[INFO] fetching crate optfield 0.2.0...
[INFO] testing optfield-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate optfield 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate optfield 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 981b5925f840defbbedd7087ddfae14a9746b728f9da2606bf124f9078866d63
[INFO] running `Command { std: "docker" "start" "-a" "981b5925f840defbbedd7087ddfae14a9746b728f9da2606bf124f9078866d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "981b5925f840defbbedd7087ddfae14a9746b728f9da2606bf124f9078866d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981b5925f840defbbedd7087ddfae14a9746b728f9da2606bf124f9078866d63", kill_on_drop: false }`
[INFO] [stdout] 981b5925f840defbbedd7087ddfae14a9746b728f9da2606bf124f9078866d63
[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=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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65f3efcf5f6cb9c350ae679f56e206f51012b0b0f6c2390ea18337fda6fc5d6
[INFO] running `Command { std: "docker" "start" "-a" "b65f3efcf5f6cb9c350ae679f56e206f51012b0b0f6c2390ea18337fda6fc5d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling optfield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "b65f3efcf5f6cb9c350ae679f56e206f51012b0b0f6c2390ea18337fda6fc5d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65f3efcf5f6cb9c350ae679f56e206f51012b0b0f6c2390ea18337fda6fc5d6", kill_on_drop: false }`
[INFO] [stdout] b65f3efcf5f6cb9c350ae679f56e206f51012b0b0f6c2390ea18337fda6fc5d6
[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=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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 177f7d1b2272a3e36e0d697c862eec41476f0fdac0906665be279cbe0a56cc9e
[INFO] running `Command { std: "docker" "start" "-a" "177f7d1b2272a3e36e0d697c862eec41476f0fdac0906665be279cbe0a56cc9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling optfield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.19s
[INFO] running `Command { std: "docker" "inspect" "177f7d1b2272a3e36e0d697c862eec41476f0fdac0906665be279cbe0a56cc9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177f7d1b2272a3e36e0d697c862eec41476f0fdac0906665be279cbe0a56cc9e", kill_on_drop: false }`
[INFO] [stdout] 177f7d1b2272a3e36e0d697c862eec41476f0fdac0906665be279cbe0a56cc9e
[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=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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dc1afbf61aff8867045f4f3a413b53e4d7fce60689e5d33e6646f4fb7f721f5
[INFO] running `Command { std: "docker" "start" "-a" "2dc1afbf61aff8867045f4f3a413b53e4d7fce60689e5d33e6646f4fb7f721f5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] running 47 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stdout] test attrs::tests::remove_attrs ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optfield-9a249248016e25ef)
[INFO] [stdout] test attrs::tests::keep_same_docs ... ok
[INFO] [stdout] test attrs::tests::replace_attrs ... ok
[INFO] [stdout] test args::tests::parse_attr_list ... ok
[INFO] [stdout] test args::tests::parse_name ... ok
[INFO] [stdout] test fields::attrs::tests::keep_attrs ... ok
[INFO] [stdout] test args::tests::parse_attrs_test ... ok
[INFO] [stdout] test args::tests::parse_doc ... ok
[INFO] [stdout] test args::tests::parse_field_attrs ... ok
[INFO] [stdout] test args::tests::parse_field_doc ... ok
[INFO] [stdout] test args::tests::parse_from ... 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::remove_docs ... ok
[INFO] [stdout] test attrs::tests::remove_other_optfield_attrs ... ok
[INFO] [stdout] test fields::tests::test_is_not_option ... ok
[INFO] [stdout] test fields::tests::with_rewrap ... ok
[INFO] [stdout] test fields::attrs::tests::add_attrs ... ok
[INFO] [stdout] test fields::tests::without_rewrap ... ok
[INFO] [stdout] test generate::tests::sets_visibility ... ok
[INFO] [stdout] test args::tests::parse_merge_fn ... ok
[INFO] [stdout] test attrs::tests::replace_docs ... ok
[INFO] [stdout] test fields::attrs::tests::replace_attrs ... ok
[INFO] [stdout] test generate::tests::sets_name ... ok
[INFO] [stdout] test fields::attrs::tests::keep_docs ... ok
[INFO] [stdout] test fields::attrs::tests::remove_docs ... ok
[INFO] [stdout] test attrs::tests::add_attrs ... ok
[INFO] [stdout] test attrs::tests::keep_attrs ... ok
[INFO] [stdout] test fields::attrs::tests::remove_attrs ... ok
[INFO] [stdout] test fields::tests::test_is_option ... ok
[INFO] [stdout] test generate::tests::sets_generics ... ok
[INFO] [stdout] test args::tests::empty_args_panics - should panic ... ok
[INFO] [stdout] test args::tests::attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::from_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::field_attrs_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::doc_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::field_doc_first_panics - should panic ... ok
[INFO] [stdout] test args::tests::rewrap_first_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::duplicate_field_attrs_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_doc_panics - should panic ... ok
[INFO] [stdout] test args::tests::duplicate_attrs_panics - should panic ... 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::duplicate_field_doc_panics - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/from.rs (/opt/rustwide/target/debug/deps/from-2591aed0a1c19858)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/merge.rs (/opt/rustwide/target/debug/deps/merge-627c742903f29024)
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test merge_struct ... ok
[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] [stderr]      Running tests/multiple.rs (/opt/rustwide/target/debug/deps/multiple-62f3508053fbb031)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optfield
[INFO] [stdout] running 1 test
[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 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 225) ... ok
[INFO] [stdout] test src/lib.rs - (line 181) ... 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 190) ... ok
[INFO] [stdout] test src/lib.rs - (line 137) ... ok
[INFO] [stdout] test src/lib.rs - (line 241) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - (line 231) ... ok
[INFO] [stdout] test src/lib.rs - (line 205) ... ok
[INFO] [stdout] test src/lib.rs - (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 346) ... 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 166) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 327) ... ok
[INFO] [stdout] test src/lib.rs - (line 123) ... ok
[INFO] [stdout] test src/lib.rs - (line 362) ... ok
[INFO] [stdout] test src/lib.rs - (line 267) ... ok
[INFO] [stdout] test src/lib.rs - (line 314) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] test src/lib.rs - (line 158) ... ok
[INFO] [stdout] test src/lib.rs - (line 215) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 275) ... ok
[INFO] [stdout] test src/lib.rs - (line 375) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/lib.rs - (line 115) ... 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 94) ... 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 1.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dc1afbf61aff8867045f4f3a413b53e4d7fce60689e5d33e6646f4fb7f721f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc1afbf61aff8867045f4f3a413b53e4d7fce60689e5d33e6646f4fb7f721f5", kill_on_drop: false }`
[INFO] [stdout] 2dc1afbf61aff8867045f4f3a413b53e4d7fce60689e5d33e6646f4fb7f721f5