[INFO] cloning repository https://github.com/ykxVK8yL5L/mymqtt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ykxVK8yL5L/mymqtt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FykxVK8yL5L%2Fmymqtt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FykxVK8yL5L%2Fmymqtt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37dd40dc71a48afabbc6957f1c2514b8cf16d494
[INFO] checking ykxVK8yL5L/mymqtt against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FykxVK8yL5L%2Fmymqtt" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ykxVK8yL5L/mymqtt
[INFO] finished tweaking git repo https://github.com/ykxVK8yL5L/mymqtt
[INFO] tweaked toml for git repo https://github.com/ykxVK8yL5L/mymqtt written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ykxVK8yL5L/mymqtt 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/ykxVK8yL5L/mymqtt 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]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]     Updating cmake v0.1.45 -> v0.1.50 (available: v0.1.58)
[INFO] [stderr]       Adding paho-mqtt v0.11.1 (available: v0.14.0)
[INFO] [stderr]       Adding paho-mqtt-sys v0.7.2
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded terminal_size v0.2.1
[INFO] [stderr]   Downloaded dunce v1.0.3
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded paho-mqtt v0.11.1
[INFO] [stderr]   Downloaded rustix v0.35.11
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded fsio v0.4.0
[INFO] [stderr]   Downloaded run_script v0.10.0
[INFO] [stderr]   Downloaded paho-mqtt-sys v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6b8323d1b7b5e9e5a6e7584269c11061e13b6c5ccd9d0243d6b41e2d56f223ae
[INFO] running `Command { std: "docker" "start" "-a" "6b8323d1b7b5e9e5a6e7584269c11061e13b6c5ccd9d0243d6b41e2d56f223ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b8323d1b7b5e9e5a6e7584269c11061e13b6c5ccd9d0243d6b41e2d56f223ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b8323d1b7b5e9e5a6e7584269c11061e13b6c5ccd9d0243d6b41e2d56f223ae", kill_on_drop: false }`
[INFO] [stdout] 6b8323d1b7b5e9e5a6e7584269c11061e13b6c5ccd9d0243d6b41e2d56f223ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 55dceff2b930503ad7361afb2225b7888c258497ab6e4983a41e570d494dcd23
[INFO] running `Command { std: "docker" "start" "-a" "55dceff2b930503ad7361afb2225b7888c258497ab6e4983a41e570d494dcd23", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling io-lifetimes v0.7.3
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling rustix v0.35.11
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling paho-mqtt-sys v0.7.2
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[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 fsio v0.4.0
[INFO] [stderr]     Checking run_script v0.10.0
[INFO] [stderr]     Checking terminal_size v0.2.1
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.16
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking futures-executor v0.3.24
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]     Checking paho-mqtt v0.11.1
[INFO] [stderr]     Checking serde_json v1.0.85
[INFO] [stderr]     Checking mymqtt v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::process::CommandEnvs`
[INFO] [stdout]  --> src/sub/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::CommandEnvs;
[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: `Deserializer` and `de`
[INFO] [stdout]   --> src/sub/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde::{de, Deserialize, Deserializer,Serialize};
[INFO] [stdout]    |             ^^               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Level`, `debug`, and `info`
[INFO] [stdout]   --> src/sub/main.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tracing::{info,debug,error,Level};
[INFO] [stdout]    |               ^^^^ ^^^^^       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::fmt::format`
[INFO] [stdout]   --> src/sub/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::fmt::format;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]   --> src/sub/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | use clap::{Parser, Arg};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, and `de`
[INFO] [stdout]  --> src/pub/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::{de, Deserialize, Deserializer};
[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: `Level`, `debug`, `error`, and `info`
[INFO] [stdout]  --> src/pub/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{info,debug,error,Level};
[INFO] [stdout]   |               ^^^^ ^^^^^ ^^^^^ ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::fmt::format`
[INFO] [stdout]  --> src/pub/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tracing_subscriber::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]   --> src/pub/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{Parser, Arg};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Deserializer`, and `de`
[INFO] [stdout]  --> src/pub/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::{de, Deserialize, Deserializer};
[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: `Level`, `debug`, `error`, and `info`
[INFO] [stdout]  --> src/pub/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{info,debug,error,Level};
[INFO] [stdout]   |               ^^^^ ^^^^^ ^^^^^ ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::fmt::format`
[INFO] [stdout]  --> src/pub/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tracing_subscriber::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]   --> src/pub/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{Parser, Arg};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::CommandEnvs`
[INFO] [stdout]  --> src/sub/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::CommandEnvs;
[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: `Deserializer` and `de`
[INFO] [stdout]   --> src/sub/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde::{de, Deserialize, Deserializer,Serialize};
[INFO] [stdout]    |             ^^               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Level`, `debug`, and `info`
[INFO] [stdout]   --> src/sub/main.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tracing::{info,debug,error,Level};
[INFO] [stdout]    |               ^^^^ ^^^^^       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::fmt::format`
[INFO] [stdout]   --> src/sub/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::fmt::format;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]   --> src/sub/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | use clap::{Parser, Arg};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sub/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| {
[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: `e`
[INFO] [stdout]    --> src/sub/main.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 Err(e)=>{
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/sub/main.rs:171:21
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 Err(e)=>{
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/sub/main.rs:188:33
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   Ok((code,output,error))=>{
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/sub/main.rs:188:45
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   Ok((code,output,error))=>{
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sub/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut cli = mqtt::Client::new(create_opts).unwrap_or_else(|err| {
[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: `e`
[INFO] [stdout]    --> src/sub/main.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 Err(e)=>{
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/sub/main.rs:171:21
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 Err(e)=>{
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/sub/main.rs:188:33
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   Ok((code,output,error))=>{
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/sub/main.rs:188:45
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   Ok((code,output,error))=>{
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.61s
[INFO] running `Command { std: "docker" "inspect" "55dceff2b930503ad7361afb2225b7888c258497ab6e4983a41e570d494dcd23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55dceff2b930503ad7361afb2225b7888c258497ab6e4983a41e570d494dcd23", kill_on_drop: false }`
[INFO] [stdout] 55dceff2b930503ad7361afb2225b7888c258497ab6e4983a41e570d494dcd23
