[INFO] fetching crate tokio-nbd 0.3.0...
[INFO] building tokio-nbd-0.3.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate tokio-nbd 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate tokio-nbd 0.3.0
[INFO] finished tweaking crates.io crate tokio-nbd 0.3.0
[INFO] tweaked toml for crates.io crate tokio-nbd 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-nbd 0.3.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-nbd 0.3.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded int-enum v1.2.0
[INFO] [stderr]   Downloaded darling_core v0.21.1
[INFO] [stderr]   Downloaded darling v0.21.1
[INFO] [stderr]   Downloaded darling_macro v0.21.1
[INFO] [stderr]   Downloaded bon-macros v3.6.5
[INFO] [stderr]   Downloaded bon v3.6.5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1582eba6a50b11abaa3fbc4e7fb05a905d687cbdb143f845b2e876a0520b07db
[INFO] running `Command { std: "docker" "start" "-a" "1582eba6a50b11abaa3fbc4e7fb05a905d687cbdb143f845b2e876a0520b07db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1582eba6a50b11abaa3fbc4e7fb05a905d687cbdb143f845b2e876a0520b07db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1582eba6a50b11abaa3fbc4e7fb05a905d687cbdb143f845b2e876a0520b07db", kill_on_drop: false }`
[INFO] [stdout] 1582eba6a50b11abaa3fbc4e7fb05a905d687cbdb143f845b2e876a0520b07db
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 220fa638ec4f27717dd64cfe759f27a86a576d63bad2433680afbb2a59f12c86
[INFO] running `Command { std: "docker" "start" "-a" "220fa638ec4f27717dd64cfe759f27a86a576d63bad2433680afbb2a59f12c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.21.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling int-enum v1.2.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling darling_macro v0.21.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling darling v0.21.1
[INFO] [stderr]    Compiling bon-macros v3.6.5
[INFO] [stderr]    Compiling bon v3.6.5
[INFO] [stderr]    Compiling tokio-nbd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/device.rs:377:9
[INFO] [stdout]     |
[INFO] [stdout] 377 |         size: u64,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 377 |         _size: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 377 -         size: u64,
[INFO] [stdout] 377 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 398 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 398 -         offset: u64,
[INFO] [stdout] 398 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:399:9
[INFO] [stdout]     |
[INFO] [stdout] 399 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 399 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 399 -         length: u32,
[INFO] [stdout] 399 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 422 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 422 -         offset: u64,
[INFO] [stdout] 422 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:423:9
[INFO] [stdout]     |
[INFO] [stdout] 423 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 423 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 423 -         length: u32,
[INFO] [stdout] 423 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error` and `cookie` are never read
[INFO] [stdout]   --> src/io/command_reply.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         struct SimpleReplyRaw<'a> {
[INFO] [stdout]    |                -------------- fields in this struct
[INFO] [stdout] 51 |             error: &'a u32,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 52 |             cookie: &'a u64,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SimpleReplyRaw` 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: variant `MetaContext` is never constructed
[INFO] [stdout]    --> src/option_reply.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub(crate) enum OptionReply {
[INFO] [stdout]     |                 ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 117 |     MetaContext(u32, String),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionReply` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/option_request.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |     SetMetaContext(Vec<u8>),
[INFO] [stdout]    |     -------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 96 -     SetMetaContext(Vec<u8>),
[INFO] [stdout] 96 +     SetMetaContext(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/option_request.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |     ExtendedHeaders(Vec<u8>),
[INFO] [stdout]     |     --------------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 100 -     ExtendedHeaders(Vec<u8>),
[INFO] [stdout] 100 +     ExtendedHeaders(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:625:9
[INFO] [stdout]     |
[INFO] [stdout] 625 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 626 |         request: &OptionRequest,
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<T>), OptionReplyError> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<'_, T>), OptionReplyError> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:773:9
[INFO] [stdout]     |
[INFO] [stdout] 773 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<T>>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<'_, T>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.65s
[INFO] running `Command { std: "docker" "inspect" "220fa638ec4f27717dd64cfe759f27a86a576d63bad2433680afbb2a59f12c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220fa638ec4f27717dd64cfe759f27a86a576d63bad2433680afbb2a59f12c86", kill_on_drop: false }`
[INFO] [stdout] 220fa638ec4f27717dd64cfe759f27a86a576d63bad2433680afbb2a59f12c86
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaec4a725dd9e196b9def0bec1692a933737a77d87437592c74239c846f88e8f
[INFO] running `Command { std: "docker" "start" "-a" "aaec4a725dd9e196b9def0bec1692a933737a77d87437592c74239c846f88e8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tokio-nbd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/device.rs:377:9
[INFO] [stdout]     |
[INFO] [stdout] 377 |         size: u64,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 377 |         _size: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 377 -         size: u64,
[INFO] [stdout] 377 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 398 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 398 -         offset: u64,
[INFO] [stdout] 398 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:399:9
[INFO] [stdout]     |
[INFO] [stdout] 399 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 399 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 399 -         length: u32,
[INFO] [stdout] 399 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 422 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 422 -         offset: u64,
[INFO] [stdout] 422 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:423:9
[INFO] [stdout]     |
[INFO] [stdout] 423 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 423 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 423 -         length: u32,
[INFO] [stdout] 423 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error` and `cookie` are never read
[INFO] [stdout]   --> src/io/command_reply.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         struct SimpleReplyRaw<'a> {
[INFO] [stdout]    |                -------------- fields in this struct
[INFO] [stdout] 51 |             error: &'a u32,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 52 |             cookie: &'a u64,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SimpleReplyRaw` 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: variant `MetaContext` is never constructed
[INFO] [stdout]    --> src/option_reply.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub(crate) enum OptionReply {
[INFO] [stdout]     |                 ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 117 |     MetaContext(u32, String),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionReply` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/option_request.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |     SetMetaContext(Vec<u8>),
[INFO] [stdout]    |     -------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 96 -     SetMetaContext(Vec<u8>),
[INFO] [stdout] 96 +     SetMetaContext(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/option_request.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |     ExtendedHeaders(Vec<u8>),
[INFO] [stdout]     |     --------------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 100 -     ExtendedHeaders(Vec<u8>),
[INFO] [stdout] 100 +     ExtendedHeaders(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:625:9
[INFO] [stdout]     |
[INFO] [stdout] 625 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 626 |         request: &OptionRequest,
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<T>), OptionReplyError> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<'_, T>), OptionReplyError> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:773:9
[INFO] [stdout]     |
[INFO] [stdout] 773 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<T>>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<'_, T>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/device.rs:377:9
[INFO] [stdout]     |
[INFO] [stdout] 377 |         size: u64,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 377 |         _size: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 377 -         size: u64,
[INFO] [stdout] 377 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 398 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 398 -         offset: u64,
[INFO] [stdout] 398 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:399:9
[INFO] [stdout]     |
[INFO] [stdout] 399 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 399 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 399 -         length: u32,
[INFO] [stdout] 399 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]    --> src/device.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |         flags: CommandFlags,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/device.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         offset: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 422 |         _offset: u64,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `NBD_REPLY_MAGIC`
[INFO] [stdout]     |
[INFO] [stdout] 422 -         offset: u64,
[INFO] [stdout] 422 +         magic::NBD_REPLY_MAGIC: u64,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/device.rs:423:9
[INFO] [stdout]     |
[INFO] [stdout] 423 |         length: u32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 423 |         _length: u32,
[INFO] [stdout]     |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BRANCHES`
[INFO] [stdout]     |
[INFO] [stdout] 423 -         length: u32,
[INFO] [stdout] 423 +         server::NbdServer::<T>::handle_commands::{closure#0}::{closure#0}::BRANCHES: u32,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error` and `cookie` are never read
[INFO] [stdout]   --> src/io/command_reply.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         struct SimpleReplyRaw<'a> {
[INFO] [stdout]    |                -------------- fields in this struct
[INFO] [stdout] 51 |             error: &'a u32,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 52 |             cookie: &'a u64,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SimpleReplyRaw` 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: field `0` is never read
[INFO] [stdout]   --> src/option_request.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |     SetMetaContext(Vec<u8>),
[INFO] [stdout]    |     -------------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 96 -     SetMetaContext(Vec<u8>),
[INFO] [stdout] 96 +     SetMetaContext(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/option_request.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |     ExtendedHeaders(Vec<u8>),
[INFO] [stdout]     |     --------------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 100 -     ExtendedHeaders(Vec<u8>),
[INFO] [stdout] 100 +     ExtendedHeaders(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:625:9
[INFO] [stdout]     |
[INFO] [stdout] 625 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 626 |         request: &OptionRequest,
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<T>), OptionReplyError> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<'_, T>), OptionReplyError> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/server.rs:773:9
[INFO] [stdout]     |
[INFO] [stdout] 773 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<T>>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 776 |     ) -> std::io::Result<SelectedDevice<'_, T>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.18s
[INFO] running `Command { std: "docker" "inspect" "aaec4a725dd9e196b9def0bec1692a933737a77d87437592c74239c846f88e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaec4a725dd9e196b9def0bec1692a933737a77d87437592c74239c846f88e8f", kill_on_drop: false }`
[INFO] [stdout] aaec4a725dd9e196b9def0bec1692a933737a77d87437592c74239c846f88e8f
