Dec 19 06:50:28.072 INFO checking tomusdrw/rustfest-2017 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:50:28.072 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tomusdrw/rustfest-2017:/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 06:50:28.492 INFO [stdout] 4e3a6015ebf7ba7d2b23e6b926193bf3cd0d8f28acb6886c7be9d34c00075913
Dec 19 06:50:28.496 INFO running `"docker" "start" "-a" "4e3a6015ebf7ba7d2b23e6b926193bf3cd0d8f28acb6886c7be9d34c00075913"`
Dec 19 06:50:30.452 INFO [stderr]     Checking libc v0.2.31
Dec 19 06:50:30.452 INFO [stderr]    Compiling heapsize v0.4.2
Dec 19 06:50:30.472 INFO [stderr]    Compiling crunchy v0.1.6
Dec 19 06:50:30.475 INFO [stderr]     Checking futures v0.1.16
Dec 19 06:50:30.475 INFO [stderr]     Checking serde v1.0.15
Dec 19 06:50:30.496 INFO [stderr]     Checking rustc-hex v1.0.0
Dec 19 06:50:30.504 INFO [stderr]    Compiling openssl-sys v0.9.31
Dec 19 06:50:30.504 INFO [stderr]    Compiling backtrace-sys v0.1.19
Dec 19 06:50:35.824 INFO [stderr]    Compiling rustc_version v0.2.2
Dec 19 06:50:36.271 INFO [stderr]    Compiling unicase v2.0.0
Dec 19 06:50:36.414 INFO [stderr]     Checking url v1.7.0
Dec 19 06:50:36.758 INFO [stderr]    Compiling serde_derive_internals v0.16.0
Dec 19 06:50:38.000 INFO [stderr] error[E0119]: conflicting implementations of trait `HeapSizeOf` for type `std::vec::Vec<std::rc::Rc<_>>`:
Dec 19 06:50:38.001 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/heapsize-0.4.2/src/lib.rs:245:1
Dec 19 06:50:38.001 INFO [stderr]     |
Dec 19 06:50:38.001 INFO [stderr] 228 | impl<T: HeapSizeOf> HeapSizeOf for Vec<T> {
Dec 19 06:50:38.002 INFO [stderr]     | ----------------------------------------- first implementation here
Dec 19 06:50:38.002 INFO [stderr] ...
Dec 19 06:50:38.002 INFO [stderr] 245 | impl<T> HeapSizeOf for Vec<Rc<T>> {
Dec 19 06:50:38.003 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::vec::Vec<std::rc::Rc<_>>`
Dec 19 06:50:38.008 INFO [stderr]     |
Dec 19 06:50:38.009 INFO [stderr]     = note: downstream crates may implement trait `HeapSizeOf` for type `std::rc::Rc<_>`
Dec 19 06:50:38.009 INFO [stderr] 
Dec 19 06:50:38.024 INFO [stderr] error: aborting due to previous error
Dec 19 06:50:38.024 INFO [stderr] 
Dec 19 06:50:38.025 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 06:50:38.077 INFO [stderr] error: Could not compile `heapsize`.
Dec 19 06:50:38.078 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 06:50:58.628 INFO [stderr] error: build failed
Dec 19 06:50:59.717 INFO running `"docker" "inspect" "4e3a6015ebf7ba7d2b23e6b926193bf3cd0d8f28acb6886c7be9d34c00075913"`
Dec 19 06:50:59.968 INFO running `"docker" "rm" "-f" "4e3a6015ebf7ba7d2b23e6b926193bf3cd0d8f28acb6886c7be9d34c00075913"`
Dec 19 06:51:00.216 INFO [stdout] 4e3a6015ebf7ba7d2b23e6b926193bf3cd0d8f28acb6886c7be9d34c00075913