[INFO] fetching crate prefer_derive 0.4.1...
[INFO] testing prefer_derive-0.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate prefer_derive 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate prefer_derive 0.4.1
[INFO] finished tweaking crates.io crate prefer_derive 0.4.1
[INFO] tweaked toml for crates.io crate prefer_derive 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefer_derive 0.4.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prefer_derive 0.4.1 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed9a051fb7b73068ec32b52e2e8c033fbf66e749a547410d3c7c88bad201eb0a
[INFO] running `Command { std: "docker" "start" "-a" "ed9a051fb7b73068ec32b52e2e8c033fbf66e749a547410d3c7c88bad201eb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed9a051fb7b73068ec32b52e2e8c033fbf66e749a547410d3c7c88bad201eb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9a051fb7b73068ec32b52e2e8c033fbf66e749a547410d3c7c88bad201eb0a", kill_on_drop: false }`
[INFO] [stdout] ed9a051fb7b73068ec32b52e2e8c033fbf66e749a547410d3c7c88bad201eb0a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3058382058f9651223da672e05d2994cff18ee0622489c82916eb2da046a7cb5
[INFO] running `Command { std: "docker" "start" "-a" "3058382058f9651223da672e05d2994cff18ee0622489c82916eb2da046a7cb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling prefer_derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.53s
[INFO] running `Command { std: "docker" "inspect" "3058382058f9651223da672e05d2994cff18ee0622489c82916eb2da046a7cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3058382058f9651223da672e05d2994cff18ee0622489c82916eb2da046a7cb5", kill_on_drop: false }`
[INFO] [stdout] 3058382058f9651223da672e05d2994cff18ee0622489c82916eb2da046a7cb5
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 915e94f8600c3911dd599a701b066fe0e8e102c87c4a0cc7e39c6c6b2ee23227
[INFO] running `Command { std: "docker" "start" "-a" "915e94f8600c3911dd599a701b066fe0e8e102c87c4a0cc7e39c6c6b2ee23227", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefer_derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "915e94f8600c3911dd599a701b066fe0e8e102c87c4a0cc7e39c6c6b2ee23227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915e94f8600c3911dd599a701b066fe0e8e102c87c4a0cc7e39c6c6b2ee23227", kill_on_drop: false }`
[INFO] [stdout] 915e94f8600c3911dd599a701b066fe0e8e102c87c4a0cc7e39c6c6b2ee23227
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12975fd6a87b96d5a549f24a706f2ae384dca12eaf3d79a75c4f0924fe170601
[INFO] running `Command { std: "docker" "start" "-a" "12975fd6a87b96d5a549f24a706f2ae384dca12eaf3d79a75c4f0924fe170601", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/prefer_derive-2ef826c4d036df05)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefer_derive
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... ignored
[INFO] [stdout] test src/lib.rs - derive_from_value (line 44) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12975fd6a87b96d5a549f24a706f2ae384dca12eaf3d79a75c4f0924fe170601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12975fd6a87b96d5a549f24a706f2ae384dca12eaf3d79a75c4f0924fe170601", kill_on_drop: false }`
[INFO] [stdout] 12975fd6a87b96d5a549f24a706f2ae384dca12eaf3d79a75c4f0924fe170601
