Bump protobuf-codegen to 3.7.2 in Cargo.toml (#313)

Also bumps the MSRV for simplicity, because we won't
be testing things with older versions of Rust in CI.

Author: BenjaminBrienen

.tool-versions

@@ -2,5 +2,5 @@ golang     1.22.0
 nodejs     16.20.2
 shellcheck 0.7.1
 yarn       1.22.22
-rust       1.78.0
+rust       1.81.0
 python     3.11.9

CHANGELOG.md

@@ -2,7 +2,12 @@
 
 ## Unreleased
 
-- Bumped MSRV to Rust 1.78.0.
+Rust SCIP bindings:
+
+- Bumped MSRV to Rust 1.81.0 (https://github.com/sourcegraph/scip/pull/316, https://github.com/sourcegraph/scip/pull/313).
+- Bumped the pinned version of the `protobuf` crate to
+  the latest release v3.7.2.
+  (https://github.com/sourcegraph/scip/pull/313)
 
 ## v0.5.2
 

bindings/rust/Cargo.lock

@@ -9,17 +9,16 @@ SCIP (pronunciation: "skip") is a language-agnostic protocol for indexing source
 repository = "https://github.com/sourcegraph/scip"
 readme = "../../README.md"
 
-# We need >= 1.78.0 because: we only test against that
+# We need >= 1.81.0 because: we only test against that
 # in the CI (we use protobuf-codegen in CI, and that
-# has Cargo.lock version 4, which requires Rust >= 1.78.0).
-# https://github.com/solana-foundation/anchor/issues/3392#issuecomment-2508412018
-rust-version = "1.78.0"
+# has [email protected] as a dependency, which requires Rust >= 1.81.0).
+rust-version = "1.81.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 # Keep in sync with dev/proto-generate.sh
-protobuf = "=3.7.1"
+protobuf = "=3.7.2"
 
 [dev-dependencies]
 pretty_assertions = "1.2.1"

bindings/rust/Cargo.toml

@@ -14,7 +14,7 @@ include = [
   "src/*",
 ]
 
-rust-version = "1.78.0"
+rust-version = "1.81.0"
 
 [lib]
 path = "bindings/rust/lib.rs"

bindings/rust/src/generated/scip.rs

@@ -12,7 +12,7 @@ PROTOC_GEN_RUST_VERSION="$(cat bindings/rust/Cargo.toml | grep 'protobuf =' | se
 if ! grep -q "$PROTOC_GEN_RUST_VERSION" "./.bin/PROTOC_GEN_RUST_VERSION" \
    || ! test -f "./.bin/bin/protoc-gen-rs"; then
   rm -rf .bin
-  cargo install --root .bin protobuf-codegen --version 3.7.1 --locked
+  cargo install --root .bin protobuf-codegen --version 3.7.2 --locked
   echo "$PROTOC_GEN_RUST_VERSION" > "./.bin/PROTOC_GEN_RUST_VERSION"
 fi
 
@@ -36,4 +36,3 @@ GOBIN="$PWD/.bin" go install google.golang.org/protobuf/cmd/protoc-gen-go
 GOBIN="$PWD/.bin" ./.bin/buf generate
 ./.bin/goimports -w ./bindings/go/scip/scip.pb.go
 yarn run prettier
-