Dec 01 23:11:15.658 INFO testing binshengliu/rforests against 1.30.1 for beta-1.31-5
Dec 01 23:11:15.658 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 23:11:16.035 INFO [stdout] 38df809fbc0f5c4986d1ddfcf824a5b79812a70e32e0e2c872d0362fe3cbc640
Dec 01 23:11:16.037 INFO running `"docker" "start" "-a" "38df809fbc0f5c4986d1ddfcf824a5b79812a70e32e0e2c872d0362fe3cbc640"`
Dec 01 23:11:17.193 INFO [stderr] usermod: no changes
Dec 01 23:11:17.362 INFO [stderr]    Compiling memchr v1.0.2
Dec 01 23:11:17.378 INFO [stderr]    Compiling clap v2.27.0
Dec 01 23:11:18.857 INFO [stderr]    Compiling aho-corasick v0.6.3
Dec 01 23:11:20.471 INFO [stderr]    Compiling regex v0.2.2
Dec 01 23:11:32.163 INFO [stderr]    Compiling env_logger v0.4.3
Dec 01 23:11:49.526 INFO [stderr]    Compiling rforests v0.1.0 (/source)
Dec 01 23:11:50.947 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 23:11:50.947 INFO [stderr]  --> src/lib.rs:1:1
Dec 01 23:11:50.947 INFO [stderr]   |
Dec 01 23:11:50.947 INFO [stderr] 1 | #![feature(ord_max_min)]
Dec 01 23:11:50.947 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 23:11:50.947 INFO [stderr] 
Dec 01 23:11:50.947 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 23:11:50.947 INFO [stderr]  --> src/lib.rs:2:1
Dec 01 23:11:50.947 INFO [stderr]   |
Dec 01 23:11:50.947 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 01 23:11:50.947 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 23:11:50.947 INFO [stderr] 
Dec 01 23:11:50.947 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 23:11:50.947 INFO [stderr]  --> src/lib.rs:3:1
Dec 01 23:11:50.947 INFO [stderr]   |
Dec 01 23:11:50.947 INFO [stderr] 3 | #![feature(unboxed_closures)]
Dec 01 23:11:50.947 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 23:11:50.947 INFO [stderr] 
Dec 01 23:11:50.947 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 23:11:50.947 INFO [stderr]  --> src/lib.rs:4:1
Dec 01 23:11:50.947 INFO [stderr]   |
Dec 01 23:11:50.947 INFO [stderr] 4 | #![feature(test)]
Dec 01 23:11:50.947 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 01 23:11:50.947 INFO [stderr] 
Dec 01 23:11:50.955 INFO [stderr] error: aborting due to 4 previous errors
Dec 01 23:11:50.955 INFO [stderr] 
Dec 01 23:11:50.955 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 23:11:50.961 INFO [stderr] error: Could not compile `rforests`.
Dec 01 23:11:50.961 INFO [stderr] 
Dec 01 23:11:50.961 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 23:11:50.962 INFO [stderr] su: No module specific data is present
Dec 01 23:11:51.759 INFO running `"docker" "inspect" "38df809fbc0f5c4986d1ddfcf824a5b79812a70e32e0e2c872d0362fe3cbc640"`
Dec 01 23:11:52.082 INFO running `"docker" "rm" "-f" "38df809fbc0f5c4986d1ddfcf824a5b79812a70e32e0e2c872d0362fe3cbc640"`
Dec 01 23:11:52.383 INFO [stdout] 38df809fbc0f5c4986d1ddfcf824a5b79812a70e32e0e2c872d0362fe3cbc640
