ctest failed on fedora s390x

[topazus]

+ /usr/bin/ctest --test-dir redhat-linux-build --output-on-failure --force-new-ctest-process -j2
Internal ctest changing into directory: /builddir/build/BUILD/spectra-1.1.0-build/spectra-1.1.0/redhat-linux-build
Test project /builddir/build/BUILD/spectra-1.1.0-build/spectra-1.1.0/redhat-linux-build
      Start  1: QR
      Start  2: Eigen
 1/28 Test  #1: QR ...............................   Passed    0.03 sec
      Start  3: Schur
 2/28 Test  #3: Schur ............................   Passed    0.57 sec
      Start  4: BKLDLT
 3/28 Test  #4: BKLDLT ...........................   Passed    0.75 sec
      Start  5: Arnoldi
 4/28 Test  #5: Arnoldi ..........................   Passed    0.00 sec
      Start  6: Orthogonalization
 5/28 Test  #6: Orthogonalization ................   Passed    0.01 sec
      Start  7: RitzPairs
 6/28 Test  #7: RitzPairs ........................   Passed    0.00 sec
      Start  8: SearchSpace
 7/28 Test  #8: SearchSpace ......................   Passed    0.00 sec
      Start  9: DenseGenMatProd
 8/28 Test  #9: DenseGenMatProd ..................   Passed    0.00 sec
      Start 10: DenseSymMatProd
 9/28 Test #10: DenseSymMatProd ..................   Passed    0.00 sec
      Start 11: SparseGenMatProd
10/28 Test #11: SparseGenMatProd .................   Passed    0.01 sec
      Start 12: SparseSymMatProd
11/28 Test #12: SparseSymMatProd .................   Passed    0.01 sec
      Start 13: SymEigs
12/28 Test  #2: Eigen ............................   Passed    2.90 sec
      Start 14: SymEigsShift
13/28 Test #14: SymEigsShift .....................   Passed    6.25 sec
      Start 15: HermEigs
14/28 Test #13: SymEigs ..........................   Passed    9.14 sec
      Start 16: GenEigs
15/28 Test #16: GenEigs ..........................   Passed    8.35 sec
      Start 17: GenEigsRealShift
16/28 Test #17: GenEigsRealShift .................   Passed   11.51 sec
      Start 18: GenEigsComplexShift
17/28 Test #15: HermEigs .........................   Passed   29.64 sec
      Start 19: SymGEigsCholesky
18/28 Test #18: GenEigsComplexShift ..............   Passed   28.45 sec
      Start 20: SymGEigsRegInv
19/28 Test #19: SymGEigsCholesky .................   Passed   25.32 sec
      Start 21: SymGEigsShift
20/28 Test #21: SymGEigsShift ....................   Passed    1.02 sec
      Start 22: SVD
21/28 Test #22: SVD ..............................   Passed    0.36 sec
      Start 23: JDSymEigsBase
22/28 Test #23: JDSymEigsBase ....................   Passed    0.00 sec
      Start 24: JDSymEigsDPRConstructor
23/28 Test #24: JDSymEigsDPRConstructor ..........   Passed    0.00 sec
      Start 25: DavidsonSymEigs
24/28 Test #25: DavidsonSymEigs ..................   Passed    3.23 sec
      Start 26: Example1
25/28 Test #26: Example1 .........................***Failed    0.00 sec

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Example1 is a Catch v2.13.8 host application.
Run with -? for options

-------------------------------------------------------------------------------
Example #144, (n, k, m) = (20, 5, 12)
-------------------------------------------------------------------------------
/builddir/build/BUILD/spectra-1.1.0-build/spectra-1.1.0/test/Example1.cpp:110
...............................................................................

/builddir/build/BUILD/spectra-1.1.0-build/spectra-1.1.0/test/Example1.cpp:69: FAILED:
  REQUIRE( diff == Approx(0.0).margin(1e-9) )
with expansion:
  0.5 == Approx( 0.0 )
with messages:
  nconv = 5
  niter = 1
  nops  = 13
  ||AU - UD||_inf = 9.28976e-16
  True eigenvalues =
   4.48574e-17
    0.0489435
    0.0489435
     0.190983
     0.190983
     0.412215
     0.412215
     0.690983
     0.690983
            1
            1
      1.30902
      1.30902
      1.58779
      1.58779
      1.80902
      1.80902
      1.95106
      1.95106
            2
  Estimated =
   1.30902
  1.58779
  1.80902
  1.95106
        2
  diff = 0.5

===============================================================================
test cases:  3 |  2 passed | 1 failed
assertions: 15 | 14 passed | 1 failed


      Start 27: Example2
26/28 Test #27: Example2 .........................   Passed    0.00 sec
      Start 28: Example3
27/28 Test #28: Example3 .........................   Passed    0.00 sec
28/28 Test #20: SymGEigsRegInv ...................   Passed   75.14 sec

96% tests passed, 1 tests failed out of 28

Total Test time (real) = 134.00 sec

The following tests FAILED:
	 26 - Example1 (Failed)

Ref: https://download.copr.fedorainfracloud.org/results/topazus/test/fedora-rawhide-s390x/08466419-spectra/builder-live.log.gz