Dec 03 15:19:07.898 INFO testing cons-list-0.0.3 against 1.30.1 for beta-1.31-5
Dec 03 15:19:07.898 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 15:19:08.096 INFO [stdout] b73f933ebd5bce29a5217b3ded4267987fed4bbca21dc7e5e9680d772cf8bc90
Dec 03 15:19:08.098 INFO running `"docker" "start" "-a" "b73f933ebd5bce29a5217b3ded4267987fed4bbca21dc7e5e9680d772cf8bc90"`
Dec 03 15:19:08.519 INFO [stderr] usermod: no changes
Dec 03 15:19:08.544 INFO [stderr]    Compiling cons-list v0.0.3 (/source)
Dec 03 15:19:09.347 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 03 15:19:09.348 INFO [stderr] su: No module specific data is present
Dec 03 15:19:09.703 INFO running `"docker" "inspect" "b73f933ebd5bce29a5217b3ded4267987fed4bbca21dc7e5e9680d772cf8bc90"`
Dec 03 15:19:09.906 INFO running `"docker" "rm" "-f" "b73f933ebd5bce29a5217b3ded4267987fed4bbca21dc7e5e9680d772cf8bc90"`
Dec 03 15:19:10.178 INFO [stdout] b73f933ebd5bce29a5217b3ded4267987fed4bbca21dc7e5e9680d772cf8bc90
Dec 03 15:19:10.187 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 test --frozen --no-run" "-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 15:19:10.391 INFO [stdout] 5ea9959e63a826d3d8ee93d4566c11fcff89d0e887b81293bfc43a49d084fb6a
Dec 03 15:19:10.395 INFO running `"docker" "start" "-a" "5ea9959e63a826d3d8ee93d4566c11fcff89d0e887b81293bfc43a49d084fb6a"`
Dec 03 15:19:10.845 INFO [stderr] usermod: no changes
Dec 03 15:19:10.873 INFO [stderr]    Compiling cons-list v0.0.3 (/source)
Dec 03 15:19:11.732 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 15:19:11.732 INFO [stderr]   --> src/lib.rs:13:19
Dec 03 15:19:11.733 INFO [stderr]    |
Dec 03 15:19:11.733 INFO [stderr] 13 | #![cfg_attr(test, feature(test))]
Dec 03 15:19:11.733 INFO [stderr]    |                   ^^^^^^^^^^^^^^
Dec 03 15:19:11.733 INFO [stderr] 
Dec 03 15:19:11.734 INFO [stderr] error: aborting due to previous error
Dec 03 15:19:11.734 INFO [stderr] 
Dec 03 15:19:11.734 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 15:19:11.741 INFO [stderr] error: Could not compile `cons-list`.
Dec 03 15:19:11.741 INFO [stderr] 
Dec 03 15:19:11.741 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:19:11.742 INFO [stderr] su: No module specific data is present
Dec 03 15:19:12.358 INFO running `"docker" "inspect" "5ea9959e63a826d3d8ee93d4566c11fcff89d0e887b81293bfc43a49d084fb6a"`
Dec 03 15:19:12.629 INFO running `"docker" "rm" "-f" "5ea9959e63a826d3d8ee93d4566c11fcff89d0e887b81293bfc43a49d084fb6a"`
Dec 03 15:19:12.813 INFO [stdout] 5ea9959e63a826d3d8ee93d4566c11fcff89d0e887b81293bfc43a49d084fb6a