[INFO] crate tower-balance 0.3.0 is already in cache
[INFO] testing tower-balance-0.3.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate tower-balance 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tower-balance 0.3.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/source/Cargo.toml
[INFO] crate crates.io crate tower-balance 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6d8a2f08153ac4aa97c610b9aeb40b8cecbf5ba6409e03720f1589b8f6b12021
[INFO] running `"docker" "start" "-a" "6d8a2f08153ac4aa97c610b9aeb40b8cecbf5ba6409e03720f1589b8f6b12021"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.7
[INFO] [stderr]    Compiling tokio v0.2.6
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.13s
[INFO] running `"docker" "inspect" "6d8a2f08153ac4aa97c610b9aeb40b8cecbf5ba6409e03720f1589b8f6b12021"`
[INFO] running `"docker" "rm" "-f" "6d8a2f08153ac4aa97c610b9aeb40b8cecbf5ba6409e03720f1589b8f6b12021"`
[INFO] [stdout] 6d8a2f08153ac4aa97c610b9aeb40b8cecbf5ba6409e03720f1589b8f6b12021
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60f9b8e5d14075dbe3851784c5f7949ca73d197f0beba1f8e0a4cc0f04400f4d
[INFO] running `"docker" "start" "-a" "60f9b8e5d14075dbe3851784c5f7949ca73d197f0beba1f8e0a4cc0f04400f4d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tower-balance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `tower`
[INFO] [stderr]   --> examples/demo.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use tower::util::ServiceExt;
[INFO] [stderr]    |     ^^^^^ use of undeclared type or module `tower`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `tower_limit`
[INFO] [stderr]   --> examples/demo.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tower_limit::concurrency::ConcurrencyLimit;
[INFO] [stderr]    |     ^^^^^^^^^^^ use of undeclared type or module `tower_limit`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `hdrhistogram`
[INFO] [stderr]  --> examples/demo.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use hdrhistogram::Histogram;
[INFO] [stderr]   |     ^^^^^^^^^^^^ use of undeclared type or module `hdrhistogram`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stderr]   --> examples/demo.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 | #[tokio::main]
[INFO] [stderr]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `tracing_subscriber`
[INFO] [stderr]   --> examples/demo.rs:46:45
[INFO] [stderr]    |
[INFO] [stderr] 46 |     tracing::subscriber::set_global_default(tracing_subscriber::FmtSubscriber::default()).unwrap();
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^ use of undeclared type or module `tracing_subscriber`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `tower`
[INFO] [stderr]    --> examples/demo.rs:111:27
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 let svc = tower::service_fn(move |_| {
[INFO] [stderr]     |                           ^^^^^ use of undeclared type or module `tower`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `ConcurrencyLimit`
[INFO] [stderr]    --> examples/demo.rs:125:28
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 (instance, ConcurrencyLimit::new(svc, ENDPOINT_CAPACITY))
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^ use of undeclared type or module `ConcurrencyLimit`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `ConcurrencyLimit`
[INFO] [stderr]    --> examples/demo.rs:144:19
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let service = ConcurrencyLimit::new(lb, CONCURRENCY);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^ use of undeclared type or module `ConcurrencyLimit`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `ConcurrencyLimit` in this scope
[INFO] [stderr]    --> examples/demo.rs:102:15
[INFO] [stderr]     |
[INFO] [stderr] 102 |     Service = ConcurrencyLimit<
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_test`
[INFO] [stderr]  --> src/p2c/test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `tokio_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tower_test`
[INFO] [stderr]  --> src/p2c/test.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tower_test::{assert_request_eq, mock};
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `tower_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tokio_test`
[INFO] [stderr]  --> src/pool/test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio_test::{assert_pending, assert_ready, assert_ready_ok, task};
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `tokio_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tower_test`
[INFO] [stderr]  --> src/pool/test.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tower_test::{assert_request_eq, mock};
[INFO] [stderr]   |     ^^^^^^^^^^ use of undeclared type or module `tower_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]   --> src/p2c/test.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[tokio::test]
[INFO] [stderr]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]   --> src/p2c/test.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[tokio::test]
[INFO] [stderr]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]   --> src/p2c/test.rs:53:10
[INFO] [stderr]    |
[INFO] [stderr] 53 | #[tokio::test]
[INFO] [stderr]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]  --> src/pool/test.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[tokio::test]
[INFO] [stderr]   |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]   --> src/pool/test.rs:32:10
[INFO] [stderr]    |
[INFO] [stderr] 32 | #[tokio::test]
[INFO] [stderr]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]   --> src/pool/test.rs:84:10
[INFO] [stderr]    |
[INFO] [stderr] 84 | #[tokio::test]
[INFO] [stderr]    |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stderr]    --> src/pool/test.rs:142:10
[INFO] [stderr]     |
[INFO] [stderr] 142 | #[tokio::test]
[INFO] [stderr]     |          ^^^^ could not find `test` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:189:16
[INFO] [stderr]     |
[INFO] [stderr] 189 |     assert_eq!(assert_ready_ok!(fut.poll()), "bar");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:181:5
[INFO] [stderr]     |
[INFO] [stderr] 181 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]    --> src/pool/test.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:169:16
[INFO] [stderr]     |
[INFO] [stderr] 169 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]    --> src/pool/test.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:139:16
[INFO] [stderr]     |
[INFO] [stderr] 139 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:131:16
[INFO] [stderr]     |
[INFO] [stderr] 131 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     assert_request_eq!(svc2, ()).send_response("foo");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]    --> src/pool/test.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |     assert_eq!(assert_ready_ok!(fut.poll()), "foo");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/pool/test.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]    --> src/pool/test.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:81:16
[INFO] [stderr]    |
[INFO] [stderr] 81 |     assert_eq!(assert_ready_ok!(fut2.poll()), "bar");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:80:16
[INFO] [stderr]    |
[INFO] [stderr] 80 |     assert_eq!(assert_ready_ok!(fut1.poll()), "foo");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     assert_request_eq!(svc2, ()).send_response("bar");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     assert_request_eq!(svc1, ()).send_response("foo");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     assert_pending!(handle.as_mut().poll_request());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc2_m, 0));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |     assert_eq!(assert_ready_ok!(fut.poll()), "foobar");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     assert_request_eq!(svc1, ()).send_response("foobar");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     assert_pending!(fut.poll());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/pool/test.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     assert_ready_ok!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/pool/test.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     assert_request_eq!(handle, ()).send_response(load::Constant::new(svc1_m, 0));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/pool/test.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     assert_pending!(pool.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]    --> src/p2c/test.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     assert_pending!(svc.poll_ready());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/p2c/test.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         assert_ready_ok!(fut.poll());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]    --> src/p2c/test.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         assert_ready_ok!(
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:96:20
[INFO] [stderr]    |
[INFO] [stderr] 96 |         assert_eq!(assert_ready_ok!(fut.poll()), "b");
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/p2c/test.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         assert_request_eq!(handle_b, ()).send_response("b");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     assert_ready_ok!(
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:84:20
[INFO] [stderr]    |
[INFO] [stderr] 84 |         assert_eq!(assert_ready_ok!(fut.poll()), "a");
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/p2c/test.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         assert_request_eq!(handle_a, ()).send_response("a");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     assert_ready_ok!(
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/p2c/test.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_pending!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/p2c/test.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     assert_pending!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     assert_eq!(assert_ready_ok!(fut.poll()), 1);
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_request_eq`
[INFO] [stderr]   --> src/p2c/test.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     assert_request_eq!(handle, ()).send_response(1);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_ready_ok`
[INFO] [stderr]   --> src/p2c/test.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     assert_ready_ok!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/p2c/test.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     assert_pending!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert_pending`
[INFO] [stderr]   --> src/p2c/test.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     assert_pending!(svc.poll_ready());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `main` has invalid return type `impl core::future::future::Future`
[INFO] [stderr]   --> examples/demo.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 | async fn main() {
[INFO] [stderr]    |                 ^ `main` can only return types that implement `std::process::Termination`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using `()`, or a `Result`
[INFO] [stderr] 
[INFO] [stderr] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stderr]   --> examples/demo.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | async fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0412, E0432, E0433, E0752.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `tower-balance`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:66:14
[INFO] [stderr]    |
[INFO] [stderr] 66 |     handle_a.allow(0);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_a` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:67:14
[INFO] [stderr]    |
[INFO] [stderr] 67 |     handle_b.allow(0);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_b` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:75:14
[INFO] [stderr]    |
[INFO] [stderr] 75 |     handle_a.allow(1);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_a` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:76:14
[INFO] [stderr]    |
[INFO] [stderr] 76 |     handle_b.allow(0);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_b` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:87:14
[INFO] [stderr]    |
[INFO] [stderr] 87 |     handle_a.allow(0);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_a` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 |     handle_b.allow(1);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_b` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/p2c/test.rs:99:14
[INFO] [stderr]    |
[INFO] [stderr] 99 |     handle_a.allow(1);
[INFO] [stderr]    |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `handle_a` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/p2c/test.rs:100:14
[INFO] [stderr]     |
[INFO] [stderr] 100 |     handle_b.allow(1);
[INFO] [stderr]     |              ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `handle_b` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_mut` found for mutable reference `&mut &mut std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/p2c/test.rs:109:51
[INFO] [stderr]     |
[INFO] [stderr] 109 |             if let Poll::Ready(Some((_, tx))) = h.as_mut().poll_request() {
[INFO] [stderr]     |                                                   ^^^^^^ method not found in `&mut &mut std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `h` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for mutable reference `&mut &mut std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/p2c/test.rs:112:19
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 h.allow(0);
[INFO] [stderr]     |                   ^^^^^ method not found in `&mut &mut std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `h` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `send_error` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/p2c/test.rs:118:14
[INFO] [stderr]     |
[INFO] [stderr] 118 |     handle_a.send_error("endpoint lost");
[INFO] [stderr]     |              ^^^^^^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `handle_a` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/pool/test.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 |     svc1.allow(1);
[INFO] [stderr]    |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `svc1` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]   --> src/pool/test.rs:64:10
[INFO] [stderr]    |
[INFO] [stderr] 64 |     svc2.allow(1);
[INFO] [stderr]    |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `svc2` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:102:10
[INFO] [stderr]     |
[INFO] [stderr] 102 |     svc1.allow(1);
[INFO] [stderr]     |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc1` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:118:10
[INFO] [stderr]     |
[INFO] [stderr] 118 |     svc2.allow(1);
[INFO] [stderr]     |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc2` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:134:10
[INFO] [stderr]     |
[INFO] [stderr] 134 |     svc2.allow(1);
[INFO] [stderr]     |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc2` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:161:10
[INFO] [stderr]     |
[INFO] [stderr] 161 |     svc1.allow(1);
[INFO] [stderr]     |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc1` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `send_error` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:172:10
[INFO] [stderr]     |
[INFO] [stderr] 172 |     svc1.send_error("ouch");
[INFO] [stderr]     |          ^^^^^^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc1` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `allow` found for struct `std::pin::Pin<&mut _>` in the current scope
[INFO] [stderr]    --> src/pool/test.rs:180:10
[INFO] [stderr]     |
[INFO] [stderr] 180 |     svc2.allow(1);
[INFO] [stderr]     |          ^^^^^ method not found in `std::pin::Pin<&mut _>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `svc2` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 89 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `tower-balance`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "60f9b8e5d14075dbe3851784c5f7949ca73d197f0beba1f8e0a4cc0f04400f4d"`
[INFO] running `"docker" "rm" "-f" "60f9b8e5d14075dbe3851784c5f7949ca73d197f0beba1f8e0a4cc0f04400f4d"`
[INFO] [stdout] 60f9b8e5d14075dbe3851784c5f7949ca73d197f0beba1f8e0a4cc0f04400f4d