[INFO] fetching crate safina-executor 0.3.4...
[INFO] building safina-executor-0.3.4 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate safina-executor 0.3.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate safina-executor 0.3.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate safina-executor 0.3.4
[INFO] tweaked toml for crates.io crate safina-executor 0.3.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate safina-executor 0.3.4 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safina-timer v0.1.13
[INFO] [stderr]   Downloaded safina-sync v0.2.5
[INFO] [stderr]   Downloaded safina-threadpool v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d089db9a96adfa1568b2685ae6659c3cc13f59ee119f108bea836f4c7e29ebd
[INFO] running `Command { std: "docker" "start" "-a" "5d089db9a96adfa1568b2685ae6659c3cc13f59ee119f108bea836f4c7e29ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d089db9a96adfa1568b2685ae6659c3cc13f59ee119f108bea836f4c7e29ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d089db9a96adfa1568b2685ae6659c3cc13f59ee119f108bea836f4c7e29ebd", kill_on_drop: false }`
[INFO] [stdout] 5d089db9a96adfa1568b2685ae6659c3cc13f59ee119f108bea836f4c7e29ebd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf1618f6365e78ae7c39c53d93c6206fca44b0360c2593038af85aee5d328f31
[INFO] running `Command { std: "docker" "start" "-a" "cf1618f6365e78ae7c39c53d93c6206fca44b0360c2593038af85aee5d328f31", kill_on_drop: false }`
[INFO] [stderr]    Compiling safina-threadpool v0.2.5
[INFO] [stderr]    Compiling safina-sync v0.2.5
[INFO] [stderr]    Compiling safina-executor v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:309:46
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 309 -     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 309 +     pub fn spawn(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:327:52
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                                                    ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 327 -     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 327 +     pub fn spawn_unpin(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:362:52
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                                                    ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 362 -     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 362 +     pub fn block_on<R>(self: &Arc<Self>, fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout]     |                   ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 384 -         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout] 384 +         fut: impl Future<Output = R> + Unpin + 'static,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:496:24
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                        ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 496 - pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 496 + pub fn spawn(fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:514:30
[INFO] [stdout]     |
[INFO] [stdout] 514 | pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 514 - pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 514 + pub fn spawn_unpin(fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:563:30
[INFO] [stdout]     |
[INFO] [stdout] 563 | pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 563 - pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 563 + pub fn block_on<R>(fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:585:40
[INFO] [stdout]     |
[INFO] [stdout] 585 | pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout]     |                                        ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 585 - pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout] 585 + pub fn block_on_unpin<R>(mut fut: impl Future<Output = R> + Unpin + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "cf1618f6365e78ae7c39c53d93c6206fca44b0360c2593038af85aee5d328f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1618f6365e78ae7c39c53d93c6206fca44b0360c2593038af85aee5d328f31", kill_on_drop: false }`
[INFO] [stdout] cf1618f6365e78ae7c39c53d93c6206fca44b0360c2593038af85aee5d328f31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cde2aaa5cfe2f335aae9d956a71b877726ab64139a5f3bb295d985ad2e1dc1dc
[INFO] running `Command { std: "docker" "start" "-a" "cde2aaa5cfe2f335aae9d956a71b877726ab64139a5f3bb295d985ad2e1dc1dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling safina-timer v0.1.13
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:309:46
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 309 -     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 309 +     pub fn spawn(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:327:52
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                                                    ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 327 -     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 327 +     pub fn spawn_unpin(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:362:52
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                                                    ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 362 -     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 362 +     pub fn block_on<R>(self: &Arc<Self>, fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout]     |                   ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 384 -         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout] 384 +         fut: impl Future<Output = R> + Unpin + 'static,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:496:24
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                        ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 496 - pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 496 + pub fn spawn(fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:514:30
[INFO] [stdout]     |
[INFO] [stdout] 514 | pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 514 - pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 514 + pub fn spawn_unpin(fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:563:30
[INFO] [stdout]     |
[INFO] [stdout] 563 | pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 563 - pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 563 + pub fn block_on<R>(fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:585:40
[INFO] [stdout]     |
[INFO] [stdout] 585 | pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout]     |                                        ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 585 - pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout] 585 + pub fn block_on_unpin<R>(mut fut: impl Future<Output = R> + Unpin + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling safina-executor v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:309:46
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 309 -     pub fn spawn(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 309 +     pub fn spawn(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:327:52
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                                                    ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 327 -     pub fn spawn_unpin(self: &Arc<Self>, fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 327 +     pub fn spawn_unpin(self: &Arc<Self>, fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:362:52
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                                                    ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 362 -     pub fn block_on<R>(self: &Arc<Self>, fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 362 +     pub fn block_on<R>(self: &Arc<Self>, fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout]     |                   ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 384 -         fut: impl (Future<Output = R>) + Unpin + 'static,
[INFO] [stdout] 384 +         fut: impl Future<Output = R> + Unpin + 'static,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:496:24
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout]     |                        ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 496 - pub fn spawn(fut: impl (Future<Output = ()>) + Send + 'static) {
[INFO] [stdout] 496 + pub fn spawn(fut: impl Future<Output = ()> + Send + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:514:30
[INFO] [stdout]     |
[INFO] [stdout] 514 | pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout]     |                              ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 514 - pub fn spawn_unpin(fut: impl (Future<Output = ()>) + Send + Unpin + 'static) {
[INFO] [stdout] 514 + pub fn spawn_unpin(fut: impl Future<Output = ()> + Send + Unpin + 'static) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:563:30
[INFO] [stdout]     |
[INFO] [stdout] 563 | pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 563 - pub fn block_on<R>(fut: impl (Future<Output = R>) + 'static) -> R {
[INFO] [stdout] 563 + pub fn block_on<R>(fut: impl Future<Output = R> + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:585:40
[INFO] [stdout]     |
[INFO] [stdout] 585 | pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout]     |                                        ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 585 - pub fn block_on_unpin<R>(mut fut: impl (Future<Output = R>) + Unpin + 'static) -> R {
[INFO] [stdout] 585 + pub fn block_on_unpin<R>(mut fut: impl Future<Output = R> + Unpin + 'static) -> R {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "cde2aaa5cfe2f335aae9d956a71b877726ab64139a5f3bb295d985ad2e1dc1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cde2aaa5cfe2f335aae9d956a71b877726ab64139a5f3bb295d985ad2e1dc1dc", kill_on_drop: false }`
[INFO] [stdout] cde2aaa5cfe2f335aae9d956a71b877726ab64139a5f3bb295d985ad2e1dc1dc