diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index ab07b5cc..3eba341f 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -27,10 +27,11 @@ jobs:
           cargo test --all -- --test-threads=1
         env:
           CARGO_INCREMENTAL: 0
-          RUSTFLAGS: "-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests"
+          RUSTFLAGS: "-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests"
 
       - name: Setup grcov
-        uses: actions-rs/grcov@v0.1
+        run: |
+          cargo install grcov
 
       - name: Run grcov
         run: |
diff --git a/Cargo.lock b/Cargo.lock
index 946f0b15..78f5e42d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -569,7 +569,7 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "mirai"
-version = "1.1.7"
+version = "1.1.8"
 dependencies = [
  "bincode",
  "cargo_metadata",
diff --git a/binaries/summary_store.tar b/binaries/summary_store.tar
index e9d26319..b60283e3 100644
Binary files a/binaries/summary_store.tar and b/binaries/summary_store.tar differ
diff --git a/checker/Cargo.toml b/checker/Cargo.toml
index 85a4ae1c..02137195 100644
--- a/checker/Cargo.toml
+++ b/checker/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "mirai"
-version = "1.1.7"
+version = "1.1.8"
 authors = ["Herman Venter <herman_venter@msn.com>"]
 description = "A static analysis tool for Rust, based on Abstract Interpretation of MIR"
 repository = "https://github.com/facebookexperimental/MIRAI"
diff --git a/checker/tests/call_graph/fnptr_fold.rs b/checker/tests/call_graph/fnptr_fold.rs
index 928839e8..67304dae 100644
--- a/checker/tests/call_graph/fnptr_fold.rs
+++ b/checker/tests/call_graph/fnptr_fold.rs
@@ -68,10 +68,10 @@ commit;
 /* EXPECTED:CALL_SITES{
   "files": [
     "tests/call_graph/fnptr_fold.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/std/src/io/stdio.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/fmt/mod.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/slice/mod.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/ptr/metadata.rs"
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/std/src/io/stdio.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/fmt/mod.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/slice/mod.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/ptr/metadata.rs"
   ],
   "callables": [
     {
diff --git a/checker/tests/call_graph/static_fold.rs b/checker/tests/call_graph/static_fold.rs
index b5f860ac..544535b1 100644
--- a/checker/tests/call_graph/static_fold.rs
+++ b/checker/tests/call_graph/static_fold.rs
@@ -64,10 +64,10 @@ commit;
 /* EXPECTED:CALL_SITES{
   "files": [
     "tests/call_graph/static_fold.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/std/src/io/stdio.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/fmt/mod.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/slice/mod.rs",
-    "/rustc/c4190f2d3a46a59f435f7b42f58bc22b2f4d6917/library/core/src/ptr/metadata.rs"
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/std/src/io/stdio.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/fmt/mod.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/slice/mod.rs",
+    "/rustc/2f2c438dce75d8cc532c3baa849eeddc0901802c/library/core/src/ptr/metadata.rs"
   ],
   "callables": [
     {
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 528260a4..16570262 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-05-08"
+channel = "nightly-2023-05-09"
 components = [ "clippy", "rustfmt", "rustc-dev", "rust-src", "rust-std", "llvm-tools-preview" ]