The error message I get from running ctest for Slic3r

ctestoutput.log

UpdateCTestConfiguration  from :/home/pi/Slic3r/build/DartConfiguration.tcl
UpdateCTestConfiguration  from :/home/pi/Slic3r/build/DartConfiguration.tcl
Test project /home/pi/Slic3r/build
Constructing a list of tests
Done constructing a list of tests
Checking test dependency graph...
Checking test dependency graph end
test 1
    Start 1: xs

1: Test command: /usr/bin/perl "/usr/bin/prove" "-I" "/home/pi/Slic3r/local-lib/lib/perl5"
1: Test timeout computed to be: 9.99988e+06
1: t/01_trianglemesh.t ............. ok
1: t/03_point.t .................... ok
1: t/04_expolygon.t ................ ok
1: t/05_surface.t .................. ok
1: t/06_polygon.t .................. ok
1: t/07_extrusionpath.t ............ ok
1: t/08_extrusionloop.t ............ ok
1: t/09_polyline.t ................. ok
1: t/10_line.t ..................... ok
1: t/11_clipper.t .................. ok
1: t/12_extrusionpathcollection.t .. ok
1: t/13_polylinecollection.t ....... ok
1: t/14_geometry.t ................. ok
1: t/15_config.t ................... ok
1: t/16_flow.t ..................... ok
1: t/17_boundingbox.t .............. ok
1: t/18_motionplanner.t ............ ok
1: t/19_model.t .................... ok
1: t/20_print.t .................... ok
1: t/21_gcode.t .................... ok
1: t/22_exception.t ................ ok
1: All tests successful.
1: Files=21, Tests=486, 12 wallclock secs ( 0.45 usr  0.15 sys + 10.01 cusr  1.24 csys = 11.85 CPU)
1: Result: PASS
1/2 Test #1: xs ...............................   Passed   12.05 sec
test 2
    Start 2: integration

2: Test command: /usr/bin/perl "/usr/bin/prove"
2: Test timeout computed to be: 9.99988e+06
2: t/angles.t ..................... ok
2: t/avoid_crossing_perimeters.t .. ok
2: t/bridges.t .................... ok
2: t/clean_polylines.t ............ ok
2: t/clipper.t .................... ok
2: t/collinear.t .................. ok
2: t/combineinfill.t .............. ok
2: t/config.t ..................... ok
2: t/cooling.t .................... ok
2: /usr/bin/perl: symbol lookup error: /home/pi/Slic3r/t/../local-lib/lib/perl5/arm-linux-gnueabihf-thread-multi-64int/auto/Slic3r/XS/XS.so: undefined symbol: _ZN5boost16re_detail_10660012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE14construct_initERKNS_11basic_regexIcSD_EENS_15regex_constants12_match_flagsE
2: t/custom_gcode.t ............... 
2: Dubious, test returned 127 (wstat 32512, 0x7f00)
2: Failed 63/77 subtests 
2: t/dynamic.t .................... skipped: variable-width paths are currently disabled
2: t/fill.t ....................... ok
2: t/flow.t ....................... ok
2: t/gaps.t ....................... ok
2: t/gcode.t ...................... ok
2: t/geometry.t ................... ok
2: t/layers.t ..................... ok
2: t/loops.t ...................... skipped: temporarily disabled
2: t/multi.t ...................... ok
2: t/perimeters.t ................. ok
2: t/polyclip.t ................... ok
2: t/print.t ...................... ok
2: t/retraction.t ................. ok
2: t/shells.t ..................... ok
2: t/skirt_brim.t ................. ok
2: t/slice.t ...................... skipped: temporarily disabled
2: t/support.t .................... skipped: temporarily disabled
2: t/svg.t ........................ ok
2: t/thin.t ....................... ok
2: t/threads.t .................... ok
2: 
2: Test Summary Report
2: -------------------
2: t/custom_gcode.t             (Wstat: 32512 Tests: 14 Failed: 0)
2:   Non-zero exit status: 127
2:   Parse errors: Bad plan.  You planned 77 tests but ran 14.
2: Files=30, Tests=386, 224 wallclock secs ( 0.56 usr  0.11 sys + 232.09 cusr  9.27 csys = 242.03 CPU)
2: Result: FAIL
2/2 Test #2: integration ......................***Failed  224.29 sec

50% tests passed, 1 tests failed out of 2

Total Test time (real) = 236.36 sec

The following tests FAILED:
	  2 - integration (Failed)
Errors while running CTest