Terraform: Terraform 0.13.1 crash during plan

[sdebruyn]

Terraform Version

Terraform 0.13.1

Terraform Configuration Files

Sorry, infra is big and private, can share only specific bits but I don't know what caused it.

Debug Output

------------------------------------------------------------------------
panic: not a collection type

goroutine 2415 [running]:
github.com/zclconf/go-cty/cty.Type.ElementType(0x2ce50a0, 0xc000fa0538, 0xc0008e18f8, 0x8)
    /home/circleci/project/project/vendor/github.com/zclconf/go-cty/cty/collection.go:25 +0xba
github.com/hashicorp/terraform/terraform.createEmptyBlocks(0xc000d07650, 0x2ce50a0, 0xc000fa0550, 0x2300040, 0xc001c570b0, 0x2ce50a0, 0xc000fa0688, 0x2300040, 0xc001ed1fb0)
    /home/circleci/project/project/terraform/eval_read_data_plan.go:242 +0x202
github.com/hashicorp/terraform/terraform.dataObjectHasChanges(0xc000d07650, 0x2ce50a0, 0xc000fa0550, 0x2300040, 0xc001c570b0, 0x2ce50a0, 0xc000fa0688, 0x2300040, 0xc001ed1fb0, 0x0, ...)
    /home/circleci/project/project/terraform/eval_read_data_plan.go:211 +0x19e
github.com/hashicorp/terraform/terraform.(*evalReadDataPlan).Eval(0xc002b4a000, 0x2d26860, 0xc000e14d00, 0x1, 0x1, 0x0, 0x0)
    /home/circleci/project/project/terraform/eval_read_data_plan.go:107 +0x1238
github.com/hashicorp/terraform/terraform.EvalRaw(0x2c7d420, 0xc002b4a000, 0x2d26860, 0xc000e14d00, 0x0, 0x0, 0x0, 0x0)
    /home/circleci/project/project/terraform/eval.go:49 +0xc7
github.com/hashicorp/terraform/terraform.(*EvalSequence).Eval(0xc000c13160, 0x2d26860, 0xc000e14d00, 0x1, 0x1, 0x6, 0xc0004a4770)
    /home/circleci/project/project/terraform/eval_sequence.go:20 +0xfd
github.com/hashicorp/terraform/terraform.EvalRaw(0x2c7ce80, 0xc000c13160, 0x2d26860, 0xc000e14d00, 0x22b4bc0, 0x3fa2622, 0x2214980, 0xc000a8c780)
    /home/circleci/project/project/terraform/eval.go:49 +0xc7
github.com/hashicorp/terraform/terraform.Eval(0x2c7ce80, 0xc000c13160, 0x2d26860, 0xc000e14d00, 0xc000c13160, 0x2c7ce80, 0xc000c13160, 0x0)
    /home/circleci/project/project/terraform/eval.go:35 +0x4d
github.com/hashicorp/terraform/terraform.(*Graph).walk.func1(0x2645300, 0xc00164bd10, 0x0, 0x0, 0x0)
    /home/circleci/project/project/terraform/graph.go:73 +0xc77
github.com/hashicorp/terraform/dag.(*Walker).walkVertex(0xc0004a4180, 0x2645300, 0xc00164bd10, 0xc00123e540)
    /home/circleci/project/project/dag/walk.go:387 +0x357
created by github.com/hashicorp/terraform/dag.(*Walker).Update
    /home/circleci/project/project/dag/walk.go:309 +0x11d7

Crash Output

No access, was on Azure DevOps

Expected Behavior

Plan works

Actual Behavior

Plan crashes

Steps to Reproduce

1. terraform init
2. terraform plan

Additional Context

Not the first plan

[sdebruyn]

This does not crash with Terraform 0.13.0

[nexxai]

Was resolved in https://github.com/hashicorp/terraform/pull/26028 and will be fixed in v0.13.2

[alisdair]

Closing as a duplicate of #26011, which as @nexxai points out will be fixed by the next release. There are some possible workarounds reported by other users in the linked issue. Thanks for reporting!

[hashibot[bot]]

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