BTW, I've seen similar error messages ending with ": Success" with
other software (e.g. dict and svn). The problem may come from a null
value in errno. But if errno is 0, there should be no errors.
This error has been reproduced several times for a short period.
Most of the time, there are no errors. Compiler options included:
-std=c99 -O3 -march=native -fprofile-generate
I can't provide the full command line since this came from a script
that runs permanently.
(No system information as I had to send the bug report from a
Debian/unstable machine, as reportbug is broken on Debian/stable.)