[INFO] fetching crate essrpc 0.4.1...
[INFO] checking essrpc-0.4.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate essrpc 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate essrpc 0.4.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate essrpc 0.4.1
[INFO] finished tweaking crates.io crate essrpc 0.4.1
[INFO] tweaked toml for crates.io crate essrpc 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate essrpc 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readwrite v0.2.0
[INFO] [stderr]   Downloaded essrpc_macros v0.4.0
[INFO] [stderr]   Downloaded tokio-jsoncodec v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98ee05b5df946efd88d05f8671ca585290ee29100ec85296105c55331d65de32
[INFO] running `Command { std: "docker" "start" "-a" "98ee05b5df946efd88d05f8671ca585290ee29100ec85296105c55331d65de32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98ee05b5df946efd88d05f8671ca585290ee29100ec85296105c55331d65de32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ee05b5df946efd88d05f8671ca585290ee29100ec85296105c55331d65de32", kill_on_drop: false }`
[INFO] [stdout] 98ee05b5df946efd88d05f8671ca585290ee29100ec85296105c55331d65de32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05fd160309554a321a5a6fefe623bd7e059abe301e1581770902255bfc63bfcb
[INFO] running `Command { std: "docker" "start" "-a" "05fd160309554a321a5a6fefe623bd7e059abe301e1581770902255bfc63bfcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-macros v1.4.1
[INFO] [stderr]    Compiling essrpc_macros v0.4.0
[INFO] [stderr]     Checking readwrite v0.2.0
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking essrpc v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-jsoncodec v0.1.0
[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[E0432]: unresolved import `essrpc::AsyncRPCClient`
[INFO] [stdout]  --> tests/async.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use essrpc::{AsyncRPCClient, RPCServer};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^ no `AsyncRPCClient` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rpc_async_trait` in `internal`
[INFO] [stdout]   --> tests/async.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ could not find `rpc_async_trait` in `internal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `AsyncMutex` in `internal`
[INFO] [stdout]   --> tests/async.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | could not find `AsyncMutex` in `internal`
[INFO] [stdout]    | help: a type alias with a similar name exists: `SyncMutex`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `AsyncClientTransport` in crate `essrpc`
[INFO] [stdout]    --> tests/async.rs:31:1
[INFO] [stdout]     |
[INFO] [stdout] 31  | #[essrpc(async, sync)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^ help: a trait with a similar name exists: `ClientTransport`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/lib.rs:122:1
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub trait ClientTransport {
[INFO] [stdout]     | ------------------------- similarly named trait `ClientTransport` defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `AsyncMutex` in module `essrpc::internal`
[INFO] [stdout]   --> tests/async.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ help: a type alias with a similar name exists: `SyncMutex`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parking_lot-0.11.2/src/mutex.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub type Mutex<T> = lock_api::Mutex<RawMutex, T>;
[INFO] [stdout]    | ----------------- similarly named type alias `SyncMutex` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (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:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ not found in `essrpc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0706]: functions in traits cannot be declared `async`
[INFO] [stdout]   --> tests/async.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ `async` because of this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `async` trait functions are not currently supported
[INFO] [stdout]    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
[INFO] [stdout]    = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
[INFO] [stdout]    = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (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[E0432]: unresolved imports `essrpc::transports::BincodeAsyncClientTransport`, `essrpc::transports::BincodeTransport`
[INFO] [stdout]  --> examples/async-command.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use essrpc::transports::{BincodeAsyncClientTransport, BincodeTransport, ReadWrite};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^ no `BincodeTransport` in `transports`
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          no `BincodeAsyncClientTransport` in `transports`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `essrpc::AsyncRPCClient`
[INFO] [stdout]  --> examples/async-command.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use essrpc::{AsyncRPCClient, RPCErrorKind, RPCServer};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^ no `AsyncRPCClient` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rpc_async_trait` in `internal`
[INFO] [stdout]   --> examples/async-command.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ could not find `rpc_async_trait` in `internal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `AsyncMutex` in `internal`
[INFO] [stdout]   --> examples/async-command.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | could not find `AsyncMutex` in `internal`
[INFO] [stdout]    | help: a type alias with a similar name exists: `SyncMutex`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `AsyncClientTransport` in crate `essrpc`
[INFO] [stdout]    --> examples/async-command.rs:85:1
[INFO] [stdout]     |
[INFO] [stdout] 85  | #[essrpc(async, sync)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^ help: a trait with a similar name exists: `ClientTransport`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/lib.rs:122:1
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub trait ClientTransport {
[INFO] [stdout]     | ------------------------- similarly named trait `ClientTransport` defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `AsyncMutex` in module `essrpc::internal`
[INFO] [stdout]   --> examples/async-command.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ help: a type alias with a similar name exists: `SyncMutex`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parking_lot-0.11.2/src/mutex.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub type Mutex<T> = lock_api::Mutex<RawMutex, T>;
[INFO] [stdout]    | ----------------- similarly named type alias `SyncMutex` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (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]   --> examples/async-command.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ not found in `essrpc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0706]: functions in traits cannot be declared `async`
[INFO] [stdout]   --> examples/async-command.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[essrpc(async, sync)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ `async` because of this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `async` trait functions are not currently supported
[INFO] [stdout]    = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
[INFO] [stdout]    = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
[INFO] [stdout]    = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable
[INFO] [stdout]    = note: this error originates in the attribute macro `essrpc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0433, E0706.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0433, E0706.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `essrpc` (test "async") due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `essrpc` (example "async-command") due to 9 previous errors
[INFO] [stdout] warning: unused import: `RPCServer`
[INFO] [stdout]   --> tests/basic.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 | use essrpc::{RPCClient, RPCErrorKind, RPCServer};
[INFO] [stdout]    |                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `essrpc` (test "basic") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "05fd160309554a321a5a6fefe623bd7e059abe301e1581770902255bfc63bfcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fd160309554a321a5a6fefe623bd7e059abe301e1581770902255bfc63bfcb", kill_on_drop: false }`
[INFO] [stdout] 05fd160309554a321a5a6fefe623bd7e059abe301e1581770902255bfc63bfcb
