Dec 18 08:40:59.219 INFO checking AleVul/kernel_playground against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:40:59.219 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/AleVul/kernel_playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:40:59.472 INFO [stdout] 75707e911bfd5b8d65c21b7778d32215cfbb9c33b51a8cf7b58c53937214937b
Dec 18 08:40:59.474 INFO running `"docker" "start" "-a" "75707e911bfd5b8d65c21b7778d32215cfbb9c33b51a8cf7b58c53937214937b"`
Dec 18 08:41:00.476 INFO [stderr]     Checking bootloader_precompiled v0.3.0
Dec 18 08:41:01.118 INFO [stderr]     Checking kernel_playground v0.1.0 (/opt/crater/workdir)
Dec 18 08:41:01.648 INFO [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
Dec 18 08:41:01.648 INFO [stderr]   --> src/main.rs:32:1
Dec 18 08:41:01.648 INFO [stderr]    |
Dec 18 08:41:01.648 INFO [stderr] 32 | / fn panic(_info: &PanicInfo) -> ! {
Dec 18 08:41:01.648 INFO [stderr] 33 | |     loop {}
Dec 18 08:41:01.649 INFO [stderr] 34 | | }
Dec 18 08:41:01.649 INFO [stderr]    | |_^
Dec 18 08:41:01.649 INFO [stderr]    |
Dec 18 08:41:01.650 INFO [stderr]    = note: first defined in crate `std`.
Dec 18 08:41:01.650 INFO [stderr] 
Dec 18 08:41:01.676 INFO [stderr] error: aborting due to previous error
Dec 18 08:41:01.677 INFO [stderr] 
Dec 18 08:41:01.677 INFO [stderr] For more information about this error, try `rustc --explain E0152`.
Dec 18 08:41:01.683 INFO [stderr] error: Could not compile `kernel_playground`.
Dec 18 08:41:01.683 INFO [stderr] 
Dec 18 08:41:01.683 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 08:41:02.420 INFO running `"docker" "inspect" "75707e911bfd5b8d65c21b7778d32215cfbb9c33b51a8cf7b58c53937214937b"`
Dec 18 08:41:02.770 INFO running `"docker" "rm" "-f" "75707e911bfd5b8d65c21b7778d32215cfbb9c33b51a8cf7b58c53937214937b"`
Dec 18 08:41:03.121 INFO [stdout] 75707e911bfd5b8d65c21b7778d32215cfbb9c33b51a8cf7b58c53937214937b