Dec 03 18:22:21.572 INFO testing bigint-4.4.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 18:22:21.573 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 03 18:22:21.936 INFO [stdout] 50617671f6ea9b2f86ca8d53d36af11c358586ec3e619fff1a5237421cfc8598
Dec 03 18:22:21.940 INFO running `"docker" "start" "-a" "50617671f6ea9b2f86ca8d53d36af11c358586ec3e619fff1a5237421cfc8598"`
Dec 03 18:22:23.066 INFO [stderr] usermod: no changes
Dec 03 18:22:23.164 INFO [stderr]    Compiling bigint v4.4.1 (/source)
Dec 03 18:22:27.084 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
Dec 03 18:22:27.089 INFO [stderr] su: No module specific data is present
Dec 03 18:22:27.999 INFO running `"docker" "inspect" "50617671f6ea9b2f86ca8d53d36af11c358586ec3e619fff1a5237421cfc8598"`
Dec 03 18:22:28.236 INFO running `"docker" "rm" "-f" "50617671f6ea9b2f86ca8d53d36af11c358586ec3e619fff1a5237421cfc8598"`
Dec 03 18:22:28.542 INFO [stdout] 50617671f6ea9b2f86ca8d53d36af11c358586ec3e619fff1a5237421cfc8598
Dec 03 18:22:28.549 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 test --frozen --no-run" "-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 18:22:29.028 INFO [stdout] a81e7365c07bbdc2602216e4db6b8aefb1a6f328a3f10d772ce07d06927af0f3
Dec 03 18:22:29.034 INFO running `"docker" "start" "-a" "a81e7365c07bbdc2602216e4db6b8aefb1a6f328a3f10d772ce07d06927af0f3"`
Dec 03 18:22:30.203 INFO [stderr] usermod: no changes
Dec 03 18:22:30.371 INFO [stderr]    Compiling bigint v4.4.1 (/source)
Dec 03 18:22:31.117 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 18:22:31.118 INFO [stderr]   --> src/lib.rs:12:44
Dec 03 18:22:31.118 INFO [stderr]    |
Dec 03 18:22:31.118 INFO [stderr] 12 | #![cfg_attr(all(not(feature="std"), test), feature(alloc))]
Dec 03 18:22:31.118 INFO [stderr]    |                                            ^^^^^^^^^^^^^^
Dec 03 18:22:31.123 INFO [stderr] 
Dec 03 18:22:31.127 INFO [stderr] error: aborting due to previous error
Dec 03 18:22:31.127 INFO [stderr] 
Dec 03 18:22:31.127 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 18:22:31.137 INFO [stderr] error: Could not compile `bigint`.
Dec 03 18:22:31.137 INFO [stderr] 
Dec 03 18:22:31.137 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 18:22:31.143 INFO [stderr] su: No module specific data is present
Dec 03 18:22:31.684 INFO running `"docker" "inspect" "a81e7365c07bbdc2602216e4db6b8aefb1a6f328a3f10d772ce07d06927af0f3"`
Dec 03 18:22:31.882 INFO running `"docker" "rm" "-f" "a81e7365c07bbdc2602216e4db6b8aefb1a6f328a3f10d772ce07d06927af0f3"`
Dec 03 18:22:32.107 INFO [stdout] a81e7365c07bbdc2602216e4db6b8aefb1a6f328a3f10d772ce07d06927af0f3