[INFO] fetching crate tower-balance 0.3.0...
[INFO] testing tower-balance-0.3.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate tower-balance 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tower-balance 0.3.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-balance 0.3.0
[INFO] finished tweaking crates.io crate tower-balance 0.3.0
[INFO] tweaked toml for crates.io crate tower-balance 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate tower-balance 0.3.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-layer v0.3.0
[INFO] [stderr]   Downloaded tower-make v0.3.0
[INFO] [stderr]   Downloaded tracing v0.1.10
[INFO] [stderr]   Downloaded tracing-attributes v0.1.5
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.0
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded tracing-core v0.1.7
[INFO] [stderr]   Downloaded pin-project-lite v0.1.1
[INFO] [stderr]   Downloaded tokio v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7601b3dc28cc06ab5d417ebcad36e128a582d0f6c959207e007afecde2c376b0
[INFO] running `Command { std: "docker" "start" "-a" "7601b3dc28cc06ab5d417ebcad36e128a582d0f6c959207e007afecde2c376b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7601b3dc28cc06ab5d417ebcad36e128a582d0f6c959207e007afecde2c376b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7601b3dc28cc06ab5d417ebcad36e128a582d0f6c959207e007afecde2c376b0", kill_on_drop: false }`
[INFO] [stdout] 7601b3dc28cc06ab5d417ebcad36e128a582d0f6c959207e007afecde2c376b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f42838683511908b85d7b2b151921e9d7df4c928c29075edb3573529743581b
[INFO] running `Command { std: "docker" "start" "-a" "3f42838683511908b85d7b2b151921e9d7df4c928c29075edb3573529743581b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling tracing-core v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling tokio v0.2.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tower-ready-cache v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling tracing v0.1.10
[INFO] [stderr]    Compiling pin-project v0.4.6
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-load v0.3.0
[INFO] [stderr]    Compiling tower-balance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/make.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/service.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/pool/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "3f42838683511908b85d7b2b151921e9d7df4c928c29075edb3573529743581b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f42838683511908b85d7b2b151921e9d7df4c928c29075edb3573529743581b", kill_on_drop: false }`
[INFO] [stdout] 3f42838683511908b85d7b2b151921e9d7df4c928c29075edb3573529743581b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2744e889222a70505ef41405b56651e76eaa6c8a4670512473de390c4956cc95
[INFO] running `Command { std: "docker" "start" "-a" "2744e889222a70505ef41405b56651e76eaa6c8a4670512473de390c4956cc95", kill_on_drop: false }`
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/make.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/service.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tower-balance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/pool/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower`
[INFO] [stdout]   --> examples/demo.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tower::util::ServiceExt;
[INFO] [stdout]    |     ^^^^^ use of undeclared crate or module `tower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower_limit`
[INFO] [stdout]   --> examples/demo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tower_limit::concurrency::ConcurrencyLimit;
[INFO] [stdout]    |     ^^^^^^^^^^^ use of undeclared crate or module `tower_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hdrhistogram`
[INFO] [stdout]  --> examples/demo.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hdrhistogram::Histogram;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `hdrhistogram`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]    --> examples/demo.rs:44:10
[INFO] [stdout]     |
[INFO] [stdout] 44  | #[tokio::main]
[INFO] [stdout]     |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:268:27
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub use tokio_macros::main;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tracing_subscriber`
[INFO] [stdout]   --> examples/demo.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     tracing::subscriber::set_global_default(tracing_subscriber::FmtSubscriber::default()).unwrap();
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `tracing_subscriber`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio_test`
[INFO] [stdout]  --> src/p2c/test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tokio_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tower_test`
[INFO] [stdout]  --> src/p2c/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tower_test::{assert_request_eq, mock};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tower_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio_test`
[INFO] [stdout]  --> src/pool/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tokio_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tower_test`
[INFO] [stdout]  --> src/pool/test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tower_test::{assert_request_eq, mock};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tower_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:10:10
[INFO] [stdout]     |
[INFO] [stdout] 10  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:18:10
[INFO] [stdout]     |
[INFO] [stdout] 18  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:53:10
[INFO] [stdout]     |
[INFO] [stdout] 53  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:8:10
[INFO] [stdout]     |
[INFO] [stdout] 8   | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:32:10
[INFO] [stdout]     |
[INFO] [stdout] 32  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:84:10
[INFO] [stdout]     |
[INFO] [stdout] 84  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:142:10
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |     assert_eq!(assert_ready_ok!(fut.poll()), "bar");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:139:16
[INFO] [stdout]     |
[INFO] [stdout] 139 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:131:16
[INFO] [stdout]     |
[INFO] [stdout] 131 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     assert_eq!(assert_ready_ok!(fut2.poll()), "bar");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 |     assert_eq!(assert_ready_ok!(fut1.poll()), "foo");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     assert_pending!(handle.as_mut().poll_request());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     assert_eq!(assert_ready_ok!(fut.poll()), "foobar");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     assert_request_eq!(svc1, ()).send_response("foobar");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_pending!(fut.poll());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/p2c/test.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/p2c/test.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         assert_ready_ok!(fut.poll());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/p2c/test.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         assert_ready_ok!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |         assert_eq!(assert_ready_ok!(fut.poll()), "b");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         assert_request_eq!(handle_b, ()).send_response("b");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     assert_ready_ok!(
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |         assert_eq!(assert_ready_ok!(fut.poll()), "a");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         assert_request_eq!(handle_a, ()).send_response("a");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     assert_ready_ok!(
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     assert_eq!(assert_ready_ok!(fut.poll()), 1);
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_request_eq!(handle, ()).send_response(1);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower`
[INFO] [stdout]    --> examples/demo.rs:111:27
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 let svc = tower::service_fn(move |_| {
[INFO] [stdout]     |                           ^^^^^ use of undeclared crate or module `tower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/demo.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/p2c/test.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |     handle_a.allow(0);
[INFO] [stdout]    |              ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-balance` (example "demo") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/p2c/test.rs:67:14
[INFO] [stdout]    |
[INFO] [stdout] 67 |     handle_b.allow(0);
[INFO] [stdout]    |              ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/p2c/test.rs:109:51
[INFO] [stdout]     |
[INFO] [stdout] 109 |             if let Poll::Ready(Some((_, tx))) = h.as_mut().poll_request() {
[INFO] [stdout]     |                                                   ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/pool/test.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     svc1.allow(1);
[INFO] [stdout]    |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/pool/test.rs:64:10
[INFO] [stdout]    |
[INFO] [stdout] 64 |     svc2.allow(1);
[INFO] [stdout]    |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |     svc1.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:118:10
[INFO] [stdout]     |
[INFO] [stdout] 118 |     svc2.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 |     svc1.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:180:10
[INFO] [stdout]     |
[INFO] [stdout] 180 |     svc2.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 79 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-balance` (lib test) due to 80 previous errors
[INFO] running `Command { std: "docker" "inspect" "2744e889222a70505ef41405b56651e76eaa6c8a4670512473de390c4956cc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2744e889222a70505ef41405b56651e76eaa6c8a4670512473de390c4956cc95", kill_on_drop: false }`
[INFO] [stdout] 2744e889222a70505ef41405b56651e76eaa6c8a4670512473de390c4956cc95
[INFO] testing tower-balance-0.3.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate tower-balance 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tower-balance 0.3.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-balance 0.3.0
[INFO] finished tweaking crates.io crate tower-balance 0.3.0
[INFO] tweaked toml for crates.io crate tower-balance 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate tower-balance 0.3.0 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 539a542c7da5efda6ec9a192cb96a1810f46346876e0c41a76818fd335b9d8ce
[INFO] running `Command { std: "docker" "start" "-a" "539a542c7da5efda6ec9a192cb96a1810f46346876e0c41a76818fd335b9d8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "539a542c7da5efda6ec9a192cb96a1810f46346876e0c41a76818fd335b9d8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539a542c7da5efda6ec9a192cb96a1810f46346876e0c41a76818fd335b9d8ce", kill_on_drop: false }`
[INFO] [stdout] 539a542c7da5efda6ec9a192cb96a1810f46346876e0c41a76818fd335b9d8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 133f273aa587b0b6b3150b9d3ecb2578b0be89247c038b01b28e7153e171235a
[INFO] running `Command { std: "docker" "start" "-a" "133f273aa587b0b6b3150b9d3ecb2578b0be89247c038b01b28e7153e171235a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling tokio v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling tracing-core v0.1.7
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tower-ready-cache v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling tracing v0.1.10
[INFO] [stderr]    Compiling pin-project v0.4.6
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-load v0.3.0
[INFO] [stderr]    Compiling tower-balance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/make.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/service.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/pool/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `Command { std: "docker" "inspect" "133f273aa587b0b6b3150b9d3ecb2578b0be89247c038b01b28e7153e171235a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133f273aa587b0b6b3150b9d3ecb2578b0be89247c038b01b28e7153e171235a", kill_on_drop: false }`
[INFO] [stdout] 133f273aa587b0b6b3150b9d3ecb2578b0be89247c038b01b28e7153e171235a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3a91bbf5b0074fcbf3c4a02ce6906fdc93a6e4ac17e900c8c893e05b3f15339
[INFO] running `Command { std: "docker" "start" "-a" "f3a91bbf5b0074fcbf3c4a02ce6906fdc93a6e4ac17e900c8c893e05b3f15339", kill_on_drop: false }`
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/make.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tower-balance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/p2c/service.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/pool/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower`
[INFO] [stdout]   --> examples/demo.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tower::util::ServiceExt;
[INFO] [stdout]    |     ^^^^^ use of undeclared crate or module `tower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower_limit`
[INFO] [stdout]   --> examples/demo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tower_limit::concurrency::ConcurrencyLimit;
[INFO] [stdout]    |     ^^^^^^^^^^^ use of undeclared crate or module `tower_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hdrhistogram`
[INFO] [stdout]  --> examples/demo.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hdrhistogram::Histogram;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `hdrhistogram`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]    --> examples/demo.rs:44:10
[INFO] [stdout]     |
[INFO] [stdout] 44  | #[tokio::main]
[INFO] [stdout]     |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:268:27
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub use tokio_macros::main;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tracing_subscriber`
[INFO] [stdout]   --> examples/demo.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 |     tracing::subscriber::set_global_default(tracing_subscriber::FmtSubscriber::default()).unwrap();
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `tracing_subscriber`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio_test`
[INFO] [stdout]  --> src/p2c/test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tokio_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tower_test`
[INFO] [stdout]  --> src/p2c/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tower_test::{assert_request_eq, mock};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tower_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio_test`
[INFO] [stdout]  --> src/pool/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tokio_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tower_test`
[INFO] [stdout]  --> src/pool/test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tower_test::{assert_request_eq, mock};
[INFO] [stdout]   |     ^^^^^^^^^^ use of undeclared crate or module `tower_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:10:10
[INFO] [stdout]     |
[INFO] [stdout] 10  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:18:10
[INFO] [stdout]     |
[INFO] [stdout] 18  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/p2c/test.rs:53:10
[INFO] [stdout]     |
[INFO] [stdout] 53  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:8:10
[INFO] [stdout]     |
[INFO] [stdout] 8   | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:32:10
[INFO] [stdout]     |
[INFO] [stdout] 32  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:84:10
[INFO] [stdout]     |
[INFO] [stdout] 84  | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/pool/test.rs:142:10
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[tokio::test]
[INFO] [stdout]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.6/src/lib.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub use tokio_macros::test;
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     = note: the item is gated behind the `macros` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |     assert_eq!(assert_ready_ok!(fut.poll()), "bar");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:139:16
[INFO] [stdout]     |
[INFO] [stdout] 139 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:131:16
[INFO] [stdout]     |
[INFO] [stdout] 131 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/pool/test.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/pool/test.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]    --> src/pool/test.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     assert_eq!(assert_ready_ok!(fut2.poll()), "bar");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 |     assert_eq!(assert_ready_ok!(fut1.poll()), "foo");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     assert_pending!(handle.as_mut().poll_request());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     assert_eq!(assert_ready_ok!(fut.poll()), "foobar");
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     assert_request_eq!(svc1, ()).send_response("foobar");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_pending!(fut.poll());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/pool/test.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/pool/test.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/pool/test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     assert_pending!(pool.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]    --> src/p2c/test.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/p2c/test.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         assert_ready_ok!(fut.poll());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]    --> src/p2c/test.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         assert_ready_ok!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |         assert_eq!(assert_ready_ok!(fut.poll()), "b");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         assert_request_eq!(handle_b, ()).send_response("b");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     assert_ready_ok!(
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |         assert_eq!(assert_ready_ok!(fut.poll()), "a");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         assert_request_eq!(handle_a, ()).send_response("a");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     assert_ready_ok!(
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     assert_eq!(assert_ready_ok!(fut.poll()), 1);
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stdout]   --> src/p2c/test.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_request_eq!(handle, ()).send_response(1);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stdout]   --> src/p2c/test.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stdout]   --> src/p2c/test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     assert_pending!(svc.poll_ready());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tower`
[INFO] [stdout]    --> examples/demo.rs:111:27
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 let svc = tower::service_fn(move |_| {
[INFO] [stdout]     |                           ^^^^^ use of undeclared crate or module `tower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/p2c/test.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |     handle_a.allow(0);
[INFO] [stdout]    |              ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/demo.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-balance` (example "demo") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/p2c/test.rs:67:14
[INFO] [stdout]    |
[INFO] [stdout] 67 |     handle_b.allow(0);
[INFO] [stdout]    |              ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/p2c/test.rs:109:51
[INFO] [stdout]     |
[INFO] [stdout] 109 |             if let Poll::Ready(Some((_, tx))) = h.as_mut().poll_request() {
[INFO] [stdout]     |                                                   ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/pool/test.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     svc1.allow(1);
[INFO] [stdout]    |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/pool/test.rs:64:10
[INFO] [stdout]    |
[INFO] [stdout] 64 |     svc2.allow(1);
[INFO] [stdout]    |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |     svc1.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:118:10
[INFO] [stdout]     |
[INFO] [stdout] 118 |     svc2.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 |     svc1.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/pool/test.rs:180:10
[INFO] [stdout]     |
[INFO] [stdout] 180 |     svc2.allow(1);
[INFO] [stdout]     |          ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 79 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-balance` (lib test) due to 80 previous errors
[INFO] running `Command { std: "docker" "inspect" "f3a91bbf5b0074fcbf3c4a02ce6906fdc93a6e4ac17e900c8c893e05b3f15339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a91bbf5b0074fcbf3c4a02ce6906fdc93a6e4ac17e900c8c893e05b3f15339", kill_on_drop: false }`
[INFO] [stdout] f3a91bbf5b0074fcbf3c4a02ce6906fdc93a6e4ac17e900c8c893e05b3f15339
