[INFO] fetching crate mergeme_derive 0.2.0...
[INFO] testing mergeme_derive-0.2.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate mergeme_derive 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mergeme_derive 0.2.0
[INFO] finished tweaking crates.io crate mergeme_derive 0.2.0
[INFO] tweaked toml for crates.io crate mergeme_derive 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mergeme_derive 0.2.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mergeme_derive 0.2.0 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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 275b9b25de56c943252ba799a32064118ed48a30401c8b37e42c30e55e5bb28c
[INFO] running `Command { std: "docker" "start" "-a" "275b9b25de56c943252ba799a32064118ed48a30401c8b37e42c30e55e5bb28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "275b9b25de56c943252ba799a32064118ed48a30401c8b37e42c30e55e5bb28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275b9b25de56c943252ba799a32064118ed48a30401c8b37e42c30e55e5bb28c", kill_on_drop: false }`
[INFO] [stdout] 275b9b25de56c943252ba799a32064118ed48a30401c8b37e42c30e55e5bb28c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9e0448ad7a2c3904b9e3751195064c422d10a696e61b980bcdac9995826a73c
[INFO] running `Command { std: "docker" "start" "-a" "e9e0448ad7a2c3904b9e3751195064c422d10a696e61b980bcdac9995826a73c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling mergeme_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "e9e0448ad7a2c3904b9e3751195064c422d10a696e61b980bcdac9995826a73c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e0448ad7a2c3904b9e3751195064c422d10a696e61b980bcdac9995826a73c", kill_on_drop: false }`
[INFO] [stdout] e9e0448ad7a2c3904b9e3751195064c422d10a696e61b980bcdac9995826a73c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba7eda795c7387bb7187808d2022b525573e616999b1f847a6c9020e1c80c46f
[INFO] running `Command { std: "docker" "start" "-a" "ba7eda795c7387bb7187808d2022b525573e616999b1f847a6c9020e1c80c46f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling mergeme_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.91s
[INFO] running `Command { std: "docker" "inspect" "ba7eda795c7387bb7187808d2022b525573e616999b1f847a6c9020e1c80c46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7eda795c7387bb7187808d2022b525573e616999b1f847a6c9020e1c80c46f", kill_on_drop: false }`
[INFO] [stdout] ba7eda795c7387bb7187808d2022b525573e616999b1f847a6c9020e1c80c46f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44328f8c1c590ff59776fd371c55558e2dc3073e058c729905f4de9ae029f146
[INFO] running `Command { std: "docker" "start" "-a" "44328f8c1c590ff59776fd371c55558e2dc3073e058c729905f4de9ae029f146", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mergeme_derive-e526e457b9919d41)
[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 mergeme_derive
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - derive_merge (line 123) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 218) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - derive_merge (line 229) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - derive_merge (line 179) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 104) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 239) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - derive_merge (line 18) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 206) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 250) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - derive_merge (line 265) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - derive_merge (line 143) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 190) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_merge (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 123) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]    --> src/lib.rs:128:10
[INFO] [stdout]     |
[INFO] [stdout] 128 | #[derive(Merge)]
[INFO] [stdout]     |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 179) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]    --> src/lib.rs:183:10
[INFO] [stdout]     |
[INFO] [stdout] 183 | #[derive(Merge)]
[INFO] [stdout]     |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 104) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]    --> src/lib.rs:108:10
[INFO] [stdout]     |
[INFO] [stdout] 108 | #[derive(Merge)]
[INFO] [stdout]     |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 18) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]   --> src/lib.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Merge)]
[INFO] [stdout]    |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 206) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]    --> src/lib.rs:210:10
[INFO] [stdout]     |
[INFO] [stdout] 210 | #[derive(Merge)]
[INFO] [stdout]     |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 143) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `mergeme`
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 | use mergeme::Merge;
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `mergeme`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `mergeme`, use `cargo add mergeme` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `partial` in this scope
[INFO] [stdout]    --> src/lib.rs:148:3
[INFO] [stdout]     |
[INFO] [stdout] 148 | #[partial(PartialTrickyDefault, derive(Deserialize))]
[INFO] [stdout]     |   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `partial` is an attribute that can be used by the derive macro `Merge`, you might be missing a `derive` attribute
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `partial` in this scope
[INFO] [stdout]    --> src/lib.rs:152:7
[INFO] [stdout]     |
[INFO] [stdout] 152 |     #[partial(serde(default))]
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `partial` is an attribute that can be used by the derive macro `Merge`, you might be missing a `derive` attribute
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `partial` in this scope
[INFO] [stdout]    --> src/lib.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 |     #[partial(serde(default = "zero_default"))]
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `partial` is an attribute that can be used by the derive macro `Merge`, you might be missing a `derive` attribute
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `PartialTrickyDefault` in this scope
[INFO] [stdout]    --> src/lib.rs:170:22
[INFO] [stdout]     |
[INFO] [stdout] 170 | let partial_tricky = PartialTrickyDefault::deserialize(deserializer).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^ use of undeclared type `PartialTrickyDefault`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 190) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `mergeme`
[INFO] [stdout]    --> src/lib.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 | use mergeme::Merge;
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `mergeme`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `mergeme`, use `cargo add mergeme` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `partial` in this scope
[INFO] [stdout]    --> src/lib.rs:194:3
[INFO] [stdout]     |
[INFO] [stdout] 194 | #[partial(PartialNamedData)]
[INFO] [stdout]     |   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `partial` is an attribute that can be used by the derive macro `Merge`, you might be missing a `derive` attribute
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strategy` in this scope
[INFO] [stdout]    --> src/lib.rs:199:7
[INFO] [stdout]     |
[INFO] [stdout] 199 |     #[strategy(merge)]
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `strategy` is an attribute that can be used by the derive macro `Merge`, you might be missing a `derive` attribute
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_merge (line 80) stdout ----
[INFO] [stdout] error[E0433]: cannot find `mergeme` in the crate root
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[derive(Merge)]
[INFO] [stdout]    |          ^^^^^ could not find `mergeme` in the list of imported crates
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Merge` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - derive_merge (line 104)
[INFO] [stdout]     src/lib.rs - derive_merge (line 123)
[INFO] [stdout]     src/lib.rs - derive_merge (line 143)
[INFO] [stdout]     src/lib.rs - derive_merge (line 179)
[INFO] [stdout]     src/lib.rs - derive_merge (line 18)
[INFO] [stdout]     src/lib.rs - derive_merge (line 190)
[INFO] [stdout]     src/lib.rs - derive_merge (line 206)
[INFO] [stdout]     src/lib.rs - derive_merge (line 80)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 8 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.99s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.13s; merged doctests compilation took 0.14s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "44328f8c1c590ff59776fd371c55558e2dc3073e058c729905f4de9ae029f146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44328f8c1c590ff59776fd371c55558e2dc3073e058c729905f4de9ae029f146", kill_on_drop: false }`
[INFO] [stdout] 44328f8c1c590ff59776fd371c55558e2dc3073e058c729905f4de9ae029f146
