[INFO] fetching crate structural-convert-derive 0.3.0...
[INFO] testing structural-convert-derive-0.3.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate structural-convert-derive 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate structural-convert-derive 0.3.0
[INFO] finished tweaking crates.io crate structural-convert-derive 0.3.0
[INFO] tweaked toml for crates.io crate structural-convert-derive 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate structural-convert-derive 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.14.4 (available: v0.23.0)
[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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e35995aa3a847190c4a84f740821b7010131ec73ba6ebf857df56c5c78b8861
[INFO] running `Command { std: "docker" "start" "-a" "1e35995aa3a847190c4a84f740821b7010131ec73ba6ebf857df56c5c78b8861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e35995aa3a847190c4a84f740821b7010131ec73ba6ebf857df56c5c78b8861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e35995aa3a847190c4a84f740821b7010131ec73ba6ebf857df56c5c78b8861", kill_on_drop: false }`
[INFO] [stdout] 1e35995aa3a847190c4a84f740821b7010131ec73ba6ebf857df56c5c78b8861
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85364ff2226cb6d3374f23e1a984daa5658d882e4ed5ab5d3a16fd14ebe603e1
[INFO] running `Command { std: "docker" "start" "-a" "85364ff2226cb6d3374f23e1a984daa5658d882e4ed5ab5d3a16fd14ebe603e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling structural-convert-derive v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `default` is never read
[INFO] [stdout]   --> src/structural_convert/attributes/named_field/into_field_named_attributes.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct IntoFieldNamedAttributes {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub default: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntoFieldNamedAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "85364ff2226cb6d3374f23e1a984daa5658d882e4ed5ab5d3a16fd14ebe603e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85364ff2226cb6d3374f23e1a984daa5658d882e4ed5ab5d3a16fd14ebe603e1", kill_on_drop: false }`
[INFO] [stdout] 85364ff2226cb6d3374f23e1a984daa5658d882e4ed5ab5d3a16fd14ebe603e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e2ccfbed3817f1ec41df3bba4efa721de473daaab0ab4638c8ce2829d41f2e7
[INFO] running `Command { std: "docker" "start" "-a" "8e2ccfbed3817f1ec41df3bba4efa721de473daaab0ab4638c8ce2829d41f2e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling structural-convert-derive v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `default` is never read
[INFO] [stdout]   --> src/structural_convert/attributes/named_field/into_field_named_attributes.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct IntoFieldNamedAttributes {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub default: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntoFieldNamedAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `default` is never read
[INFO] [stdout]   --> src/structural_convert/attributes/named_field/into_field_named_attributes.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct IntoFieldNamedAttributes {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub default: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IntoFieldNamedAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "8e2ccfbed3817f1ec41df3bba4efa721de473daaab0ab4638c8ce2829d41f2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2ccfbed3817f1ec41df3bba4efa721de473daaab0ab4638c8ce2829d41f2e7", kill_on_drop: false }`
[INFO] [stdout] 8e2ccfbed3817f1ec41df3bba4efa721de473daaab0ab4638c8ce2829d41f2e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dd85594dfb012c960c91e297b7ae559a032310a04b81835a4aa81b544b84360
[INFO] running `Command { std: "docker" "start" "-a" "2dd85594dfb012c960c91e297b7ae559a032310a04b81835a4aa81b544b84360", kill_on_drop: false }`
[INFO] [stderr] warning: field `default` is never read
[INFO] [stderr]   --> src/structural_convert/attributes/named_field/into_field_named_attributes.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct IntoFieldNamedAttributes {
[INFO] [stderr]    |            ------------------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 13 |     pub default: bool,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `IntoFieldNamedAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `structural-convert-derive` (lib) generated 1 warning
[INFO] [stderr] warning: `structural-convert-derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/structural_convert_derive-dd4873ac99d55a72)
[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] [stderr]    Doc-tests structural_convert_derive
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/structural_convert/on_fields_named/create_match_branch_for_fields_named.rs - structural_convert::on_fields_named::create_match_branch_for_fields_named::FieldsNamedMatchBranchData (line 20) - compile fail ... ok
[INFO] [stdout] test src/structural_convert/on_fields_named/create_match_branch_for_fields_named.rs - structural_convert::on_fields_named::create_match_branch_for_fields_named::IntoFromPair (line 37) - compile fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dd85594dfb012c960c91e297b7ae559a032310a04b81835a4aa81b544b84360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd85594dfb012c960c91e297b7ae559a032310a04b81835a4aa81b544b84360", kill_on_drop: false }`
[INFO] [stdout] 2dd85594dfb012c960c91e297b7ae559a032310a04b81835a4aa81b544b84360
