Dec 02 12:31:26.501 INFO testing un_algebra-0.1.4 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 12:31:26.501 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 12:31:26.787 INFO [stdout] 354549b54eba161ee1a4c2d1173e15b8c32db490fbeaf37376954bb97e06e7eb
Dec 02 12:31:26.795 INFO running `"docker" "start" "-a" "354549b54eba161ee1a4c2d1173e15b8c32db490fbeaf37376954bb97e06e7eb"`
Dec 02 12:31:27.264 INFO [stderr] usermod: no changes
Dec 02 12:31:27.378 INFO [stderr]    Compiling float-cmp v0.4.0
Dec 02 12:31:27.382 INFO [stderr]    Compiling wait-timeout v0.1.5
Dec 02 12:31:27.382 INFO [stderr]    Compiling rand v0.5.5
Dec 02 12:31:28.981 INFO [stderr]    Compiling rusty-fork v0.2.1
Dec 02 12:31:32.423 INFO [stderr]    Compiling proptest v0.8.7
Dec 02 12:31:47.819 INFO [stderr]    Compiling un_algebra v0.1.4 (/source)
Dec 02 12:31:49.627 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 12:31:49.628 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 12:31:49.628 INFO [stderr]   |
Dec 02 12:31:49.628 INFO [stderr] 1 | #![feature(external_doc)]
Dec 02 12:31:49.628 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 12:31:49.628 INFO [stderr] 
Dec 02 12:31:49.633 INFO [stderr] error: aborting due to previous error
Dec 02 12:31:49.633 INFO [stderr] 
Dec 02 12:31:49.633 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 12:31:49.642 INFO [stderr] error: Could not compile `un_algebra`.
Dec 02 12:31:49.643 INFO [stderr] 
Dec 02 12:31:49.643 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 12:31:49.645 INFO [stderr] su: No module specific data is present
Dec 02 12:31:50.210 INFO running `"docker" "inspect" "354549b54eba161ee1a4c2d1173e15b8c32db490fbeaf37376954bb97e06e7eb"`
Dec 02 12:31:50.396 INFO running `"docker" "rm" "-f" "354549b54eba161ee1a4c2d1173e15b8c32db490fbeaf37376954bb97e06e7eb"`
Dec 02 12:31:50.469 INFO [stdout] 354549b54eba161ee1a4c2d1173e15b8c32db490fbeaf37376954bb97e06e7eb
