[INFO] fetching crate catt-core 0.1.0...
[INFO] testing catt-core-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate catt-core 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate catt-core 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate catt-core 0.1.0
[INFO] finished tweaking crates.io crate catt-core 0.1.0
[INFO] tweaked toml for crates.io crate catt-core 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6c57273e9ec5ce91a6b409e6449ac36ca240a61652ba9cafc65cc0f42212a5f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d6c57273e9ec5ce91a6b409e6449ac36ca240a61652ba9cafc65cc0f42212a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6c57273e9ec5ce91a6b409e6449ac36ca240a61652ba9cafc65cc0f42212a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c57273e9ec5ce91a6b409e6449ac36ca240a61652ba9cafc65cc0f42212a5f", kill_on_drop: false }`
[INFO] [stdout] d6c57273e9ec5ce91a6b409e6449ac36ca240a61652ba9cafc65cc0f42212a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f363a04c51066ada1f846932d69625d36637b948d9c6430e7e0d0047d7a9d9d0
[INFO] running `Command { std: "docker" "start" "-a" "f363a04c51066ada1f846932d69625d36637b948d9c6430e7e0d0047d7a9d9d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling catt-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stdout]  --> src/bus.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio_core::channel::Receiver;
[INFO] [stdout]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio_core::channel`
[INFO] [stdout]  --> src/binding.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio_core::channel::Receiver;
[INFO] [stdout]   |                 ^^^^^^^ could not find `channel` in `tokio_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(question_mark)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bridge/mod.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Bus(e: Box<SError + Send + 'static>) {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SError + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bridge/mod.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Binding(e: Box<SError + Send + 'static>) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SError + Send + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/value.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / error_chain!{
[INFO] [stdout] 10 | |     foreign_links {
[INFO] [stdout] 11 | |         io::Error, Io;
[INFO] [stdout] 12 | |         num::ParseFloatError, ParseNumber;
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     }
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/value.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / error_chain!{
[INFO] [stdout] 10 | |     foreign_links {
[INFO] [stdout] 11 | |         io::Error, Io;
[INFO] [stdout] 12 | |         num::ParseFloatError, ParseNumber;
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     }
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bridge/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / error_chain! {
[INFO] [stdout] 23 | |     links {
[INFO] [stdout] 24 | |         config::Error, config::ErrorKind, ConfigError;
[INFO] [stdout] 25 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bridge/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / error_chain! {
[INFO] [stdout] 11 | |     foreign_links {
[INFO] [stdout] 12 | |         ::std::io::Error, IoError;
[INFO] [stdout] 13 | |         ::toml::Error, TomlError;
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/value.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / error_chain!{
[INFO] [stdout] 10 | |     foreign_links {
[INFO] [stdout] 11 | |         io::Error, Io;
[INFO] [stdout] 12 | |         num::ParseFloatError, ParseNumber;
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     }
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/bridge/config.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / error_chain! {
[INFO] [stdout] 11 | |     foreign_links {
[INFO] [stdout] 12 | |         ::std::io::Error, IoError;
[INFO] [stdout] 13 | |         ::toml::Error, TomlError;
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/bridge/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / error_chain! {
[INFO] [stdout] 23 | |     links {
[INFO] [stdout] 24 | |         config::Error, config::ErrorKind, ConfigError;
[INFO] [stdout] 25 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     }
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::Stream`
[INFO] [stdout]  --> src/bridge/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `catt-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f363a04c51066ada1f846932d69625d36637b948d9c6430e7e0d0047d7a9d9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f363a04c51066ada1f846932d69625d36637b948d9c6430e7e0d0047d7a9d9d0", kill_on_drop: false }`
[INFO] [stdout] f363a04c51066ada1f846932d69625d36637b948d9c6430e7e0d0047d7a9d9d0