Pipelines sometimes fails to load global libraries when starting jobs in parallel.
see log below.

Started by user anonymous
Loading library GlobalLib@master
> git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
> git config remote.origin.url https://stash.srv.company.com/scm/globallib.git # timeout=10
Fetching upstream changes from https://stash.srv.company.com/scm/globallib.git
> git --version # timeout=10
using GIT_ASKPASS to set credentials
> git fetch --tags --progress https://stash.srv.company.com/scm/globallib.git +refs/heads/:refs/remotes/origin/
ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from https://stash.srv.company.com/scm/globallib.git
at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:803)
at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1063)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1094)
at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:109)
at org.jenkinsci.plugins.workflow.libs.SCMSourceRetriever.doRetrieve(SCMSourceRetriever.java:107)
at org.jenkinsci.plugins.workflow.libs.SCMRetriever.retrieve(SCMRetriever.java:63)
at org.jenkinsci.plugins.workflow.libs.LibraryAdder.retrieve(LibraryAdder.java:150)
at org.jenkinsci.plugins.workflow.libs.LibraryAdder.add(LibraryAdder.java:131)
at org.jenkinsci.plugins.workflow.libs.LibraryDecorator$1.call(LibraryDecorator.java:99)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1053)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546)
at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:67)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:429)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:392)
at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:221)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:404)
Caused by: hudson.plugins.git.GitException: Command "git fetch --tags --progress https://stash.srv.company.com/scm/globallib.git +refs/heads/:refs/remotes/origin/" returned status code 1:
stdout:
stderr: error: cannot lock ref 'refs/remotes/origin/master': ref refs/remotes/origin/master is at fb4e6e25248afacb6ead1843d5004d866c09d5e7 but expected 66596bf220f874f58d78028f1199f6bee4d8de14
From https://stash.srv.company.com/scm/globallib
! 66596bf..fb4e6e2 master -> origin/master (unable to update local ref)

at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1784)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1513)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:64)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:315)
at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:801)
... 22 more
ERROR: null
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
WorkflowScript: Loading libraries failed

1 error

at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1073)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546)
at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:67)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:429)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:392)
at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:221)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:404)
Finished: FAILURE