Dec 02 17:54:50.277 INFO testing savefile-0.2.11 against 1.30.1 for beta-1.31-5
Dec 02 17:54:50.277 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 17:54:50.815 INFO [stdout] 6318d516462d666c8aa54a9a5e7ad00bf7d4fae4f2337370fd5b6046a19b5e3c
Dec 02 17:54:50.821 INFO running `"docker" "start" "-a" "6318d516462d666c8aa54a9a5e7ad00bf7d4fae4f2337370fd5b6046a19b5e3c"`
Dec 02 17:54:52.275 INFO [stderr] usermod: no changes
Dec 02 17:54:52.371 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 02 17:54:59.587 INFO [stderr]    Compiling quote v0.6.10
Dec 02 17:55:03.916 INFO [stderr]    Compiling syn v0.15.22
Dec 02 17:55:17.738 INFO [stderr]    Compiling synstructure v0.10.1
Dec 02 17:55:23.911 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 02 17:55:29.323 INFO [stderr]    Compiling failure v0.1.3
Dec 02 17:55:30.821 INFO [stderr]    Compiling savefile v0.2.11 (/source)
Dec 02 17:55:30.911 INFO [stderr] warning: unknown lint: `unit_arg`
Dec 02 17:55:30.911 INFO [stderr]    --> src/lib.rs:601:9
Dec 02 17:55:30.911 INFO [stderr]     |
Dec 02 17:55:30.911 INFO [stderr] 601 | #[allow(unit_arg)]
Dec 02 17:55:30.911 INFO [stderr]     |         ^^^^^^^^
Dec 02 17:55:30.911 INFO [stderr]     |
Dec 02 17:55:30.911 INFO [stderr]     = note: #[warn(unknown_lints)] on by default
Dec 02 17:55:30.911 INFO [stderr] 
Dec 02 17:55:30.911 INFO [stderr] warning: unknown lint: `new_without_default_derive`
Dec 02 17:55:30.911 INFO [stderr]     --> src/lib.rs:1582:9
Dec 02 17:55:30.911 INFO [stderr]      |
Dec 02 17:55:30.911 INFO [stderr] 1582 | #[allow(new_without_default_derive)] //You should never need to instantiate Removed yourself anyway.
Dec 02 17:55:30.911 INFO [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:30.911 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 1 | #![feature(alloc)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 2 | #![feature(allocator_api)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:4:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 4 | #![feature(test)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:5:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 5 | #![feature(specialization)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:6:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 6 | #![feature(attr_literals)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:7:1
Dec 02 17:55:32.163 INFO [stderr]   |
Dec 02 17:55:32.163 INFO [stderr] 7 | #![feature(core_intrinsics)]
Dec 02 17:55:32.163 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.163 INFO [stderr] 
Dec 02 17:55:32.163 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:55:32.163 INFO [stderr]  --> src/lib.rs:8:1
Dec 02 17:55:32.164 INFO [stderr]   |
Dec 02 17:55:32.164 INFO [stderr] 8 | #![feature(integer_atomics)]
Dec 02 17:55:32.164 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:55:32.164 INFO [stderr] 
Dec 02 17:55:32.166 INFO [stderr] error: aborting due to 7 previous errors
Dec 02 17:55:32.166 INFO [stderr] 
Dec 02 17:55:32.166 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:55:32.180 INFO [stderr] error: Could not compile `savefile`.
Dec 02 17:55:32.180 INFO [stderr] 
Dec 02 17:55:32.180 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 17:55:32.181 INFO [stderr] su: No module specific data is present
Dec 02 17:55:32.931 INFO running `"docker" "inspect" "6318d516462d666c8aa54a9a5e7ad00bf7d4fae4f2337370fd5b6046a19b5e3c"`
Dec 02 17:55:33.355 INFO running `"docker" "rm" "-f" "6318d516462d666c8aa54a9a5e7ad00bf7d4fae4f2337370fd5b6046a19b5e3c"`
Dec 02 17:55:33.649 INFO [stdout] 6318d516462d666c8aa54a9a5e7ad00bf7d4fae4f2337370fd5b6046a19b5e3c