[INFO] cloning repository https://github.com/MrInternauta/Rust_HelloWorld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrInternauta/Rust_HelloWorld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrInternauta%2FRust_HelloWorld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrInternauta%2FRust_HelloWorld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7395a75fa4fa6b13bf6c733cd083d7e2a61e998d
[INFO] checking MrInternauta/Rust_HelloWorld against 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa for pr-159356
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrInternauta%2FRust_HelloWorld" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MrInternauta/Rust_HelloWorld
[INFO] finished tweaking git repo https://github.com/MrInternauta/Rust_HelloWorld
[INFO] tweaked toml for git repo https://github.com/MrInternauta/Rust_HelloWorld written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MrInternauta/Rust_HelloWorld on toolchain 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MrInternauta/Rust_HelloWorld 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" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b
[INFO] running `Command { std: "docker" "start" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/main.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     struct Unit;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]   --> src/main.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |   enum WebEvent {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/main.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |     struct KeyPress(String, char);
[INFO] [stdout]    |            -------- ^^^^^^  ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `KeyPress` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/main.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |     struct MouseClick { x: i64, y: i64 }
[INFO] [stdout]    |            ----------   ^       ^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MouseClick` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                      ------ ^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(()), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:44
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                                    ------- ^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(bool), WEClick(()), WEKeys(KeyPress) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:64
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                                                         ------ ^^^^^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(()) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/main.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     struct Unit;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]   --> src/main.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |   enum WebEvent {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/main.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |     struct KeyPress(String, char);
[INFO] [stdout]    |            -------- ^^^^^^  ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `KeyPress` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/main.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |     struct MouseClick { x: i64, y: i64 }
[INFO] [stdout]    |            ----------   ^       ^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MouseClick` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                      ------ ^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(()), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:44
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                                    ------- ^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(bool), WEClick(()), WEKeys(KeyPress) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:92:64
[INFO] [stdout]    |
[INFO] [stdout] 92 |     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout]    |                                                         ------ ^^^^^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebEvent2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 92 -     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(KeyPress) }
[INFO] [stdout] 92 +     enum WebEvent2 { WELoad(bool), WEClick(MouseClick), WEKeys(()) }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b", kill_on_drop: false }`
[INFO] [stdout] 507cb01850cfe716f78490d1d8003192491841da5f7ff37e0fe31eb61746b65b
