Change codecov to show backtrace to find error

Author: Johanna

.github/configs/grcov.yml

@@ -6,4 +6,4 @@ output-type: lcov
 output-path: ./lcov.info
 excl-line: "#\\[cfg\\(test\\)\\]"
 excl-start: "mod tests \\{"
-excl-stop: "\\}"
+excl-stop: "\\}"git

.github/workflows/codecov.yml

@@ -27,6 +27,7 @@ jobs:
         CARGO_INCREMENTAL: '0'
         RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
         RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+        RUST_BACKTRACE: 'full'
     - name: rust-grcov
       uses: xnuter/grcov@master
       with: