realtime_channel_spec_integration_test.go:481: panic: runtime error: invalid memory address or nil pointer dereference [recovered] panic: runtime error: invalid memory address or nil pointer dereference /opt/hostedtoolcache/go/1.18.8/x64/src/testing/testing.go:1389 +0x366 /opt/hostedtoolcache/go/1.18.8/x64/src/testing/testing.go:1392 +0x5d2 /opt/hostedtoolcache/go/1.18.8/x64/src/runtime/panic.go:844 +0x258 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:191 +0x73 /home/runner/work/ably-go/ably-go/ably/ably_test.go:49 +0x2a6 /opt/hostedtoolcache/go/1.18.8/x64/src/runtime/panic.go:844 +0x258 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:216 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:220 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:230 +0x6b /home/runner/work/ably-go/ably-go/ably/realtime_channel_spec_integration_test.go:485 +0x19e /opt/hostedtoolcache/go/1.18.8/x64/src/testing/testing.go:1439 +0x214 /opt/hostedtoolcache/go/1.18.8/x64/src/testing/testing.go:1486 +0x725