[INFO] fetching crate serialize_fields_macro 0.2.12...
[INFO] testing serialize_fields_macro-0.2.12 against 1.91.0 for beta-1.92-2
[INFO] extracting crate serialize_fields_macro 0.2.12 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate serialize_fields_macro 0.2.12
[INFO] finished tweaking crates.io crate serialize_fields_macro 0.2.12
[INFO] tweaked toml for crates.io crate serialize_fields_macro 0.2.12 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serialize_fields_macro 0.2.12 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serialize_fields_macro 0.2.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1700b784bb1e816c6d621f2f355fce90f304cc95e850df16fc4c3bc7cfa9afce
[INFO] running `Command { std: "docker" "start" "-a" "1700b784bb1e816c6d621f2f355fce90f304cc95e850df16fc4c3bc7cfa9afce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1700b784bb1e816c6d621f2f355fce90f304cc95e850df16fc4c3bc7cfa9afce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1700b784bb1e816c6d621f2f355fce90f304cc95e850df16fc4c3bc7cfa9afce", kill_on_drop: false }`
[INFO] [stdout] 1700b784bb1e816c6d621f2f355fce90f304cc95e850df16fc4c3bc7cfa9afce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a913f004805ca5d3f036f5bb1881e1b44946ca6d5b9157962ff801dbadfb4182
[INFO] running `Command { std: "docker" "start" "-a" "a913f004805ca5d3f036f5bb1881e1b44946ca6d5b9157962ff801dbadfb4182", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serialize_fields_macro v0.2.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `Command { std: "docker" "inspect" "a913f004805ca5d3f036f5bb1881e1b44946ca6d5b9157962ff801dbadfb4182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a913f004805ca5d3f036f5bb1881e1b44946ca6d5b9157962ff801dbadfb4182", kill_on_drop: false }`
[INFO] [stdout] a913f004805ca5d3f036f5bb1881e1b44946ca6d5b9157962ff801dbadfb4182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ba551757543fee986291e97ae9e3832e518291ddf0a2a3de180d11adf6dc00
[INFO] running `Command { std: "docker" "start" "-a" "a5ba551757543fee986291e97ae9e3832e518291ddf0a2a3de180d11adf6dc00", kill_on_drop: false }`
[INFO] [stderr]    Compiling serialize_fields_macro v0.2.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "a5ba551757543fee986291e97ae9e3832e518291ddf0a2a3de180d11adf6dc00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ba551757543fee986291e97ae9e3832e518291ddf0a2a3de180d11adf6dc00", kill_on_drop: false }`
[INFO] [stdout] a5ba551757543fee986291e97ae9e3832e518291ddf0a2a3de180d11adf6dc00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] efe8f71741cd9f0b91bc510b35fce244f998ed49964f2ad6113fb8513bdf86ef
[INFO] running `Command { std: "docker" "start" "-a" "efe8f71741cd9f0b91bc510b35fce244f998ed49964f2ad6113fb8513bdf86ef", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serialize_fields_macro-8898e1d90f15a85a)
[INFO] [stdout] 
[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] [stderr]    Doc-tests serialize_fields_macro
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - serialize_fields_derive (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - serialize_fields_derive (line 22) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `serialize_fields`
[INFO] [stdout]  --> src/lib.rs:23:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serialize_fields::SerializeFields;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `serialize_fields`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `serialize_fields`, use `cargo add serialize_fields` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - serialize_fields_derive (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.23s; merged doctests compilation took 0.13s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "efe8f71741cd9f0b91bc510b35fce244f998ed49964f2ad6113fb8513bdf86ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efe8f71741cd9f0b91bc510b35fce244f998ed49964f2ad6113fb8513bdf86ef", kill_on_drop: false }`
[INFO] [stdout] efe8f71741cd9f0b91bc510b35fce244f998ed49964f2ad6113fb8513bdf86ef