Dec 18 16:28:47.576 INFO checking fixed_circular_buffer-0.2.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:28:47.577 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/fixed_circular_buffer/0.2.2:/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 16:28:47.940 INFO [stdout] 4aab253d2d69a93ca528b07213ea6798c6a31b514ac5060f10c04e3a37818e9c
Dec 18 16:28:47.944 INFO running `"docker" "start" "-a" "4aab253d2d69a93ca528b07213ea6798c6a31b514ac5060f10c04e3a37818e9c"`
Dec 18 16:28:49.182 INFO [stderr]     Checking fixed_circular_buffer v0.2.2 (/opt/crater/workdir)
Dec 18 16:28:49.692 INFO [stderr] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 18 16:28:49.692 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 16:28:49.692 INFO [stderr]   |
Dec 18 16:28:49.692 INFO [stderr] 1 | #![feature(core)]
Dec 18 16:28:49.692 INFO [stderr]   |            ^^^^
Dec 18 16:28:49.692 INFO [stderr]   |
Dec 18 16:28:49.699 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 16:28:49.699 INFO [stderr] 
Dec 18 16:28:50.200 INFO [stderr] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 18 16:28:50.200 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 16:28:50.200 INFO [stderr]   |
Dec 18 16:28:50.200 INFO [stderr] 1 | #![feature(core)]
Dec 18 16:28:50.200 INFO [stderr]   |            ^^^^
Dec 18 16:28:50.200 INFO [stderr]   |
Dec 18 16:28:50.200 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 16:28:50.200 INFO [stderr] 
Dec 18 16:28:50.256 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Dec 18 16:28:50.565 INFO running `"docker" "inspect" "4aab253d2d69a93ca528b07213ea6798c6a31b514ac5060f10c04e3a37818e9c"`
Dec 18 16:28:50.680 INFO running `"docker" "rm" "-f" "4aab253d2d69a93ca528b07213ea6798c6a31b514ac5060f10c04e3a37818e9c"`
Dec 18 16:28:50.780 INFO [stdout] 4aab253d2d69a93ca528b07213ea6798c6a31b514ac5060f10c04e3a37818e9c