdir)    find_vignette_product(name, by = "weave", engine = engine)}, error = function(e) {    stop(gettextf("processing vignette '%s' failed with diagnostics:\n%s",         file, conditionMessage(e)), domain = NA, call. = FALSE)})
16: buildVignettes(dir = "/home/ripley/R/packages/tests32/HDclust.Rcheck/vign_test/HDclust")
An irrecoverable exception occurred. R is aborting now ...
Quitting from lines 102-106 (HDclust.Rmd)