execve("./a.out", ["./a.out"], 0x7fff12cd26d0 /* 20 vars */) = 0

arch_prctl(ARCH_SET_FS, 0x7ff53bb3b618) = 0

set_tid_address(0x7ff53bb3bbe8)         = 40778

socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3

brk(NULL)                               = 0x555556f23000

brk(0x555556f25000)                     = 0x555556f25000

mmap(0x555556f23000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x555556f23000

mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff53bb39000

connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 24) = 0

sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\2\0\0\0\17\0\0\0\t\0\0\0", iov_len=12}, {iov_base="www-data\0", iov_len=9}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 21

readv(3, [{iov_base="\2\0\0\0\1\0\0\0\0\0\0", iov_len=11}, {iov_base="\0", iov_len=1024}], 2) = 12

mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff53bb38000

close(3)                                = 0

munmap(0x7ff53bb39000, 4096)            = 0

munmap(0x7ff53bb38000, 4096)            = 0

ioctl(1, TIOCGWINSZ, {ws_row=59, ws_col=225, ws_xpixel=1575, ws_ypixel=826}) = 0

writev(1, [{iov_base="err=-1, errno=5", iov_len=15}, {iov_base="\n", iov_len=1}], 2err=-1, errno=5

) = 16

exit_group(0)                           = ?

+++ exited with 0 +++