Dec 18 01:27:09.298 INFO checking derekjw/hearts against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 01:27:09.298 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/derekjw/hearts:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:27:09.805 INFO [stdout] 7dc4a91ac1eed0bd5bc1b042756ef8699840e0f36bb4b3ac95346e44a7715c47
Dec 18 01:27:09.807 INFO running `"docker" "start" "-a" "7dc4a91ac1eed0bd5bc1b042756ef8699840e0f36bb4b3ac95346e44a7715c47"`
Dec 18 01:27:12.624 INFO [stderr]     Checking memchr v0.1.11
Dec 18 01:27:12.637 INFO [stderr]     Checking thread-id v2.0.0
Dec 18 01:27:13.153 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 18 01:27:13.282 INFO [stderr]     Checking thread_local v0.2.7
Dec 18 01:27:14.104 INFO [stderr]     Checking regex v0.1.80
Dec 18 01:27:16.314 INFO [stderr]     Checking env_logger v0.3.5
Dec 18 01:27:16.784 INFO [stderr]     Checking hearts v0.0.1 (/opt/crater/workdir)
Dec 18 01:27:17.060 INFO [stderr] error[E0557]: feature has been removed
Dec 18 01:27:17.060 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:27:17.060 INFO [stderr]   |
Dec 18 01:27:17.060 INFO [stderr] 1 | #![feature(custom_derive, plugin)]
Dec 18 01:27:17.060 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 01:27:17.060 INFO [stderr]   |
Dec 18 01:27:17.060 INFO [stderr] note: subsumed by `#[proc_macro_derive]`
Dec 18 01:27:17.060 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:27:17.060 INFO [stderr]   |
Dec 18 01:27:17.060 INFO [stderr] 1 | #![feature(custom_derive, plugin)]
Dec 18 01:27:17.060 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 01:27:17.060 INFO [stderr] 
Dec 18 01:27:17.121 INFO [stderr] error[E0557]: feature has been removed
Dec 18 01:27:17.121 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:27:17.121 INFO [stderr]   |
Dec 18 01:27:17.121 INFO [stderr] 1 | #![feature(custom_derive, plugin)]
Dec 18 01:27:17.121 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 01:27:17.121 INFO [stderr]   |
Dec 18 01:27:17.121 INFO [stderr] note: subsumed by `#[proc_macro_derive]`
Dec 18 01:27:17.121 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:27:17.121 INFO [stderr]   |
Dec 18 01:27:17.121 INFO [stderr] 1 | #![feature(custom_derive, plugin)]
Dec 18 01:27:17.121 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 01:27:17.121 INFO [stderr] 
Dec 18 01:27:19.341 INFO [stderr] error: aborting due to previous error
Dec 18 01:27:19.341 INFO [stderr] 
Dec 18 01:27:19.341 INFO [stderr] For more information about this error, try `rustc --explain E0557`.
Dec 18 01:27:19.368 INFO [stderr] error: Could not compile `hearts`.
Dec 18 01:27:19.368 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 01:27:19.644 INFO [stderr] error: aborting due to previous error
Dec 18 01:27:19.644 INFO [stderr] 
Dec 18 01:27:19.644 INFO [stderr] For more information about this error, try `rustc --explain E0557`.
Dec 18 01:27:19.654 INFO [stderr] error: Could not compile `hearts`.
Dec 18 01:27:19.654 INFO [stderr] 
Dec 18 01:27:19.654 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 01:27:20.373 INFO running `"docker" "inspect" "7dc4a91ac1eed0bd5bc1b042756ef8699840e0f36bb4b3ac95346e44a7715c47"`
Dec 18 01:27:20.746 INFO running `"docker" "rm" "-f" "7dc4a91ac1eed0bd5bc1b042756ef8699840e0f36bb4b3ac95346e44a7715c47"`
Dec 18 01:27:21.024 INFO [stdout] 7dc4a91ac1eed0bd5bc1b042756ef8699840e0f36bb4b3ac95346e44a7715c47