Dec 03 00:01:16.778 INFO testing object-space-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 00:01:16.778 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 00:01:16.991 INFO [stdout] 5bcf9ab4875f66ce9868b5802e2ddde1ae6cd7855a4719d3041573f5c7f6e93f
Dec 03 00:01:16.996 INFO running `"docker" "start" "-a" "5bcf9ab4875f66ce9868b5802e2ddde1ae6cd7855a4719d3041573f5c7f6e93f"`
Dec 03 00:01:17.991 INFO [stderr] usermod: no changes
Dec 03 00:01:18.124 INFO [stderr]    Compiling chashmap v2.2.0
Dec 03 00:01:19.387 INFO [stderr]    Compiling object-space v0.1.1 (/source)
Dec 03 00:01:20.738 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 00:01:20.738 INFO [stderr]    --> src/lib.rs:134:1
Dec 03 00:01:20.738 INFO [stderr]     |
Dec 03 00:01:20.738 INFO [stderr] 134 | #![feature(collections_range)]
Dec 03 00:01:20.738 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:01:20.738 INFO [stderr] 
Dec 03 00:01:20.743 INFO [stderr] error: aborting due to previous error
Dec 03 00:01:20.743 INFO [stderr] 
Dec 03 00:01:20.743 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 00:01:20.757 INFO [stderr] error: Could not compile `object-space`.
Dec 03 00:01:20.757 INFO [stderr] 
Dec 03 00:01:20.757 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:01:20.760 INFO [stderr] su: No module specific data is present
Dec 03 00:01:21.172 INFO running `"docker" "inspect" "5bcf9ab4875f66ce9868b5802e2ddde1ae6cd7855a4719d3041573f5c7f6e93f"`
Dec 03 00:01:21.267 INFO running `"docker" "rm" "-f" "5bcf9ab4875f66ce9868b5802e2ddde1ae6cd7855a4719d3041573f5c7f6e93f"`
Dec 03 00:01:21.365 INFO [stdout] 5bcf9ab4875f66ce9868b5802e2ddde1ae6cd7855a4719d3041573f5c7f6e93f