Running a pipeline build runs successfully. However in the console output I receive multiple lines in a row saying:
Cannot contact <slave>: java.io.IOException: Remote call on <slave> failed
Cannot contact <slave>: java.io.IOException: Remote call on <slave> failed
Cannot contact <slave>: java.io.IOException: Remote call on <slave> failed
Cannot contact <slave>: java.io.IOException: Remote call on <slave> failed
Until it eventually does connect and continues with the build steps. This output seems to occur more than once throughout the build (roughly 4 times for this particular job). The job ends up finishing successfully so this output doesn't seem to affect the build process.
Looks like a duplicate of https://issues.jenkins-ci.org/browse/JENKINS-42428
I'll close this out.