Started by upstream project "clean-old-builds" build number 1920
originally caused by:
 Started by timer
Running as SYSTEM
[EnvInject] - Loading node environment variables.
Building remotely on sofa-ci-windows10-4 (default debug package release builder options windows_vs2019 rebootable cleanable) in workspace J:\jenkins2\workspace\clean-old-builds
[EnvInject] - Inject global passwords.
[EnvInject] - Mask passwords that will be passed as build parameters.
[clean-old-builds] $ bash C:\Users\ci\AppData\Local\Temp\jenkins8965256951115552537.sh

--------------- Clone/update CI scripts ---------------
pwd = /j/jenkins2/workspace/clean-old-builds
HEAD is now at 51b8765 Add fetching of STLIB (#20)
CI scripts are available in /j/jenkins2/workspace/clean-old-builds/ci/scripts
-------------------------------------------------------

Filesystem            Size  Used Avail Use% Mounted on
C:/Program Files/Git   50G   41G  8.8G  83% /
J:                    100G   39G   62G  39% /j
----------------- clean-old-builds.sh -----------------
ENV VARS: load /j/jenkins2/workspace/clean-old-builds/ci/scripts/env/default
ENV VARS: load node specific /j/jenkins2/workspace/clean-old-builds/ci/scripts/env/sofa-ci-windows10-4
C:/Python38/python.exe
------------------
free_space = 63973260
max_days_since_modified_short = 1/2
max_days_since_modified_long = 6
------------------

Cleaning in J:\jenkins2\workspace\clean-old-builds/../sofa-framework
  PR-3929:
    All valid configs were removed
    -> PR-3929 removed
  PR-3959:
    All valid configs were removed
    -> PR-3959 removed
rm: cannot remove 'PR-3959/windows_vs2019_options_release/build': Device or resource busy
-------------------------------------------------------
Filesystem            Size  Used Avail Use% Mounted on
C:/Program Files/Git   50G   41G  8.8G  83% /
J:                    100G   30G   71G  30% /j
Build step 'Execute shell' marked build as failure
Finished: FAILURE