Dec 19 16:10:59.480 INFO checking hayatoito/icfp2017 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:10:59.480 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/hayatoito/icfp2017:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:10:59.896 INFO [stdout] 000e2115cff69ce55e96805db74e15ece3871789d6372c0404e3ff699408413a
Dec 19 16:10:59.902 INFO running `"docker" "start" "-a" "000e2115cff69ce55e96805db74e15ece3871789d6372c0404e3ff699408413a"`
Dec 19 16:11:01.143 INFO [stderr]     Checking num_cpus v0.2.13
Dec 19 16:11:01.143 INFO [stderr]     Checking loggerv v0.3.0
Dec 19 16:11:01.143 INFO [stderr]     Checking bincode v0.8.0
Dec 19 16:11:01.160 INFO [stderr]     Checking rayon-core v1.2.1
Dec 19 16:11:01.170 INFO [stderr]     Checking cookie v0.2.5
Dec 19 16:11:01.170 INFO [stderr]     Checking pbr v1.0.0
Dec 19 16:11:01.172 INFO [stderr]     Checking chrono v0.2.25
Dec 19 16:11:03.166 INFO [stderr]     Checking hyper v0.9.18
Dec 19 16:11:04.096 INFO [stderr]     Checking rayon v0.8.2
Dec 19 16:11:08.178 INFO [stderr]     Checking iron v0.4.0
Dec 19 16:11:08.413 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::BeforeMiddleware` for type `std::sync::Arc<_>`:
Dec 19 16:11:08.413 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.4.0/src/middleware/mod.rs:339:1
Dec 19 16:11:08.413 INFO [stderr]     |
Dec 19 16:11:08.413 INFO [stderr] 322 | / impl<F> BeforeMiddleware for F
Dec 19 16:11:08.413 INFO [stderr] 323 | | where F: Send + Sync + 'static + Fn(&mut Request) -> IronResult<()> {
Dec 19 16:11:08.413 INFO [stderr] 324 | |     fn before(&self, req: &mut Request) -> IronResult<()> {
Dec 19 16:11:08.413 INFO [stderr] 325 | |         (*self)(req)
Dec 19 16:11:08.413 INFO [stderr] 326 | |     }
Dec 19 16:11:08.413 INFO [stderr] 327 | | }
Dec 19 16:11:08.414 INFO [stderr]     | |_- first implementation here
Dec 19 16:11:08.414 INFO [stderr] ...
Dec 19 16:11:08.414 INFO [stderr] 339 |   impl<T> BeforeMiddleware for Arc<T> where T: BeforeMiddleware {
Dec 19 16:11:08.414 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr]     |
Dec 19 16:11:08.414 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr] 
Dec 19 16:11:08.414 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::AfterMiddleware` for type `std::sync::Arc<_>`:
Dec 19 16:11:08.414 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.4.0/src/middleware/mod.rs:366:1
Dec 19 16:11:08.414 INFO [stderr]     |
Dec 19 16:11:08.414 INFO [stderr] 349 | / impl<F> AfterMiddleware for F
Dec 19 16:11:08.414 INFO [stderr] 350 | | where F: Send + Sync + 'static + Fn(&mut Request, Response) -> IronResult<Response> {
Dec 19 16:11:08.414 INFO [stderr] 351 | |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
Dec 19 16:11:08.414 INFO [stderr] 352 | |         (*self)(req, res)
Dec 19 16:11:08.414 INFO [stderr] 353 | |     }
Dec 19 16:11:08.414 INFO [stderr] 354 | | }
Dec 19 16:11:08.414 INFO [stderr]     | |_- first implementation here
Dec 19 16:11:08.414 INFO [stderr] ...
Dec 19 16:11:08.414 INFO [stderr] 366 |   impl<T> AfterMiddleware for Arc<T> where T: AfterMiddleware {
Dec 19 16:11:08.414 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr]     |
Dec 19 16:11:08.414 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 16:11:08.414 INFO [stderr] 
Dec 19 16:11:08.444 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 16:11:08.444 INFO [stderr] 
Dec 19 16:11:08.473 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 16:11:08.474 INFO [stderr] error: Could not compile `iron`.
Dec 19 16:11:08.474 INFO [stderr] 
Dec 19 16:11:08.474 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 16:11:08.978 INFO running `"docker" "inspect" "000e2115cff69ce55e96805db74e15ece3871789d6372c0404e3ff699408413a"`
Dec 19 16:11:09.138 INFO running `"docker" "rm" "-f" "000e2115cff69ce55e96805db74e15ece3871789d6372c0404e3ff699408413a"`
Dec 19 16:11:09.247 INFO [stdout] 000e2115cff69ce55e96805db74e15ece3871789d6372c0404e3ff699408413a