[INFO] crate canvas 1.0.1 is already in cache
[INFO] extracting crate canvas 1.0.1 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/canvas/1.0.1
[INFO] extracting crate canvas 1.0.1 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/canvas/1.0.1
[INFO] validating manifest of canvas-1.0.1 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of canvas-1.0.1 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing canvas-1.0.1
[INFO] finished frobbing canvas-1.0.1
[INFO] frobbed toml for canvas-1.0.1 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/canvas/1.0.1/Cargo.toml
[INFO] started frobbing canvas-1.0.1
[INFO] finished frobbing canvas-1.0.1
[INFO] frobbed toml for canvas-1.0.1 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/canvas/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking canvas-1.0.1 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
[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/reg/canvas/1.0.1:/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"`
[INFO] [stdout] 855fa9e37823da34e4ddb57538df2e54d9ce51b56cc35875b8df5ef9e4c3b645
[INFO] running `"docker" "start" "-a" "855fa9e37823da34e4ddb57538df2e54d9ce51b56cc35875b8df5ef9e4c3b645"`
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking websocket v0.20.4
[INFO] [stderr] error[E0119]: conflicting implementations of trait `NewService` for type `std::sync::Arc<_>`:
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-service-0.1.0/src/lib.rs:190:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | / impl<F, R> NewService for F
[INFO] [stderr] 177 | |     where F: Fn() -> io::Result<R>,
[INFO] [stderr] 178 | |           R: Service,
[INFO] [stderr] 179 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |     }
[INFO] [stderr] 188 | | }
[INFO] [stderr]     | |_- first implementation here
[INFO] [stderr] 189 | 
[INFO] [stderr] 190 |   impl<S: NewService + ?Sized> NewService for Arc<S> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::sync::Arc<_>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<()>` for type `std::sync::Arc<_>`
[INFO] [stderr]     = note: downstream crates may implement trait `std::ops::Fn<()>` for type `std::sync::Arc<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `NewService` for type `std::rc::Rc<_>`:
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-service-0.1.0/src/lib.rs:201:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | / impl<F, R> NewService for F
[INFO] [stderr] 177 | |     where F: Fn() -> io::Result<R>,
[INFO] [stderr] 178 | |           R: Service,
[INFO] [stderr] 179 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |     }
[INFO] [stderr] 188 | | }
[INFO] [stderr]     | |_- first implementation here
[INFO] [stderr] ...
[INFO] [stderr] 201 |   impl<S: NewService + ?Sized> NewService for Rc<S> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::rc::Rc<_>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: downstream crates may implement trait `std::ops::FnOnce<()>` for type `std::rc::Rc<_>`
[INFO] [stderr]     = note: downstream crates may implement trait `std::ops::Fn<()>` for type `std::rc::Rc<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0119`.
[INFO] [stderr] error: Could not compile `tokio-service`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "855fa9e37823da34e4ddb57538df2e54d9ce51b56cc35875b8df5ef9e4c3b645"`
[INFO] running `"docker" "rm" "-f" "855fa9e37823da34e4ddb57538df2e54d9ce51b56cc35875b8df5ef9e4c3b645"`
[INFO] [stdout] 855fa9e37823da34e4ddb57538df2e54d9ce51b56cc35875b8df5ef9e4c3b645