[INFO] cloning repository https://github.com/JustBobinAround/fi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JustBobinAround/fi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustBobinAround%2Ffi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustBobinAround%2Ffi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ecf2aab8e68f7f2a59534431804f221988ad20e
[INFO] checking JustBobinAround/fi against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustBobinAround%2Ffi" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JustBobinAround/fi
[INFO] finished tweaking git repo https://github.com/JustBobinAround/fi
[INFO] tweaked toml for git repo https://github.com/JustBobinAround/fi written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JustBobinAround/fi on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JustBobinAround/fi 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "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 filedescriptor v0.8.2
[INFO] [stderr]   Downloaded serial-windows v0.4.0
[INFO] [stderr]   Downloaded portable-pty v0.8.1
[INFO] [stderr]   Downloaded serial v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1516289c849a5c57c48fafbf62774931a8558e7784a92d04b1e1007705495cbd
[INFO] running `Command { std: "docker" "start" "-a" "1516289c849a5c57c48fafbf62774931a8558e7784a92d04b1e1007705495cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1516289c849a5c57c48fafbf62774931a8558e7784a92d04b1e1007705495cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1516289c849a5c57c48fafbf62774931a8558e7784a92d04b1e1007705495cbd", kill_on_drop: false }`
[INFO] [stdout] 1516289c849a5c57c48fafbf62774931a8558e7784a92d04b1e1007705495cbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5228ad592c24c08a5c6872d181d1d2f53d6d7c9d46a9e1bc06363350f53c2f16
[INFO] running `Command { std: "docker" "start" "-a" "5228ad592c24c08a5c6872d181d1d2f53d6d7c9d46a9e1bc06363350f53c2f16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking filedescriptor v0.8.2
[INFO] [stderr]     Checking portable-pty v0.8.1
[INFO] [stderr]     Checking fi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> src/pty/raw_mode.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sync::{Arc, Mutex} 
[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 imports: `Arc` and `Mutex`
[INFO] [stdout]   --> src/pty/raw_mode.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sync::{Arc, Mutex} 
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ascii/escapes.rs:556:37
[INFO] [stdout]     |
[INFO] [stdout] 556 | ...                   let mut rgb = (-1,-1 ,-1);
[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: unused variable: `rgb`
[INFO] [stdout]    --> src/ascii/escapes.rs:556:37
[INFO] [stdout]     |
[INFO] [stdout] 556 | ...                   let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rgb`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ascii/escapes.rs:556:37
[INFO] [stdout]     |
[INFO] [stdout] 556 | ...                   let mut rgb = (-1,-1 ,-1);
[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: unused variable: `rgb`
[INFO] [stdout]    --> src/ascii/escapes.rs:556:37
[INFO] [stdout]     |
[INFO] [stdout] 556 | ...                   let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rgb`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ascii/escapes.rs:835:29
[INFO] [stdout]     |
[INFO] [stdout] 835 |                         let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rgb`
[INFO] [stdout]    --> src/ascii/escapes.rs:835:29
[INFO] [stdout]     |
[INFO] [stdout] 835 |                         let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rgb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ascii/escapes.rs:835:29
[INFO] [stdout]     |
[INFO] [stdout] 835 |                         let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rgb`
[INFO] [stdout]    --> src/ascii/escapes.rs:835:29
[INFO] [stdout]     |
[INFO] [stdout] 835 |                         let mut rgb = (-1,-1 ,-1);
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rgb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x_offset` and `y_offset` are never read
[INFO] [stdout]   --> src/ascii/escapes.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct EscapeWriter<'a, T: Write> {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 79 |     x_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 80 |     y_offset: u32
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer_hist`, `size_x`, `size_y`, `offset_x`, and `offset_y` are never read
[INFO] [stdout]   --> src/pty/forker.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct PTerminal{
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     buffer_hist: Vec<Sequence>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     size_x: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     size_y: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     offset_x: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     offset_y: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]   --> src/pty/raw_mode.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl FileDesc {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn read(&self, buffer: &mut [u8], size: usize) -> io::Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x_offset` and `y_offset` are never read
[INFO] [stdout]   --> src/ascii/escapes.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct EscapeWriter<'a, T: Write> {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 79 |     x_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 80 |     y_offset: u32
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `buffer_hist`, `size_x`, `size_y`, `offset_x`, and `offset_y` are never read
[INFO] [stdout]   --> src/pty/forker.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct PTerminal{
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     buffer_hist: Vec<Sequence>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     size_x: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     size_y: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     offset_x: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     offset_y: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]   --> src/pty/raw_mode.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl FileDesc {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn read(&self, buffer: &mut [u8], size: usize) -> io::Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Read;
[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: `std::thread`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `portable_pty::CommandBuilder`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use portable_pty::CommandBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Read;
[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: `std::thread`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `portable_pty::CommandBuilder`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use portable_pty::CommandBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             _ => {}
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             Sequence::Text(text) => println!("Text: {:?}", text),
[INFO] [stdout]    |             -------------------- matches some of the same values
[INFO] [stdout] 21 |             Sequence::Escape(esc) => println!("Escape: {:?}", esc),
[INFO] [stdout]    |             --------------------- matches some of the same values
[INFO] [stdout] 22 |             _ => {}
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (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:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut buffer = Vec::new();
[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: unused variable: `p_term`
[INFO] [stdout]   --> src/main.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (handle,p_term) = PTerminal::new(80, 40, 0, 0)?;
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_term`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     handle.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[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] 29 |     let _ = handle.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             _ => {}
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             Sequence::Text(text) => println!("Text: {:?}", text),
[INFO] [stdout]    |             -------------------- matches some of the same values
[INFO] [stdout] 21 |             Sequence::Escape(esc) => println!("Escape: {:?}", esc),
[INFO] [stdout]    |             --------------------- matches some of the same values
[INFO] [stdout] 22 |             _ => {}
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (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:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut buffer = Vec::new();
[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: unused variable: `p_term`
[INFO] [stdout]   --> src/main.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let (handle,p_term) = PTerminal::new(80, 40, 0, 0)?;
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_term`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     handle.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[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] 29 |     let _ = handle.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.47s
[INFO] running `Command { std: "docker" "inspect" "5228ad592c24c08a5c6872d181d1d2f53d6d7c9d46a9e1bc06363350f53c2f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5228ad592c24c08a5c6872d181d1d2f53d6d7c9d46a9e1bc06363350f53c2f16", kill_on_drop: false }`
[INFO] [stdout] 5228ad592c24c08a5c6872d181d1d2f53d6d7c9d46a9e1bc06363350f53c2f16
