Hi,

since upgrade to 1.15.6 I can't create any virtual machine anymore
when I start a simple new host creation (just a clone of the template, no modifications) I see the message :

Unable to save
Failed to create a compute vpshere-lyon (VMware) instance foo.example.com: InvalidRequest: Required property diskId is missing from data object of type VirtualMachineRelocateSpecDiskLocator while parsing serialized DataObject of type vim.vm.RelocateSpec.DiskLocator at line 1, column 507 while parsing property "disk" of static type ArrayOfVirtualMachineRelocateSpecDiskLocator while parsing serialized DataObject of type vim.vm.RelocateSpec at line 1, column 359 while parsing property "location" of static type VirtualMachineRelocateSpec while parsing serialized DataObject of type vim.vm.CloneSpec at line 1, column 318 while parsing call information for method CloneVM_Task at line 1, column 177 while parsing SOAP body at line 1, column 167 while parsing SOAP envelope at line 1, column 0 while parsing HTTP request for method clone on object of type vim.VirtualMachine at line 1, column 0

And in the logs :

2017-10-31T18:08:44 f00149dd [app] [W] Failed to create a compute vpshere (VMware) instance foo.example.com: InvalidRequest:
 | Required property diskId is missing from data object of type VirtualMachineRelocateSpecDiskLocator
 |
 | while parsing serialized DataObject of type vim.vm.RelocateSpec.DiskLocator
 | at line 1, column 507
 |
 | while parsing property "disk" of static type ArrayOfVirtualMachineRelocateSpecDiskLocator
 |
 | while parsing serialized DataObject of type vim.vm.RelocateSpec
 | at line 1, column 359
 |
 | while parsing property "location" of static type VirtualMachineRelocateSpec
 |
 | while parsing serialized DataObject of type vim.vm.CloneSpec
 | at line 1, column 318
 |
 | while parsing call information for method CloneVM_Task
 | at line 1, column 177
 |
 | while parsing SOAP body
 | at line 1, column 167
 |
 | while parsing SOAP envelope
 | at line 1, column 0
 |
 | while parsing HTTP request for method clone
 | on object of type vim.VirtualMachine
 | at line 1, column 0
 |
 | RbVmomi::Fault: InvalidRequest:
 | Required property diskId is missing from data object of type VirtualMachineRelocateSpecDiskLocator
 |
 | while parsing serialized DataObject of type vim.vm.RelocateSpec.DiskLocator
 | at line 1, column 507
 |
 | while parsing property "disk" of static type ArrayOfVirtualMachineRelocateSpecDiskLocator
 |
 | while parsing serialized DataObject of type vim.vm.RelocateSpec
 | at line 1, column 359
 |
 | while parsing property "location" of static type VirtualMachineRelocateSpec
 |
 | while parsing serialized DataObject of type vim.vm.CloneSpec
 | at line 1, column 318
 |
 | while parsing call information for method CloneVM_Task
 | at line 1, column 177
 |
 | while parsing SOAP body
 | at line 1, column 167
 |
 | while parsing SOAP envelope
 | at line 1, column 0
 |
 | while parsing HTTP request for method clone
 | on object of type vim.VirtualMachine
 | at line 1, column 0
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rbvmomi-1.11.3/lib/rbvmomi/connection.rb:63:in `parse_response'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rbvmomi-1.11.3/lib/rbvmomi/connection.rb:92:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rbvmomi-1.11.3/lib/rbvmomi/basic_types.rb:213:in `_call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rbvmomi-1.11.3/lib/rbvmomi/basic_types.rb:76:in `block (2 levels) in init'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/fog-vsphere-1.13.1/lib/fog/vsphere/requests/compute/vm_clone.rb:678:in `vm_clone'
 | /usr/share/foreman/app/models/compute_resources/foreman/model/vmware.rb:476:in `clone_vm'
 | /usr/share/foreman/app/models/compute_resources/foreman/model/vmware.rb:410:in `create_vm'
 | /usr/share/foreman/app/models/concerns/orchestration/compute.rb:77:in `setCompute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:216:in `execute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:144:in `block in process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:136:in `each'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:136:in `process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:44:in `around_save_orchestration'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `block in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_save_callbacks'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/callbacks.rb:302:in `create_or_update'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/persistence.rb:120:in `save'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/validations.rb:37:in `save'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/attribute_methods/dirty.rb:21:in `save'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:286:in `block (2 levels) in save'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:351:in `block in with_transaction_returning_status'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:220:in `transaction'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:348:in `with_transaction_returning_status'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:286:in `block in save'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:301:in `rollback_active_record_state!'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/transactions.rb:285:in `save'
 | /usr/share/foreman/app/models/concerns/foreman/sti.rb:29:in `save_with_type'
 | /usr/share/foreman/app/controllers/hosts_controller.rb:104:in `create'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/abstract_controller/base.rb:198:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/rendering.rb:10:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:117:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:117:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /usr/share/foreman/app/controllers/concerns/application_shared.rb:15:in `set_timezone'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `block in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /usr/share/foreman/app/models/concerns/foreman/thread_session.rb:32:in `clear_thread'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `block in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /usr/share/foreman/app/controllers/concerns/foreman/controller/topbar_sweeper.rb:12:in `set_topbar_sweeper_controller'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `block in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/audited-4.5.0/lib/audited/sweeper.rb:14:in `around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:455:in `public_send'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:455:in `block in make_lambda'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:312:in `block in halting'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:497:in `block in around'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:505:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/abstract_controller/callbacks.rb:19:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/rescue.rb:29:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/notifications.rb:164:in `block in instrument'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/notifications.rb:164:in `instrument'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/abstract_controller/base.rb:137:in `process'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionview-4.2.8/lib/action_view/rendering.rb:30:in `process'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal.rb:196:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_controller/metal.rb:237:in `block in action'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/routing/route_set.rb:74:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/routing/route_set.rb:43:in `serve'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/journey/router.rb:43:in `block in serve'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/journey/router.rb:30:in `each'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/journey/router.rb:30:in `serve'
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 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/head.rb:13:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
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 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activerecord-4.2.8/lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:88:in `__run_callbacks__'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/rack/logger.rb:38:in `call_app'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/rack/logger.rb:22:in `call'
 | /usr/share/foreman/lib/middleware/tagged_logging.rb:18:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/request_id.rb:21:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/methodoverride.rb:22:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/runtime.rb:18:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/activesupport-4.2.8/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/actionpack-4.2.8/lib/action_dispatch/middleware/static.rb:120:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/sendfile.rb:113:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/secure_headers-3.7.2/lib/secure_headers/middleware.rb:12:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/engine.rb:518:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/application.rb:165:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/railtie.rb:194:in `public_send'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/railties-4.2.8/lib/rails/railtie.rb:194:in `method_missing'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/urlmap.rb:66:in `block in call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/urlmap.rb:50:in `each'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/rack-1.6.8/lib/rack/urlmap.rb:50:in `call'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/rack/thread_handler_extension.rb:97:in `process_request'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:160:in `accept_and_process_next_request'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:113:in `main_loop'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler.rb:416:in `block (3 levels) in start_threads'
 | /usr/lib/ruby/vendor_ruby/phusion_passenger/utils.rb:113:in `block in create_thread_and_abort_on_exception'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/logging-2.2.2/lib/logging/diagnostic_context.rb:474:in `call'
 | /usr/share/foreman/vendor/ruby/2.1.0/gems/logging-2.2.2/lib/logging/diagnostic_context.rb:474:in `block in create_with_logging_context'