[INFO] fetching crate struct_to_string 0.2.0...
[INFO] testing struct_to_string-0.2.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate struct_to_string 0.2.0 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate struct_to_string 0.2.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4f1d124da99684772012c983840f0f09a01d4d49f7fece4021f15b886008037
[INFO] running `Command { std: "docker" "start" "-a" "a4f1d124da99684772012c983840f0f09a01d4d49f7fece4021f15b886008037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4f1d124da99684772012c983840f0f09a01d4d49f7fece4021f15b886008037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4f1d124da99684772012c983840f0f09a01d4d49f7fece4021f15b886008037", kill_on_drop: false }`
[INFO] [stdout] a4f1d124da99684772012c983840f0f09a01d4d49f7fece4021f15b886008037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 071015aec7c21ffe5ad19562e4510c6304a1f6b5b1c9a10f16fe6c769a4350f1
[INFO] running `Command { std: "docker" "start" "-a" "071015aec7c21ffe5ad19562e4510c6304a1f6b5b1c9a10f16fe6c769a4350f1", 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "071015aec7c21ffe5ad19562e4510c6304a1f6b5b1c9a10f16fe6c769a4350f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071015aec7c21ffe5ad19562e4510c6304a1f6b5b1c9a10f16fe6c769a4350f1", kill_on_drop: false }`
[INFO] [stdout] 071015aec7c21ffe5ad19562e4510c6304a1f6b5b1c9a10f16fe6c769a4350f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90ab38688a6f526c0f616fe2739cc98168c54094711c7de0661b95f26fcff233
[INFO] running `Command { std: "docker" "start" "-a" "90ab38688a6f526c0f616fe2739cc98168c54094711c7de0661b95f26fcff233", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[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<i32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 13 |     array_field: [i32; 3],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 14 |     slice_field: Vec<i32>,
[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 3.94s
[INFO] running `Command { std: "docker" "inspect" "90ab38688a6f526c0f616fe2739cc98168c54094711c7de0661b95f26fcff233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90ab38688a6f526c0f616fe2739cc98168c54094711c7de0661b95f26fcff233", kill_on_drop: false }`
[INFO] [stdout] 90ab38688a6f526c0f616fe2739cc98168c54094711c7de0661b95f26fcff233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f388ea6bf3b01d4e62232bdd26f067dbb33a948bc2ca8120ff6a56f3cf1521d3
[INFO] running `Command { std: "docker" "start" "-a" "f388ea6bf3b01d4e62232bdd26f067dbb33a948bc2ca8120ff6a56f3cf1521d3", 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<i32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 13 |     array_field: [i32; 3],
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 14 |     slice_field: Vec<i32>,
[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 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/struct_to_string-50ba7c173a661c3f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-d5d3eb2db55f8f95)
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test to_csharp ... ok
[INFO] [stdout] test to_python ... ok
[INFO] [stdout] test to_go ... ok
[INFO] [stdout] test to_typescript ... ok
[INFO] [stdout] test to_rust ... ok
[INFO] [stdout] test to_java ... 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 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f388ea6bf3b01d4e62232bdd26f067dbb33a948bc2ca8120ff6a56f3cf1521d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f388ea6bf3b01d4e62232bdd26f067dbb33a948bc2ca8120ff6a56f3cf1521d3", kill_on_drop: false }`
[INFO] [stdout] f388ea6bf3b01d4e62232bdd26f067dbb33a948bc2ca8120ff6a56f3cf1521d3
