Error(s) in re-building vignettes:
--- re-building 'authentication.Rmd' using rmarkdown
--- finished re-building 'authentication.Rmd'

--- re-building 'getting-started.Rmd' using rmarkdown
--- finished re-building 'getting-started.Rmd'

--- re-building 'placing-orders.Rmd' using rmarkdown
--- finished re-building 'placing-orders.Rmd'

--- re-building 'trade-data.Rmd' using rmarkdown

Attaching package: 'dplyr'

The following object is masked from 'package:testthat':

    matches

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Loading required package: lubridate

Attaching package: 'lubridate'

The following objects are masked from 'package:base':

    date, intersect, setdiff, union

Loading required package: PerformanceAnalytics
Loading required package: xts
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric


Attaching package: 'xts'

The following objects are masked from 'package:dplyr':

    first, last


Attaching package: 'PerformanceAnalytics'

The following object is masked from 'package:graphics':

    legend

Loading required package: quantmod
Loading required package: TTR
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
No encoding supplied: defaulting to UTF-8.
Quitting from lines 101-109 (trade-data.Rmd) 
Error: processing vignette 'trade-data.Rmd' failed with diagnostics:
GET https://www.bitmex.com/api/v1/trade?symbol=XBTUSD&count=1000&reverse=false&startTime=2019-05-03%2012%3A01%3A11.665999889373779 (www.bitmex.com/api/v1/trade-cac9bf.json)
--- failed re-building 'trade-data.Rmd'

SUMMARY: processing the following file failed:
  'trade-data.Rmd'

Error: Vignette re-building failed.
Execution halted