Command: 'set -o pipefail; curl -L --fail --retry 5 --retry-delay 1 --connect-timeout 3 --max-time 30 https://s3-external-1.amazonaws.com/heroku-buildpack-ruby/heroku-16/ruby-2.6.0-preview1.tgz -s -o - | tar zxf - ' failed on attempt 1 of 3.
あれれれれ？
Command: 'set -o pipefail; curl -L --fail --retry 5 --retry-delay 1 --connect-timeout 3 --max-time 30 https://s3-external-1.amazonaws.com/heroku-buildpack-ruby/heroku-16/ruby-2.6.0-preview1.tgz -s -o - | tar zxf - ' failed on attempt 1 of 3.
あれれれれ？