Nov 26 10:36:08.119 INFO testing tarpc-trace-0.1.0 against 1.30.1 for beta-1.31-4
Nov 26 10:36:08.120 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-4/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-4/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 26 10:36:08.798 INFO [stdout] ecf9838291404f6cbfdc215f3bb8288af01d80e14c4b851f17d7baa9cc59f089
Nov 26 10:36:08.800 INFO running `"docker" "start" "-a" "ecf9838291404f6cbfdc215f3bb8288af01d80e14c4b851f17d7baa9cc59f089"`
Nov 26 10:36:09.732 INFO [stderr] usermod: no changes
Nov 26 10:36:09.781 INFO [stderr]    Compiling tarpc-trace v0.1.0 (/source)
Nov 26 10:36:09.798 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Nov 26 10:36:09.798 INFO [stderr] 
Nov 26 10:36:09.810 INFO [stderr] error: Could not compile `tarpc-trace`.
Nov 26 10:36:09.811 INFO [stderr] 
Nov 26 10:36:09.811 INFO [stderr] To learn more, run the command again with --verbose.
Nov 26 10:36:09.812 INFO [stderr] su: No module specific data is present
Nov 26 10:36:10.169 INFO running `"docker" "inspect" "ecf9838291404f6cbfdc215f3bb8288af01d80e14c4b851f17d7baa9cc59f089"`
Nov 26 10:36:10.266 INFO running `"docker" "rm" "-f" "ecf9838291404f6cbfdc215f3bb8288af01d80e14c4b851f17d7baa9cc59f089"`
Nov 26 10:36:10.394 INFO [stdout] ecf9838291404f6cbfdc215f3bb8288af01d80e14c4b851f17d7baa9cc59f089