Dec 12 14:46:40.137 INFO checking futures-bufio-0.2.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 14:46:40.137 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 14:46:40.596 INFO [stdout] 73820fe9a5fdc56c28e25d81de2e7d287a5a07757f138c4526a8dff675d4e0eb
Dec 12 14:46:40.602 INFO running `"docker" "start" "-a" "73820fe9a5fdc56c28e25d81de2e7d287a5a07757f138c4526a8dff675d4e0eb"`
Dec 12 14:46:41.957 INFO [stderr] usermod: no changes
Dec 12 14:46:42.032 INFO [stderr]     Checking futures-bufio v0.2.0 (/source)
Dec 12 14:46:43.416 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 14:46:43.416 INFO [stderr]   --> src/lib.rs:10:12
Dec 12 14:46:43.416 INFO [stderr]    |
Dec 12 14:46:43.416 INFO [stderr] 10 | #![feature(conservative_impl_trait)]
Dec 12 14:46:43.416 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:46:43.416 INFO [stderr]    |
Dec 12 14:46:43.416 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 12 14:46:43.416 INFO [stderr] 
Dec 12 14:46:43.716 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 14:46:43.716 INFO [stderr]   --> src/lib.rs:10:12
Dec 12 14:46:43.716 INFO [stderr]    |
Dec 12 14:46:43.716 INFO [stderr] 10 | #![feature(conservative_impl_trait)]
Dec 12 14:46:43.716 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 14:46:43.716 INFO [stderr]    |
Dec 12 14:46:43.716 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 12 14:46:43.716 INFO [stderr] 
Dec 12 14:46:43.742 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Dec 12 14:46:43.744 INFO [stderr] su: No module specific data is present
Dec 12 14:46:44.394 INFO running `"docker" "inspect" "73820fe9a5fdc56c28e25d81de2e7d287a5a07757f138c4526a8dff675d4e0eb"`
Dec 12 14:46:44.682 INFO running `"docker" "rm" "-f" "73820fe9a5fdc56c28e25d81de2e7d287a5a07757f138c4526a8dff675d4e0eb"`
Dec 12 14:46:44.976 INFO [stdout] 73820fe9a5fdc56c28e25d81de2e7d287a5a07757f138c4526a8dff675d4e0eb