[INFO] fetching crate async-io-traits 0.1.0-wip...
[INFO] checking async-io-traits-0.1.0-wip against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate async-io-traits 0.1.0-wip into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate async-io-traits 0.1.0-wip on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-io-traits 0.1.0-wip
[INFO] finished tweaking crates.io crate async-io-traits 0.1.0-wip
[INFO] tweaked toml for crates.io crate async-io-traits 0.1.0-wip written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded owned-buf v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 256d316cc4729207ea0aa7f66dc9eab059944e4e54c6659b98d7effe12ac097a
[INFO] running `Command { std: "docker" "start" "-a" "256d316cc4729207ea0aa7f66dc9eab059944e4e54c6659b98d7effe12ac097a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256d316cc4729207ea0aa7f66dc9eab059944e4e54c6659b98d7effe12ac097a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256d316cc4729207ea0aa7f66dc9eab059944e4e54c6659b98d7effe12ac097a", kill_on_drop: false }`
[INFO] [stdout] 256d316cc4729207ea0aa7f66dc9eab059944e4e54c6659b98d7effe12ac097a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2713059ee23b23346edc56dd87b26a2c9a7a0eb98d2ae5d9ce39729ccc3e9939
[INFO] running `Command { std: "docker" "start" "-a" "2713059ee23b23346edc56dd87b26a2c9a7a0eb98d2ae5d9ce39729ccc3e9939", kill_on_drop: false }`
[INFO] [stderr]     Checking owned-buf v0.1.0
[INFO] [stderr]     Checking async-io-traits v0.1.0-wip (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/io.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]  --> src/io.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BorrowedCursor, IoSlice, IoSliceMut, SeekFrom};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]   = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]  --> src/io.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BorrowedCursor, IoSlice, IoSliceMut, SeekFrom};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]   = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]    --> src/io.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn non_blocking_read(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<NonBlocking<()>>;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]     = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_fn_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]    --> src/io.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn non_blocking_read(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<NonBlocking<()>>;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]     = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_fn_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]   --> src/io.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]   --> src/io.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn read_exact(&mut self, buf: &mut [u8]) -> Result<()> {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn read_exact(&mut self, buf: &mut [u8]) -> Result<()> {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 |     async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 |     async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |     async fn read_to_string(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |     async fn read_to_string(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |     async fn read_exact(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |     async fn read_exact(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |     async fn read_to_end(&mut self, buf: Vec<u8>) -> (Vec<u8>, Result<usize>) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |     async fn read_to_end(&mut self, buf: Vec<u8>) -> (Vec<u8>, Result<usize>) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/io.rs:179:36
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:179:46
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/io.rs:179:36
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:179:46
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:183:35
[INFO] [stdout]     |
[INFO] [stdout] 183 |     async fn read_line(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:183:35
[INFO] [stdout]     |
[INFO] [stdout] 183 |     async fn read_line(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:198:40
[INFO] [stdout]     |
[INFO] [stdout] 198 |     async fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:198:40
[INFO] [stdout]     |
[INFO] [stdout] 198 |     async fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:206:35
[INFO] [stdout]     |
[INFO] [stdout] 206 |     async fn write_all(&mut self, buf: &[u8]) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:206:35
[INFO] [stdout]     |
[INFO] [stdout] 206 |     async fn write_all(&mut self, buf: &[u8]) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:210:44
[INFO] [stdout]     |
[INFO] [stdout] 210 |     async fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:210:44
[INFO] [stdout]     |
[INFO] [stdout] 210 |     async fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fmt`
[INFO] [stdout]    --> src/io.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     async fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fmt`
[INFO] [stdout]    --> src/io.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     async fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:243:35
[INFO] [stdout]     |
[INFO] [stdout] 243 |     async fn write_all(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:243:35
[INFO] [stdout]     |
[INFO] [stdout] 243 |     async fn write_all(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-io-traits` (lib) due to 5 previous errors; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `async-io-traits` (lib test) due to 5 previous errors; 19 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2713059ee23b23346edc56dd87b26a2c9a7a0eb98d2ae5d9ce39729ccc3e9939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2713059ee23b23346edc56dd87b26a2c9a7a0eb98d2ae5d9ce39729ccc3e9939", kill_on_drop: false }`
[INFO] [stdout] 2713059ee23b23346edc56dd87b26a2c9a7a0eb98d2ae5d9ce39729ccc3e9939
[INFO] checking async-io-traits-0.1.0-wip against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate async-io-traits 0.1.0-wip into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate async-io-traits 0.1.0-wip on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-io-traits 0.1.0-wip
[INFO] finished tweaking crates.io crate async-io-traits 0.1.0-wip
[INFO] tweaked toml for crates.io crate async-io-traits 0.1.0-wip written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5bb688812207b614de8db15b2496cfc3cb6e2a343a1e8d9d0e3d07b91d5b2e9
[INFO] running `Command { std: "docker" "start" "-a" "f5bb688812207b614de8db15b2496cfc3cb6e2a343a1e8d9d0e3d07b91d5b2e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5bb688812207b614de8db15b2496cfc3cb6e2a343a1e8d9d0e3d07b91d5b2e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bb688812207b614de8db15b2496cfc3cb6e2a343a1e8d9d0e3d07b91d5b2e9", kill_on_drop: false }`
[INFO] [stdout] f5bb688812207b614de8db15b2496cfc3cb6e2a343a1e8d9d0e3d07b91d5b2e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89570ee2f75d31e26e0f3333791dc37cdc5f2926f91c869b61ff685a89c345f0
[INFO] running `Command { std: "docker" "start" "-a" "89570ee2f75d31e26e0f3333791dc37cdc5f2926f91c869b61ff685a89c345f0", kill_on_drop: false }`
[INFO] [stderr]     Checking owned-buf v0.1.0
[INFO] [stderr]     Checking async-io-traits v0.1.0-wip (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/io.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]  --> src/io.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BorrowedCursor, IoSlice, IoSliceMut, SeekFrom};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]   = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]  --> src/io.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BorrowedCursor, IoSlice, IoSliceMut, SeekFrom};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]   = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]    --> src/io.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn non_blocking_read(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<NonBlocking<()>>;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]     = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]   --> src/io.rs:27:50
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]    = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_fn_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_io_borrowed_buf'
[INFO] [stdout]    --> src/io.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn non_blocking_read(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<NonBlocking<()>>;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #117693 <https://github.com/rust-lang/rust/issues/117693> for more information
[INFO] [stdout]     = help: add `#![feature(core_io_borrowed_buf)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_fn_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_fn_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]   --> src/io.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]   --> src/io.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn read_buf(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn read_exact(&mut self, buf: &mut [u8]) -> Result<()> {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn read_exact(&mut self, buf: &mut [u8]) -> Result<()> {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     async fn read_buf_exact(&mut self, buf: &mut BorrowedCursor<'_>) -> Result<()> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 |     async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 |     async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |     async fn read_to_string(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |     async fn read_to_string(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |     async fn read_exact(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |     async fn read_exact(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |     async fn read_to_end(&mut self, buf: Vec<u8>) -> (Vec<u8>, Result<usize>) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/io.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |     async fn read_to_end(&mut self, buf: Vec<u8>) -> (Vec<u8>, Result<usize>) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/io.rs:179:36
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:179:46
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/io.rs:179:36
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:179:46
[INFO] [stdout]     |
[INFO] [stdout] 179 |     async fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
[INFO] [stdout]     |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:183:35
[INFO] [stdout]     |
[INFO] [stdout] 183 |     async fn read_line(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:183:35
[INFO] [stdout]     |
[INFO] [stdout] 183 |     async fn read_line(&mut self, buf: &mut String) -> Result<usize> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:198:40
[INFO] [stdout]     |
[INFO] [stdout] 198 |     async fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:198:40
[INFO] [stdout]     |
[INFO] [stdout] 198 |     async fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:206:35
[INFO] [stdout]     |
[INFO] [stdout] 206 |     async fn write_all(&mut self, buf: &[u8]) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:206:35
[INFO] [stdout]     |
[INFO] [stdout] 206 |     async fn write_all(&mut self, buf: &[u8]) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:210:44
[INFO] [stdout]     |
[INFO] [stdout] 210 |     async fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufs`
[INFO] [stdout]    --> src/io.rs:210:44
[INFO] [stdout]     |
[INFO] [stdout] 210 |     async fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_bufs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fmt`
[INFO] [stdout]    --> src/io.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     async fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fmt`
[INFO] [stdout]    --> src/io.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     async fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()> {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:243:35
[INFO] [stdout]     |
[INFO] [stdout] 243 |     async fn write_all(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/io.rs:243:35
[INFO] [stdout]     |
[INFO] [stdout] 243 |     async fn write_all(&mut self, buf: OwnedBuf) -> (OwnedBuf, Result<()>) {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-io-traits` (lib test) due to 5 previous errors; 19 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `async-io-traits` (lib) due to 5 previous errors; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "89570ee2f75d31e26e0f3333791dc37cdc5f2926f91c869b61ff685a89c345f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89570ee2f75d31e26e0f3333791dc37cdc5f2926f91c869b61ff685a89c345f0", kill_on_drop: false }`
[INFO] [stdout] 89570ee2f75d31e26e0f3333791dc37cdc5f2926f91c869b61ff685a89c345f0
