stack trace

gistfile1.txt

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x606edc]
goroutine 27 [running]:
github.com/awslabs/aws-sdk-go/aws.func·002()
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/credentials.go:252 +0x5c
github.com/awslabs/aws-sdk-go/aws.(*iamProvider).Credentials(0xc20822e320, 0x0, 0x7f84591a9980, 0xc2081c7d80)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/credentials.go:265 +0x9af
github.com/awslabs/aws-sdk-go/aws.(*DefaultCredentialsProvider).Credentials(0xa53948, 0xc2081c79d0, 0x0, 0x0)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/credentials.go:60 +0x1e2
github.com/awslabs/aws-sdk-go/internal/signer/v4.Sign(0xc208040680)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/internal/signer/v4/v4.go:61 +0x59
github.com/awslabs/aws-sdk-go/aws.(*HandlerList).Run(0xc2080406b8, 0xc208040680)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/handlers.go:80 +0x6e
github.com/awslabs/aws-sdk-go/aws.(*Request).Sign(0xc208040680, 0x0, 0x0)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/request.go:120 +0x85
github.com/awslabs/aws-sdk-go/aws.(*Request).Send(0xc208040680, 0x0, 0x0)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/aws/request.go:125 +0x3a
github.com/awslabs/aws-sdk-go/service/dynamodb.(*DynamoDB).Scan(0xc208042150, 0xc208039560, 0xc20804b280, 0x0, 0x0)
/build/tmp-build/confd-branch-dynamodb/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/service/dynamodb/api.go:602 +0x5c
github.com/kelseyhightower/confd/backends/dynamodb.(*Client).GetValues(0xc2081a3960, 0xc20822de20, 0x2, 0x2, 0x2, 0x0, 0x0)
/build/tmp-build/gobuild/src/github.com/kelseyhightower/confd/backends/dynamodb/client.go:76 +0x979