compile from master crash

[thorro]

Debian Buster with cmake installed from testing.

Compile from master branch is crashing on mount:

tmfs /mnt2 /mnt3 -ouid=$(id -u),gid=$(id -g),allow_other

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
[1]    28515 abort      tmfs /mnt2 /mnt3 -ouid=$(id -u),gid=$(id -g),allow_other

ll /mnt2

total 16397
drwxr-xr-x  1 root root        8 Nov 12  2019  .
drwxr-xr-x 36 root root       36 Dec 24 23:37  ..
drwxr-xr-x  1 root root        6 Nov 13  2019  Backups.backupdb
dr-xr-xr-t  1 root root   135846 Nov 12  2019 '.HFS+ Private Directory Data'$'\r'
----------  1 root root 16777216 Nov 12  2019  .journal
----------  1 root root     4096 Nov 12  2019  .journal_info_block
drwx------  1 root root        5 Nov 12  2019  .Spotlight-V100

If I build r7 release, it mounts without error but I get error on ls:

ll /mnt3 ls: cannot access '/mnt3': Transport endpoint is not connected