Dec 19 16:30:53.777 INFO checking gingerDevilish/wc-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:30:53.777 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/gingerDevilish/wc-rs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:30:54.304 INFO [stdout] 63cdcd967711a12d2c891b9cf47ff4374055998ea9836b3db329f10ceeab093f
Dec 19 16:30:54.310 INFO running `"docker" "start" "-a" "63cdcd967711a12d2c891b9cf47ff4374055998ea9836b3db329f10ceeab093f"`
Dec 19 16:30:56.220 INFO [stderr]     Checking wc v0.1.0 (/opt/crater/workdir)
Dec 19 16:30:56.806 INFO [stderr] warning: the feature `iterator_flatten` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 19 16:30:56.806 INFO [stderr]  --> src/main.rs:1:12
Dec 19 16:30:56.806 INFO [stderr]   |
Dec 19 16:30:56.806 INFO [stderr] 1 | #![feature(iterator_flatten)]
Dec 19 16:30:56.806 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 19 16:30:56.806 INFO [stderr]   |
Dec 19 16:30:56.806 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 16:30:56.806 INFO [stderr] 
Dec 19 16:30:56.928 INFO [stderr] warning: the feature `iterator_flatten` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 19 16:30:56.928 INFO [stderr]  --> src/main.rs:1:12
Dec 19 16:30:56.928 INFO [stderr]   |
Dec 19 16:30:56.928 INFO [stderr] 1 | #![feature(iterator_flatten)]
Dec 19 16:30:56.928 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 19 16:30:56.928 INFO [stderr]   |
Dec 19 16:30:56.928 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 16:30:56.928 INFO [stderr] 
Dec 19 16:30:57.044 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 19 16:30:57.888 INFO running `"docker" "inspect" "63cdcd967711a12d2c891b9cf47ff4374055998ea9836b3db329f10ceeab093f"`
Dec 19 16:30:58.078 INFO running `"docker" "rm" "-f" "63cdcd967711a12d2c891b9cf47ff4374055998ea9836b3db329f10ceeab093f"`
Dec 19 16:30:58.353 INFO [stdout] 63cdcd967711a12d2c891b9cf47ff4374055998ea9836b3db329f10ceeab093f