Error in re-building vignettes:
  ...

 *** caught segfault ***
address 0x2, cause 'memory not mapped'

Traceback:
 1: .External("mergeXts", all = all[1:2], fill = fill, setclass = setclass,     symnames = symnames, suffixes = suffixes, retside = retside,     env = new.env(), tzone = tzone, ..., PACKAGE = "xts")
 2: merge.xts(..., all = all, fill = fill, suffixes = suffixes)
 3: cbind(deparse.level, ...)
 4: cbind(x@time, 1:nrow(x@time))
 5: rural[, "2005::2010"]
 6: rural[, "2005::2010"]
 7: eval(expr, .GlobalEnv)
 8: eval(expr, .GlobalEnv)
 9: withVisible(eval(expr, .GlobalEnv))
10: doTryCatch(return(expr), name, parentenv, handler)
11: tryCatchOne(expr, names, parentenv, handlers[[1L]])
12: tryCatchList(expr, classes, parentenv, handlers)
13: tryCatch(expr, error = function(e) {    call <- conditionCall(e)    if (!is.null(call)) {        if (identical(call[[1L]], quote(doTryCatch)))             call <- sys.call(-4L)        dcall <- deparse(call)[1L]        prefix <- paste("Error in", dcall, ": ")        LONG <- 75L        sm <- strsplit(conditionMessage(e), "\n")[[1L]]        w <- 14L + nchar(dcall, type = "w") + nchar(sm[1L], type = "w")        if (is.na(w))             w <- 14L + nchar(dcall, type = "b") + nchar(sm[1L],                 type = "b")        if (w > LONG)             prefix <- paste0(prefix, "\n  ")    }    else prefix <- "Error : "    msg <- paste0(prefix, conditionMessage(e), "\n")    .Internal(seterrmessage(msg[1L]))    if (!silent && identical(getOption("show.error.messages"),         TRUE)) {        cat(msg, file = outFile)        .Internal(printDeferredWarnings())    }    invisible(structure(msg, class = "try-error", condition = e))})
14: try(withVisible(eval(expr, .GlobalEnv)), silent = TRUE)
15: evalFunc(ce, options)
16: tryCatchList(expr, classes, parentenv, handlers)
17: tryCatch(evalFunc(ce, options), finally = {    cat("\n")    sink()})
18: driver$runcode(drobj, chunk, chunkopts)
19: utils::Sweave(...)
20: engine$weave(file, quiet = quiet, encoding = enc)
21: doTryCatch(return(expr), name, parentenv, handler)
22: tryCatchOne(expr, names, parentenv, handlers[[1L]])
23: tryCatchList(expr, classes, parentenv, handlers)
24: 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)})
25: buildVignettes(dir = "/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/gstat.Rcheck/vign_test/gstat")
An irrecoverable exception occurred. R is aborting now ...
Segmentation fault