[INFO] fetching crate nil-namegen 0.4.22...
[INFO] testing nil-namegen-0.4.22 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate nil-namegen 0.4.22 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nil-namegen 0.4.22
[INFO] finished tweaking crates.io crate nil-namegen 0.4.22
[INFO] tweaked toml for crates.io crate nil-namegen 0.4.22 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nil-namegen 0.4.22 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 nil-namegen 0.4.22 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a149701bb8b43f350cb613fada3540b1c86accf12863f15fd633c0def070c909
[INFO] running `Command { std: "docker" "start" "-a" "a149701bb8b43f350cb613fada3540b1c86accf12863f15fd633c0def070c909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a149701bb8b43f350cb613fada3540b1c86accf12863f15fd633c0def070c909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a149701bb8b43f350cb613fada3540b1c86accf12863f15fd633c0def070c909", kill_on_drop: false }`
[INFO] [stdout] a149701bb8b43f350cb613fada3540b1c86accf12863f15fd633c0def070c909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 590005a5a09a0f6bf3cd9800073d6837a042f80a7d0dd420b91950b19ce65c54
[INFO] running `Command { std: "docker" "start" "-a" "590005a5a09a0f6bf3cd9800073d6837a042f80a7d0dd420b91950b19ce65c54", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling strum_macros v0.28.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rand v0.10.0
[INFO] [stderr]    Compiling strum v0.28.0
[INFO] [stderr]    Compiling nil-namegen v0.4.22 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "590005a5a09a0f6bf3cd9800073d6837a042f80a7d0dd420b91950b19ce65c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590005a5a09a0f6bf3cd9800073d6837a042f80a7d0dd420b91950b19ce65c54", kill_on_drop: false }`
[INFO] [stdout] 590005a5a09a0f6bf3cd9800073d6837a042f80a7d0dd420b91950b19ce65c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f7be425002961218c4a4d3d36ccf7df1574ea770dc5ed66766839b7dedf3193
[INFO] running `Command { std: "docker" "start" "-a" "6f7be425002961218c4a4d3d36ccf7df1574ea770dc5ed66766839b7dedf3193", kill_on_drop: false }`
[INFO] [stderr]    Compiling nil-namegen v0.4.22 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "6f7be425002961218c4a4d3d36ccf7df1574ea770dc5ed66766839b7dedf3193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7be425002961218c4a4d3d36ccf7df1574ea770dc5ed66766839b7dedf3193", kill_on_drop: false }`
[INFO] [stdout] 6f7be425002961218c4a4d3d36ccf7df1574ea770dc5ed66766839b7dedf3193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7b21ca03993c40d76ee58f607fa77cdbb3aed1c7ee42ab44ecaed475c4dc363f
[INFO] running `Command { std: "docker" "start" "-a" "7b21ca03993c40d76ee58f607fa77cdbb3aed1c7ee42ab44ecaed475c4dc363f", 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/nil_namegen-42916fe90bfd1bac)
[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 nil_namegen
[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] running `Command { std: "docker" "inspect" "7b21ca03993c40d76ee58f607fa77cdbb3aed1c7ee42ab44ecaed475c4dc363f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b21ca03993c40d76ee58f607fa77cdbb3aed1c7ee42ab44ecaed475c4dc363f", kill_on_drop: false }`
[INFO] [stdout] 7b21ca03993c40d76ee58f607fa77cdbb3aed1c7ee42ab44ecaed475c4dc363f