Dec 02 17:54:31.151 INFO testing savefile-derive-0.2.11 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 17:54:31.151 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 02 17:54:31.495 INFO [stdout] c4a6fb3861adc4c25681f388856bfd0aa3379e6fb221e2b3e2010879abadef5f
Dec 02 17:54:31.496 INFO running `"docker" "start" "-a" "c4a6fb3861adc4c25681f388856bfd0aa3379e6fb221e2b3e2010879abadef5f"`
Dec 02 17:54:32.838 INFO [stderr] usermod: no changes
Dec 02 17:54:32.915 INFO [stderr]    Compiling syn v0.14.9
Dec 02 17:54:46.029 INFO [stderr]    Compiling savefile-derive v0.2.11 (/source)
Dec 02 17:54:49.503 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 17:54:49.503 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 17:54:49.504 INFO [stderr]   |
Dec 02 17:54:49.504 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 02 17:54:49.504 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:54:49.504 INFO [stderr] 
Dec 02 17:54:49.505 INFO [stderr] error: aborting due to previous error
Dec 02 17:54:49.505 INFO [stderr] 
Dec 02 17:54:49.506 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:54:49.516 INFO [stderr] error: Could not compile `savefile-derive`.
Dec 02 17:54:49.516 INFO [stderr] 
Dec 02 17:54:49.516 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 17:54:49.518 INFO [stderr] su: No module specific data is present
Dec 02 17:54:50.435 INFO running `"docker" "inspect" "c4a6fb3861adc4c25681f388856bfd0aa3379e6fb221e2b3e2010879abadef5f"`
Dec 02 17:54:50.741 INFO running `"docker" "rm" "-f" "c4a6fb3861adc4c25681f388856bfd0aa3379e6fb221e2b3e2010879abadef5f"`
Dec 02 17:54:50.963 INFO [stdout] c4a6fb3861adc4c25681f388856bfd0aa3379e6fb221e2b3e2010879abadef5f