Dec 02 12:40:27.345 INFO testing type-info-0.2.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 12:40:27.345 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 12:40:27.628 INFO [stdout] 2938ced7b035706d517fdc7156c84d8a5bd6097c41f258902e7b611266c66571
Dec 02 12:40:27.633 INFO running `"docker" "start" "-a" "2938ced7b035706d517fdc7156c84d8a5bd6097c41f258902e7b611266c66571"`
Dec 02 12:40:28.121 INFO [stderr] usermod: no changes
Dec 02 12:40:28.195 INFO [stderr]    Compiling type-info v0.2.1 (/source)
Dec 02 12:40:28.731 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 12:40:28.731 INFO [stderr]    --> src/lib.rs:107:1
Dec 02 12:40:28.731 INFO [stderr]     |
Dec 02 12:40:28.731 INFO [stderr] 107 | #![feature(const_type_id)]
Dec 02 12:40:28.731 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 12:40:28.731 INFO [stderr] 
Dec 02 12:40:28.731 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 12:40:28.731 INFO [stderr]    --> src/lib.rs:108:1
Dec 02 12:40:28.731 INFO [stderr]     |
Dec 02 12:40:28.731 INFO [stderr] 108 | #![feature(specialization)]
Dec 02 12:40:28.731 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 12:40:28.731 INFO [stderr] 
Dec 02 12:40:28.735 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 12:40:28.735 INFO [stderr] 
Dec 02 12:40:28.735 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 12:40:28.737 INFO [stderr] error: Could not compile `type-info`.
Dec 02 12:40:28.737 INFO [stderr] 
Dec 02 12:40:28.737 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 12:40:28.739 INFO [stderr] su: No module specific data is present
Dec 02 12:40:29.056 INFO running `"docker" "inspect" "2938ced7b035706d517fdc7156c84d8a5bd6097c41f258902e7b611266c66571"`
Dec 02 12:40:29.178 INFO running `"docker" "rm" "-f" "2938ced7b035706d517fdc7156c84d8a5bd6097c41f258902e7b611266c66571"`
Dec 02 12:40:29.290 INFO [stdout] 2938ced7b035706d517fdc7156c84d8a5bd6097c41f258902e7b611266c66571