Fix coverage reports of incorrectly inlined functions (#393)

* Fix coverage reports of incorrectly inlined functions

* [ci] fix -Cpanic=abort flag

* [ci] remove -Zpanic_abort_tests and -Cpanic=abort flags again

They seemed to cause trouble for the coverage reporting system.
16 jobs for master in 9 minutes and 42 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Check
passed #510000
linux-docker
check-std

00:01:37

passed #510001
linux-docker
check-wasm

00:01:46

 
  Workspace
passed #510002
linux-docker
build-std

00:02:21

passed #510003
linux-docker
build-wasm

00:02:22

passed #510006
linux-docker
clippy-std

00:01:29

passed #510007
linux-docker
clippy-wasm

00:01:35

passed #510005
linux-docker
codecov

00:03:51

passed #510008
linux-docker
fmt

00:00:30

passed #510004
linux-docker
test

00:02:49

 
  Examples
passed #510011
linux-docker
examples-clippy-std

00:01:16

passed #510012
linux-docker
examples-clippy-wasm

00:01:07

passed #510013
linux-docker
examples-contract-build

00:01:25

passed #510010
linux-docker
examples-fmt

00:00:13

passed #510014
linux-docker
examples-generate-metadata

00:02:45

passed #510009
linux-docker
examples-test

00:01:26

 
  Publish
passed #510015
linux-docker
publish-docs

00:01:26