Error(s) in re-building vignettes:
  ...
--- re-building ‘ASSISTant.Rmd’ using rmarkdown

 *** caught segfault ***
address 0x81, cause 'memory not mapped'

Traceback:
 1: regroup(attr(out, "groups"), environment())
 2: filter.tbl_df(., !is.na(stage_Ihat))
 3: dplyr::filter(., !is.na(stage_Ihat))
 4: function_list[[i]](value)
 5: freduce(value, `_function_list`)
 6: `_fseq`(`_lhs`)
 7: eval(quote(`_fseq`(`_lhs`)), env, env)
 8: eval(quote(`_fseq`(`_lhs`)), env, env)
 9: withVisible(eval(quote(`_fseq`(`_lhs`)), env, env))
10: result %>% dplyr::group_by(stage_Ihat, Ihat) %>% dplyr::filter(!is.na(stage_Ihat)) %>%     dplyr::summarize(mean = mean(lost), sd = sd(lost)) %>% dplyr::rename(FutilityStage = stage_Ihat,     selectedGroup = Ihat)
11: designA$analyze(result)
12: eval(expr, envir, enclos)
13: eval(expr, envir, enclos)
14: withVisible(eval(expr, envir, enclos))
15: withCallingHandlers(withVisible(eval(expr, envir, enclos)), warning = wHandler,     error = eHandler, message = mHandler)
16: handle(ev <- withCallingHandlers(withVisible(eval(expr, envir,     enclos)), warning = wHandler, error = eHandler, message = mHandler))
17: timing_fn(handle(ev <- withCallingHandlers(withVisible(eval(expr,     envir, enclos)), warning = wHandler, error = eHandler, message = mHandler)))
18: evaluate_call(expr, parsed$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)
19: evaluate::evaluate(...)
20: 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$render,         options))
21: in_dir(input_dir(), evaluate(code, envir = env, new_device = FALSE,     keep_warning = !isFALSE(options$warning), keep_message = !isFALSE(options$message),     stop_on_error = if (options$error && options$include) 0L else 2L,     output_handler = knit_handlers(options$render, options)))
22: block_exec(params)
23: call_block(x)
24: process_group.block(group)
25: process_group(group)
26: 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$get("infile"),             ") ")    })
27: process_file(text, output)
28: knitr::knit(knit_input, knit_output, envir = envir, quiet = quiet)
29: rmarkdown::render(file, encoding = encoding, quiet = quiet, envir = globalenv(),     output_dir = getwd(), ...)
30: vweave_rmarkdown(...)
31: engine$weave(file, quiet = quiet, encoding = enc)
32: doTryCatch(return(expr), name, parentenv, handler)
33: tryCatchOne(expr, names, parentenv, handlers[[1L]])
34: tryCatchList(expr, classes, parentenv, handlers)
35: 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)    }}, error = function(e) {    OK <<- FALSE    message(gettextf("Error: processing vignette '%s' failed with diagnostics:\n%s",         file, conditionMessage(e)))})
36: tools:::.buildOneVignette("ASSISTant.Rmd", "/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/ASSISTant.Rcheck/vign_test/ASSISTant",     TRUE, FALSE, "ASSISTant", "UTF-8", "/home/hornik/tmp/scratch/RtmpzzHmGf/file22ab72a0b881.rds")
An irrecoverable exception occurred. R is aborting now ...
Segmentation fault
--- re-building ‘Rankin.Rmd’ using rmarkdown
[WARNING] Could not parse YAML metadata at line 20 column 1: Unexpected '
  '
[WARNING] This document format requires a nonempty <title> element.
  Defaulting to 'Rankin.utf8' as the title.
  To specify a title, use 'title' in metadata or --metadata title="...".
--- finished re-building ‘Rankin.Rmd’

--- re-building ‘defuse3.Rmd’ using rmarkdown
[WARNING] Could not parse YAML metadata at line 20 column 1: Unexpected '
  '
pandoc-citeproc: reference Lai2014191 not found
pandoc-citeproc: reference Lai201593 not found
[WARNING] This document format requires a nonempty <title> element.
  Defaulting to 'defuse3.utf8' as the title.
  To specify a title, use 'title' in metadata or --metadata title="...".
--- finished re-building ‘defuse3.Rmd’

SUMMARY: processing the following file failed:
  ‘ASSISTant.Rmd’

Error: Vignette re-building failed.
Execution halted