[INFO] fetching crate thund-delta 0.0.1...
[INFO] testing thund-delta-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate thund-delta 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate thund-delta 0.0.1
[INFO] finished tweaking crates.io crate thund-delta 0.0.1
[INFO] tweaked toml for crates.io crate thund-delta 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thund-delta 0.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding arrow2 v0.14.2 (available: v0.18.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6682d782a754fe0fae5938d9392eb1c9d5aa97b518a4075b2895c770733ab2c
[INFO] running `Command { std: "docker" "start" "-a" "e6682d782a754fe0fae5938d9392eb1c9d5aa97b518a4075b2895c770733ab2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6682d782a754fe0fae5938d9392eb1c9d5aa97b518a4075b2895c770733ab2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6682d782a754fe0fae5938d9392eb1c9d5aa97b518a4075b2895c770733ab2c", kill_on_drop: false }`
[INFO] [stdout] e6682d782a754fe0fae5938d9392eb1c9d5aa97b518a4075b2895c770733ab2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3793da859ecc84953408cb5538cdecb30b27f834a0b58cac9a1ca95094fbfdfe
[INFO] running `Command { std: "docker" "start" "-a" "3793da859ecc84953408cb5538cdecb30b27f834a0b58cac9a1ca95094fbfdfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling ethnum v1.5.2
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling foreign_vec v0.1.0
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling hash_hasher v2.0.4
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling bytemuck_derive v1.10.1
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling arrow2 v0.14.2
[INFO] [stderr]    Compiling arrowalloy v0.0.3
[INFO] [stderr]    Compiling thund-delta v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DeltaBackend` is never constructed
[INFO] [stdout]   --> src/implentation/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct DeltaBackend {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.28s
[INFO] running `Command { std: "docker" "inspect" "3793da859ecc84953408cb5538cdecb30b27f834a0b58cac9a1ca95094fbfdfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3793da859ecc84953408cb5538cdecb30b27f834a0b58cac9a1ca95094fbfdfe", kill_on_drop: false }`
[INFO] [stdout] 3793da859ecc84953408cb5538cdecb30b27f834a0b58cac9a1ca95094fbfdfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01d5f1259e0ca151c5ac2907248f36d676c064f434eef2ab8f95f65d8e4d0cc1
[INFO] running `Command { std: "docker" "start" "-a" "01d5f1259e0ca151c5ac2907248f36d676c064f434eef2ab8f95f65d8e4d0cc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling thund-delta v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DeltaBackend` is never constructed
[INFO] [stdout]   --> src/implentation/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct DeltaBackend {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "01d5f1259e0ca151c5ac2907248f36d676c064f434eef2ab8f95f65d8e4d0cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d5f1259e0ca151c5ac2907248f36d676c064f434eef2ab8f95f65d8e4d0cc1", kill_on_drop: false }`
[INFO] [stdout] 01d5f1259e0ca151c5ac2907248f36d676c064f434eef2ab8f95f65d8e4d0cc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 65d163b3981cbb95609f40e169e81727f287f3ec97829b4037037cf4dbe5ce0a
[INFO] running `Command { std: "docker" "start" "-a" "65d163b3981cbb95609f40e169e81727f287f3ec97829b4037037cf4dbe5ce0a", kill_on_drop: false }`
[INFO] [stderr] warning: struct `DeltaBackend` is never constructed
[INFO] [stderr]   --> src/implentation/mod.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | struct DeltaBackend {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `thund-delta` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thund_delta-2d7e5b7cc13ff913)
[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" "65d163b3981cbb95609f40e169e81727f287f3ec97829b4037037cf4dbe5ce0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d163b3981cbb95609f40e169e81727f287f3ec97829b4037037cf4dbe5ce0a", kill_on_drop: false }`
[INFO] [stdout] 65d163b3981cbb95609f40e169e81727f287f3ec97829b4037037cf4dbe5ce0a