Fail to report address sanitizer errors

[jgfoster]

One of our tests has an error but the test still shows as green.

==8529==ERROR: AddressSanitizer: unknown-crash on address 0x632000014ceb at pc 0x7fc6dd17b31a bp 0x7ffd31281aa0 sp 0x7ffd31281a90

...

Free space of 5998 is less than minimum of 6000
1577
           ✗
1578
Failures: 6

I wonder if my change to check for size at the end of the tests ended up masking the errors.

[jgfoster]

The problem was in the way we called the test script in our project, not with arduino_ci. That's a relief!