Flaky scanner test panics

[gz-c]

https://travis-ci.org/skycoin/teller/builds/339379493

panic: send on closed channel

goroutine 24 [running]:
github.com/skycoin/teller/src/scanner.(*BaseScanner).processDeposit(0xc42025c5a0, 0x87e3a4, 0x3, 0xc4211303c0, 0x22, 0x2eebb80, 0x396c6, 0xc420d21180, 0x40, 0x0, ...)
	github.com/skycoin/teller/src/scanner/_test/_obj_test/base_scanner.go:119 +0x363
github.com/skycoin/teller/src/scanner.(*BaseScanner).Run.func3(0xc4210f12d0, 0xc4202300a0, 0xc42025c5a0)
	github.com/skycoin/teller/src/scanner/_test/_obj_test/base_scanner.go:364 +0x287
created by github.com/skycoin/teller/src/scanner.(*BaseScanner).Run
	github.com/skycoin/teller/src/scanner/_test/_obj_test/base_scanner.go:352 +0x82c
FAIL	github.com/skycoin/teller/src/scanner	6.841s
make: *** [test] Error 1

[stgleb]

Cannot reproduce, looks like tests are fixed on CI

[gz-c]

That's why its flaky, only happens rarely

[therealssj]

#229
fixed in this?

[gz-c]

not sure. if it was related to the race condition with the logger, then possibly. the other race conditions were in the tests themselves