[pulseaudio-discuss] anyone else seeing this failure?

[Nix]

Freshly-compiled PA 0.9.12:

nix at hades 167 /home/nix% start-pulseaudio-x11
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
I: caps.c: Dropping root priviliges.
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
E: main.c: Daemon startup failed.
*** glibc detected *** /usr/bin/pulseaudio: free(): invalid pointer: 0x080593e0 ***
/usr/bin/start-pulseaudio-x11: line 22: 20450 Aborted                 /usr/bin/pulseaudio --start "$@"

It's hard to debug it. Even as root I get garbage backtraces.

Anyone else seen anything similar?