Dec 03 00:29:20.936 INFO testing no-std-net-0.2.2 against 1.30.1 for beta-1.31-5
Dec 03 00:29:20.936 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 00:29:21.139 INFO [stdout] 55e33ec357abb3046441819ade78dab303ec488079a8c5f0e0be9f5066f90757
Dec 03 00:29:21.141 INFO running `"docker" "start" "-a" "55e33ec357abb3046441819ade78dab303ec488079a8c5f0e0be9f5066f90757"`
Dec 03 00:29:21.639 INFO [stderr] usermod: no changes
Dec 03 00:29:21.680 INFO [stderr]    Compiling no-std-net v0.2.2 (/source)
Dec 03 00:29:21.775 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 00:29:21.775 INFO [stderr]   --> src/lib.rs:43:1
Dec 03 00:29:21.775 INFO [stderr]    |
Dec 03 00:29:21.775 INFO [stderr] 43 | #![feature(slice_patterns)]
Dec 03 00:29:21.775 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:29:21.775 INFO [stderr] 
Dec 03 00:29:21.777 INFO [stderr] error: aborting due to previous error
Dec 03 00:29:21.777 INFO [stderr] 
Dec 03 00:29:21.777 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 00:29:21.784 INFO [stderr] error: Could not compile `no-std-net`.
Dec 03 00:29:21.784 INFO [stderr] 
Dec 03 00:29:21.784 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:29:21.784 INFO [stderr] su: No module specific data is present
Dec 03 00:29:22.402 INFO running `"docker" "inspect" "55e33ec357abb3046441819ade78dab303ec488079a8c5f0e0be9f5066f90757"`
Dec 03 00:29:22.655 INFO running `"docker" "rm" "-f" "55e33ec357abb3046441819ade78dab303ec488079a8c5f0e0be9f5066f90757"`
Dec 03 00:29:22.931 INFO [stdout] 55e33ec357abb3046441819ade78dab303ec488079a8c5f0e0be9f5066f90757