Contents check failed.
Column values differ: b
0    1.0001
1    2.0001
2    3.0001
3    4.0001
4    5.0001
Name: b, dtype: float64
vs.
0    1.0002
1    2.0002
2    3.0002
3    4.0002
4    5.0002
Name: b, dtype: float64
