[INFO] crate essrpc 0.2.0 is already in cache
[INFO] extracting crate essrpc 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/essrpc/0.2.0
[INFO] extracting crate essrpc 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/essrpc/0.2.0
[INFO] validating manifest of essrpc-0.2.0 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 essrpc-0.2.0 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 essrpc-0.2.0
[INFO] finished frobbing essrpc-0.2.0
[INFO] frobbed toml for essrpc-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/essrpc/0.2.0/Cargo.toml
[INFO] started frobbing essrpc-0.2.0
[INFO] finished frobbing essrpc-0.2.0
[INFO] frobbed toml for essrpc-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/essrpc/0.2.0/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 essrpc-0.2.0 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/essrpc/0.2.0:/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] fdfb34f32b6e3cd5c609413223549c934584efbed9e1bd42468ea84b996a3150
[INFO] running `"docker" "start" "-a" "fdfb34f32b6e3cd5c609413223549c934584efbed9e1bd42468ea84b996a3150"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling essrpc_macros v0.2.0
[INFO] [stderr]    Compiling essrpc v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:310:34
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn source(&self) -> Option<&(std::error::Error + 'static)> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.44s
[INFO] running `"docker" "inspect" "fdfb34f32b6e3cd5c609413223549c934584efbed9e1bd42468ea84b996a3150"`
[INFO] running `"docker" "rm" "-f" "fdfb34f32b6e3cd5c609413223549c934584efbed9e1bd42468ea84b996a3150"`
[INFO] [stdout] fdfb34f32b6e3cd5c609413223549c934584efbed9e1bd42468ea84b996a3150
[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/essrpc/0.2.0:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] bff9c380c580ee576b5f3eca676bbe1fcb95d3a423c04105804ec1ccf21d96b4
[INFO] running `"docker" "start" "-a" "bff9c380c580ee576b5f3eca676bbe1fcb95d3a423c04105804ec1ccf21d96b4"`
[INFO] [stderr]    Compiling essrpc v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:310:34
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn source(&self) -> Option<&(std::error::Error + 'static)> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `essrpc::transports::BincodeTransport`, `essrpc::transports::JSONTransport`
[INFO] [stderr]   --> tests/basic.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 | use essrpc::transports::{BincodeTransport, JSONTransport};
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^ no `JSONTransport` in `transports`
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          no `BincodeTransport` in `transports`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `essrpc::transports::BincodeAsyncClientTransport`, `essrpc::transports::BincodeTransport`, `essrpc::transports::JSONAsyncClientTransport`, `essrpc::transports::JSONTransport`
[INFO] [stderr]  --> tests/async.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     BincodeAsyncClientTransport, BincodeTransport, JSONAsyncClientTransport, JSONTransport,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^ no `JSONTransport` in `transports`
[INFO] [stderr]   |     |                            |                 |
[INFO] [stderr]   |     |                            |                 no `JSONAsyncClientTransport` in `transports`
[INFO] [stderr]   |     |                            no `BincodeTransport` in `transports`
[INFO] [stderr]   |     no `BincodeAsyncClientTransport` in `transports`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `essrpc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `essrpc::AsyncRPCClient`
[INFO] [stderr]  --> tests/async.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use essrpc::{AsyncRPCClient, RPCError, RPCServer};
[INFO] [stderr]   |              ^^^^^^^^^^^^^^ no `AsyncRPCClient` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
[INFO] [stderr]   --> tests/async.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | #[essrpc(async, sync)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures`
[INFO] [stderr]  --> tests/async.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::{future, Future};
[INFO] [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsyncClientTransport` in module `essrpc`
[INFO] [stderr]   --> tests/async.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | #[essrpc(async, sync)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^ help: a trait with a similar name exists: `ClientTransport`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsyncRPCClient` in module `essrpc`
[INFO] [stderr]   --> tests/async.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | #[essrpc(async, sync)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^ not found in `essrpc`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `essrpc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bff9c380c580ee576b5f3eca676bbe1fcb95d3a423c04105804ec1ccf21d96b4"`
[INFO] running `"docker" "rm" "-f" "bff9c380c580ee576b5f3eca676bbe1fcb95d3a423c04105804ec1ccf21d96b4"`
[INFO] [stdout] bff9c380c580ee576b5f3eca676bbe1fcb95d3a423c04105804ec1ccf21d96b4