Update MSRV to 1.93.0

Accompanying today's release of Rust 1.95

Author: alexcrichton

.github/actions/install-rust/action.yml

@@ -32,7 +32,7 @@ runs:
         elif [ "${{ inputs.toolchain }}" = "msrv" ]; then
           echo "version=1.$msrv.0" >> "$GITHUB_OUTPUT"
         elif [ "${{ inputs.toolchain }}" = "wasmtime-ci-pinned-nightly" ]; then
-          echo "version=nightly-2026-04-10" >> "$GITHUB_OUTPUT"
+          echo "version=nightly-2026-04-16" >> "$GITHUB_OUTPUT"
         elif [ "${{ inputs.toolchain }}" = "wasmtime-ci-oss-fuzz-pin" ]; then
           # Do not change this number unless OSS-Fuzz has updated. If you update
           # this version and do not update OSS-Fuzz then you will break our

Cargo.toml

@@ -195,7 +195,7 @@ authors = ["The Wasmtime Project Developers"]
 edition = "2024"
 # Wasmtime's current policy is that this number can be no larger than the
 # current stable release of Rust minus 2.
-rust-version = "1.92.0"
+rust-version = "1.93.0"
 
 [workspace.lints.rust]
 # Turn on some lints which are otherwise allow-by-default in rustc.