chronos@localhost ~/Downloads $ sudo crouton -t core,cli-extra,audio,extension,lxde-desktop
Password: 
WARNING: Your rootfs is writable. Signed boot verification cannot be enabled.
If this is a surprise to you, you should do a full system recovery via USB.
Installing xenial-armhf chroot to /usr/local/chroots/xenial
Downloading bootstrap files...
debootstrap error log:
[.[] | select((.extendedSupport // .support) > (now | strftime("%Y-%m-%d")) and (.codename | test($suite; "i")))] | isempty(.[]) | not                                                error: strftime is not defined
[.[] | select((.extendedSupport // .support) > (now | strftime("%Y-%m-%d")) and (.codename | test($suite; "i")))] | isempty(.[]) | not                                                      error: test is not defined
[.[] | select((.extendedSupport // .support) > (now | strftime("%Y-%m-%d")) and (.codename | test($suite; "i")))] | isempty(.[]) | not                                                                                             4 compile errors
Failed to run debootstrap.
chronos@localhost ~/Downloads $