rust-openssl assumes that borrowed error data is 'static and not free()'d by the underlying library:

https://github.com/sfackler/rust-openssl/blob/01166fa74c5d398feb5fbf1914a9188869ddabc2/openssl/src/error.rs#L169

However, this isn't the case in boringssl and aws-lc. They have a workaround that explicitly calls out rust-openssl as having a wrong assumption here:

https://github.com/google/boringssl/blob/480148ccc9444f5323b84389a6660e33ae38d4cb/crypto/err/err.cc#L184-L187

https://github.com/aws/aws-lc/blob/f4f0be9fc1a894121c56a2a3b06b043f15465249/crypto/err/err.c#L293-L296

Unfortunately, the workaround has been broken by additions in c3b714e

and now malloced strings from boringssl and aws-lc are treated again as 'static, which is incorrect:

https://github.com/sfackler/rust-openssl/blob/01166fa74c5d398feb5fbf1914a9188869ddabc2/openssl/src/error.rs#L136-L138