output resource swallows lookup() errors.

[rkr-kununu]

It appears that output {} is not properly relaying errors, if a key within a map does not exist.

Terraform Version

version 0.7.13

Affected Resource(s)

• output

Terraform Configuration Files

variable "mymap" {
  type = "map"
  default = {
    a = "apple"
    b = "banana"
  }
}

output "exists" {
  value = "${var.mymap["a"]}"
}

output "failure" {
  value = "${var.mymap["non-existant"]}"
}

output "failure2" {
  value = "${lookup( var.mymap, "non-existant" )}"
}

Expected Behavior

Error configuring: 1 error(s) occurred:

* key "non-existant" does not exist in map var.mymap in:
....

Actual Behavior

The output for "failure" and "failure2" was not reported nor was displayed.

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

Outputs:

exists = apple

Steps to Reproduce

1. terraform apply

[mitchellh]

Dup #9080

[ghost]

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