[INFO] cloning repository https://github.com/mzgoddard/bench-tessel-protocol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mzgoddard/bench-tessel-protocol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzgoddard%2Fbench-tessel-protocol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzgoddard%2Fbench-tessel-protocol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c1f5d9c87fd3cbf8f23a0cb6c3448eb29109025
[INFO] checking mzgoddard/bench-tessel-protocol against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzgoddard%2Fbench-tessel-protocol" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mzgoddard/bench-tessel-protocol on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mzgoddard/bench-tessel-protocol
[INFO] finished tweaking git repo https://github.com/mzgoddard/bench-tessel-protocol
[INFO] tweaked toml for git repo https://github.com/mzgoddard/bench-tessel-protocol written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/mzgoddard/bench-tessel-protocol already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad305b007a5b47f73aec8748f2a5921bb0780a7987e14f044937b7e8e7a404be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ad305b007a5b47f73aec8748f2a5921bb0780a7987e14f044937b7e8e7a404be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad305b007a5b47f73aec8748f2a5921bb0780a7987e14f044937b7e8e7a404be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad305b007a5b47f73aec8748f2a5921bb0780a7987e14f044937b7e8e7a404be", kill_on_drop: false }`
[INFO] [stdout] ad305b007a5b47f73aec8748f2a5921bb0780a7987e14f044937b7e8e7a404be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dbd6938ce0170e9e7057186c057f0db48dc9f8d892e5a531a2d40d4c61edc781
[INFO] running `Command { std: "docker" "start" "-a" "dbd6938ce0170e9e7057186c057f0db48dc9f8d892e5a531a2d40d4c61edc781", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking tessel v0.2.0
[INFO] [stderr]     Checking blinky v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::*`
[INFO] [stdout]  --> src/bin/baseline_unixstream.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/baseline_unixstream.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnixListener`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::thread::{yield_now, sleep};
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_tcp_streamed.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Instant, Duration};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sleep`, `yield_now`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]   |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_stdio_pipes.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/bin/process_unix_streamed.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                            ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_unix_streamed.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `OpenOptions`
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::*`
[INFO] [stdout]  --> src/bin/process_kmod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/bin/process_kmod.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                            ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_kmod.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]   --> src/bin/process_kmod.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_kmod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/bin/process_kmod.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/bin/process_kmod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/bin/process_kmod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::*`
[INFO] [stdout]  --> src/bin/baseline_unixstream.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/baseline_unixstream.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnixListener`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/bin/baseline_unixstream.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut l = UnixListener::bind("/tmp/bench_unixstream").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_tcp_streamed.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::*`
[INFO] [stdout]  --> src/bin/process_kmod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::iter::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/bin/process_kmod.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                            ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_kmod.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]   --> src/bin/process_kmod.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]    |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_kmod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/bin/process_kmod.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/bin/process_kmod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/bin/process_kmod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut l = TcpListener::bind("127.0.0.1:6767").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 f.read_exact(&mut fb).is_ok();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         remove_file("/tmp/bench_unixstream");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut l = UnixListener::bind("/tmp/bench_unixstream").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/bin/process_unix_streamed.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                            ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/bin/process_unix_streamed.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `OpenOptions`
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Instant, Duration};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sleep`, `yield_now`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::{yield_now, sleep};
[INFO] [stdout]   |                   ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UnixListener`, `UnixStream`
[INFO] [stdout]  --> src/bin/process_stdio_pipes.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::os::unix::net::{UnixStream, UnixListener};
[INFO] [stdout]   |                          ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::remove_file`
[INFO] [stdout]   --> src/bin/process_stdio_pipes.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::fs::remove_file;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         remove_file("/tmp/bench_unixstream");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::thread::{yield_now, sleep};
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::fs::{File, OpenOptions};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut l = UnixListener::bind("/tmp/bench_unixstream").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_tcp_streamed.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut l = TcpListener::bind("127.0.0.1:6767").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         remove_file("/tmp/bench_unixstream");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cid`
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let cid = match &child { &Some(ref c) => c.id(), &None => 0 };
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_cid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut l = UnixListener::bind("/tmp/bench_unixstream").unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 f.read_exact(&mut fb).is_ok();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/process_unix_streamed_led.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         remove_file("/tmp/bench_unixstream");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "dbd6938ce0170e9e7057186c057f0db48dc9f8d892e5a531a2d40d4c61edc781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd6938ce0170e9e7057186c057f0db48dc9f8d892e5a531a2d40d4c61edc781", kill_on_drop: false }`
[INFO] [stdout] dbd6938ce0170e9e7057186c057f0db48dc9f8d892e5a531a2d40d4c61edc781