Dec 19 21:08:34.938 INFO checking aarroyoc/fractal_tree against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:08:34.938 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/aarroyoc/fractal_tree:/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 21:08:35.181 INFO [stdout] 4c69ac66bab75df7ef619879a6a7431dbff7a3fa1807e4a90a90de1440631e5f
Dec 19 21:08:35.184 INFO running `"docker" "start" "-a" "4c69ac66bab75df7ef619879a6a7431dbff7a3fa1807e4a90a90de1440631e5f"`
Dec 19 21:08:35.852 INFO [stderr]    Compiling heapsize v0.4.1
Dec 19 21:08:35.852 INFO [stderr]    Compiling either v1.3.0
Dec 19 21:08:35.852 INFO [stderr]     Checking nodrop v0.1.10
Dec 19 21:08:35.852 INFO [stderr]     Checking sid v0.5.0
Dec 19 21:08:35.853 INFO [stderr]     Checking shared_library v0.1.7
Dec 19 21:08:35.853 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 21:08:35.853 INFO [stderr]     Checking tempfile v2.2.0
Dec 19 21:08:35.853 INFO [stderr]     Checking x11-dl v2.15.0
Dec 19 21:08:36.468 INFO [stderr]     Checking num-rational v0.1.39
Dec 19 21:08:36.872 INFO [stderr]     Checking svgparser v0.4.3
Dec 19 21:08:37.700 INFO [stderr]     Checking fs2 v0.2.5
Dec 19 21:08:37.717 INFO [stderr]    Compiling itertools v0.5.10
Dec 19 21:08:37.980 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 21:08:38.804 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 21:08:38.830 INFO [stderr]     Checking arrayvec v0.3.23
Dec 19 21:08:38.856 INFO [stderr]     Checking num v0.1.40
Dec 19 21:08:39.188 INFO [stderr]     Checking memmap v0.4.0
Dec 19 21:08:40.492 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 19 21:08:40.492 INFO [stderr]    Compiling palette v0.2.1
Dec 19 21:08:40.693 INFO [stderr] error[E0119]: conflicting implementations of trait `HeapSizeOf` for type `std::vec::Vec<std::rc::Rc<_>>`:
Dec 19 21:08:40.693 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/heapsize-0.4.1/src/lib.rs:244:1
Dec 19 21:08:40.693 INFO [stderr]     |
Dec 19 21:08:40.693 INFO [stderr] 227 | impl<T: HeapSizeOf> HeapSizeOf for Vec<T> {
Dec 19 21:08:40.693 INFO [stderr]     | ----------------------------------------- first implementation here
Dec 19 21:08:40.693 INFO [stderr] ...
Dec 19 21:08:40.693 INFO [stderr] 244 | impl<T> HeapSizeOf for Vec<Rc<T>> {
Dec 19 21:08:40.693 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::vec::Vec<std::rc::Rc<_>>`
Dec 19 21:08:40.693 INFO [stderr]     |
Dec 19 21:08:40.693 INFO [stderr]     = note: downstream crates may implement trait `HeapSizeOf` for type `std::rc::Rc<_>`
Dec 19 21:08:40.693 INFO [stderr] 
Dec 19 21:08:40.724 INFO [stderr] error: aborting due to previous error
Dec 19 21:08:40.724 INFO [stderr] 
Dec 19 21:08:40.724 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 21:08:40.804 INFO [stderr] error: Could not compile `heapsize`.
Dec 19 21:08:40.804 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 21:08:49.066 INFO [stderr] error: build failed
Dec 19 21:08:49.768 INFO running `"docker" "inspect" "4c69ac66bab75df7ef619879a6a7431dbff7a3fa1807e4a90a90de1440631e5f"`
Dec 19 21:08:50.174 INFO running `"docker" "rm" "-f" "4c69ac66bab75df7ef619879a6a7431dbff7a3fa1807e4a90a90de1440631e5f"`
Dec 19 21:08:50.564 INFO [stdout] 4c69ac66bab75df7ef619879a6a7431dbff7a3fa1807e4a90a90de1440631e5f