Dec 03 18:01:19.456 INFO testing bitwise-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 18:01:19.456 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 18:01:19.935 INFO [stdout] 8646b9b8d33ab3498d1b2c7829f79aa78e3b24438f74183aa301e7b460d05598
Dec 03 18:01:19.937 INFO running `"docker" "start" "-a" "8646b9b8d33ab3498d1b2c7829f79aa78e3b24438f74183aa301e7b460d05598"`
Dec 03 18:01:21.602 INFO [stderr] usermod: no changes
Dec 03 18:01:21.659 INFO [stderr] warning: `panic` setting is ignored for `bench` profile
Dec 03 18:01:21.671 INFO [stderr]    Compiling bitwise v0.1.1 (/source)
Dec 03 18:01:23.431 INFO [stderr] error[E0658]: specialization is unstable (see issue #31844)
Dec 03 18:01:23.431 INFO [stderr]   --> src/word/to_word.rs:58:5
Dec 03 18:01:23.431 INFO [stderr]    |
Dec 03 18:01:23.431 INFO [stderr] 58 | /     default fn from(x: T) -> Self {
Dec 03 18:01:23.431 INFO [stderr] 59 | |         ToWord::to(x)
Dec 03 18:01:23.431 INFO [stderr] 60 | |     }
Dec 03 18:01:23.431 INFO [stderr]    | |_____^
Dec 03 18:01:23.431 INFO [stderr] 
Dec 03 18:01:23.447 INFO [stderr] error: aborting due to previous error
Dec 03 18:01:23.447 INFO [stderr] 
Dec 03 18:01:23.447 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 03 18:01:23.459 INFO [stderr] error: Could not compile `bitwise`.
Dec 03 18:01:23.459 INFO [stderr] 
Dec 03 18:01:23.459 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 18:01:23.461 INFO [stderr] su: No module specific data is present
Dec 03 18:01:24.377 INFO running `"docker" "inspect" "8646b9b8d33ab3498d1b2c7829f79aa78e3b24438f74183aa301e7b460d05598"`
Dec 03 18:01:24.647 INFO running `"docker" "rm" "-f" "8646b9b8d33ab3498d1b2c7829f79aa78e3b24438f74183aa301e7b460d05598"`
Dec 03 18:01:24.915 INFO [stdout] 8646b9b8d33ab3498d1b2c7829f79aa78e3b24438f74183aa301e7b460d05598