[INFO] fetching crate serde_syn 0.1.0...
[INFO] testing serde_syn-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate serde_syn 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_syn 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_syn 0.1.0
[INFO] finished tweaking crates.io crate serde_syn 0.1.0
[INFO] tweaked toml for crates.io crate serde_syn 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate serde_syn 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c31c6387e88c7e5916ed8a0e16dd8c4df5bf9c4fcd7d06f9be28f02f44f0397
[INFO] running `Command { std: "docker" "start" "-a" "4c31c6387e88c7e5916ed8a0e16dd8c4df5bf9c4fcd7d06f9be28f02f44f0397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c31c6387e88c7e5916ed8a0e16dd8c4df5bf9c4fcd7d06f9be28f02f44f0397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c31c6387e88c7e5916ed8a0e16dd8c4df5bf9c4fcd7d06f9be28f02f44f0397", kill_on_drop: false }`
[INFO] [stdout] 4c31c6387e88c7e5916ed8a0e16dd8c4df5bf9c4fcd7d06f9be28f02f44f0397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcd9327028077a48384092a4cedec85612bc44e4994b258fc7125a62682ee943
[INFO] running `Command { std: "docker" "start" "-a" "fcd9327028077a48384092a4cedec85612bc44e4994b258fc7125a62682ee943", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling syn v1.0.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Error::Syn(e) => e.description(),
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.25s
[INFO] running `Command { std: "docker" "inspect" "fcd9327028077a48384092a4cedec85612bc44e4994b258fc7125a62682ee943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd9327028077a48384092a4cedec85612bc44e4994b258fc7125a62682ee943", kill_on_drop: false }`
[INFO] [stdout] fcd9327028077a48384092a4cedec85612bc44e4994b258fc7125a62682ee943
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 369a8fa9fc7ae5dd97d2a1363df7387ea2bd10f27d3ee35a347ad6e9883252c3
[INFO] running `Command { std: "docker" "start" "-a" "369a8fa9fc7ae5dd97d2a1363df7387ea2bd10f27d3ee35a347ad6e9883252c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_bytes v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Error::Syn(e) => e.description(),
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/simple_structs.rs:84:37
[INFO] [stdout]    |
[INFO] [stdout] 84 |     struct Foo { field: Option<()> };
[INFO] [stdout]    |                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Error::Syn(e) => e.description(),
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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 8.83s
[INFO] running `Command { std: "docker" "inspect" "369a8fa9fc7ae5dd97d2a1363df7387ea2bd10f27d3ee35a347ad6e9883252c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369a8fa9fc7ae5dd97d2a1363df7387ea2bd10f27d3ee35a347ad6e9883252c3", kill_on_drop: false }`
[INFO] [stdout] 369a8fa9fc7ae5dd97d2a1363df7387ea2bd10f27d3ee35a347ad6e9883252c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e90f73de4d09170521dc3c72f4bed4669f61266b2391e658982da66d243f185
[INFO] running `Command { std: "docker" "start" "-a" "2e90f73de4d09170521dc3c72f4bed4669f61266b2391e658982da66d243f185", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:74:32
[INFO] [stderr]    |
[INFO] [stderr] 74 |             Error::Syn(e) => e.description(),
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/simple_structs.rs:84:37
[INFO] [stderr]    |
[INFO] [stderr] 84 |     struct Foo { field: Option<()> };
[INFO] [stderr]    |                                     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:74:32
[INFO] [stderr]    |
[INFO] [stderr] 74 |             Error::Syn(e) => e.description(),
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_syn-28d3b41638cdba53)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/maps.rs (/opt/rustwide/target/debug/deps/maps-059bfe3b4daa434d)
[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] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test named_enum ... ok
[INFO] [stdout] test jsonlike ... ok
[INFO] [stdout] test structlike ... ok
[INFO] [stdout] test tuple_list ... ok
[INFO] [stdout] test unnamed_enum ... ok
[INFO] [stdout] test attriblike ... ok
[INFO] [stdout] test ident_errors ... ok
[INFO] [stdout] test identifiers ... ok
[INFO] [stderr]      Running tests/primatives.rs (/opt/rustwide/target/debug/deps/primatives-6d74a79f4711339b)
[INFO] [stdout] test matchlike ... ok
[INFO] [stderr]      Running tests/seq.rs (/opt/rustwide/target/debug/deps/seq-e818dc126f4c27dc)
[INFO] [stdout] test utils::assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test neg_overflow_error ... ok
[INFO] [stdout] test float ... ok
[INFO] [stdout] test mismatched_tag_error ... ok
[INFO] [stdout] test suffixed_int ... ok
[INFO] [stdout] test overflow_error ... ok
[INFO] [stdout] test uint ... ok
[INFO] [stdout] test char ... ok
[INFO] [stdout] test int ... ok
[INFO] [stdout] test suffixed_float ... ok
[INFO] [stdout] test neg_float ... ok
[INFO] [stdout] test suffixed_uint ... ok
[INFO] [stdout] test neg_to_uint_error ... ok
[INFO] [stdout] test bool ... ok
[INFO] [stdout] test utils::assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test empty_array ... ok
[INFO] [stdout] test tuple ... ok
[INFO] [stdout] test tuple_struct_errors ... ok
[INFO] [stdout] test trailing_comma ... ok
[INFO] [stdout] test string_array ... ok
[INFO] [stdout] test tuple_struct ... ok
[INFO] [stdout] test tuple_enum ... ok
[INFO] [stdout] test utils::assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/simple_structs.rs (/opt/rustwide/target/debug/deps/simple_structs-3e313f4556f5bdbd)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test newtype_struct ... ok
[INFO] [stdout] test newtype_enum ... ok
[INFO] [stdout] test some_extra_tokens_error ... ok
[INFO] [stdout] test unit ... ok
[INFO] [stdout] test nested_option ... ok
[INFO] [stdout] test unit_nonempty_error ... ok
[INFO] [stdout] test unit_struct ... ok
[INFO] [stdout] test prefixed_option ... ok
[INFO] [stdout] test unit_enum ... ok
[INFO] [stdout] test option_none ... ok
[INFO] [stdout] test newtype_struct_errors ... ok
[INFO] [stdout] test bare_some_error ... ok
[INFO] [stdout] test option_some ... ok
[INFO] [stdout] test unit_nontuple_error ... ok
[INFO] [stdout] test none_extra_tokens_error ... ok
[INFO] [stdout] test option_name_error ... ok
[INFO] [stdout] test unit_struct_errors ... ok
[INFO] [stdout] test option_unit ... ok
[INFO] [stdout] test utils::assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/strings.rs (/opt/rustwide/target/debug/deps/strings-47362249794b381d)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test array_type_errors ... ok
[INFO] [stdout] test empty_string ... ok
[INFO] [stdout] test unicode_string ... ok
[INFO] [stdout] test byte_string ... ok
[INFO] [stderr]      Running tests/utils.rs (/opt/rustwide/target/debug/deps/utils-6c61e5450efc31c9)
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... ok
[INFO] [stdout] test utils::assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests serde_syn
[INFO] [stdout] test assert_nparse_can_fail - should panic ... ok
[INFO] [stdout] test assert_parse_can_fail - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - from_stream (line 151) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/error.rs - error::Error::to_syn (line 33) ... ok
[INFO] [stdout] test src/lib.rs - parser (line 120) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e90f73de4d09170521dc3c72f4bed4669f61266b2391e658982da66d243f185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e90f73de4d09170521dc3c72f4bed4669f61266b2391e658982da66d243f185", kill_on_drop: false }`
[INFO] [stdout] 2e90f73de4d09170521dc3c72f4bed4669f61266b2391e658982da66d243f185