Test MSRV on Linux x86_64 (cranelift, cranelift-entity, cranelift-control, cranelift-isle, cranelift-reader, cranelift-native, cranelift-filetests, veri_engine, wasmtime-bench-api, wasmtime-cache, wasmtime-wit-bindgen, wasmtime-cranelift, wasmtime-fiber, wasmtime-winch, wiggle, wiggle-test, wasmtime-wasi-nn, wasmtime-c-api-macros, test-programs, verify-component-adapter, example-tokio-wasm, embedding, cranelift-fuzzgen, wasm-spec-interpreter, wasmtime-wasi-http, wasmtime-wasi-threads)