Dec 19 17:44:53.421 INFO checking dropbox/ruba against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:44:53.421 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/dropbox/ruba:/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 17:44:54.202 INFO [stdout] 7ed856a5879c5fad6ba72d7f0aa9645af7ff2435b80902287d5cd64403c46653
Dec 19 17:44:54.208 INFO running `"docker" "start" "-a" "7ed856a5879c5fad6ba72d7f0aa9645af7ff2435b80902287d5cd64403c46653"`
Dec 19 17:44:55.792 INFO [stderr]     Checking either v1.4.0
Dec 19 17:44:55.804 INFO [stderr]    Compiling heapsize v0.3.9
Dec 19 17:44:55.810 INFO [stderr]     Checking seahash v3.0.5
Dec 19 17:44:55.811 INFO [stderr]     Checking num-complex v0.1.43
Dec 19 17:44:55.811 INFO [stderr]     Checking nix v0.5.1
Dec 19 17:44:55.816 INFO [stderr]     Checking bincode v0.9.2
Dec 19 17:44:55.816 INFO [stderr]     Checking serde_json v0.9.10
Dec 19 17:44:55.816 INFO [stderr]     Checking num-bigint v0.1.43
Dec 19 17:44:58.463 INFO [stderr]     Checking nom v3.2.1
Dec 19 17:44:58.485 INFO [stderr]     Checking csv v0.15.0
Dec 19 17:44:59.548 INFO [stderr]     Checking futures-core v0.2.0-alpha
Dec 19 17:45:00.764 INFO [stderr]     Checking itertools v0.5.10
Dec 19 17:45:02.009 INFO [stderr]     Checking env_logger v0.5.6
Dec 19 17:45:02.029 INFO [stderr] error[E0119]: conflicting implementations of trait `HeapSizeOf` for type `std::vec::Vec<std::rc::Rc<_>>`:
Dec 19 17:45:02.029 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/heapsize-0.3.9/src/lib.rs:248:1
Dec 19 17:45:02.029 INFO [stderr]     |
Dec 19 17:45:02.029 INFO [stderr] 231 | impl<T: HeapSizeOf> HeapSizeOf for Vec<T> {
Dec 19 17:45:02.029 INFO [stderr]     | ----------------------------------------- first implementation here
Dec 19 17:45:02.029 INFO [stderr] ...
Dec 19 17:45:02.029 INFO [stderr] 248 | impl<T> HeapSizeOf for Vec<Rc<T>> {
Dec 19 17:45:02.029 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `std::vec::Vec<std::rc::Rc<_>>`
Dec 19 17:45:02.040 INFO [stderr]     |
Dec 19 17:45:02.040 INFO [stderr]     = note: downstream crates may implement trait `HeapSizeOf` for type `std::rc::Rc<_>`
Dec 19 17:45:02.040 INFO [stderr] 
Dec 19 17:45:02.040 INFO [stderr] error: aborting due to previous error
Dec 19 17:45:02.040 INFO [stderr] 
Dec 19 17:45:02.040 INFO [stderr] For more information about this error, try `rustc --explain E0119`.
Dec 19 17:45:02.076 INFO [stderr] error: Could not compile `heapsize`.
Dec 19 17:45:02.076 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 17:45:07.232 INFO [stderr] error: build failed
Dec 19 17:45:08.550 INFO running `"docker" "inspect" "7ed856a5879c5fad6ba72d7f0aa9645af7ff2435b80902287d5cd64403c46653"`
Dec 19 17:45:08.900 INFO running `"docker" "rm" "-f" "7ed856a5879c5fad6ba72d7f0aa9645af7ff2435b80902287d5cd64403c46653"`
Dec 19 17:45:09.176 INFO [stdout] 7ed856a5879c5fad6ba72d7f0aa9645af7ff2435b80902287d5cd64403c46653