Running rvm on a shared host prints output: "grep: /proc/devices: Operation not permitted"

[asvitkine]

Description

Running rvm on a shared host prints output: "grep: /proc/devices: Operation not permitted"

Steps to reproduce

$ rvm --version
grep: /proc/devices: Operation not permitted
rvm 1.29.12-next (master) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io]

Expected behavior

No grep: /proc/devices: Operation not permitted is printed.

Actual behavior

grep: /proc/devices: Operation not permitted is printed. Sometimes multiple times, depending on the command.

Environment info