arduino-cli lib update-index
 0 / ? [-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------=] 0.00%panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x123d4]
goroutine 18 [running]:
sync/atomic.addUint64(0x1336bed4, 0x1000, 0x0, 0x1000, 0x1000)
 /home/jenkins/go1.10.2-patched/src/sync/atomic/64bit_arm.go:31 +0x4c
github.com/arduino/arduino-cli/vendor/go.bug.st/downloader.(*Downloader).AsyncRun(0x1336bec0)
 /home/jenkins/workspace/arduino-cli/src/github.com/arduino/arduino-cli/vendor/go.bug.st/downloader/downloader.go:82 +0x17c
created by github.com/arduino/arduino-cli/vendor/go.bug.st/downloader.(*Downloader).RunAndPoll
 /home/jenkins/workspace/arduino-cli/src/github.com/arduino/arduino-cli/vendor/go.bug.st/downloader/downloader.go:61 +0x70

wjw@weatherrack3:~ $ **arduino-cli core update-index**
 0 / 233181 [---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------] 0.00%panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x123d4]
goroutine 18 [running]:
sync/atomic.addUint64(0x12977184, 0xe78, 0x0, 0x1000, 0xe78)
 /home/jenkins/go1.10.2-patched/src/sync/atomic/64bit_arm.go:31 +0x4c
github.com/arduino/arduino-cli/vendor/go.bug.st/downloader.(*Downloader).AsyncRun(0x12977170)
 /home/jenkins/workspace/arduino-cli/src/github.com/arduino/arduino-cli/vendor/go.bug.st/downloader/downloader.go:82 +0x17c
created by github.com/arduino/arduino-cli/vendor/go.bug.st/downloader.(*Downloader).RunAndPoll
 /home/jenkins/workspace/arduino-cli/src/github.com/arduino/arduino-cli/vendor/go.bug.st/downloader/downloader.go:61 +0x70