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.

 *** caught segfault ***
address 0, cause 'memory not mapped'

Traceback:
 1: .Call(rmd_b64encode_data, readBin(inFile, "raw", n = fileSize))
 2: paste("data:", mime::guess_type(inFile), ";base64,", .Call(rmd_b64encode_data,     readBin(inFile, "raw", n = fileSize)), sep = "")
 3: .b64EncodeFile(inFile)
 4: sub(src, .b64EncodeFile(inFile), imgSrc, fixed = TRUE)
 5: FUN(X[[i]], ...)
 6: lapply(regmatches(html, m)[[1]], .b64EncodeImgSrc)
 7: unlist(lapply(regmatches(html, m)[[1]], .b64EncodeImgSrc))
 8: .b64EncodeImages(ret)
 9: eval(expr, envir, enclos)
10: eval(quote({    oldwd <- setwd(filedir)    on.exit(setwd(oldwd))    .b64EncodeImages(ret)}), new.env())
11: eval(expr, envir, enclos)
12: eval(expr, p)
13: eval.parent(substitute(eval(quote(expr), envir)))
14: local({    oldwd <- setwd(filedir)    on.exit(setwd(oldwd))    .b64EncodeImages(ret)})
15: markdown::markdownToHTML(out, output, encoding = encoding, ...)
16: knit2html(..., force_v1 = TRUE)
17: (if (grepl("\\.[Rr]md$", file)) knit2html_v1 else if (grepl("\\.[Rr]rst$",     file)) knit2pdf else knit)(file, encoding = encoding, quiet = quiet,     envir = globalenv())
18: vweave(...)
19: engine$weave(file, quiet = quiet, encoding = enc)
20: doTryCatch(return(expr), name, parentenv, handler)
21: tryCatchOne(expr, names, parentenv, handlers[[1L]])
22: tryCatchList(expr, classes, parentenv, handlers)
23: tryCatch({    engine$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)})
24: buildVignettes(dir = "/home/ripley/R/packages/tests32/Jdmbs.Rcheck/vign_test/Jdmbs")
An irrecoverable exception occurred. R is aborting now ...