The /usr/lib/arm-linux-gnueabihf/libarmmem.so error is very commonly reported online against various snaps. I believe it’s due to raspbian adding that as an LD preload which is a “Replacement memcpy and memset functionality for the Raspberry Pi with the intention of gaining greater performance.” It comes from https://github.com/simonjhall/copies-and-fills and has been mentioned here Snapd on Raspbian (stretch)