Dec 02 21:44:00.576 INFO testing prty-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 21:44:00.576 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 02 21:44:00.899 INFO [stdout] fbcf21eb4fcc259437495129e28b4d2630010b20d8e547d4890257eb9cc0738b
Dec 02 21:44:00.905 INFO running `"docker" "start" "-a" "fbcf21eb4fcc259437495129e28b4d2630010b20d8e547d4890257eb9cc0738b"`
Dec 02 21:44:01.913 INFO [stderr] usermod: no changes
Dec 02 21:44:02.197 INFO [stderr]    Compiling scopeguard v0.2.0
Dec 02 21:44:02.208 INFO [stderr]    Compiling quick-error v0.1.4
Dec 02 21:44:02.219 INFO [stderr]    Compiling compare v0.1.0
Dec 02 21:44:02.219 INFO [stderr]    Compiling prty_bitgraph v0.1.1
Dec 02 21:44:02.219 INFO [stderr]    Compiling libgit2-sys v0.4.6
Dec 02 21:44:02.219 INFO [stderr]    Compiling measure_time v0.6.0
Dec 02 21:44:02.223 INFO [stderr]    Compiling xz2 v0.1.6
Dec 02 21:44:02.231 INFO [stderr]    Compiling quickcheck v0.6.2
Dec 02 21:44:02.509 INFO [stderr]    Compiling map_in_place v0.1.0
Dec 02 21:44:03.931 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 21:44:03.931 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/prty_bitgraph-0.1.1/src/lib.rs:1:1
Dec 02 21:44:03.931 INFO [stderr]   |
Dec 02 21:44:03.931 INFO [stderr] 1 | #![feature(vec_remove_item)]
Dec 02 21:44:03.931 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:44:03.931 INFO [stderr] 
Dec 02 21:44:03.931 INFO [stderr] error: aborting due to previous error
Dec 02 21:44:03.931 INFO [stderr] 
Dec 02 21:44:03.931 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 21:44:03.935 INFO [stderr] error: Could not compile `prty_bitgraph`.
Dec 02 21:44:03.935 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 21:44:08.236 INFO [stderr] error: build failed
Dec 02 21:44:08.237 INFO [stderr] su: No module specific data is present
Dec 02 21:44:08.753 INFO running `"docker" "inspect" "fbcf21eb4fcc259437495129e28b4d2630010b20d8e547d4890257eb9cc0738b"`
Dec 02 21:44:09.021 INFO running `"docker" "rm" "-f" "fbcf21eb4fcc259437495129e28b4d2630010b20d8e547d4890257eb9cc0738b"`
Dec 02 21:44:09.255 INFO [stdout] fbcf21eb4fcc259437495129e28b4d2630010b20d8e547d4890257eb9cc0738b