Dec 19 16:09:44.942 INFO checking hellertime/opr-mandelbrot-server against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:09:44.942 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/hellertime/opr-mandelbrot-server:/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 16:09:45.324 INFO [stdout] 74b3d2d980e8a9cb561c4aa107b23ecee8a778b9a23676d88ceb5c476dbb056c
Dec 19 16:09:45.332 INFO running `"docker" "start" "-a" "74b3d2d980e8a9cb561c4aa107b23ecee8a778b9a23676d88ceb5c476dbb056c"`
Dec 19 16:09:47.404 INFO [stderr]     Checking hyper v0.10.13
Dec 19 16:09:47.416 INFO [stderr]     Checking enum_primitive v0.1.1
Dec 19 16:09:47.416 INFO [stderr]     Checking num-bigint v0.1.44
Dec 19 16:09:47.448 INFO [stderr]     Checking png v0.7.0
Dec 19 16:09:47.456 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 19 16:09:52.042 INFO [stderr]     Checking num-rational v0.1.42
Dec 19 16:09:52.855 INFO [stderr]     Checking image v0.13.0
Dec 19 16:09:52.855 INFO [stderr]     Checking num v0.1.42
Dec 19 16:09:54.369 INFO [stderr]     Checking iron v0.5.1
Dec 19 16:09:54.860 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::BeforeMiddleware` for type `std::sync::Arc<_>`:
Dec 19 16:09:54.860 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.5.1/src/middleware/mod.rs:339:1
Dec 19 16:09:54.860 INFO [stderr]     |
Dec 19 16:09:54.860 INFO [stderr] 322 | / impl<F> BeforeMiddleware for F
Dec 19 16:09:54.860 INFO [stderr] 323 | | where F: Send + Sync + 'static + Fn(&mut Request) -> IronResult<()> {
Dec 19 16:09:54.860 INFO [stderr] 324 | |     fn before(&self, req: &mut Request) -> IronResult<()> {
Dec 19 16:09:54.860 INFO [stderr] 325 | |         (*self)(req)
Dec 19 16:09:54.860 INFO [stderr] 326 | |     }
Dec 19 16:09:54.860 INFO [stderr] 327 | | }
Dec 19 16:09:54.861 INFO [stderr]     | |_- first implementation here
Dec 19 16:09:54.861 INFO [stderr] ...
Dec 19 16:09:54.861 INFO [stderr] 339 |   impl<T> BeforeMiddleware for Arc<T> where T: BeforeMiddleware {
Dec 19 16:09:54.861 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr]     |
Dec 19 16:09:54.861 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>,)>` for type `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr] 
Dec 19 16:09:54.861 INFO [stderr] error[E0119]: conflicting implementations of trait `middleware::AfterMiddleware` for type `std::sync::Arc<_>`:
Dec 19 16:09:54.861 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iron-0.5.1/src/middleware/mod.rs:366:1
Dec 19 16:09:54.861 INFO [stderr]     |
Dec 19 16:09:54.861 INFO [stderr] 349 | / impl<F> AfterMiddleware for F
Dec 19 16:09:54.861 INFO [stderr] 350 | | where F: Send + Sync + 'static + Fn(&mut Request, Response) -> IronResult<Response> {
Dec 19 16:09:54.861 INFO [stderr] 351 | |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
Dec 19 16:09:54.861 INFO [stderr] 352 | |         (*self)(req, res)
Dec 19 16:09:54.861 INFO [stderr] 353 | |     }
Dec 19 16:09:54.861 INFO [stderr] 354 | | }
Dec 19 16:09:54.861 INFO [stderr]     | |_- first implementation here
Dec 19 16:09:54.861 INFO [stderr] ...
Dec 19 16:09:54.861 INFO [stderr] 366 |   impl<T> AfterMiddleware for Arc<T> where T: AfterMiddleware {
Dec 19 16:09:54.861 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr]     |
Dec 19 16:09:54.861 INFO [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr]     = note: downstream crates may implement trait `std::ops::Fn<(&mut request::Request<'_, '_>, response::Response)>` for type `std::sync::Arc<_>`
Dec 19 16:09:54.861 INFO [stderr] 
Dec 19 16:09:54.964 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 16:09:54.964 INFO [stderr] 
Dec 19 16:09:54.964 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 16:09:54.968 INFO [stderr] error: Could not compile `iron`.
Dec 19 16:09:54.968 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 16:09:57.282 INFO [stderr] error: build failed
Dec 19 16:09:57.758 INFO running `"docker" "inspect" "74b3d2d980e8a9cb561c4aa107b23ecee8a778b9a23676d88ceb5c476dbb056c"`
Dec 19 16:09:58.018 INFO running `"docker" "rm" "-f" "74b3d2d980e8a9cb561c4aa107b23ecee8a778b9a23676d88ceb5c476dbb056c"`
Dec 19 16:09:58.326 INFO [stdout] 74b3d2d980e8a9cb561c4aa107b23ecee8a778b9a23676d88ceb5c476dbb056c