Dec 03 03:28:02.397 INFO testing language-reporting-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 03:28:02.398 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 03 03:28:02.588 INFO [stdout] f542eafebe2168c342c7df31f133fa122d36c8880e68b5cc4182bbcf92ce3911
Dec 03 03:28:02.591 INFO running `"docker" "start" "-a" "f542eafebe2168c342c7df31f133fa122d36c8880e68b5cc4182bbcf92ce3911"`
Dec 03 03:28:03.290 INFO [stderr] usermod: no changes
Dec 03 03:28:03.411 INFO [stderr]    Compiling render-tree v0.1.0
Dec 03 03:28:03.413 INFO [stderr]    Compiling codespan v0.2.0
Dec 03 03:28:04.408 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 03:28:04.408 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/render-tree-0.1.0/src/lib.rs:1:1
Dec 03 03:28:04.408 INFO [stderr]   |
Dec 03 03:28:04.408 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 03 03:28:04.408 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 03:28:04.408 INFO [stderr] 
Dec 03 03:28:04.419 INFO [stderr] error: aborting due to previous error
Dec 03 03:28:04.419 INFO [stderr] 
Dec 03 03:28:04.419 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 03:28:04.443 INFO [stderr] error: Could not compile `render-tree`.
Dec 03 03:28:04.443 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 03:28:05.647 INFO [stderr] error: build failed
Dec 03 03:28:05.647 INFO [stderr] su: No module specific data is present
Dec 03 03:28:06.132 INFO running `"docker" "inspect" "f542eafebe2168c342c7df31f133fa122d36c8880e68b5cc4182bbcf92ce3911"`
Dec 03 03:28:06.280 INFO running `"docker" "rm" "-f" "f542eafebe2168c342c7df31f133fa122d36c8880e68b5cc4182bbcf92ce3911"`
Dec 03 03:28:06.432 INFO [stdout] f542eafebe2168c342c7df31f133fa122d36c8880e68b5cc4182bbcf92ce3911