nil pointer dereference

[derrick-dacosta]

Detailed Description

All redfish API scrape responses that result in an error should be handled properly. On some rare occasions this is not happening and it results in a nil pointer dereference.

Expected Behavior

application shouldn't try to dereference a nil pointer.

Current Behavior

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x8ff2aa]

goroutine 1168751194 [running]:
[[github.com/comcast/fishymetrics/common.BuildRequest](http://github.com/comcast/fishymetrics/common.BuildRequest)](http://github.com/comcast/fishymetrics/common.BuildRequest)({0xc003e29080, 0x296}, {0xc006e00ffd?, 0xc024936070?})
/go/src/github.com/comcast/fishymetrics/common/util.go:130 +0x10a
[[github.com/comcast/fishymetrics/exporter.NewExporter.Fetch.func8()](http://github.com/comcast/fishymetrics/exporter.NewExporter.Fetch.func8())](http://github.com/comcast/fishymetrics/exporter.NewExporter.Fetch.func8())
/go/src/github.com/comcast/fishymetrics/common/util.go:48 +0xe8
[[github.com/comcast/fishymetrics/pool.(*Task](http://github.com/comcast/fishymetrics/pool.(*Task)](http://github.com/comcast/fishymetrics/pool.(*Task)).Run(0xc00dadbe60, 0xc00fc918a8)
/go/src/github.com/comcast/fishymetrics/pool/task.go:69 +0x22
[[github.com/comcast/fishymetrics/pool.(*Pool](http://github.com/comcast/fishymetrics/pool.(*Pool)](http://github.com/comcast/fishymetrics/pool.(*Pool)).work(...)
/go/src/github.com/comcast/fishymetrics/pool/pool.go:86
created by [[github.com/comcast/fishymetrics/pool.(*Pool](http://github.com/comcast/fishymetrics/pool.(*Pool)](http://github.com/comcast/fishymetrics/pool.(*Pool)).Run in goroutine 1168751192
/go/src/github.com/comcast/fishymetrics/pool/pool.go:65 +0x25

Steps to Reproduce

Possible Implementation