https://buildd.debian.org/status/logs.php?pkg=libxisf&ver=0.2.15-1


64-bit big endian:

...
4/4 Test #4: LibXISFTestReadSub ...............***Failed    8.74 sec
LZ4 decompression failed


75% tests passed, 1 tests failed out of 4

Total Test time (real) =   9.64 sec

The following tests FAILED:
	  4 - LibXISFTestReadSub (Failed)
Errors while running CTest
make[1]: *** [Makefile:74: test] Error 8


32-bit big endian:

...
4: Test command: /build/reproducible-path/libxisf-0.2.15/obj-powerpc-linux-gnu/LibXISFTest "/build/reproducible-path/libxisf-0.2.15/test/subblock-lz4hc-sh.xisf"
4: Working Directory: /build/reproducible-path/libxisf-0.2.15/obj-powerpc-linux-gnu
4: Test timeout computed to be: 10000000
1: Saving image
1: Loading image
3: terminate called after throwing an instance of 'std::length_error'
3:   what():  vector::_M_default_append
1/4 Test #3: LibXISFTestReadLZ4 ...............Subprocess aborted***Exception:   0.00 sec
terminate called after throwing an instance of 'std::length_error'
  what():  vector::_M_default_append

2/4 Test #1: LibXISFTest ......................   Passed    0.01 sec
4: terminate called after throwing an instance of 'std::length_error'
4:   what():  vector::_M_default_append
3/4 Test #4: LibXISFTestReadSub ...............Subprocess aborted***Exception:   0.01 sec
terminate called after throwing an instance of 'std::length_error'
  what():  vector::_M_default_append

4/4 Test #2: LibXISFTestRead ..................   Passed    0.40 sec

50% tests passed, 2 tests failed out of 4

Total Test time (real) =   0.40 sec

The following tests FAILED:
	  3 - LibXISFTestReadLZ4 (Subprocess aborted)
	  4 - LibXISFTestReadSub (Subprocess aborted)
Errors while running CTest
make[1]: *** [Makefile:74: test] Error 8