[INFO] cloning repository https://github.com/DolphinGui/seterm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DolphinGui/seterm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolphinGui%2Fseterm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolphinGui%2Fseterm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0db6fbc11a414df34a42559047e52cbbb38d4fe6
[INFO] checking DolphinGui/seterm against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolphinGui%2Fseterm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DolphinGui/seterm
[INFO] finished tweaking git repo https://github.com/DolphinGui/seterm
[INFO] tweaked toml for git repo https://github.com/DolphinGui/seterm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DolphinGui/seterm on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DolphinGui/seterm 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" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking DolphinGui/seterm against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolphinGui%2Fseterm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DolphinGui/seterm
[INFO] finished tweaking git repo https://github.com/DolphinGui/seterm
[INFO] tweaked toml for git repo https://github.com/DolphinGui/seterm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DolphinGui/seterm on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DolphinGui/seterm 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" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "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 proc-macro2 v1.0.105
[INFO] [stderr]   Downloaded itoa v1.0.17
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded instability v0.3.11
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[INFO] [stderr]   Downloaded lru v0.12.5
[INFO] [stderr]   Downloaded kqueue-sys v1.0.4
[INFO] [stderr]   Downloaded notify-types v2.0.0
[INFO] [stderr]   Downloaded inotify-sys v0.1.5
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[INFO] [stderr]   Downloaded notify v8.2.0
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[INFO] [stderr]   Downloaded color-eyre v0.6.5
[INFO] [stderr]   Downloaded libc v0.2.179
[INFO] [stderr]   Downloaded tokio v1.49.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69
[INFO] running `Command { std: "docker" "start" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69", 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" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69", 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" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]     Checking nu-ansi-term v0.50.3
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling instability v0.3.11
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking itoa v1.0.17
[INFO] [stderr]     Checking quote v1.0.40
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[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking bytes v1.11.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]     Checking ryu v1.0.22
[INFO] [stderr]     Checking clap_builder v4.5.54
[INFO] [stderr]     Checking regex-automata v0.4.13
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[INFO] [stderr]     Checking notify-types v2.0.0
[INFO] [stderr]     Checking unicode-width v0.2.0
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[INFO] [stderr]     Checking socket2 v0.6.1
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[INFO] [stderr]     Checking signal-hook-registry v1.4.8
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[INFO] [stderr]     Checking parking_lot v0.12.5
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[INFO] [stderr]     Checking inotify v0.11.0
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[INFO] [stderr]     Checking unicode-truncate v1.1.0
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking notify v8.2.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking unescaper v0.1.8
[INFO] [stderr]     Checking serialport v4.8.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]     Checking mio-serial v5.0.6
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]     Checking clap v4.5.54
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking ratatui v0.29.0
[INFO] [stderr]     Checking tracing-error v0.2.1
[INFO] [stderr]     Checking color-eyre v0.6.5
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-serial v5.4.5
[INFO] [stderr]     Checking seterm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `eyre::eyre`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use eyre::eyre;
[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: `Baud`
[INFO] [stdout]  --> src/app.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     device_finder::{Baud, DeviceConfig, DeviceConfigurer, DeviceFinder},
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notify::event::DataChange`
[INFO] [stdout]  --> src/cli.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use notify::event::DataChange;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StatefulWidget`, `Widget`, and `buffer::Buffer`
[INFO] [stdout]   --> src/device_finder.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     buffer::Buffer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |         Block, Borders, Clear, List, ListState, Paragraph, Row, StatefulWidget, Table, TableState,
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 13 |         Widget,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Report`
[INFO] [stdout]  --> src/event.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Report, Result,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eyre`
[INFO] [stdout]  --> src/event.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use eyre::{Context, eyre};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `buffer::Buffer`
[INFO] [stdout]   --> src/event.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ratatui::{Frame, buffer::Buffer, crossterm::event::Event as CrosstermEvent, layout::Rect};
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]   --> src/event.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     sync::{mpsc, oneshot},
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToAppEvent`
[INFO] [stdout]  --> src/fileviewer.rs:3:76
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::event::{Drawable, EventListener, GuiEvent, Messenger, Severity, ToAppEvent};
[INFO] [stdout]   |                                                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StatefulWidget` and `Widget`
[INFO] [stdout]   --> src/fileviewer.rs:10:50
[INFO] [stdout]    |
[INFO] [stdout] 10 |     widgets::{Block, List, ListState, Paragraph, StatefulWidget, Widget},
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]   --> src/fileviewer.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eyre::eyre`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use eyre::eyre;
[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: `Baud`
[INFO] [stdout]  --> src/app.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     device_finder::{Baud, DeviceConfig, DeviceConfigurer, DeviceFinder},
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notify::event::DataChange`
[INFO] [stdout]  --> src/cli.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use notify::event::DataChange;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StatefulWidget`, `Widget`, and `buffer::Buffer`
[INFO] [stdout]   --> src/device_finder.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     buffer::Buffer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |         Block, Borders, Clear, List, ListState, Paragraph, Row, StatefulWidget, Table, TableState,
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^
[INFO] [stdout] 13 |         Widget,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Report`
[INFO] [stdout]  --> src/event.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Report, Result,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eyre`
[INFO] [stdout]  --> src/event.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use eyre::{Context, eyre};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `buffer::Buffer`
[INFO] [stdout]   --> src/event.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ratatui::{Frame, buffer::Buffer, crossterm::event::Event as CrosstermEvent, layout::Rect};
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]   --> src/event.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     sync::{mpsc, oneshot},
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToAppEvent`
[INFO] [stdout]  --> src/fileviewer.rs:3:76
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::event::{Drawable, EventListener, GuiEvent, Messenger, Severity, ToAppEvent};
[INFO] [stdout]   |                                                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StatefulWidget` and `Widget`
[INFO] [stdout]   --> src/fileviewer.rs:10:50
[INFO] [stdout]    |
[INFO] [stdout] 10 |     widgets::{Block, List, ListState, Paragraph, StatefulWidget, Widget},
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]   --> src/fileviewer.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/event.rs:304:13
[INFO] [stdout]     |
[INFO] [stdout] 304 |             u.exec();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/fileviewer.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     tx.send(take(&mut self.contents));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     let _ = tx.send(take(&mut self.contents));
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]    --> src/event.rs:304:13
[INFO] [stdout]     |
[INFO] [stdout] 304 |             u.exec();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/fileviewer.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     tx.send(take(&mut self.contents));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     let _ = tx.send(take(&mut self.contents));
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69", kill_on_drop: false }`
[INFO] [stdout] 688aaa10a0fb2579f2c866738d8244a276f1d4ecc316c8dcb716e1303b37ee69
