locate (and updatedb) is not finding a file

edit

My locate doesn't work for me for some reason. I am using Fedora release 21. This is how I test to see if locate is working:

gavin@localhost:~$ cd
gavin@localhost:~$ touch hellothere
gavin@localhost:~$ sudo updatedb
[sudo] password for gavin: 
gavin@localhost:~$ locate hellothere
gavin@localhost:~$ sudo locate hellothere
gavin@localhost:~$

I actually deleted the database and reindexed, but that didn't help:

sudo rm /var/lib/mlocate/mlocate.db
sudo updatedb

(edited to not use /tmp, and use ~ instead)

Here is information on my filesystems:

[~/mnt]$ cat /etc/updatedb.conf                                                                                                                                                       *[master] 
PRUNE_BIND_MOUNTS = "yes"
PRUNEFS = "9p afs anon_inodefs auto autofs bdev binfmt_misc cgroup cifs coda configfs cpuset debugfs devpts ecryptfs exofs fuse fuse.sshfs fusectl gfs gfs2 hugetlbfs inotifyfs iso9660 jffs2 lustre mqueue ncpfs nfs nfs4 nfsd pipefs proc ramfs rootfs rpc_pipefs securityfs selinuxfs sfs sockfs sysfs tmpfs ubifs udf usbfs"
PRUNENAMES = ".git .hg .svn"
PRUNEPATHS = "/afs /media /mnt /net /sfs /tmp /udev /var/cache/ccache /var/lib/yum/yumdb /var/spool/cups /var/spool/squid /var/tmp"
[~/mnt]$ df -h                                                                                                                                                                        *[master] 
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       227G   81G  146G  36% /
devtmpfs        2.9G     0  2.9G   0% /dev
tmpfs           2.9G   24M  2.9G   1% /dev/shm
tmpfs           2.9G  932K  2.9G   1% /run
tmpfs           2.9G     0  2.9G   0% /sys/fs/cgroup
tmpfs           2.9G  405M  2.5G  14% /tmp
/dev/sda3       227G   81G  146G  36% /home
/dev/sda1       477M  154M  295M  35% /boot
tmpfs           587M   48K  587M   1% /run/user/1000
/dev/sr0        1.4G  1.4G     0 100% /run/media/gavin/Fedora-Live-WS-x86_64-21-5


[~]$ cat /etc/fstab 
#
# /etc/fstab
# Created by anaconda on Tue Dec  9 20:56:27 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=c660d346-c6bd-4beb-9fca-df0878258dfd /                       btrfs   subvol=root     0 0
UUID=71609ae1-3876-48df-96e3-900a45982442 /boot                   ext4    defaults        1 2
UUID=c660d346-c6bd-4beb-9fca-df0878258dfd /home                   btrfs   subvol=home     0 0
UUID=e2935984-7e92-4efc-8440-c3992f2a9f53 swap                    swap    defaults        0 0