[INFO] fetching crate compio-io 0.1.0-beta.1...
[INFO] checking compio-io-0.1.0-beta.1 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate compio-io 0.1.0-beta.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate compio-io 0.1.0-beta.1 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compio-io 0.1.0-beta.1
[INFO] finished tweaking crates.io crate compio-io 0.1.0-beta.1
[INFO] tweaked toml for crates.io crate compio-io 0.1.0-beta.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compio-runtime v0.2.0
[INFO] [stderr]   Downloaded compio-buf v0.2.0
[INFO] [stderr]   Downloaded os_pipe v1.1.5
[INFO] [stderr]   Downloaded compio-log v0.1.0
[INFO] [stderr]   Downloaded compio-driver v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 607d274dcebad599a01d34026d67b7708e7a32f78e7efcc47cef21b64daff361
[INFO] running `Command { std: "docker" "start" "-a" "607d274dcebad599a01d34026d67b7708e7a32f78e7efcc47cef21b64daff361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "607d274dcebad599a01d34026d67b7708e7a32f78e7efcc47cef21b64daff361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607d274dcebad599a01d34026d67b7708e7a32f78e7efcc47cef21b64daff361", kill_on_drop: false }`
[INFO] [stdout] 607d274dcebad599a01d34026d67b7708e7a32f78e7efcc47cef21b64daff361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f516685a4713318343f9474acaed49d03798ce181c62f0eb6c4df45d054ed5
[INFO] running `Command { std: "docker" "start" "-a" "15f516685a4713318343f9474acaed49d03798ce181c62f0eb6c4df45d054ed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking compio-log v0.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking compio-buf v0.2.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking os_pipe v1.1.5
[INFO] [stderr]     Checking compio-io v0.1.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking compio-driver v0.2.0
[INFO] [stdout] error: You must choose at least one of these features: ["io-uring", "polling"]
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | compile_error!("You must choose at least one of these features: [\"io-uring\", \"polling\"]");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `polling`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use polling::{Event, Events, PollMode, Poller};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `polling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `polling`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/op.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use polling::Event;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `polling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:348:46
[INFO] [stdout]     |
[INFO] [stdout] 348 |         let (notify_reader, notify_writer) = os_pipe::pipe()?;
[INFO] [stdout]     |                                              ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:342:20
[INFO] [stdout]     |
[INFO] [stdout] 342 |     notify_reader: os_pipe::PipeReader,
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:343:20
[INFO] [stdout]     |
[INFO] [stdout] 343 |     notify_writer: os_pipe::PipeWriter,
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:388:20
[INFO] [stdout]     |
[INFO] [stdout] 388 |     fn new(sender: os_pipe::PipeWriter) -> Self {
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:384:13
[INFO] [stdout]     |
[INFO] [stdout] 384 |     sender: os_pipe::PipeWriter,
[INFO] [stdout]     |             ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compio-driver` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]   --> src/buffer.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl Buffer {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15f516685a4713318343f9474acaed49d03798ce181c62f0eb6c4df45d054ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f516685a4713318343f9474acaed49d03798ce181c62f0eb6c4df45d054ed5", kill_on_drop: false }`
[INFO] [stdout] 15f516685a4713318343f9474acaed49d03798ce181c62f0eb6c4df45d054ed5
[INFO] checking compio-io-0.1.0-beta.1 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate compio-io 0.1.0-beta.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate compio-io 0.1.0-beta.1 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compio-io 0.1.0-beta.1
[INFO] finished tweaking crates.io crate compio-io 0.1.0-beta.1
[INFO] tweaked toml for crates.io crate compio-io 0.1.0-beta.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a956fcebb3daa59cce6832d824b31ee3e38c6d3127b867ac33ada8a7eb1b38b
[INFO] running `Command { std: "docker" "start" "-a" "6a956fcebb3daa59cce6832d824b31ee3e38c6d3127b867ac33ada8a7eb1b38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a956fcebb3daa59cce6832d824b31ee3e38c6d3127b867ac33ada8a7eb1b38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a956fcebb3daa59cce6832d824b31ee3e38c6d3127b867ac33ada8a7eb1b38b", kill_on_drop: false }`
[INFO] [stdout] 6a956fcebb3daa59cce6832d824b31ee3e38c6d3127b867ac33ada8a7eb1b38b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe62814ce21a1087710dae93548e2496d780f81cfd399e66578c43d49436a589
[INFO] running `Command { std: "docker" "start" "-a" "fe62814ce21a1087710dae93548e2496d780f81cfd399e66578c43d49436a589", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking compio-log v0.1.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking compio-buf v0.2.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking os_pipe v1.1.5
[INFO] [stderr]     Checking compio-io v0.1.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking compio-driver v0.2.0
[INFO] [stdout] error: You must choose at least one of these features: ["io-uring", "polling"]
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | compile_error!("You must choose at least one of these features: [\"io-uring\", \"polling\"]");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `polling`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use polling::{Event, Events, PollMode, Poller};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `polling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `polling`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/op.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use polling::Event;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `polling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:348:46
[INFO] [stdout]     |
[INFO] [stdout] 348 |         let (notify_reader, notify_writer) = os_pipe::pipe()?;
[INFO] [stdout]     |                                              ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:342:20
[INFO] [stdout]     |
[INFO] [stdout] 342 |     notify_reader: os_pipe::PipeReader,
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:343:20
[INFO] [stdout]     |
[INFO] [stdout] 343 |     notify_writer: os_pipe::PipeWriter,
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:388:20
[INFO] [stdout]     |
[INFO] [stdout] 388 |     fn new(sender: os_pipe::PipeWriter) -> Self {
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `os_pipe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compio-driver-0.2.0/src/poll/mod.rs:384:13
[INFO] [stdout]     |
[INFO] [stdout] 384 |     sender: os_pipe::PipeWriter,
[INFO] [stdout]     |             ^^^^^^^ use of undeclared crate or module `os_pipe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compio-driver` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]   --> src/buffer.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl Buffer {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe62814ce21a1087710dae93548e2496d780f81cfd399e66578c43d49436a589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe62814ce21a1087710dae93548e2496d780f81cfd399e66578c43d49436a589", kill_on_drop: false }`
[INFO] [stdout] fe62814ce21a1087710dae93548e2496d780f81cfd399e66578c43d49436a589
