[INFO] cloning repository https://github.com/skeyboy/rust_chapter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skeyboy/rust_chapter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskeyboy%2Frust_chapter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskeyboy%2Frust_chapter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5893cda3f72a818813e5b45ce7643855afd63de3
[INFO] checking skeyboy/rust_chapter against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskeyboy%2Frust_chapter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/skeyboy/rust_chapter
[INFO] finished tweaking git repo https://github.com/skeyboy/rust_chapter
[INFO] tweaked toml for git repo https://github.com/skeyboy/rust_chapter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skeyboy/rust_chapter on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skeyboy/rust_chapter 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0f0459f700fcbb56d48dc009ee390bce3287bd64a3fefe72909b87cbb632af0
[INFO] running `Command { std: "docker" "start" "-a" "e0f0459f700fcbb56d48dc009ee390bce3287bd64a3fefe72909b87cbb632af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0f0459f700fcbb56d48dc009ee390bce3287bd64a3fefe72909b87cbb632af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0f0459f700fcbb56d48dc009ee390bce3287bd64a3fefe72909b87cbb632af0", kill_on_drop: false }`
[INFO] [stdout] e0f0459f700fcbb56d48dc009ee390bce3287bd64a3fefe72909b87cbb632af0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d997bbde15106b373e0e6c417a8651d232a95002351ad72b49bfc7dc16cf74a2
[INFO] running `Command { std: "docker" "start" "-a" "d997bbde15106b373e0e6c417a8651d232a95002351ad72b49bfc7dc16cf74a2", kill_on_drop: false }`
[INFO] [stderr]     Checking chapter6 v0.1.0 (/opt/rustwide/workdir/chapter6)
[INFO] [stderr]     Checking chapter5 v0.1.0 (/opt/rustwide/workdir/chapter5)
[INFO] [stdout] warning: fields `kind` and `addr` are never read
[INFO] [stdout]   --> chapter6/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct IpAddr<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     kind: IpAddrKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     addr: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `IpAddr` is never constructed
[INFO] [stdout]  --> chapter6/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct IpAddr<'a> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `addr` are never read
[INFO] [stdout]   --> chapter6/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct IpAddr<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     kind: IpAddrKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     addr: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call` is never used
[INFO] [stdout]   --> chapter6/src/lib.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Message {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 24 |     fn call(&self){}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chapter6` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `User` is never constructed
[INFO] [stdout]  --> chapter5/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User<'a> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `aage`, and `addr` are never read
[INFO] [stdout]  --> chapter5/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User<'a> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     aage: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     addr: &'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chapter5` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d997bbde15106b373e0e6c417a8651d232a95002351ad72b49bfc7dc16cf74a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d997bbde15106b373e0e6c417a8651d232a95002351ad72b49bfc7dc16cf74a2", kill_on_drop: false }`
[INFO] [stdout] d997bbde15106b373e0e6c417a8651d232a95002351ad72b49bfc7dc16cf74a2
