[INFO] fetching crate flexpiler_derive 0.2.1...
[INFO] testing flexpiler_derive-0.2.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate flexpiler_derive 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate flexpiler_derive 0.2.1
[INFO] finished tweaking crates.io crate flexpiler_derive 0.2.1
[INFO] tweaked toml for crates.io crate flexpiler_derive 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flexpiler_derive 0.2.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed8d3964c1bcee9e77989be26369672930c212ce94db48f217b5cf743de6651e
[INFO] running `Command { std: "docker" "start" "-a" "ed8d3964c1bcee9e77989be26369672930c212ce94db48f217b5cf743de6651e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed8d3964c1bcee9e77989be26369672930c212ce94db48f217b5cf743de6651e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed8d3964c1bcee9e77989be26369672930c212ce94db48f217b5cf743de6651e", kill_on_drop: false }`
[INFO] [stdout] ed8d3964c1bcee9e77989be26369672930c212ce94db48f217b5cf743de6651e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cad5742c95db073d626312e3077e9f3a3e9ffddbf53e92b68bde1f1d351c2a70
[INFO] running `Command { std: "docker" "start" "-a" "cad5742c95db073d626312e3077e9f3a3e9ffddbf53e92b68bde1f1d351c2a70", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling flexpiler_derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/core/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::definition`
[INFO] [stdout]  --> src/core/implementation/data_context/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::core::definition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/core/implementation/flexpiler.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/enum_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/struct_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::var`
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::var;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/data_argumented_deserialization.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let variable_argumented_intermediary_field_type_ref_vec_ref = &parameter.variant_argumented_intermediary_ref.field_type_ref...
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout]   --> src/core/implementation/deserializer/deserializer_trait_impl/data_context_deserialization.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let variable_complex_intermediary_field_ident_ref_vec_ref = &parameter.variable_complex_intermediary_ref.field_ident_ref_vec;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_intermediary_ident_string_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/mod.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let enum_intermediary_ident_string_ref = &parameter.enum_intermediary_ref.ident_string;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_intermediary_ident_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_ident_ref`
[INFO] [stdout]   --> src/core/intermediary/data_context.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let enum_ident_ref = &parameter.enum_definition_ref.ident;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_ident_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParameterGenerics` is never constructed
[INFO] [stdout]  --> src/core/implementation/generics_where/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ParameterGenerics<'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: fields `ident_ref` and `ident_string` are never read
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantStandalone<'a> {
[INFO] [stdout]   |            ----------------- fields in this struct
[INFO] [stdout] 7 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 8 |     pub ident_string: std::string::String,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ident_ref` is never read
[INFO] [stdout]   --> src/core/intermediary/enum_rustc.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct VariantArgumented<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 14 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `Command { std: "docker" "inspect" "cad5742c95db073d626312e3077e9f3a3e9ffddbf53e92b68bde1f1d351c2a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cad5742c95db073d626312e3077e9f3a3e9ffddbf53e92b68bde1f1d351c2a70", kill_on_drop: false }`
[INFO] [stdout] cad5742c95db073d626312e3077e9f3a3e9ffddbf53e92b68bde1f1d351c2a70
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d20432f02819d896c7819ab56851d6e4870b5ca479ffc9ebef1d34bc9acc7548
[INFO] running `Command { std: "docker" "start" "-a" "d20432f02819d896c7819ab56851d6e4870b5ca479ffc9ebef1d34bc9acc7548", kill_on_drop: false }`
[INFO] [stderr]    Compiling flexpiler_derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/core/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::definition`
[INFO] [stdout]  --> src/core/implementation/data_context/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::core::definition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/core/implementation/flexpiler.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/enum_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/struct_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::var`
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::var;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/core/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::definition`
[INFO] [stdout]  --> src/core/implementation/data_context/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::core::definition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/core/implementation/flexpiler.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/enum_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::implementation`
[INFO] [stdout]  --> src/core/intermediary/deserializer/struct_rustc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::core::implementation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::var`
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::var;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/data_argumented_deserialization.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let variable_argumented_intermediary_field_type_ref_vec_ref = &parameter.variant_argumented_intermediary_ref.field_type_ref...
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/data_argumented_deserialization.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let variable_argumented_intermediary_field_type_ref_vec_ref = &parameter.variant_argumented_intermediary_ref.field_type_ref...
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout]   --> src/core/implementation/deserializer/deserializer_trait_impl/data_context_deserialization.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let variable_complex_intermediary_field_ident_ref_vec_ref = &parameter.variable_complex_intermediary_ref.field_ident_ref_vec;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout]   --> src/core/implementation/deserializer/deserializer_trait_impl/data_context_deserialization.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let variable_complex_intermediary_field_ident_ref_vec_ref = &parameter.variable_complex_intermediary_ref.field_ident_ref_vec;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_intermediary_ident_string_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/mod.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let enum_intermediary_ident_string_ref = &parameter.enum_intermediary_ref.ident_string;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_intermediary_ident_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_ident_ref`
[INFO] [stdout]   --> src/core/intermediary/data_context.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let enum_ident_ref = &parameter.enum_definition_ref.ident;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_ident_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParameterGenerics` is never constructed
[INFO] [stdout]  --> src/core/implementation/generics_where/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ParameterGenerics<'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: fields `ident_ref` and `ident_string` are never read
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantStandalone<'a> {
[INFO] [stdout]   |            ----------------- fields in this struct
[INFO] [stdout] 7 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 8 |     pub ident_string: std::string::String,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ident_ref` is never read
[INFO] [stdout]   --> src/core/intermediary/enum_rustc.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct VariantArgumented<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 14 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_intermediary_ident_string_ref`
[INFO] [stdout]    --> src/core/implementation/deserializer/deserializer_trait_impl/mod.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let enum_intermediary_ident_string_ref = &parameter.enum_intermediary_ref.ident_string;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_intermediary_ident_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_ident_ref`
[INFO] [stdout]   --> src/core/intermediary/data_context.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let enum_ident_ref = &parameter.enum_definition_ref.ident;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_ident_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParameterGenerics` is never constructed
[INFO] [stdout]  --> src/core/implementation/generics_where/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ParameterGenerics<'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: fields `ident_ref` and `ident_string` are never read
[INFO] [stdout]  --> src/core/intermediary/enum_rustc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VariantStandalone<'a> {
[INFO] [stdout]   |            ----------------- fields in this struct
[INFO] [stdout] 7 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 8 |     pub ident_string: std::string::String,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ident_ref` is never read
[INFO] [stdout]   --> src/core/intermediary/enum_rustc.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct VariantArgumented<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 14 |     pub ident_ref: &'a syn::Ident,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "d20432f02819d896c7819ab56851d6e4870b5ca479ffc9ebef1d34bc9acc7548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d20432f02819d896c7819ab56851d6e4870b5ca479ffc9ebef1d34bc9acc7548", kill_on_drop: false }`
[INFO] [stdout] d20432f02819d896c7819ab56851d6e4870b5ca479ffc9ebef1d34bc9acc7548
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07be55248287f62d10e698a763031da64ba9fb38261b1b175f53cbb98994f9f3
[INFO] running `Command { std: "docker" "start" "-a" "07be55248287f62d10e698a763031da64ba9fb38261b1b175f53cbb98994f9f3", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `error::Error`
[INFO] [stderr]  --> src/core/mod.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub use error::Error;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::core::definition`
[INFO] [stderr]  --> src/core/implementation/data_context/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::core::definition;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]  --> src/core/implementation/flexpiler.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::core::implementation`
[INFO] [stderr]  --> src/core/intermediary/deserializer/enum_rustc.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::core::implementation;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::core::implementation`
[INFO] [stderr]  --> src/core/intermediary/deserializer/struct_rustc.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::core::implementation;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env::var`
[INFO] [stderr]  --> src/core/intermediary/enum_rustc.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env::var;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stderr]    --> src/core/implementation/deserializer/deserializer_trait_impl/data_argumented_deserialization.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let variable_argumented_intermediary_field_type_ref_vec_ref = &parameter.variant_argumented_intermediary_ref.field_type_ref...
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_argumented_intermediary_field_type_ref_vec_ref`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stderr]   --> src/core/implementation/deserializer/deserializer_trait_impl/data_context_deserialization.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let variable_complex_intermediary_field_ident_ref_vec_ref = &parameter.variable_complex_intermediary_ref.field_ident_ref_vec;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_complex_intermediary_field_ident_ref_vec_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `enum_intermediary_ident_string_ref`
[INFO] [stderr]    --> src/core/implementation/deserializer/deserializer_trait_impl/mod.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let enum_intermediary_ident_string_ref = &parameter.enum_intermediary_ref.ident_string;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_intermediary_ident_string_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `enum_ident_ref`
[INFO] [stderr]   --> src/core/intermediary/data_context.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let enum_ident_ref = &parameter.enum_definition_ref.ident;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_ident_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ParameterGenerics` is never constructed
[INFO] [stderr]  --> src/core/implementation/generics_where/mod.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ParameterGenerics<'a> {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ident_ref` and `ident_string` are never read
[INFO] [stderr]  --> src/core/intermediary/enum_rustc.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct VariantStandalone<'a> {
[INFO] [stderr]   |            ----------------- fields in this struct
[INFO] [stderr] 7 |     pub ident_ref: &'a syn::Ident,
[INFO] [stderr]   |         ^^^^^^^^^
[INFO] [stderr] 8 |     pub ident_string: std::string::String,
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `ident_ref` is never read
[INFO] [stderr]   --> src/core/intermediary/enum_rustc.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct VariantArgumented<'a> {
[INFO] [stderr]    |            ----------------- field in this struct
[INFO] [stderr] 14 |     pub ident_ref: &'a syn::Ident,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `flexpiler_derive` (lib) generated 13 warnings (run `cargo fix --lib -p flexpiler_derive` to apply 10 suggestions)
[INFO] [stderr] warning: `flexpiler_derive` (lib test) generated 13 warnings (13 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flexpiler_derive-7f03f4a61492c117)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests flexpiler_derive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07be55248287f62d10e698a763031da64ba9fb38261b1b175f53cbb98994f9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07be55248287f62d10e698a763031da64ba9fb38261b1b175f53cbb98994f9f3", kill_on_drop: false }`
[INFO] [stdout] 07be55248287f62d10e698a763031da64ba9fb38261b1b175f53cbb98994f9f3