Try #255:

bors[bot] · bors[bot] · commit e3519e940574 · 2019-01-26T00:27:19.000Z
diff --git a/docker/armv7-unknown-linux-musleabihf/Dockerfile b/docker/armv7-unknown-linux-musleabihf/Dockerfile
@@ -27,7 +27,6 @@ COPY musl.sh /
 RUN bash /musl.sh \
     TARGET=arm-linux-musleabihf \
     "COMMON_CONFIG += --with-arch=armv7-a \
-                      --with-fpu=neon \
                       --with-float=hard \
                       --with-mode=thumb"
 
