Improve 'passenger-config compile-agent' error reporting
Improve 'passenger-config compile-agent' error reporting

Save the full log to a file.

clemensg/passenger,cgvarela/passenger,clemensg/passenger,clemensg/passenger,phusion/passenger,antek-drzewiecki/passenger,phusion/passenger,antek-drzewiecki/passenger,cgvarela/passenger,kewaunited/passenger,cgvarela/passenger,phusion/passenger,clemensg/passenger,kewaunited/passenger,cgvarela/passenger,phusion/passenger,antek-drzewiecki/passenger,cgvarela/passenger,kewaunited/passenger,phusion/passenger,clemensg/passenger,antek-drzewiecki/passenger,kewaunited/passenger,kewaunited/passenger,clemensg/passenger,clemensg/passenger,clemensg/passenger,phusion/passenger,antek-drzewiecki/passenger,kewaunited/passenger,cgvarela/passenger,antek-drzewiecki/passenger,kewaunited/passenger,phusion/passenger,cgvarela/passenger,cgvarela/passenger,phusion/passenger,antek-drzewiecki/passenger,antek-drzewiecki/passenger,kewaunited/passenger