diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b52fe1c4c..4ca6c1c35 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.43.1
+          toolchain: 1.45.0
           override: true
       - run: rustup component add rustfmt
       - uses: actions-rs/cargo@v1
@@ -32,7 +32,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions-rs/toolchain@v1
         with:
-            toolchain: 1.43.1
+            toolchain: 1.45.0
             components: clippy
             override: true
       - uses: actions-rs/clippy-check@v1
@@ -46,7 +46,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        rust: [nightly, 1.43.1]
+        rust: [nightly, 1.45.0]
 
     steps:
     - uses: actions/checkout@master
diff --git a/ci_scripts/docker-coredeps/deps/build_rust.sh b/ci_scripts/docker-coredeps/deps/build_rust.sh
index 72d3e599d..962737e1c 100755
--- a/ci_scripts/docker-coredeps/deps/build_rust.sh
+++ b/ci_scripts/docker-coredeps/deps/build_rust.sh
@@ -3,9 +3,9 @@
 set -e -x
 
 # Install Rust
-curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.43.1-x86_64-unknown-linux-gnu -y
+curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.45.0-x86_64-unknown-linux-gnu -y
 export PATH=/root/.cargo/bin:$PATH
 rustc --version
 
 # remove some 300-400 MB that we don't need for automated builds
-rm -rf /root/.rustup/toolchains/1.43.1-x86_64-unknown-linux-gnu/share
+rm -rf /root/.rustup/toolchains/1.45.0-x86_64-unknown-linux-gnu/share
diff --git a/rust-toolchain b/rust-toolchain
index 3987c4729..50aceaa7b 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.43.1
+1.45.0
diff --git a/src/lib.rs b/src/lib.rs
index dd968c2aa..db5e598fa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,7 +5,7 @@
     clippy::all,
     clippy::indexing_slicing
 )]
-#![allow(clippy::match_bool)]
+#![allow(clippy::match_bool, clippy::eval_order_dependence)]
 
 #[macro_use]
 extern crate num_derive;
diff --git a/src/simplify.rs b/src/simplify.rs
index f2b4f0cc0..98c66a74e 100644
--- a/src/simplify.rs
+++ b/src/simplify.rs
@@ -6,10 +6,9 @@
 // this escapes a bit more than actually needed by delta (eg. also lines as "-- footer"),
 // but for non-delta-compatibility, that seems to be better.
 // (to be only compatible with delta, only "[\r\n|\n]-- {0,2}[\r\n|\n]" needs to be replaced)
-#[allow(clippy::indexing_slicing)]
 pub fn escape_message_footer_marks(text: &str) -> String {
-    if text.starts_with("--") {
-        "-\u{200B}-".to_string() + &text[2..].replace("\n--", "\n-\u{200B}-")
+    if let Some(text) = text.strip_prefix("--") {
+        "-\u{200B}-".to_string() + &text.replace("\n--", "\n-\u{200B}-")
     } else {
         text.replace("\n--", "\n-\u{200B}-")
     }
diff --git a/src/sql.rs b/src/sql.rs
index 5cc708bd5..3af1df87f 100644
--- a/src/sql.rs
+++ b/src/sql.rs
@@ -601,13 +601,10 @@ fn is_file_in_use(files_in_use: &HashSet<String>, namespc_opt: Option<&str>, nam
     files_in_use.contains(name_to_check)
 }
 
-#[allow(clippy::indexing_slicing)] // TODO: use str.strip_prefix once it is released in stable
 fn maybe_add_file(files_in_use: &mut HashSet<String>, file: impl AsRef<str>) {
-    if !file.as_ref().starts_with("$BLOBDIR/") {
-        return;
+    if let Some(file) = file.as_ref().strip_prefix("$BLOBDIR/") {
+        files_in_use.insert(file.to_string());
     }
-
-    files_in_use.insert(file.as_ref()[9..].into());
 }
 
 async fn maybe_add_from_param(