[INFO] fetching crate async-buf 0.1.0...
[INFO] checking async-buf-0.1.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate async-buf 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate async-buf 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-buf 0.1.0
[INFO] finished tweaking crates.io crate async-buf 0.1.0
[INFO] tweaked toml for crates.io crate async-buf 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fa76ae28df8d39946168525ce65def006ceeadeb59256a01fb1fb220ae2f5ec
[INFO] running `Command { std: "docker" "start" "-a" "3fa76ae28df8d39946168525ce65def006ceeadeb59256a01fb1fb220ae2f5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fa76ae28df8d39946168525ce65def006ceeadeb59256a01fb1fb220ae2f5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa76ae28df8d39946168525ce65def006ceeadeb59256a01fb1fb220ae2f5ec", kill_on_drop: false }`
[INFO] [stdout] 3fa76ae28df8d39946168525ce65def006ceeadeb59256a01fb1fb220ae2f5ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c159cc213aa4bf1ca11acb38ca44e91a8780dac2520aba33d922f0d0530a7533
[INFO] running `Command { std: "docker" "start" "-a" "c159cc213aa4bf1ca11acb38ca44e91a8780dac2520aba33d922f0d0530a7533", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking async-buf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `poll_ready`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(poll_ready)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `poll_ready`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(poll_ready)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:285:69
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).ready()??;
[INFO] [stdout]     |                                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).Ready()??;
[INFO] [stdout]     |                                                                     ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).is_ready()??;
[INFO] [stdout]     |                                                                     ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:285:69
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).ready()??;
[INFO] [stdout]     |                                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).Ready()??;
[INFO] [stdout]     |                                                                     ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).is_ready()??;
[INFO] [stdout]     |                                                                     ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:329:65
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:329:65
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:334:49
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:334:49
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:353:61
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:353:61
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:358:45
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:358:45
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:315:46
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                              ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                              ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:315:46
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                              ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                              ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:325:42
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:325:42
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:330:42
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/buf_reader.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:330:42
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/buf_reader.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-buf` (lib) due to 10 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `async-buf` (lib test) due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c159cc213aa4bf1ca11acb38ca44e91a8780dac2520aba33d922f0d0530a7533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c159cc213aa4bf1ca11acb38ca44e91a8780dac2520aba33d922f0d0530a7533", kill_on_drop: false }`
[INFO] [stdout] c159cc213aa4bf1ca11acb38ca44e91a8780dac2520aba33d922f0d0530a7533
[INFO] checking async-buf-0.1.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate async-buf 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate async-buf 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-buf 0.1.0
[INFO] finished tweaking crates.io crate async-buf 0.1.0
[INFO] tweaked toml for crates.io crate async-buf 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35b6bf9f43f9f55a577c5f0a3c5121eeecdfd1b5b36bd426b794c5c60a252215
[INFO] running `Command { std: "docker" "start" "-a" "35b6bf9f43f9f55a577c5f0a3c5121eeecdfd1b5b36bd426b794c5c60a252215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35b6bf9f43f9f55a577c5f0a3c5121eeecdfd1b5b36bd426b794c5c60a252215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b6bf9f43f9f55a577c5f0a3c5121eeecdfd1b5b36bd426b794c5c60a252215", kill_on_drop: false }`
[INFO] [stdout] 35b6bf9f43f9f55a577c5f0a3c5121eeecdfd1b5b36bd426b794c5c60a252215
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] d3dae50da55df3658f85aead3c286a31fb84501a82668c514957797c46fd9abd
[INFO] running `Command { std: "docker" "start" "-a" "d3dae50da55df3658f85aead3c286a31fb84501a82668c514957797c46fd9abd", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking async-buf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `poll_ready`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(poll_ready)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `poll_ready`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(poll_ready)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:285:69
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).ready()??;
[INFO] [stdout]     |                                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).Ready()??;
[INFO] [stdout]     |                                                                     ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).is_ready()??;
[INFO] [stdout]     |                                                                     ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:285:69
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).ready()??;
[INFO] [stdout]     |                                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).Ready()??;
[INFO] [stdout]     |                                                                     ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 285 |             *self.cap = self.inner.as_mut().poll_read(cx, self.buf).is_ready()??;
[INFO] [stdout]     |                                                                     ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:329:65
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:334:49
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:329:65
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 |                     let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:353:61
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:334:49
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                                 ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 334 |                     let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                                 ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:358:45
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:353:61
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).ready()?;
[INFO] [stdout]     |                                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).Ready()?;
[INFO] [stdout]     |                                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let v = s.inner.as_mut().poll_read(cx, buf).is_ready()?;
[INFO] [stdout]     |                                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:315:46
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                              ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                              ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_reader.rs:358:45
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).ready()?;
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).Ready()?;
[INFO] [stdout]     |                                             ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 358 |                 let r = s.poll_fill_buf(cx).is_ready()?;
[INFO] [stdout]     |                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:325:42
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:315:46
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                              ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 315 |             self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                              ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:330:42
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/buf_reader.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:325:42
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 325 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-buf` (lib test) due to 10 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `ready` found for enum `Poll` in the current scope
[INFO] [stdout]    --> src/buf_writer.rs:330:42
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).ready()??;
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a variant with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).Ready()??;
[INFO] [stdout]     |                                          ~~~~~
[INFO] [stdout] help: there is a method with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 330 |         self.as_mut().poll_flush_buf(cx).is_ready()??;
[INFO] [stdout]     |                                          ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/buf_reader.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-buf` (lib) due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d3dae50da55df3658f85aead3c286a31fb84501a82668c514957797c46fd9abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dae50da55df3658f85aead3c286a31fb84501a82668c514957797c46fd9abd", kill_on_drop: false }`
[INFO] [stdout] d3dae50da55df3658f85aead3c286a31fb84501a82668c514957797c46fd9abd
