[INFO] fetching crate serde-versions-derive 0.0.5...
[INFO] testing serde-versions-derive-0.0.5 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate serde-versions-derive 0.0.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate serde-versions-derive 0.0.5
[INFO] finished tweaking crates.io crate serde-versions-derive 0.0.5
[INFO] tweaked toml for crates.io crate serde-versions-derive 0.0.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-versions-derive 0.0.5 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.114)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9919b0e6437e38c369ad114acc7e83fbd14e3b07c480d7c116c853265fdc47c7
[INFO] running `Command { std: "docker" "start" "-a" "9919b0e6437e38c369ad114acc7e83fbd14e3b07c480d7c116c853265fdc47c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9919b0e6437e38c369ad114acc7e83fbd14e3b07c480d7c116c853265fdc47c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9919b0e6437e38c369ad114acc7e83fbd14e3b07c480d7c116c853265fdc47c7", kill_on_drop: false }`
[INFO] [stdout] 9919b0e6437e38c369ad114acc7e83fbd14e3b07c480d7c116c853265fdc47c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 391ed29facf6029bbe8fb8a5d9238792abd7a3716b037b8c4c9841758584009c
[INFO] running `Command { std: "docker" "start" "-a" "391ed29facf6029bbe8fb8a5d9238792abd7a3716b037b8c4c9841758584009c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde-versions-derive v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "391ed29facf6029bbe8fb8a5d9238792abd7a3716b037b8c4c9841758584009c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391ed29facf6029bbe8fb8a5d9238792abd7a3716b037b8c4c9841758584009c", kill_on_drop: false }`
[INFO] [stdout] 391ed29facf6029bbe8fb8a5d9238792abd7a3716b037b8c4c9841758584009c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9985d89f68edd1419a521753ce69b88e5c216f8fab16c0b122fd17c2de250293
[INFO] running `Command { std: "docker" "start" "-a" "9985d89f68edd1419a521753ce69b88e5c216f8fab16c0b122fd17c2de250293", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde-versions-derive v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> tests/test.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[version(3)]
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout] 5 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stdout]   |                 --------- the attribute is introduced here
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout]   = note: this warning originates in the attribute macro `version` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> tests/test.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[version(33)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 13 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stdout]    |                 --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: this warning originates in the attribute macro `version` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.13s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: serde-versions-derive v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9985d89f68edd1419a521753ce69b88e5c216f8fab16c0b122fd17c2de250293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9985d89f68edd1419a521753ce69b88e5c216f8fab16c0b122fd17c2de250293", kill_on_drop: false }`
[INFO] [stdout] 9985d89f68edd1419a521753ce69b88e5c216f8fab16c0b122fd17c2de250293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ea657a68cec9c6deb7cde92dae7d6218df5fdd24b8294032a1d779eb13c9fa47
[INFO] running `Command { std: "docker" "start" "-a" "ea657a68cec9c6deb7cde92dae7d6218df5fdd24b8294032a1d779eb13c9fa47", kill_on_drop: false }`
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]  --> tests/test.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[version(3)]
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 5 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stderr]   |                 --------- the attribute is introduced here
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr]   = note: `#[warn(legacy_derive_helpers)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr]   = note: this warning originates in the attribute macro `version` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> tests/test.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[version(33)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 13 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stderr]    |                 --------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr]    = note: this warning originates in the attribute macro `version` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `serde-versions-derive` (test "test") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: serde-versions-derive v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_versions_derive-44ee567375553f07)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-d971693f6d03cc76)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test to_json_has_version_unnamed ... ok
[INFO] [stdout] test to_json_has_version ... ok
[INFO] [stdout] test to_versioned ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_versions_derive
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 24) ... ignored
[INFO] [stdout] test src/lib.rs - (line 13) - compile ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - (line 45) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 13) stdout ----
[INFO] [stdout] error: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[version(3)]
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout] 18 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stdout]    |                 --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this error originates in the attribute macro `version` (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] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 45) stdout ----
[INFO] [stdout] error: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[version(3)]
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout] 50 | #[derive(Clone, Serialize, Deserialize)]
[INFO] [stdout]    |                 --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this error originates in the attribute macro `version` (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] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 13)
[INFO] [stdout]     src/lib.rs - (line 45)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea657a68cec9c6deb7cde92dae7d6218df5fdd24b8294032a1d779eb13c9fa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea657a68cec9c6deb7cde92dae7d6218df5fdd24b8294032a1d779eb13c9fa47", kill_on_drop: false }`
[INFO] [stdout] ea657a68cec9c6deb7cde92dae7d6218df5fdd24b8294032a1d779eb13c9fa47
