Dec 19 09:44:53.477 INFO checking rust-kr/rust-kr.org against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:44:53.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/rust-kr/rust-kr.org:/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 09:44:54.046 INFO [stdout] 420394a22abaa459e2b56fe7ee0faea356396ad06920240ceaea9a33c52fae9d
Dec 19 09:44:54.049 INFO running `"docker" "start" "-a" "420394a22abaa459e2b56fe7ee0faea356396ad06920240ceaea9a33c52fae9d"`
Dec 19 09:44:56.107 INFO [stderr]    Compiling pulldown-cmark v0.2.0
Dec 19 09:44:56.107 INFO [stderr]     Checking sequence_trie v0.3.6
Dec 19 09:44:56.124 INFO [stderr]     Checking route-recognizer v0.1.12
Dec 19 09:44:56.143 INFO [stderr]    Compiling syn v0.14.9
Dec 19 09:44:56.144 INFO [stderr]    Compiling mime_guess v1.8.6
Dec 19 09:45:03.175 INFO [stderr]     Checking iron v0.6.0
Dec 19 09:45:03.704 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::BeforeMiddleware` for type `std::sync::Arc<_>`:
Dec 19 09:45:03.704 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.6.0/src/middleware/mod.rs:416:1
Dec 19 09:45:03.704 INFO [stderr]     |
Dec 19 09:45:03.705 INFO [stderr] 399 | / impl<F> BeforeMiddleware for F
Dec 19 09:45:03.705 INFO [stderr] 400 | | where F: Send + Sync + 'static + Fn(&mut Request) -> IronResult<()> {
Dec 19 09:45:03.705 INFO [stderr] 401 | |     fn before(&self, req: &mut Request) -> IronResult<()> {
Dec 19 09:45:03.705 INFO [stderr] 402 | |         (*self)(req)
Dec 19 09:45:03.705 INFO [stderr] 403 | |     }
Dec 19 09:45:03.705 INFO [stderr] 404 | | }
Dec 19 09:45:03.705 INFO [stderr]     | |_- first implementation here
Dec 19 09:45:03.705 INFO [stderr] ...
Dec 19 09:45:03.705 INFO [stderr] 416 |   impl<T> BeforeMiddleware for Arc<T> where T: BeforeMiddleware {
Dec 19 09:45:03.705 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 09:45:03.705 INFO [stderr]     |
Dec 19 09:45:03.705 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 09:45:03.705 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 09:45:03.706 INFO [stderr] 
Dec 19 09:45:03.706 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::AfterMiddleware` for type `std::sync::Arc<_>`:
Dec 19 09:45:03.706 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.6.0/src/middleware/mod.rs:443:1
Dec 19 09:45:03.706 INFO [stderr]     |
Dec 19 09:45:03.706 INFO [stderr] 426 | / impl<F> AfterMiddleware for F
Dec 19 09:45:03.706 INFO [stderr] 427 | | where F: Send + Sync + 'static + Fn(&mut Request, Response) -> IronResult<Response> {
Dec 19 09:45:03.706 INFO [stderr] 428 | |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
Dec 19 09:45:03.706 INFO [stderr] 429 | |         (*self)(req, res)
Dec 19 09:45:03.706 INFO [stderr] 430 | |     }
Dec 19 09:45:03.706 INFO [stderr] 431 | | }
Dec 19 09:45:03.707 INFO [stderr]     | |_- first implementation here
Dec 19 09:45:03.707 INFO [stderr] ...
Dec 19 09:45:03.707 INFO [stderr] 443 |   impl<T> AfterMiddleware for Arc<T> where T: AfterMiddleware {
Dec 19 09:45:03.707 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 09:45:03.707 INFO [stderr]     |
Dec 19 09:45:03.707 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 09:45:03.707 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 09:45:03.707 INFO [stderr] 
Dec 19 09:45:03.774 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 09:45:03.774 INFO [stderr] 
Dec 19 09:45:03.774 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 09:45:03.786 INFO [stderr] error: Could not compile `iron`.
Dec 19 09:45:03.786 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 09:45:09.756 INFO [stderr] error: build failed
Dec 19 09:45:11.084 INFO running `"docker" "inspect" "420394a22abaa459e2b56fe7ee0faea356396ad06920240ceaea9a33c52fae9d"`
Dec 19 09:45:11.368 INFO running `"docker" "rm" "-f" "420394a22abaa459e2b56fe7ee0faea356396ad06920240ceaea9a33c52fae9d"`
Dec 19 09:45:11.696 INFO [stdout] 420394a22abaa459e2b56fe7ee0faea356396ad06920240ceaea9a33c52fae9d