### Terraform Version ```shell Terraform v1.10.4 on linux_amd64 ``` ### Terraform Configuration Files ``` > cat ~/.terraformrc plugin_cache_dir = "$HOME/.terraform.d/plugin-cache" ``` ### Debug Output ``` # running in empty directory > echo 'element([1,2,3], -1)' | TF_LOG=trace terraform console -no-color 2025-01-21T00:34:03.385+0200 [INFO] Terraform version: 1.10.4 2025-01-21T00:34:03.385+0200 [DEBUG] using github.com/hashicorp/go-tfe v1.70.0 2025-01-21T00:34:03.385+0200 [DEBUG] using github.com/hashicorp/hcl/v2 v2.23.0 2025-01-21T00:34:03.385+0200 [DEBUG] using github.com/hashicorp/terraform-svchost v0.1.1 2025-01-21T00:34:03.385+0200 [DEBUG] using github.com/zclconf/go-cty v1.16.0 2025-01-21T00:34:03.385+0200 [INFO] Go runtime version: go1.23.3 2025-01-21T00:34:03.385+0200 [INFO] CLI args: []string{"terraform", "console", "-no-color"} 2025-01-21T00:34:03.385+0200 [TRACE] Stdout is not a terminal 2025-01-21T00:34:03.385+0200 [TRACE] Stderr is not a terminal 2025-01-21T00:34:03.385+0200 [TRACE] Stdin is not a terminal 2025-01-21T00:34:03.385+0200 [DEBUG] Attempting to open CLI config file: /home/georgii/.terraformrc 2025-01-21T00:34:03.385+0200 [INFO] Loading CLI configuration from /home/georgii/.terraformrc 2025-01-21T00:34:03.385+0200 [INFO] Loading CLI configuration from /home/georgii/.terraform.d/credentials.tfrc.json 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory terraform.d/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /home/georgii/.terraform.d/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /home/georgii/.local/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /home/linuxbrew/.linuxbrew/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /usr/share/mate/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /usr/share/gnome/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /home/georgii/.local/share/flatpak/exports/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /var/lib/flatpak/exports/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /usr/local/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /usr/share/terraform/plugins 2025-01-21T00:34:03.386+0200 [DEBUG] ignoring non-existing provider search directory /var/lib/snapd/desktop/terraform/plugins 2025-01-21T00:34:03.386+0200 [INFO] CLI command args: []string{"console", "-no-color"} 2025-01-21T00:34:03.387+0200 [TRACE] Meta.Backend: no config given or present on disk, so returning nil config 2025-01-21T00:34:03.387+0200 [TRACE] Meta.Backend: backend has not previously been initialized in this working directory 2025-01-21T00:34:03.387+0200 [TRACE] Meta.Backend: using default local state only (no backend configuration, and no existing initialized backend) 2025-01-21T00:34:03.387+0200 [TRACE] Meta.Backend: instantiated backend of type 2025-01-21T00:34:03.387+0200 [DEBUG] checking for provisioner in "." 2025-01-21T00:34:03.387+0200 [DEBUG] checking for provisioner in "/home/georgii/.terraform.versions" 2025-01-21T00:34:03.387+0200 [TRACE] Meta.Backend: backend does not support operations, so wrapping it in a local backend 2025-01-21T00:34:03.387+0200 [TRACE] backend/local: CLI option -state is overriding state path to terraform.tfstate 2025-01-21T00:34:03.388+0200 [TRACE] backend/local: requesting state manager for workspace "default" 2025-01-21T00:34:03.388+0200 [TRACE] backend/local: state manager for workspace "default" will: - read initial snapshot from terraform.tfstate - write new snapshots to terraform.tfstate - create any backup at terraform.tfstate.backup 2025-01-21T00:34:03.388+0200 [TRACE] backend/local: requesting state lock for workspace "default" 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: preparing to manage state snapshots at terraform.tfstate 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: no previously-stored snapshot exists 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: locking terraform.tfstate using fcntl flock 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: writing lock metadata to .terraform.tfstate.lock.info 2025-01-21T00:34:03.388+0200 [TRACE] backend/local: reading remote state for workspace "default" 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: reading latest snapshot from terraform.tfstate 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: snapshot file has nil snapshot, but that's okay 2025-01-21T00:34:03.388+0200 [TRACE] statemgr.Filesystem: read nil snapshot 2025-01-21T00:34:03.388+0200 [TRACE] backend/local: populating backendrun.LocalRun for current working directory 2025-01-21T00:34:03.389+0200 [TRACE] terraform.NewContext: starting 2025-01-21T00:34:03.389+0200 [TRACE] terraform.NewContext: complete 2025-01-21T00:34:03.389+0200 [DEBUG] Building and walking 'eval' graph 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.ConfigTransformer 2025-01-21T00:34:03.389+0200 [TRACE] ConfigTransformer: Starting for path: 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.ConfigTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.RootVariableTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.RootVariableTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.ModuleVariableTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.ModuleVariableTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.variableValidationTransformer 2025-01-21T00:34:03.389+0200 [TRACE] variableValidationTransformer: adding validation nodes for any existing variable evaluation nodes 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.variableValidationTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.LocalTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.LocalTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.OutputTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.OutputTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.AttachResourceConfigTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.AttachResourceConfigTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.AttachStateTransformer 2025-01-21T00:34:03.389+0200 [DEBUG] Not attaching any node states: overall state is nil 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.AttachStateTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.graphTransformerMulti 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Executing graph transform *terraform.externalProviderTransformer 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Completed graph transform *terraform.externalProviderTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Executing graph transform *terraform.ProviderConfigTransformer 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Completed graph transform *terraform.ProviderConfigTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Executing graph transform *terraform.MissingProviderTransformer 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Completed graph transform *terraform.MissingProviderTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Executing graph transform *terraform.ProviderTransformer 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Completed graph transform *terraform.ProviderTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Executing graph transform *terraform.PruneProviderTransformer 2025-01-21T00:34:03.389+0200 [TRACE] (graphTransformerMulti) Completed graph transform *terraform.PruneProviderTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.graphTransformerMulti (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.AttachSchemaTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.AttachSchemaTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.ModuleExpansionTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.ModuleExpansionTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.ReferenceTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.ReferenceTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.CloseProviderTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.CloseProviderTransformer (no changes) 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.CloseRootModuleTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.CloseRootModuleTransformer with new graph: root - *terraform.nodeCloseModule ------ 2025-01-21T00:34:03.389+0200 [TRACE] Executing graph transform *terraform.TransitiveReductionTransformer 2025-01-21T00:34:03.389+0200 [TRACE] Completed graph transform *terraform.TransitiveReductionTransformer (no changes) 2025-01-21T00:34:03.389+0200 [DEBUG] Starting graph walk: walkEval 2025-01-21T00:34:03.389+0200 [TRACE] vertex "root": starting visit (*terraform.nodeCloseModule) 2025-01-21T00:34:03.389+0200 [TRACE] vertex "root": does not belong to any module instance 2025-01-21T00:34:03.389+0200 [TRACE] vertex "root": visit complete Error: Error in function call on line 1: (source code not available) Call to function "element" failed: panic in function implementation: runtime error: index out of range [-1] goroutine 1 [running]: runtime/debug.Stack() runtime/debug/stack.go:26 +0x5e github.com/zclconf/go-cty/cty/function.errorForPanic(...) github.com/zclconf/go-cty@v1.16.0/cty/function/error.go:44 github.com/zclconf/go-cty/cty/function.Function.returnTypeForValues.func1() github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:226 +0x7b panic({0x352be40?, 0xc0007d1428?}) runtime/panic.go:785 +0x132 github.com/zclconf/go-cty/cty/function/stdlib.init.func12({0xc0009f5ec0, 0xc0001959e8?, 0x3e20e58?}) github.com/zclconf/go-cty@v1.16.0/cty/function/stdlib/collection.go:173 +0x25f github.com/zclconf/go-cty/cty/function.Function.returnTypeForValues({0x0?}, {0xc0009f5ec0, 0x2, 0x0?}) github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:230 +0x778 github.com/zclconf/go-cty/cty/function.Function.Call({0x3e20e58?}, {0xc0009f5ec0, 0x2, 0x2}) github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:250 +0x7a github.com/hashicorp/hcl/v2/hclsyntax.(*FunctionCallExpr).Value(0xc0003ceb40, 0xc0009fa588) github.com/hashicorp/hcl/v2@v2.23.0/hclsyntax/expression.go:528 +0x1acf github.com/hashicorp/terraform/internal/lang.(*Scope).EvalExpr(0xc0007b6480, {0x3e217e8, 0xc0003ceb40}, {{0x3e218d8?, 0x5a431a0?}}) github.com/hashicorp/terraform/internal/lang/eval.go:179 +0x1a5 github.com/hashicorp/terraform/internal/repl.(*Session).handleEval(0xc00088f8e8, {0xc00088f6d8?, 0xc00088f6d8?}) github.com/hashicorp/terraform/internal/repl/session.go:58 +0x14e github.com/hashicorp/terraform/internal/repl.(*Session).Handle(0xc00088f8e8, {0xc00088f6d8, 0x14}) github.com/hashicorp/terraform/internal/repl/session.go:43 +0xbc github.com/hashicorp/terraform/internal/command.(*ConsoleCommand).modePiped(0xc000685a40, 0xc00088f8e8, {0x3e290f0, 0xc0009f0330}) github.com/hashicorp/terraform/internal/command/console.go:191 +0xee github.com/hashicorp/terraform/internal/command.(*ConsoleCommand).Run(0xc000685a40, {0xc00018a170?, 0x0?, 0x0?}) github.com/hashicorp/terraform/internal/command/console.go:181 +0x1073 github.com/hashicorp/cli.(*CLI).Run(0xc0009d2140) github.com/hashicorp/cli@v1.1.6/cli.go:265 +0x55f main.realMain() github.com/hashicorp/terraform/main.go:339 +0x1deb main.main() github.com/hashicorp/terraform/main.go:64 +0x13 . 2025-01-21T00:34:03.390+0200 [TRACE] statemgr.Filesystem: removing lock metadata file .terraform.tfstate.lock.info 2025-01-21T00:34:03.390+0200 [TRACE] statemgr.Filesystem: unlocking terraform.tfstate using fcntl flock ``` ### Expected Behavior As of [TF 1.10.0 release notes](https://github.com/hashicorp/terraform/blob/v1.10/CHANGELOG.md#1100-november-27-2024) and https://github.com/hashicorp/terraform/pull/35501 I'd expect `element()` function to accept negative indices and not fail. ### Actual Behavior ```shell > echo 'element([1,2,3], -1)' | terraform console -no-color Error: Error in function call on line 1: (source code not available) Call to function "element" failed: panic in function implementation: runtime error: index out of range [-1] goroutine 1 [running]: runtime/debug.Stack() runtime/debug/stack.go:26 +0x5e github.com/zclconf/go-cty/cty/function.errorForPanic(...) github.com/zclconf/go-cty@v1.16.0/cty/function/error.go:44 github.com/zclconf/go-cty/cty/function.Function.returnTypeForValues.func1() github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:226 +0x7b panic({0x352be40?, 0xc000c106a8?}) runtime/panic.go:785 +0x132 github.com/zclconf/go-cty/cty/function/stdlib.init.func12({0xc000a34780, 0xc000013bf8?, 0x3e20e58?}) github.com/zclconf/go-cty@v1.16.0/cty/function/stdlib/collection.go:173 +0x25f github.com/zclconf/go-cty/cty/function.Function.returnTypeForValues({0x0?}, {0xc000a34780, 0x2, 0x0?}) github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:230 +0x778 github.com/zclconf/go-cty/cty/function.Function.Call({0x3e20e58?}, {0xc000a34780, 0x2, 0x2}) github.com/zclconf/go-cty@v1.16.0/cty/function/function.go:250 +0x7a github.com/hashicorp/hcl/v2/hclsyntax.(*FunctionCallExpr).Value(0xc00089a5a0, 0xc000c09d10) github.com/hashicorp/hcl/v2@v2.23.0/hclsyntax/expression.go:528 +0x1acf github.com/hashicorp/terraform/internal/lang.(*Scope).EvalExpr(0xc0002c2ab0, {0x3e217e8, 0xc00089a5a0}, {{0x3e218d8?, 0x5a431a0?}}) github.com/hashicorp/terraform/internal/lang/eval.go:179 +0x1a5 github.com/hashicorp/terraform/internal/repl.(*Session).handleEval(0xc00081b8e8, {0xc00081b6d8?, 0xc00081b6d8?}) github.com/hashicorp/terraform/internal/repl/session.go:58 +0x14e github.com/hashicorp/terraform/internal/repl.(*Session).Handle(0xc00081b8e8, {0xc00081b6d8, 0x14}) github.com/hashicorp/terraform/internal/repl/session.go:43 +0xbc github.com/hashicorp/terraform/internal/command.(*ConsoleCommand).modePiped(0xc000584c40, 0xc00081b8e8, {0x3e290f0, 0xc000a0ee10}) github.com/hashicorp/terraform/internal/command/console.go:191 +0xee github.com/hashicorp/terraform/internal/command.(*ConsoleCommand).Run(0xc000584c40, {0xc0000721a0?, 0x0?, 0x0?}) github.com/hashicorp/terraform/internal/command/console.go:181 +0x1073 github.com/hashicorp/cli.(*CLI).Run(0xc000760280) github.com/hashicorp/cli@v1.1.6/cli.go:265 +0x55f main.realMain() github.com/hashicorp/terraform/main.go:339 +0x1deb main.main() github.com/hashicorp/terraform/main.go:64 +0x13 . ``` ### Steps to Reproduce `echo 'element([1,2,3], -1)' | terraform console` ### Additional Context _No response_ ### References - https://github.com/hashicorp/terraform/pull/35501 ### Generative AI / LLM assisted development? _No response_