Dec 17 21:16:47.829 INFO checking kolgotko/forkpty against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:16:47.829 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/kolgotko/forkpty:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:16:48.382 INFO [stdout] e7378df1b5169e977f36db14ce68c45f826bf1c399fcdcc3d808cb186d9616f9
Dec 17 21:16:48.384 INFO running `"docker" "start" "-a" "e7378df1b5169e977f36db14ce68c45f826bf1c399fcdcc3d808cb186d9616f9"`
Dec 17 21:16:50.408 INFO [stderr]     Checking forkpty v0.1.0 (/opt/crater/workdir)
Dec 17 21:16:50.776 INFO [stderr] warning: unused import: `open`
Dec 17 21:16:50.776 INFO [stderr]   --> src/lib.rs:14:25
Dec 17 21:16:50.776 INFO [stderr]    |
Dec 17 21:16:50.776 INFO [stderr] 14 | use nix::fcntl::{OFlag, open, fcntl, FcntlArg};
Dec 17 21:16:50.776 INFO [stderr]    |                         ^^^^
Dec 17 21:16:50.776 INFO [stderr]    |
Dec 17 21:16:50.776 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 21:16:50.776 INFO [stderr] 
Dec 17 21:16:50.897 INFO [stderr] warning: unreachable pattern
Dec 17 21:16:50.897 INFO [stderr]    --> src/lib.rs:148:13
Dec 17 21:16:50.897 INFO [stderr]     |
Dec 17 21:16:50.897 INFO [stderr] 148 |             Ok(-1) => {
Dec 17 21:16:50.897 INFO [stderr]     |             ^^^^^^
Dec 17 21:16:50.897 INFO [stderr]     |
Dec 17 21:16:50.897 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 17 21:16:50.897 INFO [stderr] 
Dec 17 21:16:50.897 INFO [stderr] warning: unreachable pattern
Dec 17 21:16:50.897 INFO [stderr]    --> src/lib.rs:211:13
Dec 17 21:16:50.897 INFO [stderr]     |
Dec 17 21:16:50.897 INFO [stderr] 211 |             Ok(-1) => {
Dec 17 21:16:50.897 INFO [stderr]     |             ^^^^^^
Dec 17 21:16:50.897 INFO [stderr] 
Dec 17 21:16:50.912 INFO [stderr] warning: unused import: `open`
Dec 17 21:16:50.912 INFO [stderr]   --> src/lib.rs:14:25
Dec 17 21:16:50.912 INFO [stderr]    |
Dec 17 21:16:50.912 INFO [stderr] 14 | use nix::fcntl::{OFlag, open, fcntl, FcntlArg};
Dec 17 21:16:50.912 INFO [stderr]    |                         ^^^^
Dec 17 21:16:50.912 INFO [stderr]    |
Dec 17 21:16:50.912 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 21:16:50.912 INFO [stderr] 
Dec 17 21:16:50.975 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:50.975 INFO [stderr]    --> src/lib.rs:362:13
Dec 17 21:16:50.976 INFO [stderr]     |
Dec 17 21:16:50.976 INFO [stderr] 362 |             close(slave_fd);
Dec 17 21:16:50.976 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Dec 17 21:16:50.976 INFO [stderr]     |
Dec 17 21:16:50.976 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 21:16:50.977 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:50.977 INFO [stderr] 
Dec 17 21:16:50.977 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:50.977 INFO [stderr]    --> src/lib.rs:376:13
Dec 17 21:16:50.977 INFO [stderr]     |
Dec 17 21:16:50.977 INFO [stderr] 376 |             close(stdin.as_raw_fd());
Dec 17 21:16:50.977 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:50.977 INFO [stderr]     |
Dec 17 21:16:50.977 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:50.977 INFO [stderr] 
Dec 17 21:16:50.978 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:50.978 INFO [stderr]    --> src/lib.rs:377:13
Dec 17 21:16:50.978 INFO [stderr]     |
Dec 17 21:16:50.978 INFO [stderr] 377 |             close(stdout.as_raw_fd());
Dec 17 21:16:50.978 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:50.978 INFO [stderr]     |
Dec 17 21:16:50.978 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:50.978 INFO [stderr] 
Dec 17 21:16:50.978 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:50.978 INFO [stderr]    --> src/lib.rs:378:13
Dec 17 21:16:50.978 INFO [stderr]     |
Dec 17 21:16:50.978 INFO [stderr] 378 |             close(stderr.as_raw_fd());
Dec 17 21:16:50.978 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:50.983 INFO [stderr]     |
Dec 17 21:16:50.983 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:50.983 INFO [stderr] 
Dec 17 21:16:51.149 INFO [stderr] warning: unreachable pattern
Dec 17 21:16:51.149 INFO [stderr]    --> src/lib.rs:148:13
Dec 17 21:16:51.149 INFO [stderr]     |
Dec 17 21:16:51.149 INFO [stderr] 148 |             Ok(-1) => {
Dec 17 21:16:51.149 INFO [stderr]     |             ^^^^^^
Dec 17 21:16:51.158 INFO [stderr]     |
Dec 17 21:16:51.159 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 17 21:16:51.159 INFO [stderr] 
Dec 17 21:16:51.159 INFO [stderr] warning: unreachable pattern
Dec 17 21:16:51.159 INFO [stderr]    --> src/lib.rs:211:13
Dec 17 21:16:51.159 INFO [stderr]     |
Dec 17 21:16:51.159 INFO [stderr] 211 |             Ok(-1) => {
Dec 17 21:16:51.159 INFO [stderr]     |             ^^^^^^
Dec 17 21:16:51.159 INFO [stderr] 
Dec 17 21:16:51.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.282 INFO [stderr]    --> src/lib.rs:362:13
Dec 17 21:16:51.282 INFO [stderr]     |
Dec 17 21:16:51.282 INFO [stderr] 362 |             close(slave_fd);
Dec 17 21:16:51.282 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Dec 17 21:16:51.282 INFO [stderr]     |
Dec 17 21:16:51.282 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 21:16:51.282 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.282 INFO [stderr] 
Dec 17 21:16:51.282 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.282 INFO [stderr]    --> src/lib.rs:376:13
Dec 17 21:16:51.282 INFO [stderr]     |
Dec 17 21:16:51.282 INFO [stderr] 376 |             close(stdin.as_raw_fd());
Dec 17 21:16:51.282 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.283 INFO [stderr]     |
Dec 17 21:16:51.283 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.283 INFO [stderr] 
Dec 17 21:16:51.283 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.283 INFO [stderr]    --> src/lib.rs:377:13
Dec 17 21:16:51.283 INFO [stderr]     |
Dec 17 21:16:51.283 INFO [stderr] 377 |             close(stdout.as_raw_fd());
Dec 17 21:16:51.283 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.283 INFO [stderr]     |
Dec 17 21:16:51.283 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.283 INFO [stderr] 
Dec 17 21:16:51.283 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.283 INFO [stderr]    --> src/lib.rs:378:13
Dec 17 21:16:51.283 INFO [stderr]     |
Dec 17 21:16:51.283 INFO [stderr] 378 |             close(stderr.as_raw_fd());
Dec 17 21:16:51.283 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.283 INFO [stderr]     |
Dec 17 21:16:51.285 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.285 INFO [stderr] 
Dec 17 21:16:51.403 INFO [stderr] warning: unused imports: `OFlag`, `open`
Dec 17 21:16:51.404 INFO [stderr]  --> src/main.rs:6:18
Dec 17 21:16:51.404 INFO [stderr]   |
Dec 17 21:16:51.404 INFO [stderr] 6 | use nix::fcntl::{OFlag, open};
Dec 17 21:16:51.404 INFO [stderr]   |                  ^^^^^  ^^^^
Dec 17 21:16:51.404 INFO [stderr]   |
Dec 17 21:16:51.404 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:16:51.404 INFO [stderr] 
Dec 17 21:16:51.404 INFO [stderr] warning: unused import: `std::process::Command`
Dec 17 21:16:51.408 INFO [stderr]  --> src/main.rs:7:5
Dec 17 21:16:51.408 INFO [stderr]   |
Dec 17 21:16:51.408 INFO [stderr] 7 | use std::process::Command;
Dec 17 21:16:51.408 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `nix::sys::wait::*`
Dec 17 21:16:51.408 INFO [stderr]  --> src/main.rs:9:5
Dec 17 21:16:51.408 INFO [stderr]   |
Dec 17 21:16:51.408 INFO [stderr] 9 | use nix::sys::wait::*;
Dec 17 21:16:51.408 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `std::os::unix::io::AsRawFd`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:12:5
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 12 | use std::os::unix::io::AsRawFd;
Dec 17 21:16:51.408 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `std::os::unix::io::IntoRawFd`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:13:5
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 13 | use std::os::unix::io::IntoRawFd;
Dec 17 21:16:51.408 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `std::fs::OpenOptions`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:14:5
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 14 | use std::fs::OpenOptions;
Dec 17 21:16:51.408 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `UnixStream`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:16:26
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 16 | use std::os::unix::net::{UnixStream, UnixListener};
Dec 17 21:16:51.408 INFO [stderr]    |                          ^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `std::fs::create_dir_all`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:18:5
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 18 | use std::fs::create_dir_all;
Dec 17 21:16:51.408 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.408 INFO [stderr] warning: unused import: `std::mem`
Dec 17 21:16:51.408 INFO [stderr]   --> src/main.rs:19:5
Dec 17 21:16:51.408 INFO [stderr]    |
Dec 17 21:16:51.408 INFO [stderr] 19 | use std::mem;
Dec 17 21:16:51.408 INFO [stderr]    |     ^^^^^^^^
Dec 17 21:16:51.408 INFO [stderr] 
Dec 17 21:16:51.476 INFO [stderr] warning: unused variable: `buffer`
Dec 17 21:16:51.476 INFO [stderr]   --> src/main.rs:52:25
Dec 17 21:16:51.477 INFO [stderr]    |
Dec 17 21:16:51.477 INFO [stderr] 52 |                 let mut buffer: Vec<u8> = vec![0; libc::BUFSIZ as usize];
Dec 17 21:16:51.477 INFO [stderr]    |                         ^^^^^^ help: consider using `_buffer` instead
Dec 17 21:16:51.477 INFO [stderr]    |
Dec 17 21:16:51.477 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:16:51.477 INFO [stderr] 
Dec 17 21:16:51.482 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.482 INFO [stderr]   --> src/main.rs:52:21
Dec 17 21:16:51.482 INFO [stderr]    |
Dec 17 21:16:51.482 INFO [stderr] 52 |                 let mut buffer: Vec<u8> = vec![0; libc::BUFSIZ as usize];
Dec 17 21:16:51.482 INFO [stderr]    |                     ----^^^^^^
Dec 17 21:16:51.482 INFO [stderr]    |                     |
Dec 17 21:16:51.482 INFO [stderr]    |                     help: remove this `mut`
Dec 17 21:16:51.482 INFO [stderr]    |
Dec 17 21:16:51.482 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:16:51.482 INFO [stderr] 
Dec 17 21:16:51.497 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.497 INFO [stderr]   --> src/main.rs:32:41
Dec 17 21:16:51.497 INFO [stderr]    |
Dec 17 21:16:51.497 INFO [stderr] 32 |         Ok(ForkPtyResult::Parent(child, mut pty_master)) => {
Dec 17 21:16:51.497 INFO [stderr]    |                                         ----^^^^^^^^^^
Dec 17 21:16:51.497 INFO [stderr]    |                                         |
Dec 17 21:16:51.497 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 21:16:51.497 INFO [stderr] 
Dec 17 21:16:51.497 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.497 INFO [stderr]   --> src/main.rs:79:18
Dec 17 21:16:51.497 INFO [stderr]    |
Dec 17 21:16:51.497 INFO [stderr] 79 |             let (mut in_stream, _) = in_listener.accept().unwrap();
Dec 17 21:16:51.497 INFO [stderr]    |                  ----^^^^^^^^^
Dec 17 21:16:51.497 INFO [stderr]    |                  |
Dec 17 21:16:51.497 INFO [stderr]    |                  help: remove this `mut`
Dec 17 21:16:51.497 INFO [stderr] 
Dec 17 21:16:51.523 INFO [stderr] warning: unused imports: `OFlag`, `open`
Dec 17 21:16:51.523 INFO [stderr]  --> src/main.rs:6:18
Dec 17 21:16:51.523 INFO [stderr]   |
Dec 17 21:16:51.523 INFO [stderr] 6 | use nix::fcntl::{OFlag, open};
Dec 17 21:16:51.523 INFO [stderr]   |                  ^^^^^  ^^^^
Dec 17 21:16:51.523 INFO [stderr]   |
Dec 17 21:16:51.523 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:16:51.523 INFO [stderr] 
Dec 17 21:16:51.523 INFO [stderr] warning: unused import: `std::process::Command`
Dec 17 21:16:51.523 INFO [stderr]  --> src/main.rs:7:5
Dec 17 21:16:51.523 INFO [stderr]   |
Dec 17 21:16:51.523 INFO [stderr] 7 | use std::process::Command;
Dec 17 21:16:51.523 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.523 INFO [stderr] 
Dec 17 21:16:51.523 INFO [stderr] warning: unused import: `nix::sys::wait::*`
Dec 17 21:16:51.523 INFO [stderr]  --> src/main.rs:9:5
Dec 17 21:16:51.523 INFO [stderr]   |
Dec 17 21:16:51.523 INFO [stderr] 9 | use nix::sys::wait::*;
Dec 17 21:16:51.523 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.523 INFO [stderr] 
Dec 17 21:16:51.523 INFO [stderr] warning: unused import: `std::os::unix::io::AsRawFd`
Dec 17 21:16:51.523 INFO [stderr]   --> src/main.rs:12:5
Dec 17 21:16:51.523 INFO [stderr]    |
Dec 17 21:16:51.523 INFO [stderr] 12 | use std::os::unix::io::AsRawFd;
Dec 17 21:16:51.523 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.523 INFO [stderr] 
Dec 17 21:16:51.523 INFO [stderr] warning: unused import: `std::os::unix::io::IntoRawFd`
Dec 17 21:16:51.523 INFO [stderr]   --> src/main.rs:13:5
Dec 17 21:16:51.523 INFO [stderr]    |
Dec 17 21:16:51.523 INFO [stderr] 13 | use std::os::unix::io::IntoRawFd;
Dec 17 21:16:51.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused import: `std::fs::OpenOptions`
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:14:5
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 14 | use std::fs::OpenOptions;
Dec 17 21:16:51.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused import: `UnixStream`
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:16:26
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 16 | use std::os::unix::net::{UnixStream, UnixListener};
Dec 17 21:16:51.524 INFO [stderr]    |                          ^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused import: `std::fs::create_dir_all`
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:18:5
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 18 | use std::fs::create_dir_all;
Dec 17 21:16:51.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused import: `std::mem`
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:19:5
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 19 | use std::mem;
Dec 17 21:16:51.524 INFO [stderr]    |     ^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:41:13
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 41 |             pty_master.resize(winsize);
Dec 17 21:16:51.524 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 21:16:51.524 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:54:17
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr] 54 |                 pty_master_reader.set_nonblocking(true);
Dec 17 21:16:51.524 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.524 INFO [stderr]    |
Dec 17 21:16:51.524 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.524 INFO [stderr] 
Dec 17 21:16:51.524 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.524 INFO [stderr]   --> src/main.rs:84:21
Dec 17 21:16:51.525 INFO [stderr]    |
Dec 17 21:16:51.525 INFO [stderr] 84 |                     pty_master_writer.write(&[byte.unwrap()]);
Dec 17 21:16:51.525 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.525 INFO [stderr]    |
Dec 17 21:16:51.525 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.525 INFO [stderr] 
Dec 17 21:16:51.525 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.525 INFO [stderr]   --> src/main.rs:97:13
Dec 17 21:16:51.525 INFO [stderr]    |
Dec 17 21:16:51.525 INFO [stderr] 97 | /             execvp(&command, &[
Dec 17 21:16:51.528 INFO [stderr] 98 | |                    CString::new("").unwrap(),
Dec 17 21:16:51.528 INFO [stderr] 99 | |             ]);
Dec 17 21:16:51.528 INFO [stderr]    | |_______________^
Dec 17 21:16:51.528 INFO [stderr]    |
Dec 17 21:16:51.528 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.528 INFO [stderr] 
Dec 17 21:16:51.600 INFO [stderr] warning: unused variable: `buffer`
Dec 17 21:16:51.600 INFO [stderr]   --> src/main.rs:52:25
Dec 17 21:16:51.600 INFO [stderr]    |
Dec 17 21:16:51.600 INFO [stderr] 52 |                 let mut buffer: Vec<u8> = vec![0; libc::BUFSIZ as usize];
Dec 17 21:16:51.600 INFO [stderr]    |                         ^^^^^^ help: consider using `_buffer` instead
Dec 17 21:16:51.600 INFO [stderr]    |
Dec 17 21:16:51.600 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:16:51.600 INFO [stderr] 
Dec 17 21:16:51.614 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.614 INFO [stderr]   --> src/main.rs:52:21
Dec 17 21:16:51.614 INFO [stderr]    |
Dec 17 21:16:51.615 INFO [stderr] 52 |                 let mut buffer: Vec<u8> = vec![0; libc::BUFSIZ as usize];
Dec 17 21:16:51.615 INFO [stderr]    |                     ----^^^^^^
Dec 17 21:16:51.616 INFO [stderr]    |                     |
Dec 17 21:16:51.616 INFO [stderr]    |                     help: remove this `mut`
Dec 17 21:16:51.616 INFO [stderr]    |
Dec 17 21:16:51.616 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:16:51.616 INFO [stderr] 
Dec 17 21:16:51.616 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.616 INFO [stderr]   --> src/main.rs:32:41
Dec 17 21:16:51.616 INFO [stderr]    |
Dec 17 21:16:51.617 INFO [stderr] 32 |         Ok(ForkPtyResult::Parent(child, mut pty_master)) => {
Dec 17 21:16:51.617 INFO [stderr]    |                                         ----^^^^^^^^^^
Dec 17 21:16:51.617 INFO [stderr]    |                                         |
Dec 17 21:16:51.617 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 21:16:51.617 INFO [stderr] 
Dec 17 21:16:51.617 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:16:51.617 INFO [stderr]   --> src/main.rs:79:18
Dec 17 21:16:51.617 INFO [stderr]    |
Dec 17 21:16:51.617 INFO [stderr] 79 |             let (mut in_stream, _) = in_listener.accept().unwrap();
Dec 17 21:16:51.617 INFO [stderr]    |                  ----^^^^^^^^^
Dec 17 21:16:51.617 INFO [stderr]    |                  |
Dec 17 21:16:51.617 INFO [stderr]    |                  help: remove this `mut`
Dec 17 21:16:51.617 INFO [stderr] 
Dec 17 21:16:51.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.652 INFO [stderr]   --> src/main.rs:41:13
Dec 17 21:16:51.652 INFO [stderr]    |
Dec 17 21:16:51.652 INFO [stderr] 41 |             pty_master.resize(winsize);
Dec 17 21:16:51.652 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.652 INFO [stderr]    |
Dec 17 21:16:51.652 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 21:16:51.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.652 INFO [stderr] 
Dec 17 21:16:51.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.653 INFO [stderr]   --> src/main.rs:54:17
Dec 17 21:16:51.653 INFO [stderr]    |
Dec 17 21:16:51.653 INFO [stderr] 54 |                 pty_master_reader.set_nonblocking(true);
Dec 17 21:16:51.653 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.653 INFO [stderr]    |
Dec 17 21:16:51.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.653 INFO [stderr] 
Dec 17 21:16:51.653 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.653 INFO [stderr]   --> src/main.rs:84:21
Dec 17 21:16:51.653 INFO [stderr]    |
Dec 17 21:16:51.653 INFO [stderr] 84 |                     pty_master_writer.write(&[byte.unwrap()]);
Dec 17 21:16:51.653 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:16:51.653 INFO [stderr]    |
Dec 17 21:16:51.653 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.653 INFO [stderr] 
Dec 17 21:16:51.654 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:16:51.654 INFO [stderr]   --> src/main.rs:97:13
Dec 17 21:16:51.654 INFO [stderr]    |
Dec 17 21:16:51.654 INFO [stderr] 97 | /             execvp(&command, &[
Dec 17 21:16:51.654 INFO [stderr] 98 | |                    CString::new("").unwrap(),
Dec 17 21:16:51.654 INFO [stderr] 99 | |             ]);
Dec 17 21:16:51.654 INFO [stderr]    | |_______________^
Dec 17 21:16:51.654 INFO [stderr]    |
Dec 17 21:16:51.654 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:16:51.654 INFO [stderr] 
Dec 17 21:16:51.710 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Dec 17 21:16:52.346 INFO running `"docker" "inspect" "e7378df1b5169e977f36db14ce68c45f826bf1c399fcdcc3d808cb186d9616f9"`
Dec 17 21:16:52.710 INFO running `"docker" "rm" "-f" "e7378df1b5169e977f36db14ce68c45f826bf1c399fcdcc3d808cb186d9616f9"`
Dec 17 21:16:52.976 INFO [stdout] e7378df1b5169e977f36db14ce68c45f826bf1c399fcdcc3d808cb186d9616f9