A report in the users list. He uses a custom workspace, too.
------------------
I'm unable to comment on the issue for some reason. In any case here's
some info:
1. It is repeatable.
2. The user is not letting Hudson use SCM. In the command area he's
pulling things out of Perforce directly. Don't ask me why...
3. No slaves.

Here is the config. XXX's are masks.

<?xml version='1.0' encoding='UTF-8'?>
<project>
<actions/>
<description></description>
<keepDependencies>false</keepDependencies>
<properties/>
<scm class="hudson.plugins.perforce.PerforceSCM">
<p4User>chelck</p4User>
<p4Passwd></p4Passwd>
<p4Port>XXXXXXXXXXX:1666</p4Port>
<p4Client>guest-hudson-ai-common</p4Client>
<projectPath>//depot/Ati/common/main/...</projectPath>
<p4Exe>/home/cc/bin/p4</p4Exe>
<p4SysDrive></p4SysDrive>
<p4SysRoot></p4SysRoot>
<depot>
<logger class="org.slf4j.impl.SimpleLogger">
<name>perforce</name>
</logger>
<settings>
<entry>
<string>SystemRoot</string>
<string></string>
</entry>
<entry>
<string>P4PORT</string>
<string>XXXXXXXXXXX:1666</string>
</entry>
<entry>
<string>CLASSPATH</string>
<string>/usr/share/java/p4.jar</string>
</entry>
<entry>
<string>P4USER</string>
<string>XXXXX</string>
</entry>
<entry>
<string>P4PASSWD</string>
<string>XXXXX</string>
</entry>
<entry>
<string>P4CLIENT</string>
<string>guest-hudson-ai-common</string>
</entry>
<entry>
<string>SystemDrive</string>
<string></string>
</entry>
<entry>
<string>PATH</string>
<string>/home/cc/bin</string>
</entry>
</settings>
<pathSep>:</pathSep>
<fileSep>/</fileSep>
<validEnvp>false</validEnvp>
<p4exe>/home/cc/bin/p4</p4exe>
<threshold>10000</threshold>
<execFactory
class="com.tek42.p
ce.process.DefaultExecutorFactory">
<env>
<entry>
<string>P4PORT</string>
<string>XXXXXXXXXXX:1666</string>
</entry>
<entry>
<string>SystemRoot</string>
<string></string>
</entry>
<entry>
<string>P4USER</string>
<string>XXXXXX</string>
</entry>
<entry>
<string>CLASSPATH</string>
<string>/usr/share/java/p4.jar</string>
</entry>
<entry>
<string>P4PASSWD</string>
<string>XXXXXXX</string>
</entry>
<entry>
<string>P4CLIENT</string>
<string>guest-hudson-ai-common</string>
</entry>
<entry>
<string>SystemDrive</string>
<string></string>
</entry>
<entry>
<string>PATH</string>
<string>/home/cc/bin</string>
</entry>
</env>
</execFactory>
<changes>
<depot reference="../.."/>
<logger class="org.slf4j.impl.SimpleLogger"
reference="../../logger"/>
</changes>
<workspaces>
<depot reference="../.."/>
<logger class="org.slf4j.impl.SimpleLogger"
reference="../../logger"/>
</workspaces>
<users>
<depot reference="../.."/>
<logger class="org.slf4j.impl.SimpleLogger"
reference="../../logger"/>
</users>
</depot>
<forceSync>false</forceSync>
<updateView>false</updateView>
<firstChange>-1</firstChange>
</scm>
<canRoam>true</canRoam>
<disabled>false</disabled>
<triggers class="vector">
<hudson.triggers.TimerTrigger>
<spec>0 0 * * *</spec>
</hudson.triggers.TimerTrigger>
</triggers>
<concurrentBuild>false</concurrentBuild>
<builders>
<hudson.tasks.Shell>
<command>export
ANT_HOME=/export/home/cc/applications/buildtools/ant/apache-ant-1.6.2
export PATH=${ANT_HOME}/bin:$PATH
>
</hudson.tasks.Shell>
</builders>
<publishers>
<hudson.tasks.ArtifactArchiver>
<artifacts>Ati/common/main/libs/common.jar</artifacts>
<latestOnly>true</latestOnly>
</hudson.tasks.ArtifactArchiver>
<hudson.tasks.JavadocArchiver>
<javadocDir>Ati/common/main/common_reports/javadoc</javadocDir>
<keepAll>false</keepAll>
</hudson.tasks.JavadocArchiver>
<hudson.plugins.warnings.WarningsPublisher>
<threshold></threshold>
<healthy></healthy>
<unHealthy></unHealthy>
<height></height>
<pluginName>[WARNINGS] </pluginName>
<thresholdLimit>low</thresholdLimit>
<parserNames/>
<canRunOnFailed>false</canRunOnFailed>
</hudson.plugins.warnings.WarningsPublisher>
<hudson.tasks.Mailer>
<recipients>Greg.Szumowski@us.icap.com</recipients>
<dontNotifyEveryUnstableBuild>false</dontNotifyEveryUnstableBuild>
<sendToIndividuals>true</sendToIndividuals>
</hudson.tasks.Mailer>
<hudson.tasks.BuildTrigger>
<childProjects>ai_main_server, ai_server_5.0</childProjects>
<threshold>
<name>SUCCESS</name>
<ordinal>0</ordinal>
<color>BLUE</color>
</threshold>
</hudson.tasks.BuildTrigger>
</publishers>
<buildWrappers/>

<customWorkspace>/home/cc/applications/hudson/jobs/ai_main_common/worksp
ace/</customWorkspace>
</project>

Code changed in hudson
User: : kohsuke
Path:
trunk/hudson/main/core/src/main/java/hudson/matrix/MatrixRun.java
trunk/hudson/main/core/src/main/java/hudson/model/AbstractBuild.java
trunk/hudson/main/core/src/main/java/hudson/model/AbstractProject.java
trunk/hudson/main/core/src/main/java/hudson/model/FreeStyleBuild.java
trunk/hudson/main/core/src/main/java/hudson/model/FreeStyleProject.java
trunk/hudson/main/core/src/main/java/hudson/slaves/WorkspaceList.java
trunk/hudson/main/maven-plugin/src/main/java/hudson/maven/MavenBuild.java
trunk/hudson/main/test/src/test/java/hudson/model/FreeStyleProjectTest.java
trunk/www/changelog.html
http://fisheye4.cenqua.com/changelog/hudson/?cs=20632
Log:
[FIXED JENKINS-4206] in 1.320. Custom workspace and new workspace lease scheme had a bad interaction.

CC += me
Looking forward to the release. Would have added that it happened for all our
builds during the short period I ran 1.319, that all builds use custom
workspace, and that we have one master and 3 slaves. We use Perforce as SCM.
Some jobs are tied to slaves, none to master (but many default to it).
But that's not important now

Hudson 1.321 works fine again for me. Issue can be closed?