Dec 05 05:49:53.256 INFO checking tangle-0.4.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 05:49:53.256 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 05:49:53.552 INFO [stdout] 1285a57b1fbe9718a7c433cc8a49826f34206e331c2d874e89b262205a91c96c
Dec 05 05:49:53.554 INFO running `"docker" "start" "-a" "1285a57b1fbe9718a7c433cc8a49826f34206e331c2d874e89b262205a91c96c"`
Dec 05 05:49:54.862 INFO [stderr] usermod: no changes
Dec 05 05:49:54.978 INFO [stderr]     Checking threadpool v1.7.1
Dec 05 05:49:55.559 INFO [stderr]     Checking tangle v0.4.0 (/source)
Dec 05 05:49:56.278 INFO [stderr] warning: unused import: `std::thread`
Dec 05 05:49:56.279 INFO [stderr]  --> src/lib.rs:7:5
Dec 05 05:49:56.279 INFO [stderr]   |
Dec 05 05:49:56.279 INFO [stderr] 7 | use std::thread;
Dec 05 05:49:56.279 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 05:49:56.279 INFO [stderr]   |
Dec 05 05:49:56.279 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 05:49:56.279 INFO [stderr] 
Dec 05 05:49:56.279 INFO [stderr] warning: unused import: `std::convert`
Dec 05 05:49:56.279 INFO [stderr]   --> src/lib.rs:10:5
Dec 05 05:49:56.279 INFO [stderr]    |
Dec 05 05:49:56.279 INFO [stderr] 10 | use std::convert;
Dec 05 05:49:56.279 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 05 05:49:56.279 INFO [stderr] 
Dec 05 05:49:56.279 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 05 05:49:56.279 INFO [stderr]    --> src/lib.rs:368:36
Dec 05 05:49:56.279 INFO [stderr]     |
Dec 05 05:49:56.279 INFO [stderr] 368 |     use std::sync::mpsc::{channel, Receiver, Sender};
Dec 05 05:49:56.279 INFO [stderr]     |                                    ^^^^^^^^  ^^^^^^
Dec 05 05:49:56.279 INFO [stderr] 
Dec 05 05:49:56.279 INFO [stderr] error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Dec 05 05:49:56.279 INFO [stderr]    --> src/lib.rs:178:9
Dec 05 05:49:56.279 INFO [stderr]     |
Dec 05 05:49:56.279 INFO [stderr] 178 | impl<T, E=()> Future<T, E>
Dec 05 05:49:56.279 INFO [stderr]     |         ^
Dec 05 05:49:56.279 INFO [stderr]     |
Dec 05 05:49:56.279 INFO [stderr]     = note: #[deny(invalid_type_param_default)] on by default
Dec 05 05:49:56.279 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 05:49:56.279 INFO [stderr]     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Dec 05 05:49:56.279 INFO [stderr] 
Dec 05 05:49:56.279 INFO [stderr] error: aborting due to previous error
Dec 05 05:49:56.279 INFO [stderr] 
Dec 05 05:49:56.282 INFO [stderr] error: Could not compile `tangle`.
Dec 05 05:49:56.283 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 05 05:49:56.356 INFO [stderr] warning: unused import: `std::thread`
Dec 05 05:49:56.356 INFO [stderr]  --> src/lib.rs:7:5
Dec 05 05:49:56.356 INFO [stderr]   |
Dec 05 05:49:56.356 INFO [stderr] 7 | use std::thread;
Dec 05 05:49:56.356 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 05:49:56.356 INFO [stderr]   |
Dec 05 05:49:56.356 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 05:49:56.356 INFO [stderr] 
Dec 05 05:49:56.356 INFO [stderr] warning: unused import: `std::convert`
Dec 05 05:49:56.356 INFO [stderr]   --> src/lib.rs:10:5
Dec 05 05:49:56.356 INFO [stderr]    |
Dec 05 05:49:56.356 INFO [stderr] 10 | use std::convert;
Dec 05 05:49:56.356 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 05 05:49:56.356 INFO [stderr] 
Dec 05 05:49:56.356 INFO [stderr] error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Dec 05 05:49:56.356 INFO [stderr]    --> src/lib.rs:178:9
Dec 05 05:49:56.356 INFO [stderr]     |
Dec 05 05:49:56.356 INFO [stderr] 178 | impl<T, E=()> Future<T, E>
Dec 05 05:49:56.356 INFO [stderr]     |         ^
Dec 05 05:49:56.356 INFO [stderr]     |
Dec 05 05:49:56.356 INFO [stderr]     = note: #[deny(invalid_type_param_default)] on by default
Dec 05 05:49:56.357 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 05 05:49:56.357 INFO [stderr]     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Dec 05 05:49:56.357 INFO [stderr] 
Dec 05 05:49:56.357 INFO [stderr] error: aborting due to previous error
Dec 05 05:49:56.357 INFO [stderr] 
Dec 05 05:49:56.357 INFO [stderr] error: Could not compile `tangle`.
Dec 05 05:49:56.357 INFO [stderr] 
Dec 05 05:49:56.357 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 05:49:56.357 INFO [stderr] su: No module specific data is present
Dec 05 05:49:57.004 INFO running `"docker" "inspect" "1285a57b1fbe9718a7c433cc8a49826f34206e331c2d874e89b262205a91c96c"`
Dec 05 05:49:57.284 INFO running `"docker" "rm" "-f" "1285a57b1fbe9718a7c433cc8a49826f34206e331c2d874e89b262205a91c96c"`
Dec 05 05:49:57.440 INFO [stdout] 1285a57b1fbe9718a7c433cc8a49826f34206e331c2d874e89b262205a91c96c