See if payload can be downloaded

Test if some commands indeed work

More tests

Try sudo

Try chroot only

Work around some build issues

More feedback from Travis' builds

Run linter in the chroot

Don't copy the disk image

Fix rsyncs

Show progress to keep travis active

Add GOPATH in env

First attempt at downloading packages

Download root image

Fix GOROOT

Install instead of linting

Also run tests

Bind /proc and /sys for the tests to work

.travis.yml

@@ -1,6 +1,6 @@
 language: go
 go_import_path: github.com/ethereum/go-ethereum
-sudo: false
+sudo: true
 jobs:
   include:
         # This builder only tests code linters on latest version of Go
@@ -15,6 +15,24 @@ jobs:
       script:
         - go run build/ci.go lint
 
+    - stage: build
+      os: linux
+      dist: bionic
+      before_install:
+      - sudo apt install -y qemu-user-static xz-utils # qemu-system qemu-efi debootstrap
+      script:
+      - mkdir -p chrootdir
+      - wget https://github.com/gballet/ubuntu-18.4-go-rootfs/releases/download/ubuntu1804-go113/rootfs_v1.txz
+      - sudo tar xfJ rootfs_v1.txz -C chrootdir
+      - rm rootfs_v1.txz
+      - sudo cp `which qemu-aarch64-static` chrootdir/usr/bin
+      - sudo mkdir -p chrootdir/${TRAVIS_BUILD_DIR}
+      - sudo rsync -a --exclude 'chrootdir' ${TRAVIS_BUILD_DIR}/ chrootdir/${TRAVIS_BUILD_DIR}/
+      - sudo mount --bind /proc chrootdir/proc
+      - sudo mount --bind /sys chrootdir/sys
+      - sudo chroot chrootdir qemu-aarch64-static /bin/bash -c "export GOROOT=/usr/local/go; export PATH=\$PATH:\$GOROOT/bin; cd ${TRAVIS_BUILD_DIR} && go run build/ci.go install"
+      - sudo chroot chrootdir qemu-aarch64-static /bin/bash -c "export GOROOT=/usr/local/go; export PATH=\$PATH:\$GOROOT/bin; cd ${TRAVIS_BUILD_DIR} && go run build/ci.go test"
+
     - stage: build
       os: linux
       dist: xenial