ci: use -Cinstrument-coverage instead of -Zprofile

Support for -Zprofile has been removed: rust-lang/rust#131829

Author: cakebaker

.github/workflows/ci.yml

@@ -103,11 +103,17 @@ jobs:
       - name: Checkout source code
         uses: actions/checkout@v4
 
+      - name: Initialize workflow
+        shell: bash
+        run: |
+          mkdir -p target/debug/coverage
+
       - name: Install `rust` toolchain
         run: |
           ## Install `rust` toolchain
           rustup toolchain install nightly --no-self-update -c rustfmt --profile minimal
           rustup default nightly
+          rustup component add llvm-tools-preview
 
       - name: "`grcov` ~ install"
         run: cargo install grcov
@@ -117,13 +123,15 @@ jobs:
           cargo test --all --no-fail-fast ${{ matrix.cargo_flags }}
         env:
           CARGO_INCREMENTAL: "0"
-          RUSTFLAGS: "-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort -Cdebug-assertions=off"
-          RUSTDOCFLAGS: "-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort -Cdebug-assertions=off"
+          RUSTFLAGS: "-Cinstrument-coverage -Zcoverage-options=branch -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort -Cdebug-assertions=off"
+          RUSTDOCFLAGS: "-Cinstrument-coverage -Zcoverage-options=branch -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort -Cdebug-assertions=off"
+          LLVM_PROFILE_FILE: "target/debug/coverage/find-%p-%m.profraw"
 
       - name: Generate coverage data
         id: grcov
         run: |
           grcov target/debug/ \
+              --binary-path=target/debug/ \
               --branch \
               --llvm \
               --source-dir . \