tests: add basic build progress test

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

vendor/github.com/creack/pty/Dockerfile.riscv

@@ -0,0 +1,23 @@
+# NOTE: Using 1.13 as a base to build the RISCV compiler, the resulting version is based on go1.6.
+FROM golang:1.13
+
+# Clone and complie a riscv compatible version of the go compiler.
+RUN git clone https://review.gerrithub.io/riscv/riscv-go /riscv-go
+# riscvdev branch HEAD as of 2019-06-29.
+RUN cd /riscv-go && git checkout 04885fddd096d09d4450726064d06dd107e374bf
+ENV PATH=/riscv-go/misc/riscv:/riscv-go/bin:$PATH
+RUN cd /riscv-go/src && GOROOT_BOOTSTRAP=$(go env GOROOT) ./make.bash
+ENV GOROOT=/riscv-go
+
+# Set the base env.
+ENV GOOS=linux GOARCH=riscv CGO_ENABLED=0 GOFLAGS='-v -ldflags=-s -ldflags=-w'
+
+# Pre compile the stdlib.
+RUN go build -a std
+
+# Add the code to the image.
+WORKDIR pty
+ADD . .
+
+# Build the lib.
+RUN go build