Dec 18 12:50:42.560 INFO checking proc-macro-faithful-display-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 12:50:42.620 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/proc-macro-faithful-display/0.1.0:/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 12:50:42.915 INFO [stdout] cfbef8ace38325e0f3b43462e7e0be3c043608d44e4ec8be6e1264cbfa1961ed
Dec 18 12:50:42.917 INFO running `"docker" "start" "-a" "cfbef8ace38325e0f3b43462e7e0be3c043608d44e4ec8be6e1264cbfa1961ed"`
Dec 18 12:50:43.460 INFO [stderr]     Checking proc-macro-faithful-display v0.1.0 (/opt/crater/workdir)
Dec 18 12:50:43.732 INFO [stderr] warning: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
Dec 18 12:50:43.732 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 12:50:43.732 INFO [stderr]   |
Dec 18 12:50:43.732 INFO [stderr] 1 | #![feature(extern_crate_item_prelude)]
Dec 18 12:50:43.732 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 12:50:43.732 INFO [stderr]   |
Dec 18 12:50:43.732 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 12:50:43.732 INFO [stderr] 
Dec 18 12:50:43.772 INFO [stderr] warning: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
Dec 18 12:50:43.772 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 12:50:43.772 INFO [stderr]   |
Dec 18 12:50:43.772 INFO [stderr] 1 | #![feature(extern_crate_item_prelude)]
Dec 18 12:50:43.772 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 12:50:43.772 INFO [stderr]   |
Dec 18 12:50:43.772 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 12:50:43.772 INFO [stderr] 
Dec 18 12:50:43.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 18 12:50:44.344 INFO running `"docker" "inspect" "cfbef8ace38325e0f3b43462e7e0be3c043608d44e4ec8be6e1264cbfa1961ed"`
Dec 18 12:50:44.414 INFO running `"docker" "rm" "-f" "cfbef8ace38325e0f3b43462e7e0be3c043608d44e4ec8be6e1264cbfa1961ed"`
Dec 18 12:50:44.584 INFO [stdout] cfbef8ace38325e0f3b43462e7e0be3c043608d44e4ec8be6e1264cbfa1961ed