Error(s) in re-building vignettes:
  ...
--- re-building ‘gganimate.Rmd’ using rmarkdown
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: magick_image_write(image, format, quality, depth, density, comment)
 2: image_write(x, path = tmp, format = ext)
 3: in_dir(d, expr)
 4: in_base_dir({    dir.create(dirname(tmp), showWarnings = FALSE, recursive = TRUE)    image_write(x, path = tmp, format = ext)})
 5: `knit_print.magick-image`(anim, options, ...)
 6: knitr::knit_print(anim, options, ...)
 7: knit_print.gganim(x, ...)
 8: knit_print(x, ...)
 9: withVisible(knit_print(x, ...))
10: fun(x, options = options)
11: value_fun(ev$value, ev$visible)
12: withVisible(value_fun(ev$value, ev$visible))
13: withCallingHandlers(withVisible(value_fun(ev$value, ev$visible)),     warning = wHandler, error = eHandler, message = mHandler)
14: handle(pv <- withCallingHandlers(withVisible(value_fun(ev$value,     ev$visible)), warning = wHandler, error = eHandler, message = mHandler))
15: evaluate_call(expr, parsed$src[[i]], envir = envir, enclos = enclos,     debug = debug, last = i == length(out), use_try = stop_on_error !=         2L, keep_warning = keep_warning, keep_message = keep_message,     output_handler = output_handler, include_timing = include_timing)
16: evaluate::evaluate(...)
17: evaluate(code, envir = env, new_device = FALSE, keep_warning = !isFALSE(options$warning),     keep_message = !isFALSE(options$message), stop_on_error = if (options$error &&         options$include) 0L else 2L, output_handler = knit_handlers(options$render,         options))
18: in_dir(input_dir(), evaluate(code, envir = env, new_device = FALSE,     keep_warning = !isFALSE(options$warning), keep_message = !isFALSE(options$message),     stop_on_error = if (options$error && options$include) 0L else 2L,     output_handler = knit_handlers(options$render, options)))
19: block_exec(params)
20: call_block(x)
21: process_group.block(group)
22: process_group(group)
23: withCallingHandlers(if (tangle) process_tangle(group) else process_group(group),     error = function(e) {        setwd(wd)        cat(res, sep = "\n", file = output %n% "")        message("Quitting from lines ", paste(current_lines(i),             collapse = "-"), " (", knit_concord$get("infile"),             ") ")    })
24: process_file(text, output)
25: knit(input, text = text, envir = envir, quiet = quiet)
26: knit2html(..., force_v1 = TRUE)
27: (if (grepl("\\.[Rr]md$", file)) knit2html_v1 else if (grepl("\\.[Rr]rst$",     file)) knit2pandoc else knit)(file, encoding = encoding,     quiet = quiet, envir = globalenv(), ...)
28: vweave(...)
29: engine$weave(file, quiet = quiet, encoding = enc)
30: doTryCatch(return(expr), name, parentenv, handler)
31: tryCatchOne(expr, names, parentenv, handlers[[1L]])
32: tryCatchList(expr, classes, parentenv, handlers)
33: tryCatch({    engine$weave(file, quiet = quiet, encoding = enc)    setwd(startdir)    output <- find_vignette_product(name, by = "weave", engine = engine)    if (!have.makefile && vignette_is_tex(output)) {        texi2pdf(file = output, clean = FALSE, quiet = quiet)        output <- find_vignette_product(name, by = "texi2pdf",             engine = engine)    }    outputs <- c(outputs, output)}, error = function(e) {    thisOK <<- FALSE    fails <<- c(fails, file)    message(gettextf("Error: processing vignette '%s' failed with diagnostics:\n%s",         file, conditionMessage(e)))})
34: tools:::buildVignettes(dir = "/home/ripley/R/packages/tests32/gganimate.Rcheck/vign_test/gganimate",     ser_elibs = "/tmp/Rtmp7zayQD/file3b536b2c4f3b.rds")
An irrecoverable exception occurred. R is aborting now ...