Error(s) in re-building vignettes:
  ...
--- re-building ‘Introduction.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 f7bb8e74, cause 'memory not mapped'

Traceback:
 1: fstretrieve(file_name, columns, from, to)
 2: read_fst(meta_info$path, j)
 3: `[.fst_table`(ft, logical_vec)
 4: ft[logical_vec]
 5: setDT(ft[logical_vec])
 6: select_fst(., Species, Sepal.Length, Sepal.Width)
 7: is.data.frame(x)
 8: setnames(.data, old = old_names, new = new_names)
 9: rename(., group = Species, sl = Sepal.Length, sw = Sepal.Width)
10: is.data.frame(x)
11: setorder(.data, ...)
12: arrange(., group, sl)
13: eval(parse(text = str_glue(".data[{dot_string}]")))
14: eval(parse(text = str_glue(".data[{dot_string}]")))
15: filter(., sl > 5)
16: select_dt(.data[0], ...)
17: select_dt(.data[0], ...) %>% names()
18: distinct(., sl, .keep_all = TRUE)
19: summarise(., sw = max(sw), by = group)
20: ft %>% select_fst(Species, Sepal.Length, Sepal.Width) %>% rename(group = Species,     sl = Sepal.Length, sw = Sepal.Width) %>% arrange(group, sl) %>%     filter(sl > 5) %>% distinct(sl, .keep_all = TRUE) %>% summarise(sw = max(sw),     by = group)
21: eval(substitute(expr), envir = parent.frame())
22: eval(substitute(expr), envir = parent.frame())
23: sys_time_print({    res = ft %>% select_fst(Species, Sepal.Length, Sepal.Width) %>%         rename(group = Species, sl = Sepal.Length, sw = Sepal.Width) %>%         arrange(group, sl) %>% filter(sl > 5) %>% distinct(sl,         .keep_all = TRUE) %>% summarise(sw = max(sw), by = group)})
24: eval(expr, envir, enclos)
25: eval(expr, envir, enclos)
26: withVisible(eval(expr, envir, enclos))
27: withCallingHandlers(withVisible(eval(expr, envir, enclos)), warning = wHandler,     error = eHandler, message = mHandler)
28: handle(ev <- withCallingHandlers(withVisible(eval(expr, envir,     enclos)), warning = wHandler, error = eHandler, message = mHandler))
29: timing_fn(handle(ev <- withCallingHandlers(withVisible(eval(expr,     envir, enclos)), warning = wHandler, error = eHandler, message = mHandler)))
30: evaluate_call(expr, parsed$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)
31: evaluate::evaluate(...)
32: 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$render,         options))
33: in_dir(input_dir(), evaluate(code, envir = env, new_device = FALSE,     keep_warning = !isFALSE(options$warning), keep_message = !isFALSE(options$message),     stop_on_error = if (options$error && options$include) 0L else 2L,     output_handler = knit_handlers(options$render, options)))
34: block_exec(params)
35: call_block(x)
36: process_group.block(group)
37: process_group(group)
38: 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$get("infile"),             ") ")    })
39: process_file(text, output)
40: knit(input, text = text, envir = envir, quiet = quiet)
41: knit2html(..., force_v1 = TRUE)
42: (if (grepl("\\.[Rr]md$", file)) knit2html_v1 else if (grepl("\\.[Rr]rst$",     file)) knit2pandoc else knit)(file, encoding = encoding,     quiet = quiet, envir = globalenv(), ...)
43: vweave(...)
44: engine$weave(file, quiet = quiet, encoding = enc)
45: doTryCatch(return(expr), name, parentenv, handler)
46: tryCatchOne(expr, names, parentenv, handlers[[1L]])
47: tryCatchList(expr, classes, parentenv, handlers)
48: 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)))})
49: tools:::buildVignettes(dir = "/home/ripley/R/packages/tests32/tidyft.Rcheck/vign_test/tidyft",     ser_elibs = "/tmp/Rtmpz4a4Sa/file1672c27378c.rds")
An irrecoverable exception occurred. R is aborting now ...