[INFO] fetching crate pyo3 0.20.0...
[INFO] checking pyo3-0.20.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate pyo3 0.20.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate pyo3 0.20.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate pyo3 0.20.0
[INFO] finished tweaking crates.io crate pyo3 0.20.0
[INFO] tweaked toml for crates.io crate pyo3 0.20.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inventory v0.3.15
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.20.0
[INFO] [stderr]   Downloaded pyo3-macros v0.20.0
[INFO] [stderr]   Downloaded pyo3-ffi v0.20.0
[INFO] [stderr]   Downloaded python3-dll-a v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc5f838ac6978a082de8e70cac198cba48ef412c705f2ac91c6f6d1312d5d916
[INFO] running `Command { std: "docker" "start" "-a" "fc5f838ac6978a082de8e70cac198cba48ef412c705f2ac91c6f6d1312d5d916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc5f838ac6978a082de8e70cac198cba48ef412c705f2ac91c6f6d1312d5d916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc5f838ac6978a082de8e70cac198cba48ef412c705f2ac91c6f6d1312d5d916", kill_on_drop: false }`
[INFO] [stdout] fc5f838ac6978a082de8e70cac198cba48ef412c705f2ac91c6f6d1312d5d916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 001fceae3a95e3da474614f9aa93a7a6f51a5425131d0d6815c31c2d99f67bfe
[INFO] running `Command { std: "docker" "start" "-a" "001fceae3a95e3da474614f9aa93a7a6f51a5425131d0d6815c31c2d99f67bfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling trybuild v1.0.89
[INFO] [stderr]    Compiling rust_decimal v1.34.3
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking unindent v0.2.3
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking widestring v0.5.1
[INFO] [stderr]     Checking send_wrapper v0.6.0
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]    Compiling pyo3-build-config v0.20.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking chrono v0.4.34
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]    Compiling pyo3-ffi v0.20.0
[INFO] [stderr]    Compiling pyo3 v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pyo3-macros-backend v0.20.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling pyo3-macros v0.20.0
[INFO] [stdout] warning: unused import: `crate::conversions::*`
[INFO] [stdout]    --> src/lib.rs:436:9
[INFO] [stdout]     |
[INFO] [stdout] 436 | pub use crate::conversions::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking basic-toml v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: field `0` is never read
[INFO] [stdout]    --> tests/test_frompyobject.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Foo(Foo<'a>),
[INFO] [stdout]     |     --- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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] 424 |     Foo(()),
[INFO] [stdout]     |         ~~
[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: 2 warnings 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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Traversable` is never used
[INFO] [stdout]    --> tests/test_gc.rs:401:7
[INFO] [stdout]     |
[INFO] [stdout] 401 | trait Traversable {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner::*`
[INFO] [stdout]    --> tests/../src/tests/common.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub use inner::*;
[INFO] [stdout]     |         ^^^^^^^^
[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] [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] [stdout] warning: unused import: `crate::conversions::*`
[INFO] [stdout]    --> src/lib.rs:436:9
[INFO] [stdout]     |
[INFO] [stdout] 436 | pub use crate::conversions::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/tests/hygiene/misc.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Derive1(i32); // newtype case
[INFO] [stdout]   |        ------- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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] 5 | struct Derive1(()); // newtype case
[INFO] [stdout]   |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.01s
[INFO] running `Command { std: "docker" "inspect" "001fceae3a95e3da474614f9aa93a7a6f51a5425131d0d6815c31c2d99f67bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001fceae3a95e3da474614f9aa93a7a6f51a5425131d0d6815c31c2d99f67bfe", kill_on_drop: false }`
[INFO] [stdout] 001fceae3a95e3da474614f9aa93a7a6f51a5425131d0d6815c31c2d99f67bfe
