Dec 19 16:12:14.380 INFO checking hatoo/Accepted against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:12:14.380 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/hatoo/Accepted:/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 16:12:14.626 INFO [stdout] 75c6e79d9dfdad17c4f5db4777dd2f7e646d5df4ecc07723b3f05c9efa017161
Dec 19 16:12:14.634 INFO running `"docker" "start" "-a" "75c6e79d9dfdad17c4f5db4777dd2f7e646d5df4ecc07723b3f05c9efa017161"`
Dec 19 16:12:15.395 INFO [stderr]     Checking rustc-ap-graphviz v306.0.0
Dec 19 16:12:15.398 INFO [stderr]    Compiling serde v1.0.81
Dec 19 16:12:15.398 INFO [stderr]    Compiling rustc-ap-rustc_target v306.0.0
Dec 19 16:12:15.399 INFO [stderr]    Compiling rustc-ap-syntax v306.0.0
Dec 19 16:12:15.416 INFO [stderr]    Compiling onig_sys v69.0.0
Dec 19 16:12:15.417 INFO [stderr]     Checking ena v0.11.0
Dec 19 16:12:15.417 INFO [stderr]     Checking rustc-ap-rustc_cratesio_shim v306.0.0
Dec 19 16:12:15.417 INFO [stderr]     Checking smallvec v0.6.7
Dec 19 16:12:15.984 INFO [stderr]     Checking termion v1.5.1
Dec 19 16:12:16.283 INFO [stderr]     Checking rustc-rayon-core v0.1.1
Dec 19 16:12:17.194 INFO [stderr]     Checking flate2 v1.0.6
Dec 19 16:12:17.218 INFO [stderr]    Compiling serde_derive v1.0.81
Dec 19 16:12:17.232 INFO [stderr]    Compiling derive_more v0.13.0
Dec 19 16:12:17.260 INFO [stderr]    Compiling num-derive v0.2.3
Dec 19 16:12:17.642 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 19 16:12:19.269 INFO [stderr]     Checking rustc-ap-serialize v306.0.0
Dec 19 16:12:19.912 INFO [stderr]     Checking serde-hjson v0.8.2
Dec 19 16:12:20.701 INFO [stderr] error[E0119]: conflicting implementations of trait `serialize::Encodable` for type `std::rc::Rc<_>`:
Dec 19 16:12:20.701 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-306.0.0/serialize.rs:893:1
Dec 19 16:12:20.701 INFO [stderr]     |
Dec 19 16:12:20.701 INFO [stderr] 589 | impl<T:Encodable> Encodable for Rc<T> {
Dec 19 16:12:20.701 INFO [stderr]     | ------------------------------------- first implementation here
Dec 19 16:12:20.701 INFO [stderr] ...
Dec 19 16:12:20.701 INFO [stderr] 893 | impl<T: ?Sized + UseSpecializedEncodable> Encodable for T {
Dec 19 16:12:20.701 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::rc::Rc<_>`
Dec 19 16:12:20.701 INFO [stderr]     |
Dec 19 16:12:20.701 INFO [stderr]     = note: downstream crates may implement trait `serialize::UseSpecializedEncodable` for type `std::rc::Rc<_>`
Dec 19 16:12:20.701 INFO [stderr] 
Dec 19 16:12:20.701 INFO [stderr] error[E0119]: conflicting implementations of trait `serialize::Decodable` for type `std::rc::Rc<_>`:
Dec 19 16:12:20.701 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-306.0.0/serialize.rs:908:1
Dec 19 16:12:20.701 INFO [stderr]     |
Dec 19 16:12:20.701 INFO [stderr] 595 | impl<T:Decodable> Decodable for Rc<T> {
Dec 19 16:12:20.701 INFO [stderr]     | ------------------------------------- first implementation here
Dec 19 16:12:20.701 INFO [stderr] ...
Dec 19 16:12:20.701 INFO [stderr] 908 | impl<T: UseSpecializedDecodable> Decodable for T {
Dec 19 16:12:20.701 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::rc::Rc<_>`
Dec 19 16:12:20.701 INFO [stderr]     |
Dec 19 16:12:20.701 INFO [stderr]     = note: downstream crates may implement trait `serialize::UseSpecializedDecodable` for type `std::rc::Rc<_>`
Dec 19 16:12:20.701 INFO [stderr] 
Dec 19 16:12:20.701 INFO [stderr]     Checking rustc-rayon v0.1.1
Dec 19 16:12:20.812 INFO [stderr] error: aborting due to 2 previous errors
Dec 19 16:12:20.813 INFO [stderr] 
Dec 19 16:12:20.813 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 16:12:20.858 INFO [stderr] error: Could not compile `rustc-ap-serialize`.
Dec 19 16:12:20.859 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 16:12:41.692 INFO [stderr] error: build failed
Dec 19 16:12:42.164 INFO running `"docker" "inspect" "75c6e79d9dfdad17c4f5db4777dd2f7e646d5df4ecc07723b3f05c9efa017161"`
Dec 19 16:12:42.404 INFO running `"docker" "rm" "-f" "75c6e79d9dfdad17c4f5db4777dd2f7e646d5df4ecc07723b3f05c9efa017161"`
Dec 19 16:12:42.648 INFO [stdout] 75c6e79d9dfdad17c4f5db4777dd2f7e646d5df4ecc07723b3f05c9efa017161