[INFO] cloning repository https://github.com/artpeixoto/nu_plugin_pipe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/artpeixoto/nu_plugin_pipe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartpeixoto%2Fnu_plugin_pipe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartpeixoto%2Fnu_plugin_pipe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d2686309169572739167509cda7392f0897878d
[INFO] checking artpeixoto/nu_plugin_pipe against e4d5758286bf2cf6f415802f2cf861747a7c6c8c for pr-152972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartpeixoto%2Fnu_plugin_pipe" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/artpeixoto/nu_plugin_pipe
[INFO] finished tweaking git repo https://github.com/artpeixoto/nu_plugin_pipe
[INFO] tweaked toml for git repo https://github.com/artpeixoto/nu_plugin_pipe written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/artpeixoto/nu_plugin_pipe on toolchain e4d5758286bf2cf6f415802f2cf861747a7c6c8c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/artpeixoto/nu_plugin_pipe 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" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8
[INFO] running `Command { std: "docker" "start" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8", 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" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Error`, `Peekable`, `Sender`, `TryRecvError`, `path::Path`, `self`, `str::FromStr`, and `thread::spawn`
[INFO] [stdout]   --> src/main.rs:4:18
[INFO] [stdout]    |
[INFO] [stdout]  4 |     fmt::{Debug, Error, Formatter},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]  5 |     iter::{self, Peekable, from_fn},
[INFO] [stdout]    |            ^^^^  ^^^^^^^^
[INFO] [stdout]  6 |     path::Path,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  7 |     str::FromStr,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |         mpsc::{self, Receiver, RecvError, Sender, SyncSender, TryRecvError},
[INFO] [stdout]    |                                           ^^^^^^              ^^^^^^^^^^^^
[INFO] [stdout] 11 |     },
[INFO] [stdout] 12 |     thread::spawn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::bail`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use anyhow::bail;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EngineInterface` and `MsgPackSerializer`
[INFO] [stdout]   --> src/main.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use nu_plugin::{EngineInterface, JsonSerializer, MsgPackSerializer, Plugin, PluginCommand};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CustomValue`, `SignalAction`, `Spanned`, `Type`, `ast::Operator`, and `engine`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     CustomValue, FromValue, IntoValue, LabeledError, ShellError, SignalAction, Span, Spanned, Type,
[INFO] [stdout]    |     ^^^^^^^^^^^                                                  ^^^^^^^^^^^^        ^^^^^^^  ^^^^
[INFO] [stdout] 19 |     Value, ast::Operator, engine,
[INFO] [stdout]    |            ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Conv`
[INFO] [stdout]   --> src/main.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tap::{Conv, Pipe as _};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/pipe_arg.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nu_protocol::{FromValue, LabeledError, Span, Type, Value};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PipeReaderValue`
[INFO] [stdout]  --> src/pipe_arg.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{PipeId, PipeReaderValue, PipeValue};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nu_protocol::Type`
[INFO] [stdout]  --> src/cmds/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nu_protocol::Type;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::PipeReaderValue`
[INFO] [stdout]  --> src/cmds/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::PipeReaderValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromValue`, `SyntaxShape`, `Type`, and `Value`
[INFO] [stdout]  --> src/cmds/drop.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use nu_protocol::{FromValue, LabeledError, PipelineData, Signature, SyntaxShape, Type, Value};
[INFO] [stdout]   |                   ^^^^^^^^^                                         ^^^^^^^^^^^  ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/cmds/drop.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PipeId` and `PipeValue`
[INFO] [stdout]  --> src/cmds/drop.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     PipeId, PipePlugin,  PipeValue,
[INFO] [stdout]   |     ^^^^^^               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Call`, `EngineState`, `PipelineMetadata`, `Record`, `ShellError`, `Stack`, `SyntaxShape`, and `self`
[INFO] [stdout]  --> src/cmds/list.rs:3:62
[INFO] [stdout]   |
[INFO] [stdout] 3 |     IntoPipelineData, IntoValue, LabeledError, PipelineData, PipelineMetadata, Record, ShellError,
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     Signature, Span, SyntaxShape, Type, Value,
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |              ^^^^  ^^^^           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Call`, `EngineState`, `PipelineMetadata`, `Record`, `ShellError`, `Stack`, `Value`, and `self`
[INFO] [stdout]  --> src/cmds/new.rs:3:73
[INFO] [stdout]   |
[INFO] [stdout] 3 |     FromValue, IntoPipelineData, IntoValue, LabeledError, PipelineData, PipelineMetadata, Record,
[INFO] [stdout]   |                                                                         ^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 4 |     ShellError, Signature, Span, SyntaxShape, Type, Value,
[INFO] [stdout]   |     ^^^^^^^^^^                                      ^^^^^
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |              ^^^^  ^^^^           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoInterruptiblePipelineData`, `PipelineMetadata`, `Signals`, `SyntaxShape`, and `engine::Closure`
[INFO] [stdout]  --> src/cmds/recv.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     IntoInterruptiblePipelineData, IntoSpanned, LabeledError, ListStream, PipelineData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     PipelineMetadata, Signals, Signature, Span, SyntaxShape, Type, Value, engine::Closure,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^  ^^^^^^^                   ^^^^^^^^^^^               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cmds/write.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoInterruptiblePipelineData`, `ListStream`, `Signals`, and `Span`
[INFO] [stdout]  --> src/cmds/write.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     IntoInterruptiblePipelineData, LabeledError, ListStream, PipelineData, Signals, Signature,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                ^^^^^^^^^^                ^^^^^^^
[INFO] [stdout] 5 |     Span, Type, Value,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/cmds/write.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Peekable`, `Sender`, `TryRecvError`, `path::Path`, `self`, `str::FromStr`, and `thread::spawn`
[INFO] [stdout]   --> src/main.rs:4:18
[INFO] [stdout]    |
[INFO] [stdout]  4 |     fmt::{Debug, Error, Formatter},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]  5 |     iter::{self, Peekable, from_fn},
[INFO] [stdout]    |            ^^^^  ^^^^^^^^
[INFO] [stdout]  6 |     path::Path,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  7 |     str::FromStr,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |         mpsc::{self, Receiver, RecvError, Sender, SyncSender, TryRecvError},
[INFO] [stdout]    |                                           ^^^^^^              ^^^^^^^^^^^^
[INFO] [stdout] 11 |     },
[INFO] [stdout] 12 |     thread::spawn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::bail`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use anyhow::bail;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EngineInterface` and `MsgPackSerializer`
[INFO] [stdout]   --> src/main.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use nu_plugin::{EngineInterface, JsonSerializer, MsgPackSerializer, Plugin, PluginCommand};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CustomValue`, `SignalAction`, `Spanned`, `Type`, `ast::Operator`, and `engine`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     CustomValue, FromValue, IntoValue, LabeledError, ShellError, SignalAction, Span, Spanned, Type,
[INFO] [stdout]    |     ^^^^^^^^^^^                                                  ^^^^^^^^^^^^        ^^^^^^^  ^^^^
[INFO] [stdout] 19 |     Value, ast::Operator, engine,
[INFO] [stdout]    |            ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Conv`
[INFO] [stdout]   --> src/main.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | use tap::{Conv, Pipe as _};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/pipe_arg.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nu_protocol::{FromValue, LabeledError, Span, Type, Value};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PipeReaderValue`
[INFO] [stdout]  --> src/pipe_arg.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{PipeId, PipeReaderValue, PipeValue};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nu_protocol::Type`
[INFO] [stdout]  --> src/cmds/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nu_protocol::Type;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::PipeReaderValue`
[INFO] [stdout]  --> src/cmds/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::PipeReaderValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromValue`, `SyntaxShape`, `Type`, and `Value`
[INFO] [stdout]  --> src/cmds/drop.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use nu_protocol::{FromValue, LabeledError, PipelineData, Signature, SyntaxShape, Type, Value};
[INFO] [stdout]   |                   ^^^^^^^^^                                         ^^^^^^^^^^^  ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/cmds/drop.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PipeId` and `PipeValue`
[INFO] [stdout]  --> src/cmds/drop.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     PipeId, PipePlugin,  PipeValue,
[INFO] [stdout]   |     ^^^^^^               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Call`, `EngineState`, `PipelineMetadata`, `Record`, `ShellError`, `Stack`, `SyntaxShape`, and `self`
[INFO] [stdout]  --> src/cmds/list.rs:3:62
[INFO] [stdout]   |
[INFO] [stdout] 3 |     IntoPipelineData, IntoValue, LabeledError, PipelineData, PipelineMetadata, Record, ShellError,
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     Signature, Span, SyntaxShape, Type, Value,
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |              ^^^^  ^^^^           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Call`, `EngineState`, `PipelineMetadata`, `Record`, `ShellError`, `Stack`, `Value`, and `self`
[INFO] [stdout]  --> src/cmds/new.rs:3:73
[INFO] [stdout]   |
[INFO] [stdout] 3 |     FromValue, IntoPipelineData, IntoValue, LabeledError, PipelineData, PipelineMetadata, Record,
[INFO] [stdout]   |                                                                         ^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 4 |     ShellError, Signature, Span, SyntaxShape, Type, Value,
[INFO] [stdout]   |     ^^^^^^^^^^                                      ^^^^^
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |              ^^^^  ^^^^           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoInterruptiblePipelineData`, `PipelineMetadata`, `Signals`, `SyntaxShape`, and `engine::Closure`
[INFO] [stdout]  --> src/cmds/recv.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     IntoInterruptiblePipelineData, IntoSpanned, LabeledError, ListStream, PipelineData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     PipelineMetadata, Signals, Signature, Span, SyntaxShape, Type, Value, engine::Closure,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^  ^^^^^^^                   ^^^^^^^^^^^               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cmds/write.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoInterruptiblePipelineData`, `ListStream`, `Signals`, and `Span`
[INFO] [stdout]  --> src/cmds/write.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     IntoInterruptiblePipelineData, LabeledError, ListStream, PipelineData, Signals, Signature,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                ^^^^^^^^^^                ^^^^^^^
[INFO] [stdout] 5 |     Span, Type, Value,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/cmds/write.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         mut condition: Option<PipeReaderReadCondition>,
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut lock = self.0.blocking_lock_owned();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         mut condition: Option<PipeReaderReadCondition>,
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut lock = self.0.blocking_lock_owned();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe_arg.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub const fn only_readers(mut self) -> Self {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe_arg.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub const fn only_readers(mut self) -> Self {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe_arg.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub const fn only_writers(mut self) -> Self {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe_arg.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub const fn only_writers(mut self) -> Self {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/cmds/list.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/cmds/list.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/cmds/new.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/cmds/new.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     engine::{self, Call, Command, EngineState, Stack},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |             .map_err(|e| LabeledError::new("Error when trying to lock state for reading."))?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |             .map_err(|e| LabeledError::new("Error when trying to lock state for reading."))?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/drop.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/drop.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/drop.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         input : PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/drop.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         input : PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/list.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/list.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `call`
[INFO] [stdout]   --> src/cmds/list.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         call: &EvaluatedCall,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `call`
[INFO] [stdout]   --> src/cmds/list.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         call: &EvaluatedCall,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/list.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         input: PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/list.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         input: PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/new.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/new.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/new.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         input : PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/new.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         input : PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cmds/recv.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut pipe_receiver = plugin
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/recv.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cmds/recv.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut pipe_receiver = plugin
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/recv.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         input: PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/recv.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cmds/recv.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         input: PipelineData,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cmds/recv.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut pipe_receiver = plugin
[INFO] [stdout]     |             ----^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cmds/recv.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut pipe_receiver = plugin
[INFO] [stdout]     |             ----^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/cmds/recv.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         input: PipelineData,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/cmds/recv.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         input: PipelineData,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     val, internal_span, ..
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:136:26
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     val, internal_span, ..
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     val, internal_span, ..
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 Value::Nothing { internal_span, .. } => None,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/cmds/recv.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 a => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:136:26
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     val, internal_span, ..
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]    --> src/cmds/recv.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 Value::Nothing { internal_span, .. } => None,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/cmds/recv.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 a => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/write.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/cmds/write.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         engine: &EngineInterface,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mk_pipe_closed_err`
[INFO] [stdout]   --> src/cmds/write.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mk_pipe_closed_err = || LabeledError::new("Pipe is closed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mk_pipe_closed_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mk_pipe_closed_err`
[INFO] [stdout]   --> src/cmds/write.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mk_pipe_closed_err = || LabeledError::new("Pipe is closed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mk_pipe_closed_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signals`
[INFO] [stdout]   --> src/cmds/write.rs:62:53
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                     ^^^^^^^ help: try ignoring the field: `signals: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signals`
[INFO] [stdout]   --> src/cmds/write.rs:62:53
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                     ^^^^^^^ help: try ignoring the field: `signals: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]   --> src/cmds/write.rs:62:62
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_span`
[INFO] [stdout]   --> src/cmds/write.rs:62:62
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^ help: try ignoring the field: `internal_span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pipeline_metadata`
[INFO] [stdout]   --> src/cmds/write.rs:62:83
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                                                   ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pipeline_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pipeline_metadata`
[INFO] [stdout]   --> src/cmds/write.rs:62:83
[INFO] [stdout]    |
[INFO] [stdout] 62 |             PipelineData::Value(Value::List { vals, signals, internal_span, .. }, pipeline_metadata) => {
[INFO] [stdout]    |                                                                                   ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pipeline_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pipeline_metadata`
[INFO] [stdout]   --> src/cmds/write.rs:67:51
[INFO] [stdout]    |
[INFO] [stdout] 67 |             PipelineData::ListStream(list_stream, pipeline_metadata) => {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pipeline_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pipeline_metadata`
[INFO] [stdout]   --> src/cmds/write.rs:67:51
[INFO] [stdout]    |
[INFO] [stdout] 67 |             PipelineData::ListStream(list_stream, pipeline_metadata) => {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pipeline_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     lock_cell.insert(lock);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     lock_cell.insert(lock);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:269:37
[INFO] [stdout]     |
[INFO] [stdout] 269 | ...                   lock_cell.insert(lock);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 269 |                                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     lock_cell.insert(lock);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     lock_cell.insert(lock);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::option::Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/main.rs:269:37
[INFO] [stdout]     |
[INFO] [stdout] 269 | ...                   lock_cell.insert(lock);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 269 |                                     let _ = lock_cell.insert(lock);
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.41s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: proc-macro-error2 v2.0.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8", kill_on_drop: false }`
[INFO] [stdout] 622e20cd4e415d0ef6b09b7d6384164f7a33673a846645966ec115c2e0cb8bd8
