I just came across an issue where I updated my vagrant config and tried to provision the box, but it kept erroring out with the following error:
==> default: Error: printf "\\n" | pecl -d preferred_state=stable install pecl_http returned 1 instead of one of  ==> default: Error: /Stage[main]/Puphpet_php/Puphpet::Php::Pecl[pecl_http]/Php::Pecl::Module[pecl_http]/Exec[pecl-pecl_http]/returns: change from notrun to 0 failed: printf "\\n" | pecl -d preferred_state=stable install pecl_http returned 1 instead of one of  ==> default: Warning: /Stage[main]/Puphpet_php/Service[php5-fpm]: Skipping because of failed dependencies
In order to fix this I logged into the server using SSH, and then manually ran the install pecl_http command that it was trying to run in the above error message. In doing so I got a different error:
$ sudo pecl -d preferred_state=stable install pecl_http
pecl/pecl_http requires package "pecl/raphf" (version >= 1.1.0), installed version is 1.0.4 No valid packages found install failed
It turns out that a pecl dependency was out of date and so it couldn’t install the pecl_http package. In order to fix it I just ran the pecl upgrade command.
vagrant up vagrant ssh sudo pecl upgrade
After running the above, I tried my vagrant provision again, and hey presto! Everything was working again as normal