Dec 18 16:20:02.469 INFO checking futures-bufio-0.2.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:20:02.469 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/futures-bufio/0.2.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:20:02.970 INFO [stdout] d4fe5a3a44b37465f591d957aee735aa900f9aedc829804e4e0e24c10b2798c3
Dec 18 16:20:02.972 INFO running `"docker" "start" "-a" "d4fe5a3a44b37465f591d957aee735aa900f9aedc829804e4e0e24c10b2798c3"`
Dec 18 16:20:04.840 INFO [stderr]     Checking futures-bufio v0.2.0 (/opt/crater/workdir)
Dec 18 16:20:05.404 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 16:20:05.404 INFO [stderr]   --> src/lib.rs:10:12
Dec 18 16:20:05.404 INFO [stderr]    |
Dec 18 16:20:05.404 INFO [stderr] 10 | #![feature(conservative_impl_trait)]
Dec 18 16:20:05.404 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:20:05.404 INFO [stderr]    |
Dec 18 16:20:05.404 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 16:20:05.404 INFO [stderr] 
Dec 18 16:20:05.965 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 16:20:05.965 INFO [stderr]   --> src/lib.rs:10:12
Dec 18 16:20:05.965 INFO [stderr]    |
Dec 18 16:20:05.965 INFO [stderr] 10 | #![feature(conservative_impl_trait)]
Dec 18 16:20:05.965 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:20:05.965 INFO [stderr]    |
Dec 18 16:20:05.965 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 16:20:05.965 INFO [stderr] 
Dec 18 16:20:06.036 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
Dec 18 16:20:06.755 INFO running `"docker" "inspect" "d4fe5a3a44b37465f591d957aee735aa900f9aedc829804e4e0e24c10b2798c3"`
Dec 18 16:20:06.870 INFO running `"docker" "rm" "-f" "d4fe5a3a44b37465f591d957aee735aa900f9aedc829804e4e0e24c10b2798c3"`
Dec 18 16:20:06.996 INFO [stdout] d4fe5a3a44b37465f591d957aee735aa900f9aedc829804e4e0e24c10b2798c3