Dec 11 21:47:48.506 INFO checking binshengliu/rforests against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 21:47:48.506 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 11 21:47:48.931 INFO [stdout] f4e92cf159beb2c31e779e76b838903d75f3281161731a1ee86345182ab51353
Dec 11 21:47:48.933 INFO running `"docker" "start" "-a" "f4e92cf159beb2c31e779e76b838903d75f3281161731a1ee86345182ab51353"`
Dec 11 21:47:50.833 INFO [stderr] usermod: no changes
Dec 11 21:47:51.056 INFO [stderr]     Checking clap v2.27.0
Dec 11 21:47:58.841 INFO [stderr]     Checking rforests v0.1.0 (/source)
Dec 11 21:48:01.244 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 21:48:01.244 INFO [stderr]  --> src/lib.rs:2:12
Dec 11 21:48:01.244 INFO [stderr]   |
Dec 11 21:48:01.244 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 11 21:48:01.244 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:48:01.244 INFO [stderr]   |
Dec 11 21:48:01.244 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 21:48:01.244 INFO [stderr] 
Dec 11 21:48:01.244 INFO [stderr] warning: the feature `ord_max_min` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 11 21:48:01.244 INFO [stderr]  --> src/lib.rs:1:12
Dec 11 21:48:01.244 INFO [stderr]   |
Dec 11 21:48:01.244 INFO [stderr] 1 | #![feature(ord_max_min)]
Dec 11 21:48:01.244 INFO [stderr]   |            ^^^^^^^^^^^
Dec 11 21:48:01.244 INFO [stderr] 
Dec 11 21:48:02.660 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 21:48:02.660 INFO [stderr]  --> src/lib.rs:2:12
Dec 11 21:48:02.660 INFO [stderr]   |
Dec 11 21:48:02.660 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 11 21:48:02.660 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:48:02.660 INFO [stderr]   |
Dec 11 21:48:02.660 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 21:48:02.660 INFO [stderr] 
Dec 11 21:48:02.668 INFO [stderr] warning: the feature `ord_max_min` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 11 21:48:02.668 INFO [stderr]  --> src/lib.rs:1:12
Dec 11 21:48:02.668 INFO [stderr]   |
Dec 11 21:48:02.668 INFO [stderr] 1 | #![feature(ord_max_min)]
Dec 11 21:48:02.668 INFO [stderr]   |            ^^^^^^^^^^^
Dec 11 21:48:02.668 INFO [stderr] 
Dec 11 21:48:04.168 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.30s
Dec 11 21:48:04.192 INFO [stderr] su: No module specific data is present
Dec 11 21:48:05.016 INFO running `"docker" "inspect" "f4e92cf159beb2c31e779e76b838903d75f3281161731a1ee86345182ab51353"`
Dec 11 21:48:05.378 INFO running `"docker" "rm" "-f" "f4e92cf159beb2c31e779e76b838903d75f3281161731a1ee86345182ab51353"`
Dec 11 21:48:05.692 INFO [stdout] f4e92cf159beb2c31e779e76b838903d75f3281161731a1ee86345182ab51353