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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/youngday/easy_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoungday%2Feasy_example", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00ca7f32899f18c539fda3859ac8657962d0cb1d
[INFO] checking youngday/easy_example against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoungday%2Feasy_example" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/youngday/easy_example on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] finished tweaking git repo https://github.com/youngday/easy_example
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[INFO] crate git repo https://github.com/youngday/easy_example already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: the item `rumqttc` is imported redundantly
[INFO] [stdout]  --> examples/mqtt-asyncpubsub.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rumqttc::{self, AsyncClient, MqttOptions, QoS};
[INFO] [stdout]   |               ^^^^ the item `rumqttc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `trace`, `warn`
[INFO] [stdout]  --> examples/base64.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, error, info, trace, warn};
[INFO] [stdout]   |           ^^^^^  ^^^^^        ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs`
[INFO] [stdout]  --> examples/base64.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `alphabet`, `self`
[INFO] [stdout]  --> examples/base64.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | use base64::{Engine as _, engine::{self, general_purpose}, alphabet};
[INFO] [stdout]   |                                    ^^^^                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> examples/tcp-server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> examples/tcp-client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> examples/post.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> examples/zeromq-tmq.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.56s
[INFO] running `Command { std: "docker" "inspect" "e2c29650ff155731102dd955c56bceefd3dbf0a7980d23aea0566996a77bbd78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c29650ff155731102dd955c56bceefd3dbf0a7980d23aea0566996a77bbd78", kill_on_drop: false }`
[INFO] [stdout] e2c29650ff155731102dd955c56bceefd3dbf0a7980d23aea0566996a77bbd78