realtime_channel_spec_integration_test.go:787: panic: runtime error: invalid memory address or nil pointer dereference [recovered] panic: runtime error: invalid memory address or nil pointer dereference /opt/hostedtoolcache/go/1.17.8/x64/src/testing/testing.go:1209 +0x36c /opt/hostedtoolcache/go/1.17.8/x64/src/testing/testing.go:1212 +0x3b6 /opt/hostedtoolcache/go/1.17.8/x64/src/runtime/panic.go:1047 +0x266 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:189 +0x46 /home/runner/work/ably-go/ably-go/ably/ably_test.go:49 +0x2af /opt/hostedtoolcache/go/1.17.8/x64/src/runtime/panic.go:1047 +0x266 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:214 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:218 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:228 +0x6b /home/runner/work/ably-go/ably-go/ably/realtime_channel_spec_integration_test.go:791 +0x185 /opt/hostedtoolcache/go/1.17.8/x64/src/testing/testing.go:1259 +0x230 /opt/hostedtoolcache/go/1.17.8/x64/src/testing/testing.go:1306 +0x727