[INFO] cloning repository https://github.com/KaiUweCodes/ublk-nbd-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaiUweCodes/ublk-nbd-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiUweCodes%2Fublk-nbd-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiUweCodes%2Fublk-nbd-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9ef7c0890d72fd1c931b65cf572d3da9b72b02e
[INFO] checking KaiUweCodes/ublk-nbd-client against try#2c4819a380dbddb1f2a0f4405a49fb6ed90983ae for pr-152996
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiUweCodes%2Fublk-nbd-client" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KaiUweCodes/ublk-nbd-client
[INFO] finished tweaking git repo https://github.com/KaiUweCodes/ublk-nbd-client
[INFO] tweaked toml for git repo https://github.com/KaiUweCodes/ublk-nbd-client written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KaiUweCodes/ublk-nbd-client on toolchain 2c4819a380dbddb1f2a0f4405a49fb6ed90983ae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KaiUweCodes/ublk-nbd-client 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" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2af8357afe6b05a32563475d9a0c18bf0fb331c9a5de248340123035a3e61bbc
[INFO] running `Command { std: "docker" "start" "-a" "2af8357afe6b05a32563475d9a0c18bf0fb331c9a5de248340123035a3e61bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2af8357afe6b05a32563475d9a0c18bf0fb331c9a5de248340123035a3e61bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2af8357afe6b05a32563475d9a0c18bf0fb331c9a5de248340123035a3e61bbc", kill_on_drop: false }`
[INFO] [stdout] 2af8357afe6b05a32563475d9a0c18bf0fb331c9a5de248340123035a3e61bbc
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2c4819a380dbddb1f2a0f4405a49fb6ed90983ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 925239ef25f137df4a8c04f7a50f809159cf02f9fa7c7ab73d8c0717595337cc
[INFO] running `Command { std: "docker" "start" "-a" "925239ef25f137df4a8c04f7a50f809159cf02f9fa7c7ab73d8c0717595337cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling bindgen v0.69.5
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking anstyle v1.0.13
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]     Checking anstyle-query v1.1.5
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling io-uring v0.6.4
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking async-executor v1.14.0
[INFO] [stderr]     Checking itoa v1.0.17
[INFO] [stderr]     Checking clap_lex v1.0.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking async-fs v2.2.0
[INFO] [stderr]     Checking humantime v2.3.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking socket2 v0.6.2
[INFO] [stderr]     Checking clap_builder v4.5.60
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking nu-ansi-term v0.50.3
[INFO] [stderr]     Checking bytes v1.11.1
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking async-signal v0.2.13
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-process v2.5.0
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling clap_derive v4.5.55
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking smol v2.0.2
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking clap v4.5.60
[INFO] [stderr]     Checking tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling derive_setters v0.1.9
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]    Compiling libublk v0.3.5
[INFO] [stderr]     Checking ublk-nbd-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/client.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct NbdResponse {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     data: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NbdResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/client.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct NbdClient {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 48 |     /// Server configuration
[INFO] [stdout] 49 |     server: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     keepalive_interval: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     num_queues: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 59 |     queue_depth: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 60 |     block_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 61 |     size_mb: u64,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `handle`, `ublk_handle`, `op_type`, and `start_time` are never read
[INFO] [stdout]   --> src/client.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct PendingOpInfo {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 90 |     handle: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 91 |     ublk_handle: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 92 |     op_type: IoOperationType,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 93 |     start_time: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PendingOpInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_io_op` is never used
[INFO] [stdout]    --> src/client.rs:539:10
[INFO] [stdout]     |
[INFO] [stdout] 539 | async fn handle_io_op(
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Timeout` and `InvalidResponse` are never constructed
[INFO] [stdout]   --> src/connection.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum ConnectionError {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Timeout,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 34 |     #[error("Invalid response from server")]
[INFO] [stdout] 35 |     InvalidResponse,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionError` 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 `disconnect`, `write`, and `read` are never used
[INFO] [stdout]    --> src/connection.rs:115:18
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl NbdConnection {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub async fn disconnect(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub async fn write(&mut self, data: &[u8]) -> Result<usize, ConnectionError> {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub async fn read(&mut self, buf: &mut [u8]) -> Result<usize, ConnectionError> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `queued_at` is never read
[INFO] [stdout]   --> src/io_queue.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct PendingIo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub queued_at: Instant,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PendingIo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Read`, `Write`, `Flush`, `Discard`, and `WriteZeroes` are never constructed
[INFO] [stdout]   --> src/io_queue.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum IoOperationType {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] 27 |     Read,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 28 |     Write,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     Discard,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 31 |     WriteZeroes,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IoOperationType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `notify`, `max_size`, and `max_bytes` are never read
[INFO] [stdout]   --> src/io_queue.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct IoQueue {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     notify: Notify,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 44 |     /// Maximum number of operations to queue
[INFO] [stdout] 45 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     max_bytes: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/io_queue.rs:67:18
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl IoQueue {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub async fn enqueue(&self, io: PendingIo) -> Result<(), ()> {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub async fn dequeue(&self) -> Option<PendingIo> {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub async fn len(&self) -> usize {
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub async fn is_empty(&self) -> bool {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub async fn wait_for_operation(&self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     pub async fn clear(&self) {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     pub async fn stats(&self) -> QueueStats {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueueStats` is never constructed
[INFO] [stdout]    --> src/io_queue.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct QueueStats {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_FLAG_NONE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const NBD_CMD_FLAG_NONE: u16 = 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_FLAG_FUA` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const NBD_CMD_FLAG_FUA: u16 = 1 << 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_DISC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub const NBD_CMD_DISC: u16 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_CACHE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub const NBD_CMD_CACHE: u16 = 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_BLOCK_STATUS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub const NBD_CMD_BLOCK_STATUS: u16 = 7;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REPLY_MAGIC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const NBD_REPLY_MAGIC: u32 = 0x67446698;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_STRUCTURED_REPLY_MAGIC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const NBD_STRUCTURED_REPLY_MAGIC: u32 = 0x668e33ef;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_HAS_FLAGS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub const NBD_FLAG_HAS_FLAGS: u16 = 1 << 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_READ_ONLY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const NBD_FLAG_READ_ONLY: u16 = 1 << 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_FLUSH` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub const NBD_FLAG_FLUSH: u16 = 1 << 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_FUA` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const NBD_FLAG_FUA: u16 = 1 << 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_ROTATIONAL` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub const NBD_FLAG_ROTATIONAL: u16 = 1 << 4;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_TRIM` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub const NBD_FLAG_TRIM: u16 = 1 << 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_WRITE_ZEROES` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub const NBD_FLAG_WRITE_ZEROES: u16 = 1 << 6;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_DF` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub const NBD_FLAG_DF: u16 = 1 << 7;
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_MULTI_CONN` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub const NBD_FLAG_MULTI_CONN: u16 = 1 << 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_CAN_MULTI_CONN` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub const NBD_FLAG_CAN_MULTI_CONN: u16 = 1 << 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_SEND_CACHE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub const NBD_FLAG_SEND_CACHE: u16 = 1 << 10;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_SEND_FAST_ZERO` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:54:11
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub const NBD_FLAG_SEND_FAST_ZERO: u16 = 1 << 11;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_ABORT` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub const NBD_OPT_ABORT: u32 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_LIST` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:63:11
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub const NBD_OPT_LIST: u32 = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_STARTTLS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub const NBD_OPT_STARTTLS: u32 = 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_INFO` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:65:11
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub const NBD_OPT_INFO: u32 = 6;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_STRUCTURED_REPLY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:67:11
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub const NBD_OPT_STRUCTURED_REPLY: u32 = 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_SERVER` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub const NBD_REP_SERVER: u32 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_UNSUP` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub const NBD_REP_ERR_UNSUP: u32 = (1 << 31) | 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_POLICY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:75:11
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub const NBD_REP_ERR_POLICY: u32 = (1 << 31) | 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_INVALID` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:76:11
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub const NBD_REP_ERR_INVALID: u32 = (1 << 31) | 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_PLATFORM` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub const NBD_REP_ERR_PLATFORM: u32 = (1 << 31) | 4;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_INFO_NAME` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub const NBD_INFO_NAME: u16 = 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_INFO_DESCRIPTION` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:82:11
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub const NBD_INFO_DESCRIPTION: u16 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `min_block_size` and `max_block_size` are never read
[INFO] [stdout]   --> src/nbd_protocol.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct HandshakeReply {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub min_block_size: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub max_block_size: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HandshakeReply` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse_simple_reply` is never used
[INFO] [stdout]    --> src/nbd_protocol.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl NbdProtocol {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 332 |     pub fn parse_simple_reply(data: &[u8]) -> Result<(u32, u64, Vec<u8>)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/client.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct NbdResponse {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     data: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NbdResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/client.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct NbdClient {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 48 |     /// Server configuration
[INFO] [stdout] 49 |     server: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     keepalive_interval: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     num_queues: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 59 |     queue_depth: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 60 |     block_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 61 |     size_mb: u64,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `handle`, `ublk_handle`, `op_type`, and `start_time` are never read
[INFO] [stdout]   --> src/client.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct PendingOpInfo {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 90 |     handle: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 91 |     ublk_handle: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 92 |     op_type: IoOperationType,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 93 |     start_time: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PendingOpInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_io_op` is never used
[INFO] [stdout]    --> src/client.rs:539:10
[INFO] [stdout]     |
[INFO] [stdout] 539 | async fn handle_io_op(
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Timeout` and `InvalidResponse` are never constructed
[INFO] [stdout]   --> src/connection.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum ConnectionError {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Timeout,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 34 |     #[error("Invalid response from server")]
[INFO] [stdout] 35 |     InvalidResponse,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionError` 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 `disconnect`, `write`, and `read` are never used
[INFO] [stdout]    --> src/connection.rs:115:18
[INFO] [stdout]     |
[INFO] [stdout]  38 | impl NbdConnection {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub async fn disconnect(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub async fn write(&mut self, data: &[u8]) -> Result<usize, ConnectionError> {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub async fn read(&mut self, buf: &mut [u8]) -> Result<usize, ConnectionError> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `queued_at` is never read
[INFO] [stdout]   --> src/io_queue.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct PendingIo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub queued_at: Instant,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PendingIo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Write`, `Flush`, `Discard`, and `WriteZeroes` are never constructed
[INFO] [stdout]   --> src/io_queue.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum IoOperationType {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] 27 |     Read,
[INFO] [stdout] 28 |     Write,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     Discard,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 31 |     WriteZeroes,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IoOperationType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_empty`, `wait_for_operation`, `clear`, and `stats` are never used
[INFO] [stdout]    --> src/io_queue.rs:121:18
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl IoQueue {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub async fn is_empty(&self) -> bool {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub async fn wait_for_operation(&self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     pub async fn clear(&self) {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     pub async fn stats(&self) -> QueueStats {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueueStats` is never constructed
[INFO] [stdout]    --> src/io_queue.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct QueueStats {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_FLAG_NONE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const NBD_CMD_FLAG_NONE: u16 = 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_FLAG_FUA` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const NBD_CMD_FLAG_FUA: u16 = 1 << 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_DISC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub const NBD_CMD_DISC: u16 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_CACHE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub const NBD_CMD_CACHE: u16 = 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_CMD_BLOCK_STATUS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub const NBD_CMD_BLOCK_STATUS: u16 = 7;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REPLY_MAGIC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const NBD_REPLY_MAGIC: u32 = 0x67446698;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_STRUCTURED_REPLY_MAGIC` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const NBD_STRUCTURED_REPLY_MAGIC: u32 = 0x668e33ef;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_HAS_FLAGS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub const NBD_FLAG_HAS_FLAGS: u16 = 1 << 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_READ_ONLY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const NBD_FLAG_READ_ONLY: u16 = 1 << 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_FLUSH` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub const NBD_FLAG_FLUSH: u16 = 1 << 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_FUA` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const NBD_FLAG_FUA: u16 = 1 << 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_ROTATIONAL` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub const NBD_FLAG_ROTATIONAL: u16 = 1 << 4;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_TRIM` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub const NBD_FLAG_TRIM: u16 = 1 << 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_WRITE_ZEROES` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub const NBD_FLAG_WRITE_ZEROES: u16 = 1 << 6;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_DF` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub const NBD_FLAG_DF: u16 = 1 << 7;
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_MULTI_CONN` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub const NBD_FLAG_MULTI_CONN: u16 = 1 << 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_CAN_MULTI_CONN` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub const NBD_FLAG_CAN_MULTI_CONN: u16 = 1 << 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_SEND_CACHE` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub const NBD_FLAG_SEND_CACHE: u16 = 1 << 10;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_FLAG_SEND_FAST_ZERO` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:54:11
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub const NBD_FLAG_SEND_FAST_ZERO: u16 = 1 << 11;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_ABORT` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub const NBD_OPT_ABORT: u32 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_LIST` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:63:11
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub const NBD_OPT_LIST: u32 = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_STARTTLS` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub const NBD_OPT_STARTTLS: u32 = 5;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_INFO` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:65:11
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub const NBD_OPT_INFO: u32 = 6;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_OPT_STRUCTURED_REPLY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:67:11
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub const NBD_OPT_STRUCTURED_REPLY: u32 = 8;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_SERVER` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub const NBD_REP_SERVER: u32 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_UNSUP` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub const NBD_REP_ERR_UNSUP: u32 = (1 << 31) | 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_POLICY` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:75:11
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub const NBD_REP_ERR_POLICY: u32 = (1 << 31) | 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_INVALID` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:76:11
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub const NBD_REP_ERR_INVALID: u32 = (1 << 31) | 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_REP_ERR_PLATFORM` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub const NBD_REP_ERR_PLATFORM: u32 = (1 << 31) | 4;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_INFO_NAME` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub const NBD_INFO_NAME: u16 = 1;
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NBD_INFO_DESCRIPTION` is never used
[INFO] [stdout]   --> src/nbd_protocol.rs:82:11
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub const NBD_INFO_DESCRIPTION: u16 = 2;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `min_block_size` and `max_block_size` are never read
[INFO] [stdout]   --> src/nbd_protocol.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct HandshakeReply {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub min_block_size: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub max_block_size: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HandshakeReply` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse_simple_reply` is never used
[INFO] [stdout]    --> src/nbd_protocol.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl NbdProtocol {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 332 |     pub fn parse_simple_reply(data: &[u8]) -> Result<(u32, u64, Vec<u8>)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.78s
[INFO] running `Command { std: "docker" "inspect" "925239ef25f137df4a8c04f7a50f809159cf02f9fa7c7ab73d8c0717595337cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "925239ef25f137df4a8c04f7a50f809159cf02f9fa7c7ab73d8c0717595337cc", kill_on_drop: false }`
[INFO] [stdout] 925239ef25f137df4a8c04f7a50f809159cf02f9fa7c7ab73d8c0717595337cc