Dec 02 19:19:32.289 INFO testing runtime-fmt-0.3.0 against 1.30.1 for beta-1.31-5
Dec 02 19:19:32.289 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 02 19:19:32.495 INFO [stdout] 158dea05c3b83036bb7a484498a175ae7245b21d3397b3e9a542ba3c54515156
Dec 02 19:19:32.497 INFO running `"docker" "start" "-a" "158dea05c3b83036bb7a484498a175ae7245b21d3397b3e9a542ba3c54515156"`
Dec 02 19:19:33.151 INFO [stderr] usermod: no changes
Dec 02 19:19:33.195 INFO [stderr]    Compiling runtime-fmt v0.3.0 (/source)
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:17:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 17 | #![feature(fmt_internals)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:18:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 18 | #![feature(conservative_impl_trait)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:19:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 19 | #![feature(specialization)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:20:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 20 | #![feature(print_internals)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:21:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 21 | #![feature(rustc_private)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.723 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 19:19:33.723 INFO [stderr]   --> src/lib.rs:22:1
Dec 02 19:19:33.723 INFO [stderr]    |
Dec 02 19:19:33.723 INFO [stderr] 22 | #![feature(try_from)]
Dec 02 19:19:33.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 02 19:19:33.723 INFO [stderr] 
Dec 02 19:19:33.727 INFO [stderr] error: aborting due to 6 previous errors
Dec 02 19:19:33.727 INFO [stderr] 
Dec 02 19:19:33.727 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 19:19:33.730 INFO [stderr] error: Could not compile `runtime-fmt`.
Dec 02 19:19:33.730 INFO [stderr] 
Dec 02 19:19:33.730 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 19:19:33.731 INFO [stderr] su: No module specific data is present
Dec 02 19:19:34.048 INFO running `"docker" "inspect" "158dea05c3b83036bb7a484498a175ae7245b21d3397b3e9a542ba3c54515156"`
Dec 02 19:19:34.138 INFO running `"docker" "rm" "-f" "158dea05c3b83036bb7a484498a175ae7245b21d3397b3e9a542ba3c54515156"`
Dec 02 19:19:34.243 INFO [stdout] 158dea05c3b83036bb7a484498a175ae7245b21d3397b3e9a542ba3c54515156