[INFO] cloning repository https://github.com/anshulsanghi-blog/macros-handbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anshulsanghi-blog/macros-handbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanshulsanghi-blog%2Fmacros-handbook", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 610b43c1f0aa36e87f970a9d774c2689a9439ee9
[INFO] checking anshulsanghi-blog/macros-handbook against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanshulsanghi-blog%2Fmacros-handbook" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anshulsanghi-blog/macros-handbook
[INFO] finished tweaking git repo https://github.com/anshulsanghi-blog/macros-handbook
[INFO] tweaked toml for git repo https://github.com/anshulsanghi-blog/macros-handbook written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anshulsanghi-blog/macros-handbook on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anshulsanghi-blog/macros-handbook already has a lockfile, it will not be regenerated
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[INFO] [stdout] caa6c59dad73e4eb458eb2af373c6b082b963235cc15ea321ce63b76c2fd6ce2
[INFO] running `Command { std: "docker" "start" "-a" "caa6c59dad73e4eb458eb2af373c6b082b963235cc15ea321ce63b76c2fd6ce2", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> macros/src/custom_model.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let DeriveInput { data, ident, .. } = original_struct.clone();
[INFO] [stdout]    |                             ^^^^^ help: try ignoring the field: `ident: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> macros/src/custom_model.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let DeriveInput { data, ident, .. } = original_struct.clone();
[INFO] [stdout]    |                             ^^^^^ help: try ignoring the field: `ident: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> macros/src/custom_model.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let DeriveInput { data, ident, .. } = original_struct.clone();
[INFO] [stdout]    |                             ^^^^^ help: try ignoring the field: `ident: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ssri v9.2.0
[INFO] [stderr]     Checking cacache v13.0.0
[INFO] [stderr]     Checking macros-handbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `username`, `first_name`, `last_name`, and `age` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct User2 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     first_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 23 |     last_name: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 24 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `username` and `age` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(DeriveCustomModel)]
[INFO] [stdout]    |          ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashmap` is never used
[INFO] [stdout]   --> src/main.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn test_hashmap() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `username`, `first_name`, `last_name`, and `age` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct User2 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     first_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 23 |     last_name: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 24 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `username` and `age` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(DeriveCustomModel)]
[INFO] [stdout]    |          ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashmap` is never used
[INFO] [stdout]   --> src/main.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn test_hashmap() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.19s
[INFO] running `Command { std: "docker" "inspect" "6ad38a680484176712ddb9af6e3cbf4107ac53bf5a84e737566ebe9a6b93cb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad38a680484176712ddb9af6e3cbf4107ac53bf5a84e737566ebe9a6b93cb36", kill_on_drop: false }`
[INFO] [stdout] 6ad38a680484176712ddb9af6e3cbf4107ac53bf5a84e737566ebe9a6b93cb36
