Dec 02 20:08:26.862 INFO testing rls-span-0.4.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 20:08:26.862 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 20:08:27.465 INFO [stdout] 7775f92df8bed0dd9fcc4fe5444ad5ffe41c6de411200c9beec18b894d66c478
Dec 02 20:08:27.467 INFO running `"docker" "start" "-a" "7775f92df8bed0dd9fcc4fe5444ad5ffe41c6de411200c9beec18b894d66c478"`
Dec 02 20:08:28.729 INFO [stderr] usermod: no changes
Dec 02 20:08:28.843 INFO [stderr]    Compiling rls-span v0.4.0 (/source)
Dec 02 20:08:29.387 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:08:29.387 INFO [stderr]   --> src/lib.rs:12:1
Dec 02 20:08:29.387 INFO [stderr]    |
Dec 02 20:08:29.387 INFO [stderr] 12 | #![feature(proc_macro)]
Dec 02 20:08:29.387 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:08:29.387 INFO [stderr] 
Dec 02 20:08:29.387 INFO [stderr] error: aborting due to previous error
Dec 02 20:08:29.387 INFO [stderr] 
Dec 02 20:08:29.387 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:08:29.402 INFO [stderr] error: Could not compile `rls-span`.
Dec 02 20:08:29.403 INFO [stderr] 
Dec 02 20:08:29.403 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:08:29.403 INFO [stderr] su: No module specific data is present
Dec 02 20:08:30.144 INFO running `"docker" "inspect" "7775f92df8bed0dd9fcc4fe5444ad5ffe41c6de411200c9beec18b894d66c478"`
Dec 02 20:08:30.471 INFO running `"docker" "rm" "-f" "7775f92df8bed0dd9fcc4fe5444ad5ffe41c6de411200c9beec18b894d66c478"`
Dec 02 20:08:30.743 INFO [stdout] 7775f92df8bed0dd9fcc4fe5444ad5ffe41c6de411200c9beec18b894d66c478