[INFO] fetching crate rudano 0.1.1...
[INFO] testing rudano-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rudano 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rudano 0.1.1
[INFO] finished tweaking crates.io crate rudano 0.1.1
[INFO] tweaked toml for crates.io crate rudano 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rudano 0.1.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding itoa v0.4.8 (available: v1.0.15)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74c92f7a04eac28906b2b72e9c61b4701dcdafb0fb40a293c25a03acabbf10ca
[INFO] running `Command { std: "docker" "start" "-a" "74c92f7a04eac28906b2b72e9c61b4701dcdafb0fb40a293c25a03acabbf10ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74c92f7a04eac28906b2b72e9c61b4701dcdafb0fb40a293c25a03acabbf10ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c92f7a04eac28906b2b72e9c61b4701dcdafb0fb40a293c25a03acabbf10ca", kill_on_drop: false }`
[INFO] [stdout] 74c92f7a04eac28906b2b72e9c61b4701dcdafb0fb40a293c25a03acabbf10ca
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45441fd8d326add6639911d8d7a8eb9ae704f830211ea8019546d131ba9f259e
[INFO] running `Command { std: "docker" "start" "-a" "45441fd8d326add6639911d8d7a8eb9ae704f830211ea8019546d131ba9f259e", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rudano v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "45441fd8d326add6639911d8d7a8eb9ae704f830211ea8019546d131ba9f259e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45441fd8d326add6639911d8d7a8eb9ae704f830211ea8019546d131ba9f259e", kill_on_drop: false }`
[INFO] [stdout] 45441fd8d326add6639911d8d7a8eb9ae704f830211ea8019546d131ba9f259e
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 271289115b16924cfcdfbbaf1046b008cd528d7af42b10cbccfeee751872ca5d
[INFO] running `Command { std: "docker" "start" "-a" "271289115b16924cfcdfbbaf1046b008cd528d7af42b10cbccfeee751872ca5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rudano v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]     --> src/de.rs:2037:16
[INFO] [stdout]      |
[INFO] [stdout] 2037 |         struct Unit;
[INFO] [stdout]      |                ^^^^
[INFO] [stdout]      |
[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 5.27s
[INFO] running `Command { std: "docker" "inspect" "271289115b16924cfcdfbbaf1046b008cd528d7af42b10cbccfeee751872ca5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271289115b16924cfcdfbbaf1046b008cd528d7af42b10cbccfeee751872ca5d", kill_on_drop: false }`
[INFO] [stdout] 271289115b16924cfcdfbbaf1046b008cd528d7af42b10cbccfeee751872ca5d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 464f42becc9e7c1fc55f1b796881f8723f1b95a83825951d4b78841965672390
[INFO] running `Command { std: "docker" "start" "-a" "464f42becc9e7c1fc55f1b796881f8723f1b95a83825951d4b78841965672390", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Unit` is never constructed
[INFO] [stderr]     --> src/de.rs:2037:16
[INFO] [stderr]      |
[INFO] [stderr] 2037 |         struct Unit;
[INFO] [stderr]      |                ^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rudano` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rudano-479ca85559f3519e)
[INFO] [stdout] 
[INFO] [stdout] running 60 tests
[INFO] [stdout] test de::tests::boolean ... ok
[INFO] [stdout] test de::tests::borrowed_str ... ok
[INFO] [stdout] test de::tests::deserialize_any_2 ... ok
[INFO] [stdout] test de::tests::enum_variants_in_struct ... ok
[INFO] [stdout] test de::tests::byte_array ... ok
[INFO] [stdout] test de::tests::float32 ... ok
[INFO] [stdout] test de::tests::int128 ... ok
[INFO] [stdout] test de::tests::int32 ... ok
[INFO] [stdout] test de::tests::int16 ... ok
[INFO] [stdout] test de::tests::option ... ok
[INFO] [stdout] test de::tests::newtype_struct ... ok
[INFO] [stdout] test de::tests::int64 ... ok
[INFO] [stdout] test de::tests::string ... ok
[INFO] [stdout] test de::tests::int8 ... ok
[INFO] [stdout] test de::tests::struct_with_unused_fields ... ok
[INFO] [stdout] test de::tests::comment ... ok
[INFO] [stdout] test de::tests::tuple ... ok
[INFO] [stdout] test de::tests::map ... ok
[INFO] [stdout] test de::tests::deserialize_any ... ok
[INFO] [stdout] test de::tests::tuple_struct ... ok
[INFO] [stdout] test de::tests::u16_out_of_range ... ok
[INFO] [stdout] test de::tests::uint32 ... ok
[INFO] [stdout] test de::tests::uint128 ... ok
[INFO] [stdout] test de::tests::uint64 ... ok
[INFO] [stdout] test de::tests::uint8 ... ok
[INFO] [stdout] test de::tests::uint8_invalid ... ok
[INFO] [stdout] test de::tests::unit ... ok
[INFO] [stdout] test de::tests::refuse_str_as_identifier ... ok
[INFO] [stdout] test de::tests::seq ... ok
[INFO] [stdout] test de::tests::refuse_curly_for_maps ... ok
[INFO] [stdout] test de::tests::unit_struct ... ok
[INFO] [stdout] test ser::tests::boolean ... ok
[INFO] [stdout] test ser::tests::character ... ok
[INFO] [stdout] test ser::tests::byte_array ... ok
[INFO] [stdout] test ser::tests::enum_variants_in_struct ... ok
[INFO] [stdout] test ser::tests::float64 ... ok
[INFO] [stdout] test de::tests::optional_struct_identifier_fail ... ok
[INFO] [stdout] test ser::tests::float32 ... ok
[INFO] [stdout] test ser::tests::int16 ... ok
[INFO] [stdout] test ser::tests::map ... ok
[INFO] [stdout] test ser::tests::newtype_struct ... ok
[INFO] [stdout] test ser::tests::int128 ... ok
[INFO] [stdout] test ser::tests::int32 ... ok
[INFO] [stdout] test ser::tests::uint16 ... ok
[INFO] [stdout] test ser::tests::int64 ... ok
[INFO] [stdout] test ser::tests::uint8 ... ok
[INFO] [stdout] test ser::tests::string ... ok
[INFO] [stdout] test ser::tests::unit ... ok
[INFO] [stdout] test ser::tests::uint32 ... ok
[INFO] [stdout] test ser::tests::tuple ... ok
[INFO] [stdout] test ser::tests::option ... ok
[INFO] [stdout] test ser::tests::unit_struct ... ok
[INFO] [stdout] test ser::tests::int8 ... ok
[INFO] [stdout] test ser::tests::seq ... ok
[INFO] [stdout] test ser::tests::uint128 ... ok
[INFO] [stdout] test ser::tests::tuple_struct ... ok
[INFO] [stdout] test de::tests::float64 ... ok
[INFO] [stdout] test de::tests::uint16 ... ok
[INFO] [stdout] test ser::tests::uint64 ... ok
[INFO] [stderr]    Doc-tests rudano
[INFO] [stdout] test de::tests::character ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 60 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/array_seq.rs - array_seq::serialize_array (line 7) ... ok
[INFO] [stdout] test src/ser.rs - ser::to_string_compact (line 17) ... ok
[INFO] [stdout] test src/ser.rs - ser::to_string_pretty (line 53) ... ok
[INFO] [stdout] test src/de.rs - de::from_str (line 59) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "464f42becc9e7c1fc55f1b796881f8723f1b95a83825951d4b78841965672390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464f42becc9e7c1fc55f1b796881f8723f1b95a83825951d4b78841965672390", kill_on_drop: false }`
[INFO] [stdout] 464f42becc9e7c1fc55f1b796881f8723f1b95a83825951d4b78841965672390