### Terraform Version ```shell v1.6.0-beta1 ``` ### Terraform Configuration Files ```terraform terraform { backend "s3" { bucket = "jb-test" key = "path/to/statefiles" region = "us-east-1" } } ``` ### Debug Output https://github.com/hashicorp/terraform/pull/31276#issuecomment-1703530574 ### Expected Behavior The `assume_role_with_web_identity` block should respect the corresponding AWS environment variables. ### Actual Behavior Role assumption flow fails. ### Steps to Reproduce 1. Set the `AWS_ROLE_ARN` and `AWS_WEB_IDENTITY_TOKEN_FILE` environment variables. 2. `terraform init` 3. Observe failure ### Additional Context Originally reported in this comment: https://github.com/hashicorp/terraform/pull/31276#issuecomment-1703530574 ### References Relates #31276 Relates #33730