Dec 02 20:09:22.704 INFO testing rlibcex-0.1.2 against 1.30.1 for beta-1.31-5
Dec 02 20:09:22.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02 20:09:23.272 INFO [stdout] e0bc05229b023607f1920d53581b709f15699b7af76e5c991d48956ebbb8865e
Dec 02 20:09:23.277 INFO running `"docker" "start" "-a" "e0bc05229b023607f1920d53581b709f15699b7af76e5c991d48956ebbb8865e"`
Dec 02 20:09:24.115 INFO [stderr] usermod: no changes
Dec 02 20:09:24.183 INFO [stderr]    Compiling rlibcex v0.1.2 (/source)
Dec 02 20:09:24.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
Dec 02 20:09:24.383 INFO [stderr] su: No module specific data is present
Dec 02 20:09:25.029 INFO running `"docker" "inspect" "e0bc05229b023607f1920d53581b709f15699b7af76e5c991d48956ebbb8865e"`
Dec 02 20:09:25.268 INFO running `"docker" "rm" "-f" "e0bc05229b023607f1920d53581b709f15699b7af76e5c991d48956ebbb8865e"`
Dec 02 20:09:25.464 INFO [stdout] e0bc05229b023607f1920d53581b709f15699b7af76e5c991d48956ebbb8865e
Dec 02 20:09:25.469 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02 20:09:25.771 INFO [stdout] bb5a7eb052b51b713b6be9a5384848f9a417ecadc9093ea282f55816d69803d4
Dec 02 20:09:25.773 INFO running `"docker" "start" "-a" "bb5a7eb052b51b713b6be9a5384848f9a417ecadc9093ea282f55816d69803d4"`
Dec 02 20:09:26.679 INFO [stderr] usermod: no changes
Dec 02 20:09:26.699 INFO [stderr]    Compiling rlibcex v0.1.2 (/source)
Dec 02 20:09:27.378 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:09:27.379 INFO [stderr]  --> src/lib.rs:3:19
Dec 02 20:09:27.379 INFO [stderr]   |
Dec 02 20:09:27.379 INFO [stderr] 3 | #![cfg_attr(test, feature(test))]
Dec 02 20:09:27.379 INFO [stderr]   |                   ^^^^^^^^^^^^^^
Dec 02 20:09:27.379 INFO [stderr] 
Dec 02 20:09:27.379 INFO [stderr] error: aborting due to previous error
Dec 02 20:09:27.379 INFO [stderr] 
Dec 02 20:09:27.379 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:09:27.379 INFO [stderr] error: Could not compile `rlibcex`.
Dec 02 20:09:27.379 INFO [stderr] 
Dec 02 20:09:27.379 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:09:27.379 INFO [stderr] su: No module specific data is present
Dec 02 20:09:28.027 INFO running `"docker" "inspect" "bb5a7eb052b51b713b6be9a5384848f9a417ecadc9093ea282f55816d69803d4"`
Dec 02 20:09:28.249 INFO running `"docker" "rm" "-f" "bb5a7eb052b51b713b6be9a5384848f9a417ecadc9093ea282f55816d69803d4"`
Dec 02 20:09:28.463 INFO [stdout] bb5a7eb052b51b713b6be9a5384848f9a417ecadc9093ea282f55816d69803d4