Change version number to 1.6.0

2 jobs for master in 7 minutes and 27 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #2363
test

00:07:27

 
  Build
skipped #2364
build
 
Name Stage Failure
failed
test Test

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warning: build failed, waiting for other jobs to finish...
error: aborting due to 20 previous errors

error: build failed
make: *** [Makefile:23: clippy] Error 101
Cleaning up file based variables
ERROR: Job failed: exit code 1