`ninja && ninja check`
Test failures:
```
Entering test module "Bitcoin ABC unit tests"
../src/test/validation_block_tests.cpp(40): Entering test suite "validation_block_tests"
../src/test/validation_block_tests.cpp(169): Entering test case "processnewblock_signals_ordering"
terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_M_construct null not valid
Aborted (core dumped)
[239/264] bitcoin: testing coinselector_tests
ninja: build stopped: subcommand failed.
```
In a debugging session, the crash happens around line 211 in `src/test/validation_block_tests.cpp`.
If this test is removed, another test fails.