[INFO] fetching crate essrpc 0.3.0...
[INFO] checking essrpc-0.3.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate essrpc 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate essrpc 0.3.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate essrpc 0.3.0
[INFO] finished tweaking crates.io crate essrpc 0.3.0
[INFO] tweaked toml for crates.io crate essrpc 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded essrpc_macros v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f79b52481351b10029233224419594c4f7d89cdd6f62296201842566c2cc874
[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" "5f79b52481351b10029233224419594c4f7d89cdd6f62296201842566c2cc874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f79b52481351b10029233224419594c4f7d89cdd6f62296201842566c2cc874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f79b52481351b10029233224419594c4f7d89cdd6f62296201842566c2cc874", kill_on_drop: false }`
[INFO] [stdout] 5f79b52481351b10029233224419594c4f7d89cdd6f62296201842566c2cc874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] 1e3c6d1e08ae4e81e3700a01adf52b5c76754463b2b219573569626280f9f6c7
[INFO] running `Command { std: "docker" "start" "-a" "1e3c6d1e08ae4e81e3700a01adf52b5c76754463b2b219573569626280f9f6c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling essrpc_macros v0.3.0
[INFO] [stderr]     Checking essrpc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]   --> src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use std::future::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]   --> src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use std::future::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::pin::Pin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `essrpc::transports::BincodeAsyncClientTransport`, `essrpc::transports::BincodeTransport`, `essrpc::transports::JSONAsyncClientTransport`, `essrpc::transports::JSONTransport`
[INFO] [stdout]  --> tests/async.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     BincodeAsyncClientTransport, BincodeTransport, JSONAsyncClientTransport, JSONTransport,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^ no `JSONTransport` in `transports`
[INFO] [stdout]   |     |                            |                 |
[INFO] [stdout]   |     |                            |                 no `JSONAsyncClientTransport` in `transports`
[INFO] [stdout]   |     |                            no `BincodeTransport` in `transports`
[INFO] [stdout]   |     no `BincodeAsyncClientTransport` in `transports`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/async.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{executor::block_on};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `essrpc::AsyncRPCClient`
[INFO] [stdout]  --> tests/async.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use essrpc::{AsyncRPCClient, RPCError, RPCServer};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^ no `AsyncRPCClient` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]   --> tests/async.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ no external crate `futures`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `essrpc::transports::BincodeTransport`, `essrpc::transports::JSONTransport`
[INFO] [stdout]   --> tests/basic.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | use essrpc::transports::{BincodeTransport, JSONTransport};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^ no `JSONTransport` in `transports`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          no `BincodeTransport` in `transports`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `AsyncClientTransport` in crate `essrpc`
[INFO] [stdout]    --> tests/async.rs:33:1
[INFO] [stdout]     |
[INFO] [stdout] 33  | #[essrpc(async, sync)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^ help: a trait with a similar name exists: `ClientTransport`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/lib.rs:117:1
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub trait ClientTransport {
[INFO] [stdout]     | ------------------------- similarly named trait `ClientTransport` defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `AsyncRPCClient` in crate `essrpc`
[INFO] [stdout]   --> tests/async.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ not found in `essrpc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BoxFuture` in crate `essrpc`
[INFO] [stdout]    --> tests/async.rs:33:1
[INFO] [stdout]     |
[INFO] [stdout] 33  |   #[essrpc(async, sync)]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^ help: a trait with a similar name exists: `Future`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `block_on` in this scope
[INFO] [stdout]   --> tests/async.rs:61:11
[INFO] [stdout]    |
[INFO] [stdout] 61 |     match block_on(foo.bar("the answer".to_string(), 42)) {
[INFO] [stdout]    |           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `block_on` in this scope
[INFO] [stdout]   --> tests/async.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |     match block_on(foo.bar("the answer".to_string(), 42)) {
[INFO] [stdout]    |           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `essrpc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1e3c6d1e08ae4e81e3700a01adf52b5c76754463b2b219573569626280f9f6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3c6d1e08ae4e81e3700a01adf52b5c76754463b2b219573569626280f9f6c7", kill_on_drop: false }`
[INFO] [stdout] 1e3c6d1e08ae4e81e3700a01adf52b5c76754463b2b219573569626280f9f6c7