[INFO] cloning repository https://github.com/KKKZOZ/mini-lsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KKKZOZ/mini-lsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKKKZOZ%2Fmini-lsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKKKZOZ%2Fmini-lsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ed8e903df13cede8a970365134eed1aa860dc51
[INFO] testing KKKZOZ/mini-lsm against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKKKZOZ%2Fmini-lsm" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KKKZOZ/mini-lsm on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/KKKZOZ/mini-lsm
[INFO] finished tweaking git repo https://github.com/KKKZOZ/mini-lsm
[INFO] tweaked toml for git repo https://github.com/KKKZOZ/mini-lsm written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KKKZOZ/mini-lsm 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded triomphe v0.1.8
[INFO] [stderr]   Downloaded ouroboros_macro v0.18.2
[INFO] [stderr]   Downloaded clap v4.4.17
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[INFO] [stderr]   Downloaded os_pipe v1.1.2
[INFO] [stderr]   Downloaded arc-swap v1.5.1
[INFO] [stderr]   Downloaded ouroboros v0.18.2
[INFO] [stderr]   Downloaded clap_builder v4.4.17
[INFO] [stderr]   Downloaded moka v0.9.6
[INFO] [stderr]   Downloaded farmhash v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af1ca0f5e2892eaea28d12bddbbf0386501c8d5ae33f6fdd85ef132de9693eac
[INFO] running `Command { std: "docker" "start" "-a" "af1ca0f5e2892eaea28d12bddbbf0386501c8d5ae33f6fdd85ef132de9693eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af1ca0f5e2892eaea28d12bddbbf0386501c8d5ae33f6fdd85ef132de9693eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af1ca0f5e2892eaea28d12bddbbf0386501c8d5ae33f6fdd85ef132de9693eac", kill_on_drop: false }`
[INFO] [stdout] af1ca0f5e2892eaea28d12bddbbf0386501c8d5ae33f6fdd85ef132de9693eac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a86945c2d8d2723c0db3e8e0bc0a99ec0d1036987d5f3ccb3bda881adeb494b
[INFO] running `Command { std: "docker" "start" "-a" "9a86945c2d8d2723c0db3e8e0bc0a99ec0d1036987d5f3ccb3bda881adeb494b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling rustix v0.38.30
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling anstream v0.6.7
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling yansi v1.0.0-rc.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling clap_builder v4.4.17
[INFO] [stderr]    Compiling raw-cpuid v10.6.0
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling moka v0.9.6
[INFO] [stderr]    Compiling crossbeam-skiplist v0.1.0
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling aliasable v0.1.3
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling triomphe v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling tagptr v0.2.0
[INFO] [stderr]    Compiling farmhash v1.1.5
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling arc-swap v1.5.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling quanta v0.10.1
[INFO] [stderr]    Compiling nix v0.27.1
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling shared_child v1.0.0
[INFO] [stderr]    Compiling os_pipe v1.1.2
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling uuid v1.2.2
[INFO] [stderr]    Compiling duct v0.13.6
[INFO] [stderr]    Compiling console v0.15.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling fd-lock v4.0.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling ouroboros_macro v0.18.2
[INFO] [stderr]    Compiling rustyline v13.0.0
[INFO] [stderr]    Compiling ouroboros v0.18.2
[INFO] [stderr]    Compiling clap v4.4.17
[INFO] [stderr]    Compiling mini-lsm-xtask v0.2.0 (/opt/rustwide/workdir/xtask)
[INFO] [stderr]    Compiling mini-lsm-mvcc v0.2.0 (/opt/rustwide/workdir/mini-lsm-mvcc)
[INFO] [stderr]    Compiling mini-lsm v0.2.0 (/opt/rustwide/workdir/mini-lsm)
[INFO] [stderr]    Compiling mini-lsm-starter v0.2.0 (/opt/rustwide/workdir/mini-lsm-starter)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.39s
[INFO] running `Command { std: "docker" "inspect" "9a86945c2d8d2723c0db3e8e0bc0a99ec0d1036987d5f3ccb3bda881adeb494b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a86945c2d8d2723c0db3e8e0bc0a99ec0d1036987d5f3ccb3bda881adeb494b", kill_on_drop: false }`
[INFO] [stdout] 9a86945c2d8d2723c0db3e8e0bc0a99ec0d1036987d5f3ccb3bda881adeb494b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07f2cd881830c0a0aa8e9a51cded53ec3a2c78d85740c2209570f33691e38615
[INFO] running `Command { std: "docker" "start" "-a" "07f2cd881830c0a0aa8e9a51cded53ec3a2c78d85740c2209570f33691e38615", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mini-lsm-xtask v0.2.0 (/opt/rustwide/workdir/xtask)
[INFO] [stderr]    Compiling mini-lsm-mvcc v0.2.0 (/opt/rustwide/workdir/mini-lsm-mvcc)
[INFO] [stderr]    Compiling mini-lsm v0.2.0 (/opt/rustwide/workdir/mini-lsm)
[INFO] [stderr]    Compiling mini-lsm-starter v0.2.0 (/opt/rustwide/workdir/mini-lsm-starter)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> mini-lsm-starter/src/lsm_storage.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_with_error` are never used
[INFO] [stdout]   --> mini-lsm-starter/src/tests/harness.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl MockIterator {
[INFO] [stdout]    | ----------------- associated functions in this implementation
[INFO] [stdout] 28 |     pub fn new(data: Vec<(Bytes, Bytes)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn new_with_error(data: Vec<(Bytes, Bytes)>, error_when: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_iter_result_by_key` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/tests/harness.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn check_iter_result_by_key<I>(iter: &mut I, expected: Vec<(Bytes, Bytes)>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_lsm_iter_result_by_key` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | pub fn check_lsm_iter_result_by_key<I>(iter: &mut I, expected: Vec<(Bytes, Bytes)>)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_iter_error` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub fn expect_iter_error(mut iter: impl StorageIterator) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_sst` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn generate_sst(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sync` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:213:8
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub fn sync(storage: &LsmStorageInner) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compaction_bench` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 | pub fn compaction_bench(storage: Arc<MiniLsm>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_compaction_ratio` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub fn check_compaction_ratio(storage: Arc<MiniLsm>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dump_files_in_dir` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:411:8
[INFO] [stdout]     |
[INFO] [stdout] 411 | pub fn dump_files_in_dir(path: impl AsRef<Path>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `construct_merge_iterator_over_storage` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/tests/harness.rs:423:8
[INFO] [stdout]     |
[INFO] [stdout] 423 | pub fn construct_merge_iterator_over_storage(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `Command { std: "docker" "inspect" "07f2cd881830c0a0aa8e9a51cded53ec3a2c78d85740c2209570f33691e38615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f2cd881830c0a0aa8e9a51cded53ec3a2c78d85740c2209570f33691e38615", kill_on_drop: false }`
[INFO] [stdout] 07f2cd881830c0a0aa8e9a51cded53ec3a2c78d85740c2209570f33691e38615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b7cdeb3227b80a4790948e18d63b71474f753ac61bdd9cb88d66646d7f77d60
[INFO] running `Command { std: "docker" "start" "-a" "9b7cdeb3227b80a4790948e18d63b71474f753ac61bdd9cb88d66646d7f77d60", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> mini-lsm-starter/src/lsm_storage.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `new` and `new_with_error` are never used
[INFO] [stderr]   --> mini-lsm-starter/src/tests/harness.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl MockIterator {
[INFO] [stderr]    | ----------------- associated functions in this implementation
[INFO] [stderr] 28 |     pub fn new(data: Vec<(Bytes, Bytes)>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn new_with_error(data: Vec<(Bytes, Bytes)>, error_when: usize) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_iter_result_by_key` is never used
[INFO] [stderr]   --> mini-lsm-starter/src/tests/harness.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn check_iter_result_by_key<I>(iter: &mut I, expected: Vec<(Bytes, Bytes)>)
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_lsm_iter_result_by_key` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:148:8
[INFO] [stderr]     |
[INFO] [stderr] 148 | pub fn check_lsm_iter_result_by_key<I>(iter: &mut I, expected: Vec<(Bytes, Bytes)>)
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `expect_iter_error` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:173:8
[INFO] [stderr]     |
[INFO] [stderr] 173 | pub fn expect_iter_error(mut iter: impl StorageIterator) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `generate_sst` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:183:8
[INFO] [stderr]     |
[INFO] [stderr] 183 | pub fn generate_sst(
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sync` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:213:8
[INFO] [stderr]     |
[INFO] [stderr] 213 | pub fn sync(storage: &LsmStorageInner) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `compaction_bench` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:220:8
[INFO] [stderr]     |
[INFO] [stderr] 220 | pub fn compaction_bench(storage: Arc<MiniLsm>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_compaction_ratio` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 | pub fn check_compaction_ratio(storage: Arc<MiniLsm>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dump_files_in_dir` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:411:8
[INFO] [stderr]     |
[INFO] [stderr] 411 | pub fn dump_files_in_dir(path: impl AsRef<Path>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `construct_merge_iterator_over_storage` is never used
[INFO] [stderr]    --> mini-lsm-starter/src/tests/harness.rs:423:8
[INFO] [stderr]     |
[INFO] [stderr] 423 | pub fn construct_merge_iterator_over_storage(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mini-lsm-starter` (lib) generated 1 warning (run `cargo fix --lib -p mini-lsm-starter` to apply 1 suggestion)
[INFO] [stderr] warning: `mini-lsm-starter` (lib test) generated 11 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mini_lsm-6ff3ff94fbe52057)
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stderr] thread 'tests::week1_day1::test_task1_memtable_overwrite' panicked at core/src/panicking.rs:221:5:
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5f1c3d5e338a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]    1:     0x5f1c3d5e338a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x5f1c3d5e338a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x5f1c3d5e338a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x5f1c3d609d83 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]    5:     0x5f1c3d609d83 - core::fmt::write::h7550c97b06c86515
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stderr]    6:     0x5f1c3d5e0443 - std::io::Write::write_fmt::h7b09c64fe0be9c84
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stderr]    7:     0x5f1c3d5e31d2 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    8:     0x5f1c3d5e47ea - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stderr]    9:     0x5f1c3d5e4630 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9
[INFO] [stderr]   10:     0x5f1c3d56af59 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stderr]   11:     0x5f1c3d56af59 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stderr]   12:     0x5f1c3d5e4e88 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stderr]   13:     0x5f1c3d5e4e88 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stderr]   14:     0x5f1c3d5e4c16 - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:667:13
[INFO] [stderr]   15:     0x5f1c3d5e3869 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]   16:     0x5f1c3d5e48dc - rust_begin_unwind
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stderr]   17:     0x5f1c3d37924d - core::panicking::panic_nounwind_fmt::runtime::h1f507a806003dfb2
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:112:18
[INFO] [stderr]   18:     0x5f1c3d37924d - core::panicking::panic_nounwind_fmt::h357fc035dc231634
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:122:5
[INFO] [stderr]   19:     0x5f1c3d3792e2 - core::panicking::panic_nounwind::hd0dad372654c389a
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:221:5
[INFO] [stderr]   20:     0x5f1c3d4d0678 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::h19e8b9a32e711512
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ub_checks.rs:70:21
[INFO] [stderr]   21:     0x5f1c3d4d058f - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hcb3dce297db150e8
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ub_checks.rs:77:17
[INFO] [stderr]   22:     0x5f1c3d470d28 - core::slice::<impl [T]>::get_unchecked::ha7f2deb388ed2b97
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/slice/mod.rs:672:20
[INFO] [stderr]   23:     0x5f1c3d4bac7d - <crossbeam_skiplist::base::Tower<K,V> as core::ops::index::Index<usize>>::index::h853d5a56b8855b4c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-skiplist-0.1.0/src/base.rs:39:18
[INFO] [stderr]   24:     0x5f1c3d4cb98a - crossbeam_skiplist::base::SkipList<K,V>::search_position::hba3548a66fbeeaf3
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-skiplist-0.1.0/src/base.rs:781:33
[INFO] [stderr]   25:     0x5f1c3d4caa49 - crossbeam_skiplist::base::SkipList<K,V>::insert_internal::ha9a5e289f345a7c3
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-skiplist-0.1.0/src/base.rs:871:26
[INFO] [stderr]   26:     0x5f1c3d4cc1ee - crossbeam_skiplist::base::SkipList<K,V>::insert::hbb7cfd53984285d7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-skiplist-0.1.0/src/base.rs:1085:9
[INFO] [stderr]   27:     0x5f1c3d46f4e3 - crossbeam_skiplist::map::SkipMap<K,V>::insert::h561c9c9fa0e1bcae
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-skiplist-0.1.0/src/map.rs:375:20
[INFO] [stderr]   28:     0x5f1c3d4e8c61 - mini_lsm::mem_table::MemTable::put::h3bf80f5e83fb1a55
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/mem_table.rs:96:9
[INFO] [stderr]   29:     0x5f1c3d4e89c1 - mini_lsm::mem_table::MemTable::for_testing_put_slice::h47dd5d75f7340ade
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/mem_table.rs:70:9
[INFO] [stderr]   30:     0x5f1c3d489416 - mini_lsm::tests::week1_day1::test_task1_memtable_overwrite::h7c6864c3ab529113
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/tests/week1_day1.rs:33:5
[INFO] [stderr]   31:     0x5f1c3d4893b7 - mini_lsm::tests::week1_day1::test_task1_memtable_overwrite::{{closure}}::hfdf2cf650b906f61
[INFO] [stderr]                                at /opt/rustwide/workdir/mini-lsm/src/tests/week1_day1.rs:31:35
[INFO] [stderr]   32:     0x5f1c3d4d5316 - core::ops::function::FnOnce::call_once::hb5d5003aae25d90f
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   33:     0x5f1c3d56f91b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   34:     0x5f1c3d56f91b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stderr]   35:     0x5f1c3d56f157 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stderr]   36:     0x5f1c3d56f157 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   37:     0x5f1c3d56f157 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stderr]   38:     0x5f1c3d56f157 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stderr]   39:     0x5f1c3d56f157 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stderr]   40:     0x5f1c3d56f157 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stderr]   41:     0x5f1c3d56f157 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stderr]   42:     0x5f1c3d534434 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stderr]   43:     0x5f1c3d534434 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stderr]   44:     0x5f1c3d537afe - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stderr]   45:     0x5f1c3d537afe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   46:     0x5f1c3d537afe - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stderr]   47:     0x5f1c3d537afe - std::panicking::try::h8ddeca9d705f9069
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stderr]   48:     0x5f1c3d537afe - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stderr]   49:     0x5f1c3d537afe - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stderr]   50:     0x5f1c3d537afe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   51:     0x5f1c3d5e9b1b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stderr]   52:     0x5f1c3d5e9b1b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stderr]   53:     0x5f1c3d5e9b1b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stderr]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stderr]   54:     0x7294f163cac3 - <unknown>
[INFO] [stderr]   55:     0x7294f16cda04 - clone
[INFO] [stderr]   56:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `-p mini-lsm --lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/mini_lsm-6ff3ff94fbe52057` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "9b7cdeb3227b80a4790948e18d63b71474f753ac61bdd9cb88d66646d7f77d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b7cdeb3227b80a4790948e18d63b71474f753ac61bdd9cb88d66646d7f77d60", kill_on_drop: false }`
[INFO] [stdout] 9b7cdeb3227b80a4790948e18d63b71474f753ac61bdd9cb88d66646d7f77d60
