[INFO] crate logical 0.2.1 is already in cache
[INFO] extracting crate logical 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/logical/0.2.1
[INFO] extracting crate logical 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/logical/0.2.1
[INFO] validating manifest of logical-0.2.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of logical-0.2.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing logical-0.2.1
[INFO] finished frobbing logical-0.2.1
[INFO] frobbed toml for logical-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/logical/0.2.1/Cargo.toml
[INFO] started frobbing logical-0.2.1
[INFO] finished frobbing logical-0.2.1
[INFO] frobbed toml for logical-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/logical/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing logical-0.2.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/logical/0.2.1:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 547da640dab30ec6962de826c8bcad8254c937a4fa68a4c14dfb979664d6b390
[INFO] running `"docker" "start" "-a" "547da640dab30ec6962de826c8bcad8254c937a4fa68a4c14dfb979664d6b390"`
[INFO] [stderr]    Compiling logical v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(nll, try_from, vec_remove_item)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/circuit.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 |     updater: Vec<Box<Updateable>>,
[INFO] [stderr]   |                      ^^^^^^^^^^ help: use `dyn`: `dyn Updateable`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `std::convert::TryInto<port::portconnector::PortConnector<_, port::portdirection::Dir<port::portdirection::Read, port::portdirection::Off>>>` for type `port::pport::Port<_, _>`:
[INFO] [stderr]    --> src/port/pport.rs:91:1
[INFO] [stderr]     |
[INFO] [stderr] 91  | / impl<T, D> TryInto<PortConnector<T, Input>> for Port<T, D>
[INFO] [stderr] 92  | | where
[INFO] [stderr] 93  | |     D: PortDirection,
[INFO] [stderr] 94  | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |     }
[INFO] [stderr] 104 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: conflicting implementation in crate `core`:
[INFO] [stderr]             - impl<T, U> std::convert::TryInto<U> for T
[INFO] [stderr]               where U: std::convert::TryFrom<T>;
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `std::convert::TryInto<port::portconnector::PortConnector<_, port::portdirection::Dir<port::portdirection::Off, port::portdirection::Write>>>` for type `port::pport::Port<_, _>`:
[INFO] [stderr]    --> src/port/pport.rs:106:1
[INFO] [stderr]     |
[INFO] [stderr] 106 | / impl<T, D> TryInto<PortConnector<T, Output>> for Port<T, D>
[INFO] [stderr] 107 | | where
[INFO] [stderr] 108 | |     D: PortDirection,
[INFO] [stderr] 109 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 118 | |     }
[INFO] [stderr] 119 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: conflicting implementation in crate `core`:
[INFO] [stderr]             - impl<T, U> std::convert::TryInto<U> for T
[INFO] [stderr]               where U: std::convert::TryFrom<T>;
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0119, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0119`.
[INFO] [stderr] error: Could not compile `logical`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "547da640dab30ec6962de826c8bcad8254c937a4fa68a4c14dfb979664d6b390"`
[INFO] running `"docker" "rm" "-f" "547da640dab30ec6962de826c8bcad8254c937a4fa68a4c14dfb979664d6b390"`
[INFO] [stdout] 547da640dab30ec6962de826c8bcad8254c937a4fa68a4c14dfb979664d6b390