[INFO] fetching crate kinds 0.2.0...
[INFO] checking kinds-0.2.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate kinds 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate kinds 0.2.0
[INFO] finished tweaking crates.io crate kinds 0.2.0
[INFO] tweaked toml for crates.io crate kinds 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kinds 0.2.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cc0ea41059ed645524c6875dabf951285f8c4c451642235130cc2a6e7ecd2490
[INFO] running `Command { std: "docker" "start" "-a" "cc0ea41059ed645524c6875dabf951285f8c4c451642235130cc2a6e7ecd2490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc0ea41059ed645524c6875dabf951285f8c4c451642235130cc2a6e7ecd2490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0ea41059ed645524c6875dabf951285f8c4c451642235130cc2a6e7ecd2490", kill_on_drop: false }`
[INFO] [stdout] cc0ea41059ed645524c6875dabf951285f8c4c451642235130cc2a6e7ecd2490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 73f49740e31f2a66f86387803782982ef6120c146a9e181473e2f16ded550dec
[INFO] running `Command { std: "docker" "start" "-a" "73f49740e31f2a66f86387803782982ef6120c146a9e181473e2f16ded550dec", kill_on_drop: false }`
[INFO] [stderr]     Checking kinds v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Fix` is never constructed
[INFO] [stdout]   --> src/kind.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct Fix<'a, K: Kind<'a> + 'a>(K::F<Fix<'a, K>>)
[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: struct `Slice` is never constructed
[INFO] [stdout]   --> src/kind.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |             struct Slice<'a>(::std::marker::PhantomData<&'a ()>);
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Array` is never constructed
[INFO] [stdout]   --> src/kind.rs:66:20
[INFO] [stdout]    |
[INFO] [stdout] 66 |             struct Array<const N: usize>;
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Fix` is never constructed
[INFO] [stdout]   --> src/kind.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct Fix<'a, K: Kind<'a> + 'a>(K::F<Fix<'a, K>>)
[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: struct `Slice` is never constructed
[INFO] [stdout]   --> src/kind.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |             struct Slice<'a>(::std::marker::PhantomData<&'a ()>);
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Array` is never constructed
[INFO] [stdout]   --> src/kind.rs:66:20
[INFO] [stdout]    |
[INFO] [stdout] 66 |             struct Array<const N: usize>;
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kinds` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `kinds` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "73f49740e31f2a66f86387803782982ef6120c146a9e181473e2f16ded550dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f49740e31f2a66f86387803782982ef6120c146a9e181473e2f16ded550dec", kill_on_drop: false }`
[INFO] [stdout] 73f49740e31f2a66f86387803782982ef6120c146a9e181473e2f16ded550dec
