Error(s) in re-building vignettes:
--- re-building ‘connections.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-clang/streamConnect.Rcheck/vign_test/streamConnect/vignettes/connections_files/figure-html/unnamed-chunk-7-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 19400 bytes
Input file size = 19502 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16581
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16581

Output IDAT size = 16581 bytes (2819 bytes decrease)
Output file size = 16659 bytes (2843 bytes = 14.58% decrease)

*    Trying 127.0.0.1:7323...
*  connect to 127.0.0.1 port 7323 failed: Connection refused
*    Trying ::1:7323...
*  connect to ::1 port 7323 failed: Connection refused
*  Failed to connect to localhost port 7323 after 2 ms: Connection refused
*  Closing connection 0
*  Hostname localhost was found in DNS cache
*    Trying 127.0.0.1:7323...
*  connect to 127.0.0.1 port 7323 failed: Connection refused
*    Trying ::1:7323...
*  connect to ::1 port 7323 failed: Connection refused
*  Failed to connect to localhost port 7323 after 6 ms: Connection refused
*  Closing connection 1
*  Hostname localhost was found in DNS cache
*    Trying 127.0.0.1:7323...
*  connect to 127.0.0.1 port 7323 failed: Connection refused
*    Trying ::1:7323...
*  connect to ::1 port 7323 failed: Connection refused
*  Failed to connect to localhost port 7323 after 7 ms: Connection refused
*  Closing connection 2

Quitting from lines 194-199 [unnamed-chunk-10] (connections.Rmd)
Error: processing vignette 'connections.Rmd' failed with diagnostics:
Failed to connect to localhost port 7323 after 7 ms: Connection refused
--- failed re-building ‘connections.Rmd’

SUMMARY: processing the following file failed:
  ‘connections.Rmd’

Error: Vignette re-building failed.
Execution halted