Here's the output from the last attempt. I'm guessing I have an unmet dependency (or a version mismatch) in rake but this really isn't my area of expertise.
sudo apt-get install concerto-full
Reading package lists... Done
Building dependency tree
Reading state information... Done
concerto-full is already the newest version (2.3.6).
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up concerto-full (2.3.6) ...
Determining localhost credentials from /etc/mysql/debian.cnf: succeeded.
dbconfig-common: writing config to /etc/dbconfig-common/concerto-full.conf
concerto already exists and has privileges on concerto_production.
creating database concerto_production: already exists.
dbconfig-common: flushing administrative password
Successfully installed bundler-2.0.1
1 gem installed
Using rake 12.0.0
Using i18n 0.8.6
Using minitest 5.10.3
Using thread_safe 0.3.6
Using tzinfo 1.2.3
Using activesupport 4.2.9
Using builder 3.2.3
Using erubis 2.7.0
Using mini_portile2 2.2.0
Using nokogiri 1.8.0
Using rails-deprecated_sanitizer 1.0.3
Using rails-dom-testing 1.0.8
Using loofah 2.0.3
Using rails-html-sanitizer 1.0.3
Using actionview 4.2.9
Using rack 1.6.8
Using rack-test 0.6.3
Using actionpack 4.2.9
Using globalid 0.4.0
Using activejob 4.2.9
Using mime-types-data 3.2016.0521
Using mime-types 3.1
Using mail 2.6.6
Using actionmailer 4.2.9
Using activemodel 4.2.9
Using arel 6.0.4
Using activerecord 4.2.9
Using addressable 2.3.8
Using airbrake-ruby 1.8.0
Using airbrake 5.8.1
Using ansi 1.5.0
Using ast 2.3.0
Using attachable 0.0.5
Using bcrypt 3.1.11
Using thor 0.19.4
Using railties 4.2.9
Using bootstrap-datepicker-rails 1.6.4.1
Using bundler 2.0.1
Using bundler-audit 0.6.0
Using cancancan 2.0.0
Using clockwork 2.0.2
Using coffee-script-source 1.12.2
Using execjs 2.2.2
Using coffee-script 2.4.1
Using coffee-rails 4.2.2
Using multipart-post 2.0.0
Using faraday 0.9.2
Using jwt 1.5.6
Using little-plugger 1.1.4
Using multi_json 1.12.1
Using logging 2.2.2
Using memoist 0.16.0
Using os 0.9.6
Using signet 0.7.3
Using googleauth 0.5.1
Using httpclient 2.8.3
Using hurley 0.2
Using declarative 0.0.9
Using declarative-option 0.1.0
Using uber 0.1.0
Using representable 3.0.4
Using retriable 3.1.1
Using google-api-client 0.10.3
Using icalendar 2.4.1
Using hike 1.2.3
Using tilt 1.4.1
Using sprockets 2.11.3
Using sprockets-rails 2.3.3
Using rails 4.2.9
Using concerto_calendar 0.0.9
Using concerto_docsplit 0.7.5
Using concerto_frontend 0.4.3
Using concerto_hardware 0.8
Using concerto_iframe 0.1.0
Using htmlentities 4.3.4
Using iso8601 0.9.1
Using ruby-ll 2.1.2
Using oga 2.10
Using open_uri_redirections 0.2.1
Using video_info 2.5.0
Using concerto_remote_video 1.2
Using encryptor 3.0.0
Using ruby-xslt 0.9.9
Using concerto_simple_rss 1.1
Using concerto_weather 0.6
Using connection_pool 1.2.0
Using delayed_job 4.1.3
Using delayed_job_active_record 4.1.2
Using orm_adapter 0.5.0
Using responders 2.4.0
Using warden 1.2.7
Using devise 3.5.10
Using docile 1.1.5
Using ffi 1.9.18
Using rb-fsevent 0.10.2
Using rb-inotify 0.9.10
Using sass-listen 4.0.0
Using sass 3.5.1
Using font-awesome-sass 4.7.0
Using rubinius-core-api 0.0.1
Using rubinius-actor 0.0.2
Using girl_friday 0.11.2
Using google-analytics-turbolinks 0.0.5
Using i18n-js 3.0.1
Using jquery-rails 4.3.1
Using jquery-timepicker-rails 1.11.10
Using json 2.1.0
Using kaminari-core 1.0.1
Using kaminari-actionview 1.0.1
Using kaminari-activerecord 1.0.1
Using kaminari 1.0.1
Using libv8 3.16.14.19 (x86_64-linux)
Using mysql2 0.4.9
Using nprogress-rails 0.2.0.2
Using sawyer 0.6.0
Using octokit 4.2.0
Using public_activity 1.5.0
Using redcarpet 3.3.4
Using ref 2.0.0
Using rmagick 2.16.0
Using rubyzip 1.2.1
Using sass-rails 5.0.6
Using simplecov-html 0.10.2
Using simplecov 0.15.0
Using sqlite3 1.3.13
Using therubyracer 0.12.3
Using turbolinks 2.5.3
Using twitter-bootstrap-rails-confirm 1.0.6
Using uglifier 2.7.2
Bundle complete! 48 Gemfile dependencies, 129 gems now installed.
Gems in the groups postgres and development were not installed.
Bundled gems are installed into `./vendor/bundle`
rake aborted!
Timeout::Error: execution expired
/usr/share/concerto/config/initializers/01-db_create_load_or_migrate.rb:50:in `sleep'
/usr/share/concerto/config/initializers/01-db_create_load_or_migrate.rb:50:in `block in <top (required)>'
/usr/share/concerto/config/initializers/01-db_create_load_or_migrate.rb:47:in `<top (required)>'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `load'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `block in load'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `load'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/engine.rb:652:in `block in load_config_initializer'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/notifications.rb:166:in `instrument'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/engine.rb:651:in `load_config_initializer'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/engine.rb:615:in `each'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/engine.rb:615:in `block in <class:Engine>'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:30:in `instance_exec'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:30:in `run'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:55:in `block in run_initializers'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:44:in `each'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:44:in `tsort_each_child'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/initializable.rb:54:in `run_initializers'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/application.rb:352:in `initialize!'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/railtie.rb:194:in `public_send'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/railtie.rb:194:in `method_missing'
/usr/share/concerto/config/environment.rb:10:in `<top (required)>'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/application.rb:328:in `require_environment!'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/railties-4.2.9/lib/rails/application.rb:457:in `block in run_tasks_blocks'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/airbrake-5.8.1/lib/airbrake/rake/task_ext.rb:19:in `execute'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/sprockets-rails-2.3.3/lib/sprockets/rails/task.rb:64:in `block (2 levels) in define'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/airbrake-5.8.1/lib/airbrake/rake/task_ext.rb:19:in `execute'
/usr/share/concerto/vendor/bundle/ruby/2.3.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
Tasks: TOP => environment
(See full trace by running task with --trace)
dpkg: error processing package concerto-full (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
concerto-full
E: Sub-process /usr/bin/dpkg returned an error code (1)