ruby error

ruby error

Installing pry 0.10.4
An error occurred while installing pry (0.10.4), and Bundler cannot continue.
Your disk is out of space. Free some space to be able to install your bundle.

In Gemfile:
  pry-byebug was resolved to 3.4.2, which depends on
    pry
[root@localhost systemd-gitlab3]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda2      7.5G  5.8G  1.3G  82% /
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           1.7G     0  1.7G   0% /dev/shm
tmpfs           1.7G  9.0M  1.7G   1% /run
tmpfs           1.7G     0  1.7G   0% /sys/fs/cgroup
/dev/xvda1      465M  133M  304M  31% /boot
tmpfs           172M     0  172M   0% /run/user/0
[root@localhost systemd-gitlab3]# df -i
Filesystem     Inodes  IUsed  IFree IUse% Mounted on
/dev/xvda2     502944 502943      1  100% /
devtmpfs       479073    366 478707    1% /dev
tmpfs          443286      1 443285    1% /dev/shm
tmpfs          443179    552 442627    1% /run
tmpfs          443030     16 443014    1% /sys/fs/cgroup
/dev/xvda1     124928    341 124587    1% /boot
tmpfs          219542      1 219541    1% /run/user/0