Error(s) in re-building vignettes:
--- re-building ‘a-intro.Rmd’ using rmarkdown
Quitting from lines 30-31 (a-intro.Rmd) 
Error: processing vignette 'a-intro.Rmd' failed with diagnostics:
Error during request:
Server error: (502) Bad Gateway
--- failed re-building ‘a-intro.Rmd’

--- re-building ‘b-dimensions.Rmd’ using rmarkdown
Quitting from lines 21-22 (b-dimensions.Rmd) 
Error: processing vignette 'b-dimensions.Rmd' failed with diagnostics:
Error during request:
Server error: (502) Bad Gateway
--- failed re-building ‘b-dimensions.Rmd’

sh: line 1:  4591 Segmentation fault      (core dumped) '/data/gannet/ripley/R/R-devel/bin/R' --vanilla --no-echo > '/tmp/RtmpY4pRgt/working_dir/Rtmp1xEmHu/file1b5f22e61954' 2>&1 < '/tmp/RtmpY4pRgt/working_dir/Rtmp1xEmHu/file1b5f238b72b1'
--- re-building ‘c-codes-gho.Rmd’ using rmarkdown
Quitting from lines 21-22 (c-codes-gho.Rmd) 

 *** caught segfault ***
address 0x3620, cause 'memory not mapped'

Traceback:
 1: dev.off(dv)
 2: block_exec(params)
 3: call_block(x)
 4: process_group.block(group)
 5: process_group(group)
 6: 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$get("infile"),             ") ")    })
 7: process_file(text, output)
 8: knitr::knit(knit_input, knit_output, envir = envir, quiet = quiet,     encoding = encoding)
 9: rmarkdown::render(file, encoding = encoding, quiet = quiet, envir = globalenv(),     ...)
10: vweave_rmarkdown(...)
11: engine$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)    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)))})
16: tools:::.buildOneVignette("c-codes-gho.Rmd", "/data/gannet/ripley/R/packages/tests-devel/rgho.Rcheck/vign_test/rgho",     TRUE, FALSE, "c-codes-gho", "UTF-8", "/tmp/RtmpY4pRgt/working_dir/Rtmp1xEmHu/file1b5f1d669f7e.rds")
An irrecoverable exception occurred. R is aborting now ...
--- re-building ‘d-codes-country.Rmd’ using rmarkdown
Quitting from lines 21-28 (d-codes-country.Rmd) 
Error: processing vignette 'd-codes-country.Rmd' failed with diagnostics:
Error during request:
Server error: (502) Bad Gateway
--- failed re-building ‘d-codes-country.Rmd’

--- re-building ‘e-details.Rmd’ using rmarkdown
--- finished re-building ‘e-details.Rmd’

SUMMARY: processing the following files failed:
  ‘a-intro.Rmd’ ‘b-dimensions.Rmd’ ‘c-codes-gho.Rmd’
  ‘d-codes-country.Rmd’

Error: Vignette re-building failed.
Execution halted