[INFO] fetching crate blocking 1.2.0...
[INFO] checking blocking-1.2.0 against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692
[INFO] extracting crate blocking 1.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blocking 1.2.0 on toolchain 8ea250bdb76176ecb0225baa34aa634b024ae0e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blocking 1.2.0
[INFO] finished tweaking crates.io crate blocking 1.2.0
[INFO] tweaked toml for crates.io crate blocking 1.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate blocking 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f766df30decaa9c6d72abd1c621800b6684f397e642033b2ffdd4075f47df29c
[INFO] running `Command { std: "docker" "start" "-a" "f766df30decaa9c6d72abd1c621800b6684f397e642033b2ffdd4075f47df29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f766df30decaa9c6d72abd1c621800b6684f397e642033b2ffdd4075f47df29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f766df30decaa9c6d72abd1c621800b6684f397e642033b2ffdd4075f47df29c", kill_on_drop: false }`
[INFO] [stdout] f766df30decaa9c6d72abd1c621800b6684f397e642033b2ffdd4075f47df29c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d94e580f1237506e4fdcad59f77ba89be5ea6d922f5ab351c7d8fb97b6268e6d
[INFO] running `Command { std: "docker" "start" "-a" "d94e580f1237506e4fdcad59f77ba89be5ea6d922f5ab351c7d8fb97b6268e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking blocking v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0391]: cycle detected when type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read`
[INFO] [stdout]    --> src/lib.rs:696:5
[INFO] [stdout]     |
[INFO] [stdout] 696 | /     fn poll_read(
[INFO] [stdout] 697 | |         mut self: Pin<&mut Self>,
[INFO] [stdout] 698 | |         cx: &mut Context<'_>,
[INFO] [stdout] 699 | |         buf: &mut [u8],
[INFO] [stdout] 700 | |     ) -> Poll<io::Result<usize>> {
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout] note: ...which requires generator glue MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires elaborating drops for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires borrow-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires unsafety-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires building MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     = note: ...which again requires type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write`
[INFO] [stdout]    --> src/lib.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 | /     fn poll_write(
[INFO] [stdout] 765 | |         mut self: Pin<&mut Self>,
[INFO] [stdout] 766 | |         cx: &mut Context<'_>,
[INFO] [stdout] 767 | |         buf: &[u8],
[INFO] [stdout] 768 | |     ) -> Poll<io::Result<usize>> {
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout] note: ...which requires generator glue MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires elaborating drops for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires borrow-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires unsafety-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires building MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     = note: ...which again requires type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blocking` due to 3 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0391]: cycle detected when type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read`
[INFO] [stdout]    --> src/lib.rs:696:5
[INFO] [stdout]     |
[INFO] [stdout] 696 | /     fn poll_read(
[INFO] [stdout] 697 | |         mut self: Pin<&mut Self>,
[INFO] [stdout] 698 | |         cx: &mut Context<'_>,
[INFO] [stdout] 699 | |         buf: &mut [u8],
[INFO] [stdout] 700 | |     ) -> Poll<io::Result<usize>> {
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout] note: ...which requires generator glue MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires elaborating drops for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires borrow-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires unsafety-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires building MIR for `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:724:59
[INFO] [stdout]     |
[INFO] [stdout] 724 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 725 | |                         // Copy bytes from the I/O handle into the pipe until the pipe is closed or
[INFO] [stdout] 726 | |                         // an error occurs.
[INFO] [stdout] 727 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 733 | |                         }
[INFO] [stdout] 734 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     = note: ...which again requires type-checking `<impl at src/lib.rs:695:1: 695:56>::poll_read`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write`
[INFO] [stdout]    --> src/lib.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 | /     fn poll_write(
[INFO] [stdout] 765 | |         mut self: Pin<&mut Self>,
[INFO] [stdout] 766 | |         cx: &mut Context<'_>,
[INFO] [stdout] 767 | |         buf: &[u8],
[INFO] [stdout] 768 | |     ) -> Poll<io::Result<usize>> {
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout] note: ...which requires generator glue MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires elaborating drops for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires borrow-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires processing MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires unsafety-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires building MIR for `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] note: ...which requires type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write::{closure#0}`...
[INFO] [stdout]    --> src/lib.rs:792:59
[INFO] [stdout]     |
[INFO] [stdout] 792 |                       let task = Executor::spawn(async move {
[INFO] [stdout]     |  ___________________________________________________________^
[INFO] [stdout] 793 | |                         // Copy bytes from the pipe into the I/O handle until the pipe is closed or an
[INFO] [stdout] 794 | |                         // error occurs. Flush the I/O handle at the end.
[INFO] [stdout] 795 | |                         loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 804 | |                         }
[INFO] [stdout] 805 | |                     });
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     = note: ...which again requires type-checking `<impl at src/lib.rs:763:1: 763:58>::poll_write`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blocking` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d94e580f1237506e4fdcad59f77ba89be5ea6d922f5ab351c7d8fb97b6268e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94e580f1237506e4fdcad59f77ba89be5ea6d922f5ab351c7d8fb97b6268e6d", kill_on_drop: false }`
[INFO] [stdout] d94e580f1237506e4fdcad59f77ba89be5ea6d922f5ab351c7d8fb97b6268e6d