[INFO] cloning repository https://github.com/lokimckay/derive-fields
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lokimckay/derive-fields" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokimckay%2Fderive-fields", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokimckay%2Fderive-fields'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4bc5a327053bfd5542dd4e978340c742b0cfb18
[INFO] testing lokimckay/derive-fields against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokimckay%2Fderive-fields" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lokimckay/derive-fields
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/lokimckay/derive-fields
[INFO] tweaked toml for git repo https://github.com/lokimckay/derive-fields written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lokimckay/derive-fields on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lokimckay/derive-fields 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling convert_case v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling derive-fields v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.36s
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[INFO] [stdout] bc11d09bc2851d9a7c5c1dd94f1550efaa9f499e8d26c57ce9f7d6ae6b32d33b
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[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling toml_writer v1.0.4
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling convert_case v0.8.0
[INFO] [stderr]    Compiling serde_spanned v1.0.3
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling toml v0.9.8
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling derive-fields v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling trybuild v1.0.112
[INFO] [stdout] error[E0277]: the trait bound `ExampleStructFieldKey: IntoEnumIterator` is not satisfied
[INFO] [stdout]  --> tests/derives.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ExampleStruct {
[INFO] [stdout]   |            ^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]   |
[INFO] [stdout] help: the trait `IntoEnumIterator` is not implemented for `ExampleStructFieldKey`
[INFO] [stdout]  --> tests/derives.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout]   = note: this error originates in the derive macro `FieldKeys` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `ExampleStructFieldKey: IntoEnumIterator` is not satisfied
[INFO] [stdout]  --> tests/derives.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]   |                  ^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]   |
[INFO] [stdout] help: the trait `IntoEnumIterator` is not implemented for `ExampleStructFieldKey`
[INFO] [stdout]  --> tests/derives.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout]   = note: this error originates in the derive macro `FieldKeys` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for enum `ExampleStructFieldKey` in the current scope
[INFO] [stdout]   --> tests/derives.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout]  6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]    |                  --------- method `clone` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     let _ = key.clone();
[INFO] [stdout]    |                 ^^^^^ method not found in `ExampleStructFieldKey`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `clone`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `Clone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for enum `ExampleStructField` in the current scope
[INFO] [stdout]   --> tests/derives.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout]  6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]    |          ------ method `clone` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     let _ = field.clone();
[INFO] [stdout]    |                   ^^^^^ method not found in `ExampleStructField`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `clone`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `Clone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `derive-fields` (test "derives") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the trait bound `ExampleStructFieldKey: serde::Serialize` is not satisfied
[INFO] [stdout]     --> tests/serde.rs:17:42
[INFO] [stdout]      |
[INFO] [stdout]   17 |     let key_json = serde_json::to_string(&key).unwrap();
[INFO] [stdout]      |                    --------------------- ^^^^ unsatisfied trait bound
[INFO] [stdout]      |                    |
[INFO] [stdout]      |                    required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] help: the trait `serde_core::ser::Serialize` is not implemented for `ExampleStructFieldKey`
[INFO] [stdout]     --> tests/serde.rs:6:18
[INFO] [stdout]      |
[INFO] [stdout]    6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]      |                  ^^^^^^^^^
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Serialize)]` to your `ExampleStructFieldKey` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde_core::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 129 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.145/src/ser.rs:2247:17
[INFO] [stdout]      |
[INFO] [stdout] 2245 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2246 | where
[INFO] [stdout] 2247 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout]      = note: this error originates in the derive macro `FieldKeys` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `ExampleStructField: serde::Serialize` is not satisfied
[INFO] [stdout]     --> tests/serde.rs:18:44
[INFO] [stdout]      |
[INFO] [stdout]   18 |     let field_json = serde_json::to_string(&field).unwrap();
[INFO] [stdout]      |                      --------------------- ^^^^^^ unsatisfied trait bound
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] help: the trait `serde_core::ser::Serialize` is not implemented for `ExampleStructField`
[INFO] [stdout]     --> tests/serde.rs:6:10
[INFO] [stdout]      |
[INFO] [stdout]    6 | #[derive(Fields, FieldKeys)]
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Serialize)]` to your `ExampleStructField` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde_core::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 129 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.145/src/ser.rs:2247:17
[INFO] [stdout]      |
[INFO] [stdout] 2245 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2246 | where
[INFO] [stdout] 2247 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout]      = note: this error originates in the derive macro `Fields` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `derive-fields` (test "serde") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a97a467c696f47d68ddeb6e4f1d513af2b02d6aa2078b15b4b9267b8c90db5ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a97a467c696f47d68ddeb6e4f1d513af2b02d6aa2078b15b4b9267b8c90db5ab", kill_on_drop: false }`
[INFO] [stdout] a97a467c696f47d68ddeb6e4f1d513af2b02d6aa2078b15b4b9267b8c90db5ab
