[INFO] fetching crate file_backed 0.6.3...
[INFO] testing file_backed-0.6.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate file_backed 0.6.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate file_backed 0.6.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate file_backed 0.6.3
[INFO] tweaked toml for crates.io crate file_backed 0.6.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate file_backed 0.6.3 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] crate crates.io crate file_backed 0.6.3 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 709ab60ca78eee83960e5856046fe6e79068320aa49d5f203732b9933e5c2424
[INFO] running `Command { std: "docker" "start" "-a" "709ab60ca78eee83960e5856046fe6e79068320aa49d5f203732b9933e5c2424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "709ab60ca78eee83960e5856046fe6e79068320aa49d5f203732b9933e5c2424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709ab60ca78eee83960e5856046fe6e79068320aa49d5f203732b9933e5c2424", kill_on_drop: false }`
[INFO] [stdout] 709ab60ca78eee83960e5856046fe6e79068320aa49d5f203732b9933e5c2424
[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] 8c1ee3abb0a4c7f73e1175e4d6e4260ab5ff70af59f04feff0bd42d811482d39
[INFO] running `Command { std: "docker" "start" "-a" "8c1ee3abb0a4c7f73e1175e4d6e4260ab5ff70af59f04feff0bd42d811482d39", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling index_list v0.2.16
[INFO] [stderr]    Compiling consume_on_drop v0.1.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling get_mut_drop_weak v0.1.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling cutoff_list v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling file_backed v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "8c1ee3abb0a4c7f73e1175e4d6e4260ab5ff70af59f04feff0bd42d811482d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1ee3abb0a4c7f73e1175e4d6e4260ab5ff70af59f04feff0bd42d811482d39", kill_on_drop: false }`
[INFO] [stdout] 8c1ee3abb0a4c7f73e1175e4d6e4260ab5ff70af59f04feff0bd42d811482d39
[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] df5de932e680517dca6cb4262086a2f6dc7e0060629b002fa2fcdd497886785a
[INFO] running `Command { std: "docker" "start" "-a" "df5de932e680517dca6cb4262086a2f6dc7e0060629b002fa2fcdd497886785a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling bitflags v2.9.3
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tempfile v3.21.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling file_backed v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.53s
[INFO] running `Command { std: "docker" "inspect" "df5de932e680517dca6cb4262086a2f6dc7e0060629b002fa2fcdd497886785a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5de932e680517dca6cb4262086a2f6dc7e0060629b002fa2fcdd497886785a", kill_on_drop: false }`
[INFO] [stdout] df5de932e680517dca6cb4262086a2f6dc7e0060629b002fa2fcdd497886785a
[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] 114b6f2210aaab8dc2a0898055f36a6f1370763c0d75300b2c44dc326258792e
[INFO] running `Command { std: "docker" "start" "-a" "114b6f2210aaab8dc2a0898055f36a6f1370763c0d75300b2c44dc326258792e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/file_backed-562ddfd23bea2c1b)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-89173c6de30bebcc)
[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 39 tests
[INFO] [stdout] test test_async_make_mut_unique_no_clone ... ok
[INFO] [stdout] test test_blocking_register_success ... ok
[INFO] [stdout] test test_blocking_make_mut_success_unique ... ok
[INFO] [stdout] test test_blocking_make_mut_shared_clones ... ok
[INFO] [stdout] test test_blocking_register_same_persisted_key_twice ... ok
[INFO] [stdout] test test_blocking_load_success ... ok
[INFO] [stdout] test test_insert_and_load_async ... ok
[INFO] [stdout] test test_blocking_save_convenience ... ok
[INFO] [stdout] test test_eviction_triggers_store_reload_triggers_load ... ok
[INFO] [stdout] test test_blocking_try_load_mut_triggers_load_if_not_cached ... ok
[INFO] [stdout] test test_blocking_persist_success ... ok
[INFO] [stdout] test test_blocking_save_skips_already_persisted ... ok
[INFO] [stdout] test test_guard_held_item_evicted_then_dumped_on_guard_drop ... ok
[INFO] [stdout] test test_make_mut_shared_clones_no_delete_during_call ... ok
[INFO] [stdout] test test_register_does_not_load_or_store_first_load_does ... ok
[INFO] [stdout] test test_lru_strict_half_behavior_on_access ... ok
[INFO] [stdout] test test_blocking_try_load_mut_success ... ok
[INFO] [stdout] test test_blocking_save_more_items_than_max_simultaneous ... ok
[INFO] [stdout] test test_persist_is_noop_if_already_persisted ... ok
[INFO] [stdout] test test_persist_triggers_store_if_not_written_noop_if_done ... ok
[INFO] [stdout] test test_register_same_persisted_key_twice ... ok
[INFO] [stdout] test test_blocking_write_now_success ... ok
[INFO] [stdout] test test_register_fails_if_key_not_in_tracked_path ... ok
[INFO] [stdout] test test_sync_try_load_mut_success_when_cached ... ok
[INFO] [stdout] test test_sync_try_load_mut_fails_when_not_cached ... ok
[INFO] [stdout] test test_try_load_fails_when_not_cached ... ok
[INFO] [stdout] test test_try_load_success_when_cached ... ok
[INFO] [stdout] test test_try_load_mut_unique_original_not_written ... ok
[INFO] [stdout] test test_try_load_mut_fails_if_not_unique ... ok
[INFO] [stdout] test test_try_load_mut_triggers_load_if_not_cached ... ok
[INFO] [stdout] test test_write_now_triggers_store_drop_triggers_delete ... ok
[INFO] [stdout] test test_load_returns_from_cache_if_present ... ok
[INFO] [stdout] test test_try_load_mut_unique_deletes_original_temp ... ok
[INFO] [stdout] test test_load_triggers_blocking_load_if_not_cached ... ok
[INFO] [stdout] test test_blocking_save_many_deletions_exceeding_limit ... ok
[INFO] [stdout] test test_sync_try_load_mut_fails_while_store_is_running_for_eviction ... ok
[INFO] [stdout] test test_try_load_fails_while_store_is_running_for_eviction ... ok
[INFO] [stdout] test test_item_dropped_during_eviction_write_triggers_delete ... ok
[INFO] [stdout] test stress_saturated_blocking_pool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests file_backed
[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" "114b6f2210aaab8dc2a0898055f36a6f1370763c0d75300b2c44dc326258792e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "114b6f2210aaab8dc2a0898055f36a6f1370763c0d75300b2c44dc326258792e", kill_on_drop: false }`
[INFO] [stdout] 114b6f2210aaab8dc2a0898055f36a6f1370763c0d75300b2c44dc326258792e