Dec 19 09:42:14.389 INFO checking rust-lang-nursery/rustfmt against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955 Dec 19 09:42:14.389 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/rust-lang-nursery/rustfmt:/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 09:42:14.985 INFO [stdout] a9bdb11e83b98e657935bfb937d37b7f5b109d255c693b8d9b1117cf5c766516 Dec 19 09:42:14.987 INFO running `"docker" "start" "-a" "a9bdb11e83b98e657935bfb937d37b7f5b109d255c693b8d9b1117cf5c766516"` Dec 19 09:42:16.965 INFO [stderr] Compiling rustc-rayon-core v0.1.1 Dec 19 09:42:16.965 INFO [stderr] Checking rustc-ap-graphviz v306.0.0 Dec 19 09:42:16.976 INFO [stderr] Compiling rustc-ap-rustc_target v306.0.0 Dec 19 09:42:16.976 INFO [stderr] Checking scoped-tls v0.1.2 Dec 19 09:42:16.977 INFO [stderr] Compiling rustc-ap-syntax v306.0.0 Dec 19 09:42:16.977 INFO [stderr] Compiling rustfmt-nightly v1.0.1 (/opt/crater/workdir) Dec 19 09:42:16.977 INFO [stderr] Checking unicode-segmentation v1.2.1 Dec 19 09:42:16.978 INFO [stderr] Checking rustc-workspace-hack v1.0.0 Dec 19 09:42:17.760 INFO [stderr] Checking diff v0.1.11 Dec 19 09:42:18.025 INFO [stderr] Checking bytecount v0.4.0 Dec 19 09:42:18.140 INFO [stderr] warning: use of deprecated item 'core::str::::trim_right': superseded by `trim_end` Dec 19 09:42:18.140 INFO [stderr] --> build.rs:39:49 Dec 19 09:42:18.140 INFO [stderr] | Dec 19 09:42:18.140 INFO [stderr] 39 | format!("{} ({} {})", channel, hash.trim_right(), date) Dec 19 09:42:18.140 INFO [stderr] | ^^^^^^^^^^ Dec 19 09:42:18.140 INFO [stderr] | Dec 19 09:42:18.140 INFO [stderr] = note: #[warn(deprecated)] on by default Dec 19 09:42:18.140 INFO [stderr] Dec 19 09:42:18.583 INFO [stderr] Checking ena v0.11.0 Dec 19 09:42:18.585 INFO [stderr] Checking rustc-ap-rustc_cratesio_shim v306.0.0 Dec 19 09:42:19.717 INFO [stderr] Checking smallvec v0.6.6 Dec 19 09:42:19.733 INFO [stderr] Compiling semver v0.9.0 Dec 19 09:42:19.825 INFO [stderr] Compiling serde_derive v1.0.80 Dec 19 09:42:19.837 INFO [stderr] Compiling derive-new v0.5.6 Dec 19 09:42:21.050 INFO [stderr] Checking error-chain v0.12.0 Dec 19 09:42:21.774 INFO [stderr] Checking env_logger v0.5.13 Dec 19 09:42:23.174 INFO [stderr] Checking failure v0.1.3 Dec 19 09:42:23.906 INFO [stderr] Checking rustc-ap-serialize v306.0.0 Dec 19 09:42:26.670 INFO [stderr] Compiling rustc_version v0.2.3 Dec 19 09:42:26.777 INFO [stderr] error[E0119]: conflicting implementations of trait `serialize::Encodable` for type `std::rc::Rc<_>`: Dec 19 09:42:26.777 INFO [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-306.0.0/serialize.rs:893:1 Dec 19 09:42:26.777 INFO [stderr] | Dec 19 09:42:26.777 INFO [stderr] 589 | impl Encodable for Rc { Dec 19 09:42:26.777 INFO [stderr] | ------------------------------------- first implementation here Dec 19 09:42:26.777 INFO [stderr] ... Dec 19 09:42:26.777 INFO [stderr] 893 | impl Encodable for T { Dec 19 09:42:26.777 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::rc::Rc<_>` Dec 19 09:42:26.777 INFO [stderr] | Dec 19 09:42:26.777 INFO [stderr] = note: downstream crates may implement trait `serialize::UseSpecializedEncodable` for type `std::rc::Rc<_>` Dec 19 09:42:26.777 INFO [stderr] Dec 19 09:42:26.777 INFO [stderr] error[E0119]: conflicting implementations of trait `serialize::Decodable` for type `std::rc::Rc<_>`: Dec 19 09:42:26.777 INFO [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-306.0.0/serialize.rs:908:1 Dec 19 09:42:26.777 INFO [stderr] | Dec 19 09:42:26.777 INFO [stderr] 595 | impl Decodable for Rc { Dec 19 09:42:26.777 INFO [stderr] | ------------------------------------- first implementation here Dec 19 09:42:26.777 INFO [stderr] ... Dec 19 09:42:26.777 INFO [stderr] 908 | impl Decodable for T { Dec 19 09:42:26.777 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::rc::Rc<_>` Dec 19 09:42:26.777 INFO [stderr] | Dec 19 09:42:26.777 INFO [stderr] = note: downstream crates may implement trait `serialize::UseSpecializedDecodable` for type `std::rc::Rc<_>` Dec 19 09:42:26.782 INFO [stderr] Dec 19 09:42:27.013 INFO [stderr] Checking rustc-rayon v0.1.1 Dec 19 09:42:27.107 INFO [stderr] error: aborting due to 2 previous errors Dec 19 09:42:27.107 INFO [stderr] Dec 19 09:42:27.107 INFO [stderr] For more information about this error, try `rustc --explain E0119`. Dec 19 09:42:27.145 INFO [stderr] error: Could not compile `rustc-ap-serialize`. Dec 19 09:42:27.145 INFO [stderr] warning: build failed, waiting for other jobs to finish... Dec 19 09:42:43.109 INFO [stderr] error: build failed Dec 19 09:42:44.195 INFO running `"docker" "inspect" "a9bdb11e83b98e657935bfb937d37b7f5b109d255c693b8d9b1117cf5c766516"` Dec 19 09:42:44.418 INFO running `"docker" "rm" "-f" "a9bdb11e83b98e657935bfb937d37b7f5b109d255c693b8d9b1117cf5c766516"` Dec 19 09:42:44.712 INFO [stdout] a9bdb11e83b98e657935bfb937d37b7f5b109d255c693b8d9b1117cf5c766516