Dec 02 16:37:58.640 INFO testing slablit-0.2.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 16:37:58.640 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 02 16:37:59.236 INFO [stdout] 71dd79d7ab1c1f488f4553b2e0b0d4810dca63c6ffbca594848db2c93e4a725f
Dec 02 16:37:59.238 INFO running `"docker" "start" "-a" "71dd79d7ab1c1f488f4553b2e0b0d4810dca63c6ffbca594848db2c93e4a725f"`
Dec 02 16:38:00.235 INFO [stderr] usermod: no changes
Dec 02 16:38:00.278 INFO [stderr]    Compiling slablit v0.2.1 (/source)
Dec 02 16:38:00.743 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 16:38:00.743 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 16:38:00.743 INFO [stderr]   |
Dec 02 16:38:00.744 INFO [stderr] 1 | #![feature(decl_macro, macro_at_most_once_rep)]
Dec 02 16:38:00.744 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 16:38:00.744 INFO [stderr] 
Dec 02 16:38:00.745 INFO [stderr] error: aborting due to previous error
Dec 02 16:38:00.745 INFO [stderr] 
Dec 02 16:38:00.745 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 16:38:00.751 INFO [stderr] error: Could not compile `slablit`.
Dec 02 16:38:00.751 INFO [stderr] 
Dec 02 16:38:00.751 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 16:38:00.753 INFO [stderr] su: No module specific data is present
Dec 02 16:38:01.121 INFO running `"docker" "inspect" "71dd79d7ab1c1f488f4553b2e0b0d4810dca63c6ffbca594848db2c93e4a725f"`
Dec 02 16:38:01.265 INFO running `"docker" "rm" "-f" "71dd79d7ab1c1f488f4553b2e0b0d4810dca63c6ffbca594848db2c93e4a725f"`
Dec 02 16:38:01.412 INFO [stdout] 71dd79d7ab1c1f488f4553b2e0b0d4810dca63c6ffbca594848db2c93e4a725f