Nov 24 19:25:56.355 INFO testing utkarshkukreti/draco against 1.30.1 for beta-1.31-4
Nov 24 19:25:56.357 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-4/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 24 19:25:56.804 INFO [stdout] dc509a8c44bb460bd00419efaf6d9a6dc4c3926fa86fbc88745d4ccd09ac6cbb
Nov 24 19:25:56.806 INFO running `"docker" "start" "-a" "dc509a8c44bb460bd00419efaf6d9a6dc4c3926fa86fbc88745d4ccd09ac6cbb"`
Nov 24 19:25:59.753 INFO [stderr] usermod: no changes
Nov 24 19:25:59.989 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.27
Nov 24 19:25:59.992 INFO [stderr]    Compiling cfg-if v0.1.6
Nov 24 19:26:00.004 INFO [stderr]    Compiling ucd-util v0.1.2
Nov 24 19:26:00.008 INFO [stderr]    Compiling lazy_static v1.2.0
Nov 24 19:26:00.020 INFO [stderr]    Compiling regex v1.0.6
Nov 24 19:26:00.043 INFO [stderr]    Compiling unicode-segmentation v1.2.1
Nov 24 19:26:00.043 INFO [stderr]    Compiling utf8-ranges v1.0.2
Nov 24 19:26:00.044 INFO [stderr]    Compiling quick-error v1.2.2
Nov 24 19:26:00.808 INFO [stderr]    Compiling termcolor v1.0.4
Nov 24 19:26:01.390 INFO [stderr]    Compiling wasm-bindgen v0.2.27
Nov 24 19:26:01.589 INFO [stderr]    Compiling sourcefile v0.1.4
Nov 24 19:26:05.414 INFO [stderr]    Compiling memchr v2.1.1
Nov 24 19:26:05.416 INFO [stderr]    Compiling log v0.4.6
Nov 24 19:26:05.417 INFO [stderr]    Compiling humantime v1.1.1
Nov 24 19:26:05.418 INFO [stderr]    Compiling thread_local v0.3.6
Nov 24 19:26:05.473 INFO [stderr]    Compiling regex-syntax v0.6.3
Nov 24 19:26:07.688 INFO [stderr]    Compiling int_hash v0.1.1
Nov 24 19:26:07.744 INFO [stderr]    Compiling heck v0.3.0
Nov 24 19:26:07.884 INFO [stderr]    Compiling quote v0.6.9
Nov 24 19:26:09.628 INFO [stderr]    Compiling backtrace-sys v0.1.24
Nov 24 19:26:11.061 INFO [stderr]    Compiling backtrace v0.3.9
Nov 24 19:26:14.200 INFO [stderr]    Compiling syn v0.15.18
Nov 24 19:26:14.880 INFO [stderr]    Compiling aho-corasick v0.6.9
Nov 24 19:26:14.880 INFO [stderr]    Compiling nom v4.1.1
Nov 24 19:26:22.020 INFO [stderr]    Compiling weedle v0.8.0
Nov 24 19:26:42.693 INFO [stderr]    Compiling env_logger v0.5.13
Nov 24 19:26:50.888 INFO [stderr]    Compiling synstructure v0.10.1
Nov 24 19:26:50.891 INFO [stderr]    Compiling wasm-bindgen-backend v0.2.27
Nov 24 19:26:57.244 INFO [stderr]    Compiling failure_derive v0.1.3
Nov 24 19:27:00.644 INFO [stderr]    Compiling wasm-bindgen-macro-support v0.2.27
Nov 24 19:27:02.961 INFO [stderr]    Compiling failure v0.1.3
Nov 24 19:27:04.433 INFO [stderr]    Compiling wasm-bindgen-webidl v0.2.21
Nov 24 19:27:05.097 INFO [stderr]    Compiling wasm-bindgen-macro v0.2.27
Nov 24 19:27:08.576 INFO [stderr]    Compiling js-sys v0.3.4
Nov 24 19:27:14.532 INFO [stderr]    Compiling web-sys v0.3.4
Nov 24 19:27:16.832 INFO [stderr]    Compiling wasm-bindgen-futures v0.3.4
Nov 24 19:27:30.528 INFO [stderr]    Compiling draco v0.1.1 (/source)
Nov 24 19:27:30.553 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Nov 24 19:27:30.553 INFO [stderr] 
Nov 24 19:27:30.559 INFO [stderr] error: Could not compile `draco`.
Nov 24 19:27:30.563 INFO [stderr] 
Nov 24 19:27:30.564 INFO [stderr] To learn more, run the command again with --verbose.
Nov 24 19:27:30.564 INFO [stderr] su: No module specific data is present
Nov 24 19:27:31.189 INFO running `"docker" "inspect" "dc509a8c44bb460bd00419efaf6d9a6dc4c3926fa86fbc88745d4ccd09ac6cbb"`
Nov 24 19:27:31.441 INFO running `"docker" "rm" "-f" "dc509a8c44bb460bd00419efaf6d9a6dc4c3926fa86fbc88745d4ccd09ac6cbb"`
Nov 24 19:27:31.752 INFO [stdout] dc509a8c44bb460bd00419efaf6d9a6dc4c3926fa86fbc88745d4ccd09ac6cbb