[INFO] fetching crate tensor_checkpoint 0.4.0...
[INFO] testing tensor_checkpoint-0.4.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tensor_checkpoint 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tensor_checkpoint 0.4.0
[INFO] finished tweaking crates.io crate tensor_checkpoint 0.4.0
[INFO] tweaked toml for crates.io crate tensor_checkpoint 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tensor_checkpoint 0.4.0 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 tensor_checkpoint 0.4.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 749b861035a3516735d046263f2deb7bf4c5b85294d8542203dfb61d01166f3e
[INFO] running `Command { std: "docker" "start" "-a" "749b861035a3516735d046263f2deb7bf4c5b85294d8542203dfb61d01166f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749b861035a3516735d046263f2deb7bf4c5b85294d8542203dfb61d01166f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749b861035a3516735d046263f2deb7bf4c5b85294d8542203dfb61d01166f3e", kill_on_drop: false }`
[INFO] [stdout] 749b861035a3516735d046263f2deb7bf4c5b85294d8542203dfb61d01166f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5b707dd589e5e3185b1e5d97fc684edc25d509d2b49df88009d21766cac5809d
[INFO] running `Command { std: "docker" "start" "-a" "5b707dd589e5e3185b1e5d97fc684edc25d509d2b49df88009d21766cac5809d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling arc-swap v1.8.2
[INFO] [stderr]    Compiling memmap2 v0.9.10
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling uuid v1.22.0
[INFO] [stderr]    Compiling wide v0.7.33
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling blake3 v1.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling bitcode_derive v0.6.9
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bitcode v0.6.9
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling tensor_compress v0.4.0
[INFO] [stderr]    Compiling tensor_store v0.4.0
[INFO] [stderr]    Compiling tensor_checkpoint v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.92s
[INFO] running `Command { std: "docker" "inspect" "5b707dd589e5e3185b1e5d97fc684edc25d509d2b49df88009d21766cac5809d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b707dd589e5e3185b1e5d97fc684edc25d509d2b49df88009d21766cac5809d", kill_on_drop: false }`
[INFO] [stdout] 5b707dd589e5e3185b1e5d97fc684edc25d509d2b49df88009d21766cac5809d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a769fa00af9cfeaa7c48e38ca8d9d1b7d8d59f4b19fb1d5344a0a76fabc409f7
[INFO] running `Command { std: "docker" "start" "-a" "a769fa00af9cfeaa7c48e38ca8d9d1b7d8d59f4b19fb1d5344a0a76fabc409f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling zerocopy-derive v0.8.39
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling clap_lex v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.60
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling tensor_compress v0.4.0
[INFO] [stderr]    Compiling tempfile v3.25.0
[INFO] [stderr]    Compiling clap v4.5.60
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling tensor_store v0.4.0
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.8.2
[INFO] [stderr]    Compiling tensor_checkpoint v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 33.04s
[INFO] running `Command { std: "docker" "inspect" "a769fa00af9cfeaa7c48e38ca8d9d1b7d8d59f4b19fb1d5344a0a76fabc409f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a769fa00af9cfeaa7c48e38ca8d9d1b7d8d59f4b19fb1d5344a0a76fabc409f7", kill_on_drop: false }`
[INFO] [stdout] a769fa00af9cfeaa7c48e38ca8d9d1b7d8d59f4b19fb1d5344a0a76fabc409f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b4eaa0f02a8c8070de722f10e6280f38c347df2573a5b97261721b3af4f4ab95
[INFO] running `Command { std: "docker" "start" "-a" "b4eaa0f02a8c8070de722f10e6280f38c347df2573a5b97261721b3af4f4ab95", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tensor_checkpoint-65740e7a2495540f)
[INFO] [stdout] 
[INFO] [stdout] running 53 tests
[INFO] [stdout] test error::tests::test_from_bincode_error ... ok
[INFO] [stdout] test error::tests::test_error_display ... ok
[INFO] [stdout] test preview::tests::test_confirmation_prompt_no_more ... ok
[INFO] [stdout] test preview::tests::test_delete_preview ... ok
[INFO] [stdout] test preview::tests::test_all_op_previews ... ok
[INFO] [stdout] test preview::tests::test_format_bytes ... ok
[INFO] [stdout] test preview::tests::test_drop_table_preview ... ok
[INFO] [stdout] test preview::tests::test_format_bytes_edge_cases ... ok
[INFO] [stdout] test preview::tests::test_sample_truncation ... ok
[INFO] [stdout] test preview::tests::test_confirmation_prompt ... ok
[INFO] [stdout] test preview::tests::test_confirmation_prompt_empty_sample ... ok
[INFO] [stdout] test state::tests::test_affected_counts ... ok
[INFO] [stdout] test state::tests::test_checkpoint_state_with_trigger ... ok
[INFO] [stdout] test state::tests::test_checkpoint_trigger ... ok
[INFO] [stdout] test state::tests::test_metadata_constructors ... ok
[INFO] [stdout] test state::tests::test_operation_names ... ok
[INFO] [stdout] test preview::tests::test_format_warning_all_ops ... ok
[INFO] [stdout] test file_store::tests::test_list_with_limit ... ok
[INFO] [stdout] test file_store::tests::test_delete_by_id ... ok
[INFO] [stdout] test file_store::tests::test_not_found ... ok
[INFO] [stdout] test file_store::tests::test_snapshot_sizes_stable ... ok
[INFO] [stdout] test tests::test_config_methods ... ok
[INFO] [stdout] test file_store::tests::test_store_load_roundtrip ... ok
[INFO] [stdout] test file_store::tests::test_list_sorted_newest_first ... ok
[INFO] [stdout] test state::tests::test_operation_preview_empty ... ok
[INFO] [stdout] test retention::tests::test_deletion_at_limit ... ok
[INFO] [stdout] test retention::tests::test_keeps_one ... ok
[INFO] [stdout] test file_store::tests::test_creates_directory_if_missing ... ok
[INFO] [stdout] test tests::test_auto_checkpoint_enabled ... ok
[INFO] [stdout] test file_store::tests::test_load_by_name ... ok
[INFO] [stdout] test retention::tests::test_no_deletion_under_limit ... ok
[INFO] [stdout] test tests::test_interactive_confirm_enabled ... ok
[INFO] [stdout] test file_store::tests::test_atomic_write_no_corrupt_file ... ok
[INFO] [stdout] test file_store::tests::test_store_with_trigger_and_metadata ... ok
[INFO] [stdout] test tests::test_request_confirmation_disabled ... ok
[INFO] [stdout] test file_store::tests::test_delete_by_name ... ok
[INFO] [stdout] test tests::test_generate_preview ... ok
[INFO] [stdout] test tests::test_create_auto_checkpoint ... ok
[INFO] [stdout] test tests::test_delete_not_found ... ok
[INFO] [stdout] test tests::test_create_manual_checkpoint ... ok
[INFO] [stdout] test tests::test_request_confirmation_without_handler ... ok
[INFO] [stdout] test tests::test_list_with_limit ... ok
[INFO] [stdout] test tests::test_create_unnamed_checkpoint ... ok
[INFO] [stdout] test tests::test_delete_by_name ... ok
[INFO] [stdout] test tests::test_config_accessor ... ok
[INFO] [stdout] test tests::test_auto_confirm_handler ... ok
[INFO] [stdout] test tests::test_delete_checkpoint ... ok
[INFO] [stdout] test tests::test_retention ... ok
[INFO] [stdout] test tests::test_confirmation_handler ... ok
[INFO] [stdout] test tests::test_rollback_not_found ... ok
[INFO] [stdout] test tests::test_metadata_collection ... ok
[INFO] [stdout] test tests::test_rollback ... ok
[INFO] [stdout] test tests::test_rollback_by_name ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 53 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tensor_checkpoint
[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" "b4eaa0f02a8c8070de722f10e6280f38c347df2573a5b97261721b3af4f4ab95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eaa0f02a8c8070de722f10e6280f38c347df2573a5b97261721b3af4f4ab95", kill_on_drop: false }`
[INFO] [stdout] b4eaa0f02a8c8070de722f10e6280f38c347df2573a5b97261721b3af4f4ab95
