update run chain to use math; clean up extra copy of execute_chain.sh

3 jobs for master in 15 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
failed #43318
build

00:00:15

 
  Test
skipped #43320
allowed to fail
code_quality
skipped #43319
test
 
Name Stage Failure
failed
build Build There is an unknown failure, please try again
Checking out 66d8e05a as master...
Skipping Git submodules setup
$ # Auto DevOps variables and functions # collapsed multi-line command
$ setup_docker
$ build
Logging to GitLab Container Registry with CI credentials...
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
Error response from daemon: Get https://registry-1.docker.io/v2/: unauthorized: incorrect username or password
ERROR: Job failed: exit code 1