[INFO] cloning repository https://github.com/chenwanqq/my_scan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenwanqq/my_scan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenwanqq%2Fmy_scan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenwanqq%2Fmy_scan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2964f234dff1267035d2cadcc0d12d44442c68c
[INFO] checking chenwanqq/my_scan against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenwanqq%2Fmy_scan" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chenwanqq/my_scan
[INFO] finished tweaking git repo https://github.com/chenwanqq/my_scan
[INFO] tweaked toml for git repo https://github.com/chenwanqq/my_scan written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chenwanqq/my_scan on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chenwanqq/my_scan 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_transport v0.31.0
[INFO] [stderr]   Downloaded pnet_sys v0.31.0
[INFO] [stderr]   Downloaded ipnetwork v0.19.0
[INFO] [stderr]   Downloaded pnet_base v0.31.0
[INFO] [stderr]   Downloaded pnet v0.31.0
[INFO] [stderr]   Downloaded pnet_datalink v0.31.0
[INFO] [stderr]   Downloaded pnet_macros v0.31.0
[INFO] [stderr]   Downloaded pnet_packet v0.31.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.31.0
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c76e947d944cd8c6ba208a2e0f91941ef469ac8763bae874077ff675816fae12
[INFO] running `Command { std: "docker" "start" "-a" "c76e947d944cd8c6ba208a2e0f91941ef469ac8763bae874077ff675816fae12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76e947d944cd8c6ba208a2e0f91941ef469ac8763bae874077ff675816fae12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76e947d944cd8c6ba208a2e0f91941ef469ac8763bae874077ff675816fae12", kill_on_drop: false }`
[INFO] [stdout] c76e947d944cd8c6ba208a2e0f91941ef469ac8763bae874077ff675816fae12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f0f6b63612d2d1db41b147c33b55a85d0c014b9f7331d5b3b12a9e4c68905f8
[INFO] running `Command { std: "docker" "start" "-a" "8f0f6b63612d2d1db41b147c33b55a85d0c014b9f7331d5b3b12a9e4c68905f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling pnet v0.31.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking pnet_base v0.31.0
[INFO] [stderr]     Checking pnet_macros_support v0.31.0
[INFO] [stderr]     Checking pnet_sys v0.31.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ipnetwork v0.19.0
[INFO] [stderr]     Checking pnet_datalink v0.31.0
[INFO] [stderr]    Compiling pnet_macros v0.31.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking pnet_packet v0.31.0
[INFO] [stderr]     Checking pnet_transport v0.31.0
[INFO] [stderr]     Checking my_scan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/tcp.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |         ethernet::{self, EtherTypes, EthernetPacket, MutableEthernetPacket},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |         tcp::{MutableTcpPacket, TcpFlags, TcpOption, TcpPacket, self}, Packet, ipv6::Ipv6Packet,
[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: `fmt::Error`
[INFO] [stdout]  --> src/tcp.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use std::{net::Ipv4Addr, fmt::Error, str::FromStr};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/tcp.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |         ethernet::{self, EtherTypes, EthernetPacket, MutableEthernetPacket},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |         tcp::{MutableTcpPacket, TcpFlags, TcpOption, TcpPacket, self}, Packet, ipv6::Ipv6Packet,
[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: `fmt::Error`
[INFO] [stdout]  --> src/tcp.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use std::{net::Ipv4Addr, fmt::Error, str::FromStr};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/tcp.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         scanResult: &mut ScanResult,
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv6Handler` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn ipv6Handler(frame: EthernetPacket) -> Result<PortInfo,&'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `ipv6_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portInfo` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:111:29
[INFO] [stdout]     |
[INFO] [stdout] 111 |                         let portInfo = PortInfo {
[INFO] [stdout]     |                             ^^^^^^^^ help: convert the identifier to snake case: `port_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv4Handler` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn ipv4Handler(frame: EthernetPacket) -> Result<PortInfo,&'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `ipv4_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portInfo` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:142:33
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...                   let portInfo = PortInfo {
[INFO] [stdout]     |                           ^^^^^^^^ help: convert the identifier to snake case: `port_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/tcp.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         scanResult: &mut ScanResult,
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv6Handler` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn ipv6Handler(frame: EthernetPacket) -> Result<PortInfo,&'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `ipv6_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portInfo` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:111:29
[INFO] [stdout]     |
[INFO] [stdout] 111 |                         let portInfo = PortInfo {
[INFO] [stdout]     |                             ^^^^^^^^ help: convert the identifier to snake case: `port_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv4Handler` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn ipv4Handler(frame: EthernetPacket) -> Result<PortInfo,&'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `ipv4_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portInfo` should have a snake case name
[INFO] [stdout]    --> src/tcp.rs:142:33
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...                   let portInfo = PortInfo {
[INFO] [stdout]     |                           ^^^^^^^^ help: convert the identifier to snake case: `port_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::env;
[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: `tokio::spawn`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::spawn;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `my_scan::result::result::ScanResult`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use my_scan::result::result::ScanResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::env;
[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: `tokio::spawn`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::spawn;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `my_scan::result::result::ScanResult`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use my_scan::result::result::ScanResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut scanResult = Arc::new(Mutex::new(HashSet::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: `ipv6`
[INFO] [stdout]   --> src/main.rs:27:34
[INFO] [stdout]    |
[INFO] [stdout] 27 |             std::net::IpAddr::V6(ipv6) => {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_ipv6`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_thread`
[INFO] [stdout]   --> src/main.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let send_thread = tokio::spawn(async move {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/main.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut scanResult = Arc::new(Mutex::new(HashSet::new()));
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut scanResult = scanResult.clone();
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     receive_thread.await;
[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] 59 |     let _ = receive_thread.await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut scanResult = Arc::new(Mutex::new(HashSet::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: `ipv6`
[INFO] [stdout]   --> src/main.rs:27:34
[INFO] [stdout]    |
[INFO] [stdout] 27 |             std::net::IpAddr::V6(ipv6) => {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_ipv6`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_thread`
[INFO] [stdout]   --> src/main.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let send_thread = tokio::spawn(async move {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/main.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut scanResult = Arc::new(Mutex::new(HashSet::new()));
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scanResult` should have a snake case name
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut scanResult = scanResult.clone();
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `scan_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     receive_thread.await;
[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] 59 |     let _ = receive_thread.await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.84s
[INFO] running `Command { std: "docker" "inspect" "8f0f6b63612d2d1db41b147c33b55a85d0c014b9f7331d5b3b12a9e4c68905f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0f6b63612d2d1db41b147c33b55a85d0c014b9f7331d5b3b12a9e4c68905f8", kill_on_drop: false }`
[INFO] [stdout] 8f0f6b63612d2d1db41b147c33b55a85d0c014b9f7331d5b3b12a9e4c68905f8
