[INFO] fetching crate starry-fatfs 0.4.1-preview.2...
[INFO] testing starry-fatfs-0.4.1-preview.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate starry-fatfs 0.4.1-preview.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate starry-fatfs 0.4.1-preview.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate starry-fatfs 0.4.1-preview.2
[INFO] tweaked toml for crates.io crate starry-fatfs 0.4.1-preview.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate starry-fatfs 0.4.1-preview.2 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 starry-fatfs 0.4.1-preview.2 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20e3c5ee9b52e7771086960adee1090db89085369b4d64044e1e96a5f4cd0c24
[INFO] running `Command { std: "docker" "start" "-a" "20e3c5ee9b52e7771086960adee1090db89085369b4d64044e1e96a5f4cd0c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20e3c5ee9b52e7771086960adee1090db89085369b4d64044e1e96a5f4cd0c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20e3c5ee9b52e7771086960adee1090db89085369b4d64044e1e96a5f4cd0c24", kill_on_drop: false }`
[INFO] [stdout] 20e3c5ee9b52e7771086960adee1090db89085369b4d64044e1e96a5f4cd0c24
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d000c408b657a46cd0dacfbaf3906d9e621830dd7232ff4bcc75cbe7f550770
[INFO] running `Command { std: "docker" "start" "-a" "6d000c408b657a46cd0dacfbaf3906d9e621830dd7232ff4bcc75cbe7f550770", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling starry-fatfs v0.4.1-preview.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "6d000c408b657a46cd0dacfbaf3906d9e621830dd7232ff4bcc75cbe7f550770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d000c408b657a46cd0dacfbaf3906d9e621830dd7232ff4bcc75cbe7f550770", kill_on_drop: false }`
[INFO] [stdout] 6d000c408b657a46cd0dacfbaf3906d9e621830dd7232ff4bcc75cbe7f550770
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09a101a262806c8cd89e0f168a63d5e014195a4962b5c920a90ad5585daa8036
[INFO] running `Command { std: "docker" "start" "-a" "09a101a262806c8cd89e0f168a63d5e014195a4962b5c920a90ad5585daa8036", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling fscommon v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling starry-fatfs v0.4.1-preview.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/fsck.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut image = std::fs::OpenOptions::new()
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.76s
[INFO] running `Command { std: "docker" "inspect" "09a101a262806c8cd89e0f168a63d5e014195a4962b5c920a90ad5585daa8036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09a101a262806c8cd89e0f168a63d5e014195a4962b5c920a90ad5585daa8036", kill_on_drop: false }`
[INFO] [stdout] 09a101a262806c8cd89e0f168a63d5e014195a4962b5c920a90ad5585daa8036
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 512cbb153a2f642c83debf399c5ff224b1932a0b45baa9119a517de096633ee6
[INFO] running `Command { std: "docker" "start" "-a" "512cbb153a2f642c83debf399c5ff224b1932a0b45baa9119a517de096633ee6", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/fsck.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut image = std::fs::OpenOptions::new()
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `starry-fatfs` (test "fsck") generated 1 warning (run `cargo fix --test "fsck" -p starry-fatfs` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fatfs-fa33466988daf900)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test boot_sector::tests::test_determine_bytes_per_cluster_fat12 ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_bytes_per_cluster_fat16 ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_bytes_per_cluster_fat32 ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_fs_layout_fat12 ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_fs_layout_fat16 ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_fs_layout_fat32 ... ok
[INFO] [stdout] test boot_sector::tests::test_format_boot_sector ... ok
[INFO] [stdout] test boot_sector::tests::test_determine_sectors_per_fat ... ok
[INFO] [stdout] test dir_entry::tests::short_name_eq_ignore_case ... ok
[INFO] [stdout] test dir::tests::test_generate_short_name_collisions_short ... ok
[INFO] [stdout] test dir::tests::test_lfn_checksum_overflow ... ok
[INFO] [stdout] test dir::tests::test_short_name_checksum_overflow ... ok
[INFO] [stdout] test dir::tests::test_split_path ... ok
[INFO] [stdout] test dir_entry::tests::lowercase_short_name ... ok
[INFO] [stdout] test table::tests::test_fat32 ... ok
[INFO] [stdout] test time::tests::date_encode_decode ... ok
[INFO] [stdout] test time::tests::date_new_no_panic_1980 ... ok
[INFO] [stdout] test time::tests::date_new_no_panic_2107 ... ok
[INFO] [stdout] test dir_entry::tests::short_name_with_ext ... ok
[INFO] [stdout] test dir::tests::test_generate_short_name_collisions_long ... ok
[INFO] [stdout] test dir::tests::test_generate_short_name ... ok
[INFO] [stdout] test time::tests::date_time_from_chrono_leap_second ... ok
[INFO] [stdout] test time::tests::time_encode_decode ... ok
[INFO] [stdout] test dir_entry::tests::short_name_05_changed_to_e5 ... ok
[INFO] [stdout] test dir_entry::tests::short_name_without_ext ... ok
[INFO] [stdout] test boot_sector::tests::test_estimate_fat_type ... ok
[INFO] [stdout] test table::tests::test_fat12 ... ok
[INFO] [stdout] test table::tests::test_fat16 ... ok
[INFO] [stdout] test time::tests::date_new_panic_year_2108 - should panic ... ok
[INFO] [stdout] test time::tests::date_new_panic_year_1979 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/format.rs (/opt/rustwide/target/debug/deps/format-6f7e0c8d0c52e164)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_format_1mb ... ok
[INFO] [stdout] test test_format_8mb_1fat ... ok
[INFO] [stdout] test test_zero_root_dir_clusters ... ok
[INFO] [stdout] test test_format_50mb ... ok
[INFO] [stderr] error: test failed, to rerun pass `--test format`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/format-6f7e0c8d0c52e164` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "512cbb153a2f642c83debf399c5ff224b1932a0b45baa9119a517de096633ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512cbb153a2f642c83debf399c5ff224b1932a0b45baa9119a517de096633ee6", kill_on_drop: false }`
[INFO] [stdout] 512cbb153a2f642c83debf399c5ff224b1932a0b45baa9119a517de096633ee6
