[INFO] fetching crate serde_syn 0.1.0...
[INFO] testing serde_syn-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate serde_syn 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate serde_syn 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-11/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9cc5bd48f5ac34a142a60759627973fec70726f1c3f8016d4c147b298818ab5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f9cc5bd48f5ac34a142a60759627973fec70726f1c3f8016d4c147b298818ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9cc5bd48f5ac34a142a60759627973fec70726f1c3f8016d4c147b298818ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9cc5bd48f5ac34a142a60759627973fec70726f1c3f8016d4c147b298818ab5", kill_on_drop: false }`
[INFO] [stdout] f9cc5bd48f5ac34a142a60759627973fec70726f1c3f8016d4c147b298818ab5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c52b0f7c4d0f2fb8829979b378743df781701d3542fc8fa974a67c17d08092e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c52b0f7c4d0f2fb8829979b378743df781701d3542fc8fa974a67c17d08092e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.4
[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 10.09s
[INFO] running `Command { std: "docker" "inspect" "1c52b0f7c4d0f2fb8829979b378743df781701d3542fc8fa974a67c17d08092e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c52b0f7c4d0f2fb8829979b378743df781701d3542fc8fa974a67c17d08092e", kill_on_drop: false }`
[INFO] [stdout] 1c52b0f7c4d0f2fb8829979b378743df781701d3542fc8fa974a67c17d08092e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7954e6f861d591fde473e17fe9329f12f1cd485995c8f33e39714cc0944693af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7954e6f861d591fde473e17fe9329f12f1cd485995c8f33e39714cc0944693af", 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 19.68s
[INFO] running `Command { std: "docker" "inspect" "7954e6f861d591fde473e17fe9329f12f1cd485995c8f33e39714cc0944693af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7954e6f861d591fde473e17fe9329f12f1cd485995c8f33e39714cc0944693af", kill_on_drop: false }`
[INFO] [stdout] 7954e6f861d591fde473e17fe9329f12f1cd485995c8f33e39714cc0944693af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b5470c4c2a59e000fcdfbd6d0615ba37e196a9d57e191dda3f9c24ada87feff
[INFO] running `Command { std: "docker" "start" "-a" "7b5470c4c2a59e000fcdfbd6d0615ba37e196a9d57e191dda3f9c24ada87feff", 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: `serde_syn` (lib) generated 1 warning
[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: `serde_syn` (test "simple_structs") generated 1 warning
[INFO] [stderr] warning: `serde_syn` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_syn-28d3b41638cdba53)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/maps.rs (/opt/rustwide/target/debug/deps/maps-059bfe3b4daa434d)
[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 attriblike ... ok
[INFO] [stdout] test ident_errors ... ok
[INFO] [stdout] test identifiers ... ok
[INFO] [stdout] test jsonlike ... ok
[INFO] [stdout] test tuple_list ... ok
[INFO] [stdout] test unnamed_enum ... ok
[INFO] [stdout] test structlike ... ok
[INFO] [stdout] test named_enum ... ok
[INFO] [stdout] test matchlike ... ok
[INFO] [stderr]      Running tests/primatives.rs (/opt/rustwide/target/debug/deps/primatives-6d74a79f4711339b)
[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. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test bool ... ok
[INFO] [stdout] test int ... ok
[INFO] [stdout] test overflow_error ... ok
[INFO] [stdout] test suffixed_float ... ok
[INFO] [stdout] test suffixed_int ... ok
[INFO] [stdout] test float ... ok
[INFO] [stdout] test suffixed_uint ... ok
[INFO] [stdout] test uint ... ok
[INFO] [stdout] test mismatched_tag_error ... ok
[INFO] [stdout] test neg_overflow_error ... ok
[INFO] [stdout] test char ... ok
[INFO] [stdout] test neg_to_uint_error ... ok
[INFO] [stdout] test neg_float ... ok
[INFO] [stdout] test utils::assert_parse_can_fail - should panic ... 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] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test trailing_comma ... ok
[INFO] [stdout] test empty_array ... ok
[INFO] [stdout] test string_array ... ok
[INFO] [stdout] test tuple ... ok
[INFO] [stdout] test tuple_struct_errors ... ok
[INFO] [stdout] test tuple_enum ... ok
[INFO] [stdout] test tuple_struct ... ok
[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. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stderr]      Running tests/simple_structs.rs (/opt/rustwide/target/debug/deps/simple_structs-3e313f4556f5bdbd)
[INFO] [stdout] test nested_option ... ok
[INFO] [stdout] test newtype_struct ... ok
[INFO] [stdout] test bare_some_error ... ok
[INFO] [stdout] test unit_nonempty_error ... ok
[INFO] [stdout] test newtype_struct_errors ... ok
[INFO] [stdout] test newtype_enum ... ok
[INFO] [stdout] test none_extra_tokens_error ... ok
[INFO] [stdout] test unit ... ok
[INFO] [stdout] test unit_enum ... ok
[INFO] [stdout] test some_extra_tokens_error ... ok
[INFO] [stdout] test unit_struct_errors ... ok
[INFO] [stdout] test unit_struct ... ok
[INFO] [stdout] test option_name_error ... ok
[INFO] [stdout] test prefixed_option ... ok
[INFO] [stdout] test option_some ... ok
[INFO] [stdout] test option_unit ... ok
[INFO] [stdout] test option_none ... ok
[INFO] [stdout] test unit_nontuple_error ... ok
[INFO] [stderr]      Running tests/strings.rs (/opt/rustwide/target/debug/deps/strings-47362249794b381d)
[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 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test empty_string ... ok
[INFO] [stdout] test byte_string ... ok
[INFO] [stdout] test unicode_string ... ok
[INFO] [stdout] test array_type_errors ... ok
[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 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/utils.rs (/opt/rustwide/target/debug/deps/utils-6c61e5450efc31c9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test assert_parse_can_fail - should panic ... ok
[INFO] [stdout] test assert_nparse_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 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_syn
[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 2.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b5470c4c2a59e000fcdfbd6d0615ba37e196a9d57e191dda3f9c24ada87feff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5470c4c2a59e000fcdfbd6d0615ba37e196a9d57e191dda3f9c24ada87feff", kill_on_drop: false }`
[INFO] [stdout] 7b5470c4c2a59e000fcdfbd6d0615ba37e196a9d57e191dda3f9c24ada87feff