[INFO] crate catt-core 0.1.0 is already in cache
[INFO] extracting crate catt-core 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/catt-core/0.1.0
[INFO] extracting crate catt-core 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/catt-core/0.1.0
[INFO] validating manifest of catt-core-0.1.0 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 catt-core-0.1.0 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 catt-core-0.1.0
[INFO] finished frobbing catt-core-0.1.0
[INFO] frobbed toml for catt-core-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/catt-core/0.1.0/Cargo.toml
[INFO] started frobbing catt-core-0.1.0
[INFO] finished frobbing catt-core-0.1.0
[INFO] frobbed toml for catt-core-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/catt-core/0.1.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing catt-core-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/catt-core/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3bd4522ac0603d5a7fa34970d9c45a1be770eba16d32fc640c0acf81ae73ac73
[INFO] running `"docker" "start" "-a" "3bd4522ac0603d5a7fa34970d9c45a1be770eba16d32fc640c0acf81ae73ac73"`
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling catt-core v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/bus.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stderr]  --> src/binding.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_core::channel::Receiver;
[INFO] [stderr]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(question_mark)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bridge/mod.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 |         Bus(e: Box<SError + Send + 'static>) {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SError + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bridge/mod.rs:36:24
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Binding(e: Box<SError + Send + 'static>) {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SError + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/value.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / error_chain!{
[INFO] [stderr] 10 | |     foreign_links {
[INFO] [stderr] 11 | |         io::Error, Io;
[INFO] [stderr] 12 | |         num::ParseFloatError, ParseNumber;
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/value.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / error_chain!{
[INFO] [stderr] 10 | |     foreign_links {
[INFO] [stderr] 11 | |         io::Error, Io;
[INFO] [stderr] 12 | |         num::ParseFloatError, ParseNumber;
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bridge/config.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / error_chain! {
[INFO] [stderr] 11 | |     foreign_links {
[INFO] [stderr] 12 | |         ::std::io::Error, IoError;
[INFO] [stderr] 13 | |         ::toml::Error, TomlError;
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/bridge/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / error_chain! {
[INFO] [stderr] 23 | |     links {
[INFO] [stderr] 24 | |         config::Error, config::ErrorKind, ConfigError;
[INFO] [stderr] 25 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     }
[INFO] [stderr] 41 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::stream::Stream`
[INFO] [stderr]  --> src/bridge/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::stream::Stream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `catt-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3bd4522ac0603d5a7fa34970d9c45a1be770eba16d32fc640c0acf81ae73ac73"`
[INFO] running `"docker" "rm" "-f" "3bd4522ac0603d5a7fa34970d9c45a1be770eba16d32fc640c0acf81ae73ac73"`
[INFO] [stdout] 3bd4522ac0603d5a7fa34970d9c45a1be770eba16d32fc640c0acf81ae73ac73