Dec 03 11:26:11.262 INFO testing fs2-0.4.3 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 11:26:11.262 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:26:11.427 INFO [stdout] 0e45e22c379ad8f344ed7a9258b1acb3fd85fb6f20e73ce15052bcb1cb935f5d
Dec 03 11:26:11.430 INFO running `"docker" "start" "-a" "0e45e22c379ad8f344ed7a9258b1acb3fd85fb6f20e73ce15052bcb1cb935f5d"`
Dec 03 11:26:12.019 INFO [stderr] usermod: no changes
Dec 03 11:26:12.111 INFO [stderr]    Compiling fs2 v0.4.3 (/source)
Dec 03 11:26:13.228 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Dec 03 11:26:13.239 INFO [stderr] su: No module specific data is present
Dec 03 11:26:14.577 INFO running `"docker" "inspect" "0e45e22c379ad8f344ed7a9258b1acb3fd85fb6f20e73ce15052bcb1cb935f5d"`
Dec 03 11:26:14.995 INFO running `"docker" "rm" "-f" "0e45e22c379ad8f344ed7a9258b1acb3fd85fb6f20e73ce15052bcb1cb935f5d"`
Dec 03 11:26:15.346 INFO [stdout] 0e45e22c379ad8f344ed7a9258b1acb3fd85fb6f20e73ce15052bcb1cb935f5d
Dec 03 11:26:15.353 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:26:15.790 INFO [stdout] e8129d2d5d109c448684f5734520bdc7dffc487eb3fac6d000a016a8bddbe2db
Dec 03 11:26:15.803 INFO running `"docker" "start" "-a" "e8129d2d5d109c448684f5734520bdc7dffc487eb3fac6d000a016a8bddbe2db"`
Dec 03 11:26:16.987 INFO [stderr] usermod: no changes
Dec 03 11:26:17.066 INFO [stderr]    Compiling fs2 v0.4.3 (/source)
Dec 03 11:26:17.928 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:26:17.928 INFO [stderr]  --> src/lib.rs:5:19
Dec 03 11:26:17.928 INFO [stderr]   |
Dec 03 11:26:17.928 INFO [stderr] 5 | #![cfg_attr(test, feature(test))]
Dec 03 11:26:17.928 INFO [stderr]   |                   ^^^^^^^^^^^^^
Dec 03 11:26:17.928 INFO [stderr] 
Dec 03 11:26:17.928 INFO [stderr] error: aborting due to previous error
Dec 03 11:26:17.928 INFO [stderr] 
Dec 03 11:26:17.928 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:26:17.932 INFO [stderr] error: Could not compile `fs2`.
Dec 03 11:26:17.932 INFO [stderr] 
Dec 03 11:26:17.932 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:26:17.934 INFO [stderr] su: No module specific data is present
Dec 03 11:26:18.489 INFO running `"docker" "inspect" "e8129d2d5d109c448684f5734520bdc7dffc487eb3fac6d000a016a8bddbe2db"`
Dec 03 11:26:18.771 INFO running `"docker" "rm" "-f" "e8129d2d5d109c448684f5734520bdc7dffc487eb3fac6d000a016a8bddbe2db"`
Dec 03 11:26:19.085 INFO [stdout] e8129d2d5d109c448684f5734520bdc7dffc487eb3fac6d000a016a8bddbe2db