I am trying to run the Jenkins job for data migration and the remote repository which is configured in my Jenkins job is a BitBucket private repository. It fails to fetch from the repository if it's private however works smooth with public ones. I have posted the error message that I am getting. Any kind of help on this issue would be appreciated. Thank you!

Also, I have tried the following techniques to achieve the same but to no avail.
Username with password, SSH key with and without passphrase, changing the working directory,

Started by user Akshaya Appaswamy
Building in workspace C:\Program Files (x86)\Jenkins\workspace\WinZonePOC
> git.exe rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
> git.exe config remote.origin.url https://akshaya1993@bitbucket.org/saitharunn7/winzonepoc.git # timeout=10
Fetching upstream changes from https://akshaya1993@bitbucket.org/saitharunn7/winzonepoc.git
> git.exe --version # timeout=10
using GIT_SSH to set credentials
> git.exe fetch --tags --progress https://akshaya1993@bitbucket.org/saitharunn7/winzonepoc.git +refs/heads/:refs/remotes/origin/
ERROR: Timeout after 10 minutes
ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from https://akshaya1993@bitbucket.org/saitharunn7/winzonepoc.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 hudson.scm.SCM.checkout(SCM.java:495)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1278)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:604)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
at hudson.model.Run.execute(Run.java:1720)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:404)
Caused by: hudson.plugins.git.GitException: Command "git.exe fetch --tags --progress https://akshaya1993@bitbucket.org/saitharunn7/winzonepoc.git +refs/heads/:refs/remotes/origin/" returned status code -1:
stdout:
stderr:
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1745)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1489)
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)
... 11 more
ERROR: null
Finished: FAILURE