Running ‘spelling.R’
  Running ‘testthat.R’ [18s/37s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(vroom)
  > 
  > test_check("vroom")
  
   *** caught segfault ***
  address 0xffffffff, cause 'memory not mapped'
  
  Traceback:
   1: vroom_(file, delim = delim %||% col_types$delim, col_names = col_names,     col_types = col_types, id = id, skip = skip, col_select = col_select,     name_repair = .name_repair, na = na, quote = quote, trim_ws = trim_ws,     escape_double = escape_double, escape_backslash = escape_backslash,     comment = comment, skip_empty_rows = skip_empty_rows, locale = locale,     guess_max = guess_max, n_max = n_max, altrep = vroom_altrep(altrep),     num_threads = num_threads, progress = progress)
   2: vroom(I("x\n6/28/2016"), delim = ",", col_types = list(x = col_date("%m/%/%Y")),     altrep = FALSE)
   3: eval_bare(quo_get_expr(.quo), quo_get_env(.quo))
   4: withCallingHandlers(expr, condition = function(cnd) {    if (!is.null(matched) || !matches(cnd)) {        return()    }    if (can_entrace(cnd)) {        cnd <- cnd_entrace(cnd)    }    matched <<- cnd    if (inherits(cnd, "message") || inherits(cnd, "warning")) {        cnd_muffle(cnd)    }    else if (inherits(cnd, "error") || inherits(cnd, "skip")) {        return_from(tl, cnd)    }})
   5: .capture(act$val <- eval_bare(quo_get_expr(.quo), quo_get_env(.quo)),     ...)
   6: quasi_capture(enquo(object), label, capture_matching_condition,     matches = cnd_matcher(class %||% base_class, regexp, ...))
   7: expect_condition_matching("error", {    {        object    }}, regexp = regexp, class = class, ..., info = info, label = label)
   8: expect_error(vroom(I("x\n6/28/2016"), delim = ",", col_types = list(x = col_date("%m/%/%Y")),     altrep = FALSE), "Unsupported format")
   9: eval(code, test_env)
  10: eval(code, test_env)
  11: withCallingHandlers({    eval(code, test_env)    if (!handled && !is.null(test)) {        skip_empty()    }}, expectation = handle_expectation, skip = handle_skip, warning = handle_warning,     message = handle_message, error = handle_error)
  12: doTryCatch(return(expr), name, parentenv, handler)
  13: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  14: tryCatchList(expr, names[-nh], parentenv, handlers[-nh])
  15: doTryCatch(return(expr), name, parentenv, handler)
  16: tryCatchOne(tryCatchList(expr, names[-nh], parentenv, handlers[-nh]),     names[nh], parentenv, handlers[[nh]])
  17: tryCatchList(expr, classes, parentenv, handlers)
  18: tryCatch(withCallingHandlers({    eval(code, test_env)    if (!handled && !is.null(test)) {        skip_empty()    }}, expectation = handle_expectation, skip = handle_skip, warning = handle_warning,     message = handle_message, error = handle_error), error = handle_fatal,     skip = function(e) {    })
  19: test_code(desc, code, env = parent.frame(), reporter = reporter)
  20: test_that("malformed date / datetime formats cause R errors",     {        expect_error(vroom(I("x\n6/28/2016"), delim = ",", col_types = list(x = col_date("%m/%/%Y")),             altrep = FALSE), "Unsupported format")        expect_error(vroom(I("x\n6/28/2016"), delim = ",", col_types = list(x = col_datetime("%m/%/%Y")),             altrep = FALSE), "Unsupported format")    })
  21: eval(code, test_env)
  22: eval(code, test_env)
  23: withCallingHandlers({    eval(code, test_env)    if (!handled && !is.null(test)) {        skip_empty()    }}, expectation = handle_expectation, skip = handle_skip, warning = handle_warning,     message = handle_message, error = handle_error)
  24: doTryCatch(return(expr), name, parentenv, handler)
  25: tryCatchOne(expr, names, parentenv, handlers[[1L]])
  26: tryCatchList(expr, names[-nh], parentenv, handlers[-nh])
  27: doTryCatch(return(expr), name, parentenv, handler)
  28: tryCatchOne(tryCatchList(expr, names[-nh], parentenv, handlers[-nh]),     names[nh], parentenv, handlers[[nh]])
  29: tryCatchList(expr, classes, parentenv, handlers)
  30: tryCatch(withCallingHandlers({    eval(code, test_env)    if (!handled && !is.null(test)) {        skip_empty()    }}, expectation = handle_expectation, skip = handle_skip, warning = handle_warning,     message = handle_message, error = handle_error), error = handle_fatal,     skip = function(e) {    })
  31: test_code(NULL, exprs, env)
  32: source_file(path, child_env(env), wrap = wrap)
  33: FUN(X[[i]], ...)
  34: lapply(test_paths, test_one_file, env = env, wrap = wrap)
  35: force(code)
  36: doWithOneRestart(return(expr), restart)
  37: withOneRestart(expr, restarts[[1L]])
  38: withRestarts(testthat_abort_reporter = function() NULL, force(code))
  39: with_reporter(reporters$multi, lapply(test_paths, test_one_file,     env = env, wrap = wrap))
  40: test_files(test_dir = test_dir, test_package = test_package,     test_paths = test_paths, load_helpers = load_helpers, reporter = reporter,     env = env, stop_on_failure = stop_on_failure, stop_on_warning = stop_on_warning,     wrap = wrap, load_package = load_package)
  41: test_files(test_dir = path, test_paths = test_paths, test_package = package,     reporter = reporter, load_helpers = load_helpers, env = env,     stop_on_failure = stop_on_failure, stop_on_warning = stop_on_warning,     wrap = wrap, load_package = load_package, parallel = parallel)
  42: test_dir("testthat", package = package, reporter = reporter,     ..., load_package = "installed")
  43: test_check("vroom")
  An irrecoverable exception occurred. R is aborting now ...