Comment 10 for bug 1822218

The process memory map shows that while one _can_ crash in the way I mentioned earlier this is likely not what has happened. In reality the 19.04 linker linked the 16.04 libc to a binary linked against 19.04 libc (without detecting any incompatibility).

/usr/bin/clear
/snap/core/6673/lib/x86_64-linux-gnu/libc-2.23.so
/usr/lib/x86_64-linux-gnu/libtinfo.so.6.1
/usr/lib/x86_64-linux-gnu/ld-2.29.so

It would suggest that the true incompatibility is in the libc, not in the dynamic linker.