[INFO] fetching crate optfield 0.2.0...
[INFO] testing optfield-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate optfield 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate optfield 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optfield 0.2.0
[INFO] finished tweaking crates.io crate optfield 0.2.0
[INFO] tweaked toml for crates.io crate optfield 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd0190216b492dc5e9d6395c0b001cafc2e1561bb066c84995e7f260d40e7235
[INFO] running `Command { std: "docker" "start" "-a" "cd0190216b492dc5e9d6395c0b001cafc2e1561bb066c84995e7f260d40e7235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd0190216b492dc5e9d6395c0b001cafc2e1561bb066c84995e7f260d40e7235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd0190216b492dc5e9d6395c0b001cafc2e1561bb066c84995e7f260d40e7235", kill_on_drop: false }`
[INFO] [stdout] cd0190216b492dc5e9d6395c0b001cafc2e1561bb066c84995e7f260d40e7235
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8dace040b2acb57d2b7f77004e164284f890901610d7fa98298d7d0834037e6
[INFO] running `Command { std: "docker" "start" "-a" "c8dace040b2acb57d2b7f77004e164284f890901610d7fa98298d7d0834037e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling optfield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `Command { std: "docker" "inspect" "c8dace040b2acb57d2b7f77004e164284f890901610d7fa98298d7d0834037e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8dace040b2acb57d2b7f77004e164284f890901610d7fa98298d7d0834037e6", kill_on_drop: false }`
[INFO] [stdout] c8dace040b2acb57d2b7f77004e164284f890901610d7fa98298d7d0834037e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee23808befa5b77ed2324d4a15a62c46fb90e115fbc533da21f5a8be7eed2a91
[INFO] running `Command { std: "docker" "start" "-a" "ee23808befa5b77ed2324d4a15a62c46fb90e115fbc533da21f5a8be7eed2a91", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling optfield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.09s
[INFO] running `Command { std: "docker" "inspect" "ee23808befa5b77ed2324d4a15a62c46fb90e115fbc533da21f5a8be7eed2a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee23808befa5b77ed2324d4a15a62c46fb90e115fbc533da21f5a8be7eed2a91", kill_on_drop: false }`
[INFO] [stdout] ee23808befa5b77ed2324d4a15a62c46fb90e115fbc533da21f5a8be7eed2a91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ded725ba2ff562df52efd235359b46edbf420a31d83e8cc71b4e60933175f9d
[INFO] running `Command { std: "docker" "start" "-a" "2ded725ba2ff562df52efd235359b46edbf420a31d83e8cc71b4e60933175f9d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optfield-5cd08b8439737795)
[INFO] [stdout] running 47 tests
[INFO] [stdout] test args::tests::parse_attr_list ... ok
[INFO] [stdout] test args::tests::parse_field_doc ... ok
[INFO] [stdout] test args::tests::parse_name ... ok
[INFO] [stdout] test args::tests::parse_from ... ok
[INFO] [stdout] test args::tests::parse_attrs_test ... 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::parse_doc ... ok
[INFO] [stdout] test args::tests::parse_merge_fn ... ok
[INFO] [stdout] test args::tests::parse_field_attrs ... ok
[INFO] [stdout] test args::tests::parse_no_optional_args ... ok
[INFO] [stdout] test attrs::tests::replace_attrs ... ok
[INFO] [stdout] test fields::attrs::tests::replace_attrs ... ok
[INFO] [stdout] test attrs::tests::remove_attrs ... ok
[INFO] [stdout] test fields::tests::test_is_option ... ok
[INFO] [stdout] test fields::tests::with_rewrap ... ok
[INFO] [stdout] test attrs::tests::keep_attrs ... ok
[INFO] [stdout] test generate::tests::sets_name ... ok
[INFO] [stdout] test fields::tests::test_is_not_option ... ok
[INFO] [stdout] test fields::attrs::tests::keep_attrs ... ok
[INFO] [stdout] test generate::tests::sets_visibility ... ok
[INFO] [stdout] test fields::attrs::tests::keep_docs ... ok
[INFO] [stdout] test attrs::tests::remove_docs ... ok
[INFO] [stdout] test attrs::tests::remove_other_optfield_attrs ... ok
[INFO] [stdout] test args::tests::doc_first_panics - should panic ... ok
[INFO] [stdout] test fields::tests::without_rewrap ... ok
[INFO] [stdout] test fields::attrs::tests::remove_attrs ... ok
[INFO] [stdout] test attrs::tests::keep_same_docs ... ok
[INFO] [stdout] test generate::tests::sets_generics ... ok
[INFO] [stdout] test fields::attrs::tests::add_attrs ... ok
[INFO] [stdout] test attrs::tests::replace_docs ... ok
[INFO] [stdout] test fields::attrs::tests::remove_docs ... ok
[INFO] [stdout] test args::tests::duplicate_rewrap_panics - should panic ... ok
[INFO] [stdout] test args::tests::merge_fn_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::from_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_field_doc_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_attrs_panics - should panic ... ok
[INFO] [stdout] test args::tests::empty_args_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::field_attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::field_doc_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_doc_panics - should panic ... ok
[INFO] [stdout] test args::tests::rewrap_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_from_panics - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/from.rs (/opt/rustwide/target/debug/deps/from-7f2f0026b5e9433a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test from_struct ... ok
[INFO] [stdout] test from_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/merge.rs (/opt/rustwide/target/debug/deps/merge-0980a82c7663bd48)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test merge_struct ... ok
[INFO] [stderr]      Running tests/multiple.rs (/opt/rustwide/target/debug/deps/multiple-05c25f12c6116160)
[INFO] [stdout] test merge_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests optfield
[INFO] [stdout] test multiple_optfield_same_struct ... 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 37 tests
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/lib.rs - (line 181) ... ok
[INFO] [stdout] test src/lib.rs - (line 327) ... ok
[INFO] [stdout] test src/lib.rs - (line 205) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - (line 215) ... ok
[INFO] [stdout] test src/lib.rs - (line 104) ... ok
[INFO] [stdout] test src/lib.rs - (line 295) ... ok
[INFO] [stdout] test src/lib.rs - (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] test src/lib.rs - (line 241) ... ok
[INFO] [stdout] test src/lib.rs - (line 190) ... ok
[INFO] [stdout] test src/lib.rs - (line 115) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 137) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 362) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 314) ... ok
[INFO] [stdout] test src/lib.rs - (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 375) ... ok
[INFO] [stdout] test src/lib.rs - (line 225) ... ok
[INFO] [stdout] test src/lib.rs - (line 231) ... ok
[INFO] [stdout] test src/lib.rs - (line 267) ... ok
[INFO] [stdout] test src/lib.rs - (line 346) ... ok
[INFO] [stdout] test src/lib.rs - (line 123) ... ok
[INFO] [stdout] test src/lib.rs - (line 275) ... ok
[INFO] [stdout] test src/lib.rs - (line 166) ... ok
[INFO] [stdout] test src/lib.rs - (line 407) ... ok
[INFO] [stdout] test src/lib.rs - (line 256) ... ok
[INFO] [stdout] test src/lib.rs - (line 286) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] test src/lib.rs - (line 68) ... ok
[INFO] [stdout] test src/lib.rs - (line 158) ... ok
[INFO] [stdout] test src/lib.rs - (line 85) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ded725ba2ff562df52efd235359b46edbf420a31d83e8cc71b4e60933175f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ded725ba2ff562df52efd235359b46edbf420a31d83e8cc71b4e60933175f9d", kill_on_drop: false }`
[INFO] [stdout] 2ded725ba2ff562df52efd235359b46edbf420a31d83e8cc71b4e60933175f9d