Dec 03 15:49:06.560 INFO testing cn-stratum-0.4.0 against 1.30.1 for beta-1.31-5
Dec 03 15:49:06.560 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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"`
Dec 03 15:49:07.289 INFO [stdout] a54ff523c3181c48224f35db0ab89b73cb7ae706ca942280a661d2b48b07e422
Dec 03 15:49:07.291 INFO running `"docker" "start" "-a" "a54ff523c3181c48224f35db0ab89b73cb7ae706ca942280a661d2b48b07e422"`
Dec 03 15:49:08.311 INFO [stderr] usermod: no changes
Dec 03 15:49:08.472 INFO [stderr]    Compiling arrayvec v0.4.8
Dec 03 15:49:10.187 INFO [stderr]    Compiling cn-stratum v0.4.0 (/source)
Dec 03 15:49:10.227 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 03 15:49:10.227 INFO [stderr] 
Dec 03 15:49:10.229 INFO [stderr] error: Could not compile `cn-stratum`.
Dec 03 15:49:10.229 INFO [stderr] 
Dec 03 15:49:10.230 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:49:10.235 INFO [stderr] su: No module specific data is present
Dec 03 15:49:11.105 INFO running `"docker" "inspect" "a54ff523c3181c48224f35db0ab89b73cb7ae706ca942280a661d2b48b07e422"`
Dec 03 15:49:11.350 INFO running `"docker" "rm" "-f" "a54ff523c3181c48224f35db0ab89b73cb7ae706ca942280a661d2b48b07e422"`
Dec 03 15:49:11.596 INFO [stdout] a54ff523c3181c48224f35db0ab89b73cb7ae706ca942280a661d2b48b07e422