[INFO] fetching crate ai-descriptor-derive 0.6.0...
[INFO] checking ai-descriptor-derive-0.6.0 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate ai-descriptor-derive 0.6.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ai-descriptor-derive 0.6.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ai-descriptor-derive 0.6.0
[INFO] tweaked toml for crates.io crate ai-descriptor-derive 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ai-descriptor-derive 0.6.0 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ai-descriptor-derive 0.6.0 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 | homepage = "https://github.com/klebs6/klebs-general"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 | repository = "https://github.com/klebs6/klebs-general"
[INFO] [stderr]    |              -----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `ai-descriptor-derive` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56
[INFO] running `Command { std: "docker" "start" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 | homepage = "https://github.com/klebs6/klebs-general"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 | repository = "https://github.com/klebs6/klebs-general"
[INFO] [stderr]    |              -----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `ai-descriptor-derive` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling serde v1.0.215
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[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling disable_macro v0.3.6
[INFO] [stderr]    Compiling derive-error v0.0.5
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking serial_test v0.5.1
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[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling getset v0.1.5
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking tracing-setup v1.0.4
[INFO] [stderr]     Checking ai-descriptor-trait v0.4.0
[INFO] [stderr]     Checking trybuild v1.0.101
[INFO] [stderr]    Compiling language-enum v0.1.0
[INFO] [stderr]    Compiling named-item v0.6.0
[INFO] [stderr]     Checking ai-descriptor-derive v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling error-tree v0.6.0
[INFO] [stdout] warning: unused variable: `fields_unnamed`
[INFO] [stdout]    --> src/item_with_features.rs:247:21
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let fields_unnamed = match &variant.fields {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields_unnamed`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_ident`
[INFO] [stdout]    --> src/item_with_features.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 variant_ident: &syn::Ident,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/item_with_features.rs:37:28
[INFO] [stdout]    |
[INFO] [stdout] 37 |                       return syn::Error::new_spanned(
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 38 | |                         input.ident.clone(),
[INFO] [stdout] 39 | |                         "Structs deriving ItemWithFeatures must have an #[ai(\"...\")] attribute for the header",
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |                     .into();
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 41 -                     .to_compile_error()
[INFO] [stdout] 42 -                     .into();
[INFO] [stdout] 41 +                     .to_compile_error();
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 37 ~                     return <proc_macro2::TokenStream as Into<_>>::into(syn::Error::new_spanned(
[INFO] [stdout] 38 |                         input.ident.clone(),
[INFO] [stdout] 39 |                         "Structs deriving ItemWithFeatures must have an #[ai(\"...\")] attribute for the header",
[INFO] [stdout] 40 |                     )
[INFO] [stdout] 41 ~                     .to_compile_error());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/item_with_features.rs:57:40
[INFO] [stdout]    |
[INFO] [stdout] 57 | ...                   return err.into();
[INFO] [stdout]    |                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 57 -                                 return err.into();
[INFO] [stdout] 57 +                                 return err;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 57 -                                 return err.into();
[INFO] [stdout] 57 +                                 return <proc_macro2::TokenStream as Into<_>>::into(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/item_with_features.rs:64:28
[INFO] [stdout]    |
[INFO] [stdout] 64 |                       return syn::Error::new_spanned(
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 65 | |                         input.ident.clone(),
[INFO] [stdout] 66 | |                         "ItemWithFeatures can only be derived for structs with named fields",
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |                     .into();
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 68 -                     .to_compile_error()
[INFO] [stdout] 69 -                     .into();
[INFO] [stdout] 68 +                     .to_compile_error();
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 64 ~                     return <proc_macro2::TokenStream as Into<_>>::into(syn::Error::new_spanned(
[INFO] [stdout] 65 |                         input.ident.clone(),
[INFO] [stdout] 66 |                         "ItemWithFeatures can only be derived for structs with named fields",
[INFO] [stdout] 67 |                     )
[INFO] [stdout] 68 ~                     .to_compile_error());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/item_with_features.rs:254:32
[INFO] [stdout]     |
[INFO] [stdout] 254 |                           return syn::Error::new_spanned(
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 255 | |                             variant_ident.clone(),
[INFO] [stdout] 256 | |                             "Enum variants deriving ItemWithFeatures must have exactly one unnamed field",
[INFO] [stdout] ...   |
[INFO] [stdout] 259 | |                         .into();
[INFO] [stdout]     | |_______________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 258 -                         .to_compile_error()
[INFO] [stdout] 259 -                         .into();
[INFO] [stdout] 258 +                         .to_compile_error();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 254 ~                         return <proc_macro2::TokenStream as Into<_>>::into(syn::Error::new_spanned(
[INFO] [stdout] 255 |                             variant_ident.clone(),
[INFO] [stdout] 256 |                             "Enum variants deriving ItemWithFeatures must have exactly one unnamed field",
[INFO] [stdout] 257 |                         )
[INFO] [stdout] 258 ~                         .to_compile_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/item_with_features.rs:266:38
[INFO] [stdout]     |
[INFO] [stdout] 266 |                     Err(e) => return e.to_compile_error().into(),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 266 -                     Err(e) => return e.to_compile_error().into(),
[INFO] [stdout] 266 +                     Err(e) => return e.to_compile_error(),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 266 -                     Err(e) => return e.to_compile_error().into(),
[INFO] [stdout] 266 +                     Err(e) => return <proc_macro2::TokenStream as Into<_>>::into(e.to_compile_error()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/item_with_features.rs:337:36
[INFO] [stdout]     |
[INFO] [stdout] 337 |   ...                   return syn::Error::new_spanned(
[INFO] [stdout]     |  ______________________________^
[INFO] [stdout] 338 | | ...                       variant_ident,
[INFO] [stdout] 339 | | ...                       err_msg
[INFO] [stdout] ...   |
[INFO] [stdout] 342 | | ...                   .into();
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 341 -                             .to_compile_error()
[INFO] [stdout] 342 -                             .into();
[INFO] [stdout] 341 +                             .to_compile_error();
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 337 ~                             return <proc_macro2::TokenStream as Into<_>>::into(syn::Error::new_spanned(
[INFO] [stdout] 338 |                                 variant_ident,
[INFO] [stdout] 339 |                                 err_msg
[INFO] [stdout] 340 |                             )
[INFO] [stdout] 341 ~                             .to_compile_error());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/item_with_features.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 | /             syn::Error::new_spanned(
[INFO] [stdout] 402 | |                 input.ident.clone(),
[INFO] [stdout] 403 | |                 "ItemWithFeatures can only be derived for structs with named fields \
[INFO] [stdout] 404 | |                  (with a #[ai(\"...\")] for the header), or for enums whose variants each \
[INFO] [stdout] ...   |
[INFO] [stdout] 407 | |             .to_compile_error()
[INFO] [stdout] 408 | |             .into()
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 407 -             .to_compile_error()
[INFO] [stdout] 408 -             .into()
[INFO] [stdout] 407 +             .to_compile_error()
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 401 ~             <proc_macro2::TokenStream as Into<_>>::into(syn::Error::new_spanned(
[INFO] [stdout] 402 |                 input.ident.clone(),
[INFO] [stdout] ...
[INFO] [stdout] 406 |             )
[INFO] [stdout] 407 ~             .to_compile_error())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/impl_item_feature.rs:9:13
[INFO] [stdout]    |
[INFO] [stdout]  9 | /             Error::new_spanned(input.ident.clone(), "ItemFeature can only be derived for enums and structs")
[INFO] [stdout] 10 | |                 .to_compile_error()
[INFO] [stdout] 11 | |                 .into()
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 10 -                 .to_compile_error()
[INFO] [stdout] 11 -                 .into()
[INFO] [stdout] 10 +                 .to_compile_error()
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout]  9 ~             <proc_macro2::TokenStream as Into<_>>::into(Error::new_spanned(input.ident.clone(), "ItemFeature can only be derived for enums and structs")
[INFO] [stdout] 10 ~                 .to_compile_error())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/impl_item_feature_struct.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |               return Error::new_spanned(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 12 | |                 input.ident.clone(),
[INFO] [stdout] 13 | |                 "Structs deriving ItemFeature must have an #[ai(\"...\")] attribute",
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |             .into();
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 15 -             .to_compile_error()
[INFO] [stdout] 16 -             .into();
[INFO] [stdout] 15 +             .to_compile_error();
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 11 ~             return <proc_macro2::TokenStream as Into<_>>::into(Error::new_spanned(
[INFO] [stdout] 12 |                 input.ident.clone(),
[INFO] [stdout] 13 |                 "Structs deriving ItemFeature must have an #[ai(\"...\")] attribute",
[INFO] [stdout] 14 |             )
[INFO] [stdout] 15 ~             .to_compile_error());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ai-descriptor-derive` (lib) due to 9 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56", kill_on_drop: false }`
[INFO] [stdout] 68222613f6992222b60128ea9b54fb58895e964ffdf2cf381857d71b078d5d56
