[INFO] fetching crate serde_struct_wrapper 0.3.2...
[INFO] testing serde_struct_wrapper-0.3.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate serde_struct_wrapper 0.3.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate serde_struct_wrapper 0.3.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_struct_wrapper 0.3.2
[INFO] finished tweaking crates.io crate serde_struct_wrapper 0.3.2
[INFO] tweaked toml for crates.io crate serde_struct_wrapper 0.3.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef6d69c227992f56c95635d193a437c47bd6269c95924fc79cc0c13b7cb090f7
[INFO] running `Command { std: "docker" "start" "-a" "ef6d69c227992f56c95635d193a437c47bd6269c95924fc79cc0c13b7cb090f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef6d69c227992f56c95635d193a437c47bd6269c95924fc79cc0c13b7cb090f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6d69c227992f56c95635d193a437c47bd6269c95924fc79cc0c13b7cb090f7", kill_on_drop: false }`
[INFO] [stdout] ef6d69c227992f56c95635d193a437c47bd6269c95924fc79cc0c13b7cb090f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a962c54ad73a0282fa6b21369dfcd1bb2ab25386cd29e6c55379458f760c6bb
[INFO] running `Command { std: "docker" "start" "-a" "6a962c54ad73a0282fa6b21369dfcd1bb2ab25386cd29e6c55379458f760c6bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling serde_test v1.0.130
[INFO] [stderr]    Compiling serde_struct_wrapper v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[INFO] running `Command { std: "docker" "inspect" "6a962c54ad73a0282fa6b21369dfcd1bb2ab25386cd29e6c55379458f760c6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a962c54ad73a0282fa6b21369dfcd1bb2ab25386cd29e6c55379458f760c6bb", kill_on_drop: false }`
[INFO] [stdout] 6a962c54ad73a0282fa6b21369dfcd1bb2ab25386cd29e6c55379458f760c6bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77f93b25d4b3c2d3985201e759528106c5544a72ad607e3cc2af88dac1ac535b
[INFO] running `Command { std: "docker" "start" "-a" "77f93b25d4b3c2d3985201e759528106c5544a72ad607e3cc2af88dac1ac535b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_struct_wrapper v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/test_ser.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | serialize_with_root!("point": Point);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `serialize_with_root` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/test_ser_de.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | serde_with_root!("point": Point);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `serialize_with_root` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "77f93b25d4b3c2d3985201e759528106c5544a72ad607e3cc2af88dac1ac535b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77f93b25d4b3c2d3985201e759528106c5544a72ad607e3cc2af88dac1ac535b", kill_on_drop: false }`
[INFO] [stdout] 77f93b25d4b3c2d3985201e759528106c5544a72ad607e3cc2af88dac1ac535b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7a02b472e7bf62fd1131022af9ed1c357d2fcbab9f33384c5d12ecef30b8c4d
[INFO] running `Command { std: "docker" "start" "-a" "a7a02b472e7bf62fd1131022af9ed1c357d2fcbab9f33384c5d12ecef30b8c4d", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/test_ser_de.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | serde_with_root!("point": Point);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `serialize_with_root` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/test_ser.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | serialize_with_root!("point": Point);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `serialize_with_root` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_struct_wrapper` (test "test_ser_de") generated 1 warning
[INFO] [stderr] warning: `serde_struct_wrapper` (test "test_ser") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_struct_wrapper-6b68fc9b35052a1b)
[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/test_de.rs (/opt/rustwide/target/debug/deps/test_de-b378a818f223f698)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test deserializer_throws_error_on_duplicate_root ... ok
[INFO] [stdout] test deserializes_struct_with_root ... ok
[INFO] [stdout] test deserializer_throws_error_on_missing_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_ser.rs (/opt/rustwide/target/debug/deps/test_ser-ad9067fd17752097)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_ser_de.rs (/opt/rustwide/target/debug/deps/test_ser_de-af0cced18d4794d1)
[INFO] [stdout] running 1 test
[INFO] [stdout] test serializes_struct_with_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests serde_struct_wrapper
[INFO] [stdout] test serializes_and_deserializes_struct_with_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - deserialize_with_root (line 69) ... ok
[INFO] [stdout] test src/lib.rs - serialize_with_root (line 176) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7a02b472e7bf62fd1131022af9ed1c357d2fcbab9f33384c5d12ecef30b8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7a02b472e7bf62fd1131022af9ed1c357d2fcbab9f33384c5d12ecef30b8c4d", kill_on_drop: false }`
[INFO] [stdout] a7a02b472e7bf62fd1131022af9ed1c357d2fcbab9f33384c5d12ecef30b8c4d