[INFO] fetching crate tokio-nbd 0.3.0...
[INFO] testing tokio-nbd-0.3.0 against 1.99.0-beta.8 for beta-1.100-2
[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 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bon-macros v3.6.5
[INFO] [stderr]   Downloaded int-enum v1.2.0
[INFO] [stderr]   Downloaded bon v3.6.5
[INFO] [stderr]   Downloaded darling v0.21.1
[INFO] [stderr]   Downloaded darling_macro v0.21.1
[INFO] [stderr]   Downloaded darling_core v0.21.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf
[INFO] running `Command { std: "docker" "start" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", 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" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.1.0
[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 thiserror v2.0.12
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling darling_macro v0.21.1
[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]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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 20.47s
[INFO] running `Command { std: "docker" "inspect" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", 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]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[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]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[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 8.23s
[INFO] running `Command { std: "docker" "inspect" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]    --> src/device.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         flags: CommandFlags,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/device.rs:377:9
[INFO] [stderr]     |
[INFO] [stderr] 377 |         size: u64,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]    --> src/device.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         flags: CommandFlags,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/device.rs:398:9
[INFO] [stderr]     |
[INFO] [stderr] 398 |         offset: u64,
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]    --> src/device.rs:399:9
[INFO] [stderr]     |
[INFO] [stderr] 399 |         length: u32,
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]    --> src/device.rs:421:9
[INFO] [stderr]     |
[INFO] [stderr] 421 |         flags: CommandFlags,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/device.rs:422:9
[INFO] [stderr]     |
[INFO] [stderr] 422 |         offset: u64,
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]    --> src/device.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         length: u32,
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `error` and `cookie` are never read
[INFO] [stderr]   --> src/io/command_reply.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         struct SimpleReplyRaw<'a> {
[INFO] [stderr]    |                -------------- fields in this struct
[INFO] [stderr] 51 |             error: &'a u32,
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr] 52 |             cookie: &'a u64,
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `SimpleReplyRaw` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `MetaContext` is never constructed
[INFO] [stderr]    --> src/option_reply.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 106 | pub(crate) enum OptionReply {
[INFO] [stderr]     |                 ----------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 117 |     MetaContext(u32, String),
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `OptionReply` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/option_request.rs:96:20
[INFO] [stderr]    |
[INFO] [stderr] 96 |     SetMetaContext(Vec<u8>),
[INFO] [stderr]    |     -------------- ^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 96 -     SetMetaContext(Vec<u8>),
[INFO] [stderr] 96 +     SetMetaContext(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/option_request.rs:100:21
[INFO] [stderr]     |
[INFO] [stderr] 100 |     ExtendedHeaders(Vec<u8>),
[INFO] [stderr]     |     --------------- ^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `OptionRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 100 -     ExtendedHeaders(Vec<u8>),
[INFO] [stderr] 100 +     ExtendedHeaders(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/server.rs:625:9
[INFO] [stderr]     |
[INFO] [stderr] 625 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] 626 |         request: &OptionRequest,
[INFO] [stderr] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<T>), OptionReplyError> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 627 |     ) -> Result<(Vec<OptionReply>, OptionReplyFinalize<'_, T>), OptionReplyError> {
[INFO] [stderr]     |                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/server.rs:773:9
[INFO] [stderr]     |
[INFO] [stderr] 773 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 776 |     ) -> std::io::Result<SelectedDevice<T>>
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 776 |     ) -> std::io::Result<SelectedDevice<'_, T>>
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-nbd` (lib) generated 14 warnings (run `cargo fix --lib -p tokio-nbd` to apply 10 suggestions)
[INFO] [stderr] warning: `tokio-nbd` (lib test) generated 13 warnings (13 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_nbd-3ab781d77066b2d6)
[INFO] [stdout] 
[INFO] [stdout] running 46 tests
[INFO] [stdout] test command_request::tests::test_try_from_raw_disconnect ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_valid_write ... ok
[INFO] [stdout] test device::tests::driver_memory_command_flags ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_other_commands ... ok
[INFO] [stdout] test device::tests::driver_memory_read ... ok
[INFO] [stdout] test device::tests::driver_memory_write_out_of_bounds ... ok
[INFO] [stdout] test device::tests::driver_memory_resize ... ok
[INFO] [stdout] test device::tests::driver_memory_read_out_of_bounds ... ok
[INFO] [stdout] test device::tests::driver_memory_unsupported_operations ... ok
[INFO] [stdout] test device::tests::driver_memory_zero_length_operations ... ok
[INFO] [stdout] test flags::tests::test_command_flags ... ok
[INFO] [stdout] test flags::tests::test_empty_server_features_conversion ... ok
[INFO] [stdout] test flags::tests::test_handshake_flags ... ok
[INFO] [stdout] test flags::tests::test_server_features ... ok
[INFO] [stdout] test flags::tests::test_server_features_to_transmission_flags ... ok
[INFO] [stdout] test flags::tests::test_transmission_flags ... ok
[INFO] [stdout] test info::tests::test_information_request_conversion ... ok
[INFO] [stdout] test option_reply::tests::test_info_payload_block_size ... ok
[INFO] [stdout] test device::tests::driver_memory_write_read ... ok
[INFO] [stdout] test command_request::tests::test_command_type_conversion ... ok
[INFO] [stdout] test option_reply::tests::test_info_payload_via_option_reply ... ok
[INFO] [stdout] test device::tests::driver_memory_list_devices_and_info ... ok
[INFO] [stdout] test device::tests::driver_memory_error_handling_and_recovery ... ok
[INFO] [stdout] test option_reply::tests::test_info_payload_description ... ok
[INFO] [stdout] test option_reply::tests::test_option_reply_get_data_meta_context ... ok
[INFO] [stdout] test option_reply::tests::test_info_payload_export ... ok
[INFO] [stdout] test option_reply::tests::test_info_payload_name ... ok
[INFO] [stdout] test option_reply::tests::test_option_reply_get_data_server ... ok
[INFO] [stdout] test option_reply::tests::test_option_reply_get_reply_type ... ok
[INFO] [stdout] test option_request::tests::test_option_request_type_conversion ... ok
[INFO] [stdout] test option_request::tests::test_parse_info_payload_empty ... ok
[INFO] [stdout] test option_request::tests::test_try_from_raw_invalid_magic ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_valid_flush ... ok
[INFO] [stdout] test device::tests::driver_memory_partial_write_read ... ok
[INFO] [stdout] test device::tests::driver_memory_get_name ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_unsupported_command ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_valid_read ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_invalid_magic ... ok
[INFO] [stdout] test option_request::tests::test_try_from_raw_unsupported ... ok
[INFO] [stdout] test command_request::tests::test_try_from_raw_cache_and_block_status ... ok
[INFO] [stdout] test option_reply::tests::test_option_reply_get_data_ack ... ok
[INFO] [stdout] test option_reply::tests::test_option_reply_type_conversion ... ok
[INFO] [stdout] test option_request::tests::test_try_from_raw_export_name ... ok
[INFO] [stdout] test option_request::tests::test_parse_info_payload_with_name ... ok
[INFO] [stdout] test device::tests::driver_memory_disconnect ... ok
[INFO] [stderr]    Doc-tests tokio_nbd
[INFO] [stdout] test command_request::tests::test_try_from_raw_invalid_write_data - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 27) - compile ... ok
[INFO] [stdout] test src/device.rs - device::NbdDriver (line 63) ... ok
[INFO] [stdout] test src/errors.rs - errors (line 13) ... ok
[INFO] [stdout] test src/flags.rs - flags (line 12) ... ok
[INFO] [stdout] test src/lib.rs - init_default_tracing (line 52) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/server.rs - server::SelectedDevice (line 131) - compile fail ... ok
[INFO] [stdout] test src/server.rs - server (line 24) - compile fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.76s; merged doctests compilation took 0.65s
[INFO] running `Command { std: "docker" "inspect" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf", kill_on_drop: false }`
[INFO] [stdout] 9a8facfe70e8ec0e5b19b5f8c558451fd83642b96c3bf7f46a740be66f2454cf
