[INFO] fetching crate tokio-vhost 0.1.1...
[INFO] checking tokio-vhost-0.1.1 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate tokio-vhost 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate tokio-vhost 0.1.1
[INFO] finished tweaking crates.io crate tokio-vhost 0.1.1
[INFO] tweaked toml for crates.io crate tokio-vhost 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-vhost 0.1.1 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-vhost 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2
[INFO] running `Command { std: "docker" "start" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking virtio-bindings v0.2.6
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]     Checking mio v1.1.0
[INFO] [stderr]     Checking vmm-sys-util v0.14.0
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tokio-eventfd v0.2.2
[INFO] [stderr]     Checking vm-memory v0.16.2
[INFO] [stderr]     Checking virtio-queue v0.16.0
[INFO] [stderr]     Checking tokio-vhost v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ready_tx` and `ready_rx` are never read
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct VirtQueue {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     ready_tx: watch::Sender<bool>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 61 |     ready_rx: watch::Receiver<bool>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cmsg_level` and `cmsg_type` are never read
[INFO] [stdout]   --> src/ancillary.rs:72:15
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Unknown { cmsg_level: i32, cmsg_type: i32 },
[INFO] [stdout]    |     -------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AncillaryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `capacity`, `is_empty`, `len`, `truncated`, and `clear` are never used
[INFO] [stdout]    --> src/ancillary.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl<'a> SocketAncillary<'a> {
[INFO] [stdout]     | ---------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 220 |     pub fn capacity(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |     pub fn truncated(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_NOTIFY_ON_EMPTY` is never used
[INFO] [stdout]   --> src/protocol.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const VIRTIO_F_NOTIFY_ON_EMPTY: u64 = 1 << 24;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_INDIRECT_DESC` is never used
[INFO] [stdout]   --> src/protocol.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const VIRTIO_F_INDIRECT_DESC: u64 = 1 << 28;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_EVENT_IDX` is never used
[INFO] [stdout]   --> src/protocol.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const VIRTIO_F_EVENT_IDX: u64 = 1 << 29;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SingleMemoryRegionDescription` is never constructed
[INFO] [stdout]   --> src/protocol.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct SingleMemoryRegionDescription {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_ref` and `into_inner` are never used
[INFO] [stdout]   --> src/read_with_fds.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl WithFds {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_ref(&self) -> &UnixStream {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn into_inner(self) -> UnixStream {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `GuestAddress`
[INFO] [stdout]    --> src/lib.rs:215:29
[INFO] [stdout]     |
[INFO] [stdout] 215 | ...                   guest_address.into(),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 215 -                             guest_address.into(),
[INFO] [stdout] 215 +                             guest_address,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 215 -                             guest_address.into(),
[INFO] [stdout] 215 +                             <GuestAddress as Into<_>>::into(guest_address),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `U32<LittleEndian>`
[INFO] [stdout]    --> src/lib.rs:285:32
[INFO] [stdout]     |
[INFO] [stdout] 285 |                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 285 -                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout] 285 +                     vring_idx: vring_state.vring_idx,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 285 -                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout] 285 +                     vring_idx: <U32<LittleEndian> as Into<_>>::into(vring_state.vring_idx),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-vhost` (lib test) due to 2 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `ready_tx` and `ready_rx` are never read
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct VirtQueue {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     ready_tx: watch::Sender<bool>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 61 |     ready_rx: watch::Receiver<bool>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cmsg_level` and `cmsg_type` are never read
[INFO] [stdout]   --> src/ancillary.rs:72:15
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Unknown { cmsg_level: i32, cmsg_type: i32 },
[INFO] [stdout]    |     -------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AncillaryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `capacity`, `is_empty`, `len`, `truncated`, and `clear` are never used
[INFO] [stdout]    --> src/ancillary.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl<'a> SocketAncillary<'a> {
[INFO] [stdout]     | ---------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 220 |     pub fn capacity(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |     pub fn truncated(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_NOTIFY_ON_EMPTY` is never used
[INFO] [stdout]   --> src/protocol.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const VIRTIO_F_NOTIFY_ON_EMPTY: u64 = 1 << 24;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_INDIRECT_DESC` is never used
[INFO] [stdout]   --> src/protocol.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const VIRTIO_F_INDIRECT_DESC: u64 = 1 << 28;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIRTIO_F_EVENT_IDX` is never used
[INFO] [stdout]   --> src/protocol.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const VIRTIO_F_EVENT_IDX: u64 = 1 << 29;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SingleMemoryRegionDescription` is never constructed
[INFO] [stdout]   --> src/protocol.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct SingleMemoryRegionDescription {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_ref` and `into_inner` are never used
[INFO] [stdout]   --> src/read_with_fds.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl WithFds {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_ref(&self) -> &UnixStream {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn into_inner(self) -> UnixStream {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `GuestAddress`
[INFO] [stdout]    --> src/lib.rs:215:29
[INFO] [stdout]     |
[INFO] [stdout] 215 | ...                   guest_address.into(),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 215 -                             guest_address.into(),
[INFO] [stdout] 215 +                             guest_address,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 215 -                             guest_address.into(),
[INFO] [stdout] 215 +                             <GuestAddress as Into<_>>::into(guest_address),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `U32<LittleEndian>`
[INFO] [stdout]    --> src/lib.rs:285:32
[INFO] [stdout]     |
[INFO] [stdout] 285 |                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 285 -                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout] 285 +                     vring_idx: vring_state.vring_idx,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 285 -                     vring_idx: vring_state.vring_idx.into(),
[INFO] [stdout] 285 +                     vring_idx: <U32<LittleEndian> as Into<_>>::into(vring_state.vring_idx),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-vhost` (lib) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2", kill_on_drop: false }`
[INFO] [stdout] 7cfe241e54960ad60a4553cc9bf9d7ecfb3fd0af2e8334ebaa3d99d521708fc2
