Dec 18 10:32:30.365 INFO checking tangle-0.4.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:32:30.366 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/tangle/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:32:30.720 INFO [stdout] e6be34d5fb6bd89fa526cdbbbb0802aacf0cd8cf1d09e0ff95a2d70e5f227ddc
Dec 18 10:32:30.728 INFO running `"docker" "start" "-a" "e6be34d5fb6bd89fa526cdbbbb0802aacf0cd8cf1d09e0ff95a2d70e5f227ddc"`
Dec 18 10:32:32.068 INFO [stderr]     Checking tangle v0.4.0 (/opt/crater/workdir)
Dec 18 10:32:32.531 INFO [stderr] warning: unused import: `std::thread`
Dec 18 10:32:32.531 INFO [stderr]  --> src/lib.rs:7:5
Dec 18 10:32:32.531 INFO [stderr]   |
Dec 18 10:32:32.531 INFO [stderr] 7 | use std::thread;
Dec 18 10:32:32.531 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 10:32:32.531 INFO [stderr]   |
Dec 18 10:32:32.531 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 10:32:32.531 INFO [stderr] 
Dec 18 10:32:32.550 INFO [stderr] warning: unused import: `std::convert`
Dec 18 10:32:32.550 INFO [stderr]   --> src/lib.rs:10:5
Dec 18 10:32:32.550 INFO [stderr]    |
Dec 18 10:32:32.550 INFO [stderr] 10 | use std::convert;
Dec 18 10:32:32.550 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 10:32:32.550 INFO [stderr] 
Dec 18 10:32:32.550 INFO [stderr] error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Dec 18 10:32:32.550 INFO [stderr]    --> src/lib.rs:178:9
Dec 18 10:32:32.550 INFO [stderr]     |
Dec 18 10:32:32.550 INFO [stderr] 178 | impl<T, E=()> Future<T, E>
Dec 18 10:32:32.550 INFO [stderr]     |         ^
Dec 18 10:32:32.550 INFO [stderr]     |
Dec 18 10:32:32.550 INFO [stderr]     = note: #[deny(invalid_type_param_default)] on by default
Dec 18 10:32:32.550 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 18 10:32:32.550 INFO [stderr]     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Dec 18 10:32:32.550 INFO [stderr] 
Dec 18 10:32:32.550 INFO [stderr] error: aborting due to previous error
Dec 18 10:32:32.550 INFO [stderr] 
Dec 18 10:32:32.560 INFO [stderr] error: Could not compile `tangle`.
Dec 18 10:32:32.560 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 10:32:32.601 INFO [stderr] warning: unused import: `std::thread`
Dec 18 10:32:32.601 INFO [stderr]  --> src/lib.rs:7:5
Dec 18 10:32:32.601 INFO [stderr]   |
Dec 18 10:32:32.601 INFO [stderr] 7 | use std::thread;
Dec 18 10:32:32.601 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 10:32:32.601 INFO [stderr]   |
Dec 18 10:32:32.601 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 10:32:32.601 INFO [stderr] 
Dec 18 10:32:32.601 INFO [stderr] warning: unused import: `std::convert`
Dec 18 10:32:32.601 INFO [stderr]   --> src/lib.rs:10:5
Dec 18 10:32:32.601 INFO [stderr]    |
Dec 18 10:32:32.602 INFO [stderr] 10 | use std::convert;
Dec 18 10:32:32.602 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 10:32:32.602 INFO [stderr] 
Dec 18 10:32:32.602 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 18 10:32:32.602 INFO [stderr]    --> src/lib.rs:368:36
Dec 18 10:32:32.602 INFO [stderr]     |
Dec 18 10:32:32.602 INFO [stderr] 368 |     use std::sync::mpsc::{channel, Receiver, Sender};
Dec 18 10:32:32.602 INFO [stderr]     |                                    ^^^^^^^^  ^^^^^^
Dec 18 10:32:32.602 INFO [stderr] 
Dec 18 10:32:32.612 INFO [stderr] error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Dec 18 10:32:32.612 INFO [stderr]    --> src/lib.rs:178:9
Dec 18 10:32:32.612 INFO [stderr]     |
Dec 18 10:32:32.612 INFO [stderr] 178 | impl<T, E=()> Future<T, E>
Dec 18 10:32:32.612 INFO [stderr]     |         ^
Dec 18 10:32:32.612 INFO [stderr]     |
Dec 18 10:32:32.612 INFO [stderr]     = note: #[deny(invalid_type_param_default)] on by default
Dec 18 10:32:32.612 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 18 10:32:32.612 INFO [stderr]     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Dec 18 10:32:32.612 INFO [stderr] 
Dec 18 10:32:32.612 INFO [stderr] error: aborting due to previous error
Dec 18 10:32:32.612 INFO [stderr] 
Dec 18 10:32:32.641 INFO [stderr] error: Could not compile `tangle`.
Dec 18 10:32:32.641 INFO [stderr] 
Dec 18 10:32:32.641 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 10:32:33.456 INFO running `"docker" "inspect" "e6be34d5fb6bd89fa526cdbbbb0802aacf0cd8cf1d09e0ff95a2d70e5f227ddc"`
Dec 18 10:32:33.732 INFO running `"docker" "rm" "-f" "e6be34d5fb6bd89fa526cdbbbb0802aacf0cd8cf1d09e0ff95a2d70e5f227ddc"`
Dec 18 10:32:34.099 INFO [stdout] e6be34d5fb6bd89fa526cdbbbb0802aacf0cd8cf1d09e0ff95a2d70e5f227ddc