anchor.diff: -FROM node:10-alpine3.11
  +FROM node:10-alpine3.12
   
   RUN apk add --no-cache \
   		ca-certificates
  
positive.code: # - docker run --rm debian:stretch grep '^hosts:' /etc/nsswitch.conf
  RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
  
  ENV GOLANG_VERSION 1.14.2
  
  RUN set -eux; \
  	apk add --no-cache --virtual .build-deps \
  
negative.code: 	esac; \
  	\
  	wget -O go.tgz "https://golang.org/dl/go$GOLANG_VERSION.src.tar.gz"; \
  	echo '73fc9d781815d411928eccb92bf20d5b4264797be69410eac854babe44c94c09 *go.tgz' | sha256sum -c -; \
  	tar -C /usr/local -xzf go.tgz; \
  	rm go.tgz; \
  	\
  