Error(s) in re-building vignettes:
  ...
--- re-building ‘algorithm.Rmd’ using rmarkdown
--- finished re-building ‘algorithm.Rmd’

--- re-building ‘extend.Rmd’ using rmarkdown
--- finished re-building ‘extend.Rmd’

--- re-building ‘overview.Rmd’ using rmarkdown
Could not fetch https://travis-ci.org/daattali/ddpcr.svg?branch=master
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:41 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=GlSUWLfUloxUhvXtRLxxJurRrTMyTg3q%2FVtYmjVP1wn35dZk8eeipxen3mHtCj%2FihA13A5nH0kz4MRrH4nJ9wxqgP%2B6WHBRvY3UrcgdDX2GTK%2B2hDDeP0T3YZ7BhwAF%2B\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae16450fece3254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:41 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=KCBW8j8eSBBvECzJbRIdI22cIiGddOjOQveMyB90ARPPnT7CNJjryZ1duJycKSOiJLTYq0Ggd%2FlvAcK3esp2ZtHQPkm8jyI%2FUjSSHOstVH0pA6Sw1V6Ggy22nX7QK%2FNN\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae164503d983254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:41 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=H2uG17cyh6xOH6r%2B2qBgIpa0Ub9AT4p8QoUTE4%2FWHjMusvTumOnXefzEbtsWiUuOOCwzRmpoXurfVfhQp0U6Q5VBV%2F9ODqojnbqAZ8lrNRrB9s2rRodFdHU5Vuh63VXx\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae1644f7c763254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:41 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=K%2BlDgq8bG59SRib6GIQrSH7GSMvvjHSnSwsjHtcalTrtRVk1fhkjOkmKjGUg2weWCqWvGz6gynavt05agx3rM6rnHW2hzWVYVlNnHVQDwBW4UthZeOEKnV075h1wYT5c\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae1644ebb463254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:40 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=doNv5yuVd5bh9iez11xvb%2BIhpB%2FGI7tn7%2FM4BUVKZ%2BI9kWqIm45Vmm2fKOZh4ERP2iYf%2F%2B6JnvUAS7X%2FpFxLsnkmD%2BjIx%2B2MTn5Z6LnQ%2BDUhwLfwsKbqS%2Fdm%2BAby3eGz\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae1644d28ff3254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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},Response {responseStatus = Status {statusCode = 308, statusMessage = "Permanent Redirect"}, responseVersion = HTTP/1.1, responseHeaders = [("Date","Sun, 26 Mar 2023 18:17:40 GMT"),("Content-Type","text/html"),("Transfer-Encoding","chunked"),("Connection","keep-alive"),("Location","https://travis-ci.org/daattali/ddpcr.svg?branch=master"),("CF-Cache-Status","BYPASS"),("Report-To","{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=DgdQ6HAuF8OC7GIN0BX9XfN2477vCgMs91eHcsUJgRumpxwNt9Z8%2B458jilL%2Fpz8cRfG3oN8dFO2hXU6wo4xBpp0klWQz%2FFi%2BlIVdcvagk16MSw17WI8ZwduUO6bb%2F7A\"}],\"group\":\"cf-nel\",\"max_age\":604800}"),("NEL","{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}"),("Vary","Accept-Encoding"),("Server","cloudflare"),("CF-RAY","7ae164494a5b3254-VIE"),("alt-svc","h3=\":443\"; ma=86400, h3-29=\":443\"; ma=86400")], responseBody = "<html>\r\n<head><title>308 Permanent Redirect</title></head>\r\n<body>\r\n<center><h1>308 Permanent Redirect</h1></center>\r\n<hr><center>openresty</center>\r\n</body>\r\n</html>\r\n", responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
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Error: processing vignette ‘overview.Rmd’ failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building ‘overview.Rmd’

--- re-building ‘technical_details.Rmd’ using rmarkdown
--- finished re-building ‘technical_details.Rmd’

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

Error: Vignette re-building failed.
Execution halted