Nov 01 05:47:12.857 INFO checking dtoebe/leapyear-rs against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 05:47:12.857 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 05:47:13.484 INFO blam! 75c47fc7d30b25a8c1693bceddf9d1340b6783e915f1618842075a1a45ece5eb
Nov 01 05:47:13.486 INFO running `"docker" "start" "-a" "75c47fc7d30b25a8c1693bceddf9d1340b6783e915f1618842075a1a45ece5eb"`
Nov 01 05:47:15.035 INFO kablam! usermod: no changes
Nov 01 05:47:15.198 INFO kablam!     Checking leapyear-rs v0.1.0 (/source)
Nov 01 05:47:15.880 INFO kablam! error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #54658)
Nov 01 05:47:15.880 INFO kablam!   --> src/lib.rs:64:9
Nov 01 05:47:15.880 INFO kablam!    |
Nov 01 05:47:15.880 INFO kablam! 64 |     use test::Bencher;
Nov 01 05:47:15.880 INFO kablam!    |         ^^^^
Nov 01 05:47:15.881 INFO kablam!    |
Nov 01 05:47:15.881 INFO kablam!    = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 01 05:47:15.881 INFO kablam! 
Nov 01 05:47:15.964 INFO kablam! error: aborting due to previous error
Nov 01 05:47:15.964 INFO kablam! 
Nov 01 05:47:15.968 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 01 05:47:15.984 INFO kablam! error: Could not compile `leapyear-rs`.
Nov 01 05:47:15.984 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 01 05:47:16.040 INFO kablam! error: build failed
Nov 01 05:47:16.040 INFO kablam! su: No module specific data is present
Nov 01 05:47:16.704 INFO running `"docker" "rm" "-f" "75c47fc7d30b25a8c1693bceddf9d1340b6783e915f1618842075a1a45ece5eb"`
Nov 01 05:47:17.000 INFO blam! 75c47fc7d30b25a8c1693bceddf9d1340b6783e915f1618842075a1a45ece5eb