[INFO] fetching crate optfield 0.4.0...
[INFO] testing optfield-0.4.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate optfield 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate optfield 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate optfield 0.4.0
[INFO] tweaked toml for crates.io crate optfield 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optfield 0.4.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b923e706bb15768e34778f7947be4fdab58e25fed116058b6797ad4dc1486fc4
[INFO] running `Command { std: "docker" "start" "-a" "b923e706bb15768e34778f7947be4fdab58e25fed116058b6797ad4dc1486fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b923e706bb15768e34778f7947be4fdab58e25fed116058b6797ad4dc1486fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b923e706bb15768e34778f7947be4fdab58e25fed116058b6797ad4dc1486fc4", kill_on_drop: false }`
[INFO] [stdout] b923e706bb15768e34778f7947be4fdab58e25fed116058b6797ad4dc1486fc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d004100b03345a62a33379f96b786fad8e70b104423654a40af44a920db0d6d3
[INFO] running `Command { std: "docker" "start" "-a" "d004100b03345a62a33379f96b786fad8e70b104423654a40af44a920db0d6d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling optfield v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.38s
[INFO] running `Command { std: "docker" "inspect" "d004100b03345a62a33379f96b786fad8e70b104423654a40af44a920db0d6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d004100b03345a62a33379f96b786fad8e70b104423654a40af44a920db0d6d3", kill_on_drop: false }`
[INFO] [stdout] d004100b03345a62a33379f96b786fad8e70b104423654a40af44a920db0d6d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4132060d58b98c8c2aa7fb4226b22871160d06f714465b1a5b06b825790b3a46
[INFO] running `Command { std: "docker" "start" "-a" "4132060d58b98c8c2aa7fb4226b22871160d06f714465b1a5b06b825790b3a46", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling optfield v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.15s
[INFO] running `Command { std: "docker" "inspect" "4132060d58b98c8c2aa7fb4226b22871160d06f714465b1a5b06b825790b3a46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4132060d58b98c8c2aa7fb4226b22871160d06f714465b1a5b06b825790b3a46", kill_on_drop: false }`
[INFO] [stdout] 4132060d58b98c8c2aa7fb4226b22871160d06f714465b1a5b06b825790b3a46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8850e28a187690a0103086b53ed531aba8991bb3c3dabc407cd3f01d65c95fe5
[INFO] running `Command { std: "docker" "start" "-a" "8850e28a187690a0103086b53ed531aba8991bb3c3dabc407cd3f01d65c95fe5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optfield-06bee807b4d61767)
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test args::tests::attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::doc_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_attrs_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_doc_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_field_attrs_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_merge_fn_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_from_panics - should panic ... ok
[INFO] [stdout] test args::tests::field_doc_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_rewrap_panics - should panic ... ok
[INFO] [stdout] test args::tests::parse_doc ... ok
[INFO] [stdout] test args::tests::parse_attr_list ... ok
[INFO] [stdout] test args::tests::empty_args_panics - should panic ... ok
[INFO] [stdout] test args::tests::parse_attrs_test ... ok
[INFO] [stdout] test args::tests::parse_field_attrs ... ok
[INFO] [stdout] test args::tests::field_attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::parse_field_doc ... ok
[INFO] [stdout] test args::tests::parse_from ... ok
[INFO] [stdout] test args::tests::duplicate_field_doc_panics - should panic ... ok
[INFO] [stdout] test args::tests::merge_fn_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::parse_merge_fn ... ok
[INFO] [stdout] test args::tests::parse_name ... ok
[INFO] [stdout] test args::tests::parse_no_optional_args ... ok
[INFO] [stdout] test args::tests::parse_rewrap ... ok
[INFO] [stdout] test args::tests::parse_visibility ... ok
[INFO] [stdout] test attrs::tests::add_attrs ... ok
[INFO] [stdout] test args::tests::from_first_panics - should panic ... ok
[INFO] [stdout] test attrs::tests::keep_attrs ... ok
[INFO] [stdout] test args::tests::rewrap_first_panics - should panic ... ok
[INFO] [stdout] test attrs::tests::remove_attrs ... ok
[INFO] [stdout] test attrs::tests::remove_docs ... ok
[INFO] [stdout] test attrs::tests::remove_other_optfield_attrs ... ok
[INFO] [stdout] test attrs::tests::replace_attrs ... ok
[INFO] [stdout] test attrs::tests::keep_same_docs ... ok
[INFO] [stdout] test fields::attrs::tests::add_attrs ... ok
[INFO] [stdout] test fields::attrs::tests::keep_attrs ... ok
[INFO] [stdout] test fields::attrs::tests::keep_docs ... ok
[INFO] [stdout] test fields::attrs::tests::remove_attrs ... ok
[INFO] [stdout] test attrs::tests::replace_docs ... ok
[INFO] [stdout] test fields::tests::test_is_option ... ok
[INFO] [stdout] test fields::attrs::tests::remove_docs ... ok
[INFO] [stdout] test fields::tests::with_rewrap ... ok
[INFO] [stdout] test generate::tests::sets_generics ... ok
[INFO] [stdout] test fields::tests::test_is_not_option ... ok
[INFO] [stdout] test fields::tests::without_rewrap ... ok
[INFO] [stdout] test generate::tests::sets_visibility ... ok
[INFO] [stdout] test generate::tests::sets_name ... ok
[INFO] [stdout] test fields::attrs::tests::replace_attrs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/from.rs (/opt/rustwide/target/debug/deps/from-563bc5eb27e83d0e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test from_cfg_field ... ok
[INFO] [stdout] test from_struct ... ok
[INFO] [stdout] test from_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/merge.rs (/opt/rustwide/target/debug/deps/merge-a74e4d951fdd2906)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test merge_cfg_field ... ok
[INFO] [stdout] test merge_tuple_struct ... ok
[INFO] [stdout] test merge_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/multiple.rs (/opt/rustwide/target/debug/deps/multiple-c17989ff1fdd385a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test multiple_optfield_same_struct ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optfield
[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 39 tests
[INFO] [stdout] test src/lib.rs - (line 134) ... ok
[INFO] [stdout] test src/lib.rs - (line 126) ... ok
[INFO] [stdout] test src/lib.rs - (line 159) ... ok
[INFO] [stdout] test src/lib.rs - (line 105) ... ok
[INFO] [stdout] test src/lib.rs - (line 177) ... ok
[INFO] [stdout] test src/lib.rs - (line 115) ... ok
[INFO] [stdout] test src/lib.rs - (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 169) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 216) ... ok
[INFO] [stdout] test src/lib.rs - (line 226) ... ok
[INFO] [stdout] test src/lib.rs - (line 192) ... ok
[INFO] [stdout] test src/lib.rs - (line 251) ... ok
[INFO] [stdout] test src/lib.rs - (line 234) ... ok
[INFO] [stdout] test src/lib.rs - (line 201) ... ok
[INFO] [stdout] test src/lib.rs - (line 241) ... ok
[INFO] [stdout] test src/lib.rs - (line 257) ... ok
[INFO] [stdout] test src/lib.rs - (line 312) ... ok
[INFO] [stdout] test src/lib.rs - (line 267) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 282) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 301) ... ok
[INFO] [stdout] test src/lib.rs - (line 388) ... ok
[INFO] [stdout] test src/lib.rs - (line 293) ... ok
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] test src/lib.rs - (line 353) ... ok
[INFO] [stdout] test src/lib.rs - (line 44) ... ok
[INFO] [stdout] test src/lib.rs - (line 372) ... ok
[INFO] [stdout] test src/lib.rs - (line 433) ... ok
[INFO] [stdout] test src/lib.rs - (line 61) ... ok
[INFO] [stdout] test src/lib.rs - (line 52) ... ok
[INFO] [stdout] test src/lib.rs - (line 401) ... ok
[INFO] [stdout] test src/lib.rs - (line 340) ... ok
[INFO] [stdout] test src/lib.rs - (line 321) ... ok
[INFO] [stdout] test src/lib.rs - (line 96) ... ok
[INFO] [stdout] test src/lib.rs - (line 88) ... ok
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8850e28a187690a0103086b53ed531aba8991bb3c3dabc407cd3f01d65c95fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8850e28a187690a0103086b53ed531aba8991bb3c3dabc407cd3f01d65c95fe5", kill_on_drop: false }`
[INFO] [stdout] 8850e28a187690a0103086b53ed531aba8991bb3c3dabc407cd3f01d65c95fe5