Dec 03 15:24:40.868 INFO testing conduit-mime-types-0.7.3 against 1.30.1 for beta-1.31-5
Dec 03 15:24:40.868 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/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 +1.30.1 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 15:24:41.336 INFO [stdout] 312c5a2e2b2ad124592dc750d679697130290ddcc7847748947c358fc71db347
Dec 03 15:24:41.339 INFO running `"docker" "start" "-a" "312c5a2e2b2ad124592dc750d679697130290ddcc7847748947c358fc71db347"`
Dec 03 15:24:43.084 INFO [stderr] usermod: no changes
Dec 03 15:24:43.143 INFO [stderr]    Compiling conduit-mime-types v0.7.3 (/source)
Dec 03 15:24:44.823 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
Dec 03 15:24:44.823 INFO [stderr] su: No module specific data is present
Dec 03 15:24:45.695 INFO running `"docker" "inspect" "312c5a2e2b2ad124592dc750d679697130290ddcc7847748947c358fc71db347"`
Dec 03 15:24:45.959 INFO running `"docker" "rm" "-f" "312c5a2e2b2ad124592dc750d679697130290ddcc7847748947c358fc71db347"`
Dec 03 15:24:46.263 INFO [stdout] 312c5a2e2b2ad124592dc750d679697130290ddcc7847748947c358fc71db347
Dec 03 15:24:46.269 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/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 +1.30.1 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 15:24:46.678 INFO [stdout] f6921b6fad153f3508f831fd0295274d45fafd6845a5d327caf3551da42d32e9
Dec 03 15:24:46.687 INFO running `"docker" "start" "-a" "f6921b6fad153f3508f831fd0295274d45fafd6845a5d327caf3551da42d32e9"`
Dec 03 15:24:47.660 INFO [stderr] usermod: no changes
Dec 03 15:24:47.718 INFO [stderr]    Compiling conduit-mime-types v0.7.3 (/source)
Dec 03 15:24:48.471 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 15:24:48.471 INFO [stderr]  --> src/lib.rs:1:19
Dec 03 15:24:48.471 INFO [stderr]   |
Dec 03 15:24:48.471 INFO [stderr] 1 | #![cfg_attr(test, feature(test))]
Dec 03 15:24:48.471 INFO [stderr]   |                   ^^^^^^^^^^^^^^
Dec 03 15:24:48.471 INFO [stderr] 
Dec 03 15:24:48.471 INFO [stderr] error: aborting due to previous error
Dec 03 15:24:48.471 INFO [stderr] 
Dec 03 15:24:48.471 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 15:24:48.488 INFO [stderr] error: Could not compile `conduit-mime-types`.
Dec 03 15:24:48.488 INFO [stderr] 
Dec 03 15:24:48.488 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:24:48.489 INFO [stderr] su: No module specific data is present
Dec 03 15:24:49.061 INFO running `"docker" "inspect" "f6921b6fad153f3508f831fd0295274d45fafd6845a5d327caf3551da42d32e9"`
Dec 03 15:24:49.266 INFO running `"docker" "rm" "-f" "f6921b6fad153f3508f831fd0295274d45fafd6845a5d327caf3551da42d32e9"`
Dec 03 15:24:49.566 INFO [stdout] f6921b6fad153f3508f831fd0295274d45fafd6845a5d327caf3551da42d32e9