Dec 19 19:51:12.547 INFO checking binshengliu/rforests against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:51:12.547 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/binshengliu/rforests:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:51:13.170 INFO [stdout] 8f29ea21e5f376449855dd2057a0f761441a77f3225403abbf407731f3ef3925
Dec 19 19:51:13.196 INFO running `"docker" "start" "-a" "8f29ea21e5f376449855dd2057a0f761441a77f3225403abbf407731f3ef3925"`
Dec 19 19:51:14.931 INFO [stderr]     Checking clap v2.27.0
Dec 19 19:51:14.949 INFO [stderr]     Checking env_logger v0.4.3
Dec 19 19:51:22.596 INFO [stderr]     Checking rforests v0.1.0 (/opt/crater/workdir)
Dec 19 19:51:24.360 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 19:51:24.360 INFO [stderr]  --> src/lib.rs:2:12
Dec 19 19:51:24.360 INFO [stderr]   |
Dec 19 19:51:24.360 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 19 19:51:24.360 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:51:24.360 INFO [stderr]   |
Dec 19 19:51:24.360 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 19:51:24.361 INFO [stderr] 
Dec 19 19:51:24.373 INFO [stderr] warning: the feature `ord_max_min` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 19 19:51:24.373 INFO [stderr]  --> src/lib.rs:1:12
Dec 19 19:51:24.373 INFO [stderr]   |
Dec 19 19:51:24.373 INFO [stderr] 1 | #![feature(ord_max_min)]
Dec 19 19:51:24.373 INFO [stderr]   |            ^^^^^^^^^^^
Dec 19 19:51:24.373 INFO [stderr] 
Dec 19 19:51:24.470 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 19:51:24.470 INFO [stderr]  --> src/lib.rs:2:12
Dec 19 19:51:24.470 INFO [stderr]   |
Dec 19 19:51:24.470 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 19 19:51:24.470 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:51:24.470 INFO [stderr]   |
Dec 19 19:51:24.470 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 19:51:24.470 INFO [stderr] 
Dec 19 19:51:24.470 INFO [stderr] warning: the feature `ord_max_min` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 19 19:51:24.470 INFO [stderr]  --> src/lib.rs:1:12
Dec 19 19:51:24.470 INFO [stderr]   |
Dec 19 19:51:24.470 INFO [stderr] 1 | #![feature(ord_max_min)]
Dec 19 19:51:24.470 INFO [stderr]   |            ^^^^^^^^^^^
Dec 19 19:51:24.470 INFO [stderr] 
Dec 19 19:51:25.240 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.47s
Dec 19 19:51:26.064 INFO running `"docker" "inspect" "8f29ea21e5f376449855dd2057a0f761441a77f3225403abbf407731f3ef3925"`
Dec 19 19:51:26.308 INFO running `"docker" "rm" "-f" "8f29ea21e5f376449855dd2057a0f761441a77f3225403abbf407731f3ef3925"`
Dec 19 19:51:26.561 INFO [stdout] 8f29ea21e5f376449855dd2057a0f761441a77f3225403abbf407731f3ef3925