Dec 03 12:52:25.459 INFO testing eosio-0.2.0 against 1.30.1 for beta-1.31-5
Dec 03 12:52:25.459 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 12:52:25.630 INFO [stdout] b5b57cc41883b9237c23da9f02c414fb734cf4194817ee2cedbda7c917e4ae55
Dec 03 12:52:25.632 INFO running `"docker" "start" "-a" "b5b57cc41883b9237c23da9f02c414fb734cf4194817ee2cedbda7c917e4ae55"`
Dec 03 12:52:26.118 INFO [stderr] usermod: no changes
Dec 03 12:52:26.188 INFO [stderr]    Compiling eosio_sys v0.2.0
Dec 03 12:52:26.195 INFO [stderr]    Compiling syn v0.15.22
Dec 03 12:52:26.267 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 03 12:52:26.267 INFO [stderr] 
Dec 03 12:52:26.267 INFO [stderr] error: Could not compile `eosio_sys`.
Dec 03 12:52:26.267 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 12:52:42.839 INFO [stderr] error: build failed
Dec 03 12:52:42.839 INFO [stderr] su: No module specific data is present
Dec 03 12:52:43.294 INFO running `"docker" "inspect" "b5b57cc41883b9237c23da9f02c414fb734cf4194817ee2cedbda7c917e4ae55"`
Dec 03 12:52:43.389 INFO running `"docker" "rm" "-f" "b5b57cc41883b9237c23da9f02c414fb734cf4194817ee2cedbda7c917e4ae55"`
Dec 03 12:52:43.500 INFO [stdout] b5b57cc41883b9237c23da9f02c414fb734cf4194817ee2cedbda7c917e4ae55