fix docker

Dockerfile

@@ -8,6 +8,8 @@ RUN apk add --no-cache \
     clang \
     perl
 WORKDIR /build
+
+ENV RUSTFLAGS="-C target-feature=-crt-static"
 COPY Cargo.toml Cargo.lock rust-toolchain.toml build.rs ./
 COPY src ./src
 COPY web ./web