[INFO] fetching crate struct_to_string 0.2.0... [INFO] testing struct_to_string-0.2.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate struct_to_string 0.2.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate struct_to_string 0.2.0 [INFO] finished tweaking crates.io crate struct_to_string 0.2.0 [INFO] tweaked toml for crates.io crate struct_to_string 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate struct_to_string 0.2.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 66db7dddda45405968cc2dc2b6d12f9c6c0308fa3605438eaeaf4152924072f3 [INFO] running `Command { std: "docker" "start" "-a" "66db7dddda45405968cc2dc2b6d12f9c6c0308fa3605438eaeaf4152924072f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66db7dddda45405968cc2dc2b6d12f9c6c0308fa3605438eaeaf4152924072f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66db7dddda45405968cc2dc2b6d12f9c6c0308fa3605438eaeaf4152924072f3", kill_on_drop: false }` [INFO] [stdout] 66db7dddda45405968cc2dc2b6d12f9c6c0308fa3605438eaeaf4152924072f3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 531f299f5d0ee05f246c17bec47cf89c2bf067d7a7f2963073d96a664b850667 [INFO] running `Command { std: "docker" "start" "-a" "531f299f5d0ee05f246c17bec47cf89c2bf067d7a7f2963073d96a664b850667", kill_on_drop: false }` [INFO] [stderr] Compiling struct_to_string v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `Command { std: "docker" "inspect" "531f299f5d0ee05f246c17bec47cf89c2bf067d7a7f2963073d96a664b850667", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "531f299f5d0ee05f246c17bec47cf89c2bf067d7a7f2963073d96a664b850667", kill_on_drop: false }` [INFO] [stdout] 531f299f5d0ee05f246c17bec47cf89c2bf067d7a7f2963073d96a664b850667 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b7de0d167ff2924de2a2d88b397994fce3bbfa3b51948f9ffc650a3685e0adac [INFO] running `Command { std: "docker" "start" "-a" "b7de0d167ff2924de2a2d88b397994fce3bbfa3b51948f9ffc650a3685e0adac", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling struct_to_string v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> tests/integration_tests.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct ComprehensiveTestStruct { [INFO] [stdout] | ----------------------- fields in this struct [INFO] [stdout] 6 | int_field: i32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 7 | uint_field: u32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | float_field: f64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 9 | bool_field: bool, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 10 | char_field: char, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 11 | str_field: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 12 | option_field: Option, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 13 | array_field: [i32; 3], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 14 | slice_field: Vec, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 15 | tuple_field: (i32, String), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 16 | tuple_struct_field: TupleStruct, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 17 | enum_field: AnEnum, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 18 | nested_struct_field: NestedStruct, [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 `0`, `1`, and `2` are never read [INFO] [stdout] --> tests/integration_tests.rs:21:20 [INFO] [stdout] | [INFO] [stdout] 21 | struct TupleStruct(i32, f64, String); [INFO] [stdout] | ----------- ^^^ ^^^ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `nested_field` is never read [INFO] [stdout] --> tests/integration_tests.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 23 | struct NestedStruct { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 24 | nested_field: i32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Variant1`, `Variant2`, and `Variant3` are never constructed [INFO] [stdout] --> tests/integration_tests.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 27 | enum AnEnum { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 28 | Variant1, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 29 | Variant2(i32), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 30 | Variant3 { x: i32, y: i32 }, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.89s [INFO] running `Command { std: "docker" "inspect" "b7de0d167ff2924de2a2d88b397994fce3bbfa3b51948f9ffc650a3685e0adac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7de0d167ff2924de2a2d88b397994fce3bbfa3b51948f9ffc650a3685e0adac", kill_on_drop: false }` [INFO] [stdout] b7de0d167ff2924de2a2d88b397994fce3bbfa3b51948f9ffc650a3685e0adac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ac38a32c968eea18d0d303190cec198e833fe403d26d66bbe4472fa39265a6f2 [INFO] running `Command { std: "docker" "start" "-a" "ac38a32c968eea18d0d303190cec198e833fe403d26d66bbe4472fa39265a6f2", kill_on_drop: false }` [INFO] [stderr] warning: multiple fields are never read [INFO] [stderr] --> tests/integration_tests.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct ComprehensiveTestStruct { [INFO] [stderr] | ----------------------- fields in this struct [INFO] [stderr] 6 | int_field: i32, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 7 | uint_field: u32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 8 | float_field: f64, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 9 | bool_field: bool, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 10 | char_field: char, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 11 | str_field: String, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 12 | option_field: Option, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] 13 | array_field: [i32; 3], [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 14 | slice_field: Vec, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 15 | tuple_field: (i32, String), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 16 | tuple_struct_field: TupleStruct, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 17 | enum_field: AnEnum, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 18 | nested_struct_field: NestedStruct, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `0`, `1`, and `2` are never read [INFO] [stderr] --> tests/integration_tests.rs:21:20 [INFO] [stderr] | [INFO] [stderr] 21 | struct TupleStruct(i32, f64, String); [INFO] [stderr] | ----------- ^^^ ^^^ ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing these fields [INFO] [stderr] [INFO] [stderr] warning: field `nested_field` is never read [INFO] [stderr] --> tests/integration_tests.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 23 | struct NestedStruct { [INFO] [stderr] | ------------ field in this struct [INFO] [stderr] 24 | nested_field: i32, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variants `Variant1`, `Variant2`, and `Variant3` are never constructed [INFO] [stderr] --> tests/integration_tests.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 27 | enum AnEnum { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 28 | Variant1, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] 29 | Variant2(i32), [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] 30 | Variant3 { x: i32, y: i32 }, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `struct_to_string` (test "integration_tests") generated 4 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/struct_to_string-d6b665c9c9440b1f) [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] Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-0539c1fc6a3b720d) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test to_csharp ... ok [INFO] [stdout] test to_go ... ok [INFO] [stdout] test to_java ... ok [INFO] [stdout] test to_python ... ok [INFO] [stdout] test to_rust ... ok [INFO] [stdout] test to_typescript ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests struct_to_string [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - struct_to_string (line 16) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ac38a32c968eea18d0d303190cec198e833fe403d26d66bbe4472fa39265a6f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac38a32c968eea18d0d303190cec198e833fe403d26d66bbe4472fa39265a6f2", kill_on_drop: false }` [INFO] [stdout] ac38a32c968eea18d0d303190cec198e833fe403d26d66bbe4472fa39265a6f2