[INFO] cloning repository https://github.com/sawlow81wt/mydb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sawlow81wt/mydb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsawlow81wt%2Fmydb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsawlow81wt%2Fmydb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 441c85e44023875315189446e1cb0763ae518f69
[INFO] testing sawlow81wt/mydb against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsawlow81wt%2Fmydb" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sawlow81wt/mydb on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sawlow81wt/mydb
[INFO] finished tweaking git repo https://github.com/sawlow81wt/mydb
[INFO] tweaked toml for git repo https://github.com/sawlow81wt/mydb written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sawlow81wt/mydb 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-2024-12-08" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a18d155dc7f1cd8f067e3e4fd0ce8b2f277fc0d106ab1d0a1e1dd81c2e20834d
[INFO] running `Command { std: "docker" "start" "-a" "a18d155dc7f1cd8f067e3e4fd0ce8b2f277fc0d106ab1d0a1e1dd81c2e20834d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a18d155dc7f1cd8f067e3e4fd0ce8b2f277fc0d106ab1d0a1e1dd81c2e20834d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a18d155dc7f1cd8f067e3e4fd0ce8b2f277fc0d106ab1d0a1e1dd81c2e20834d", kill_on_drop: false }`
[INFO] [stdout] a18d155dc7f1cd8f067e3e4fd0ce8b2f277fc0d106ab1d0a1e1dd81c2e20834d
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c25ef6bf3044740caa3751894e6683a808a79bc4169941c31f83f331e81e30c
[INFO] running `Command { std: "docker" "start" "-a" "1c25ef6bf3044740caa3751894e6683a808a79bc4169941c31f83f331e81e30c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling mydb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/transaction/lock_table.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/transaction/log_record.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log_manager::LogManager`
[INFO] [stdout]  --> src/transaction/log_record.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     log_manager::LogManager,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::transaction::Transaction`
[INFO] [stdout]  --> src/transaction/log_record.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::transaction::Transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LogRecordTrait` and `transaction::Transaction`
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |     log_record::{LogRecord, LogRecordTrait},
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     transaction::Transaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             LogRecordType::CheckPoint => {
[INFO] [stdout]     |             ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 152 |             LogRecordType::Start => {
[INFO] [stdout]     |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 158 |             LogRecordType::Commit => {
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 164 |             LogRecordType::Rollback => {
[INFO] [stdout]     |             ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ ...and 2 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 283 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 232 | /             LogRecord::CheckPoint(record)
[INFO] [stdout] 233 | |             | LogRecord::Commit(record)
[INFO] [stdout] 234 | |             | LogRecord::Start(record)
[INFO] [stdout] 235 | |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     | |_________________________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 246 |               LogRecord::SetInt(record) => {
[INFO] [stdout]     |               ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 264 |               LogRecord::SetString(record) => {
[INFO] [stdout]     |               ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 283 |               _ => todo!(),
[INFO] [stdout]     |               ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/transaction/transaction.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |             LogRecord::CheckPoint(record)
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout] 189 |             | LogRecord::Commit(record)
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout] 190 |             | LogRecord::Start(record)
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout] 191 |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 ~             LogRecord::CheckPoint(_record)
[INFO] [stdout] 189 ~             | LogRecord::Commit(_record)
[INFO] [stdout] 190 ~             | LogRecord::Start(_record)
[INFO] [stdout] 191 ~             | LogRecord::Rollback(_record) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]   --> src/buffer_manager.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BufferAbortError` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BufferAbortError {
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] 16 |     #[error("Buffer Abort Error")]
[INFO] [stdout] 17 |     BufferAbortError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BufferAbortError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_id`, `pins`, `txnum`, and `last_save_numbder` are never read
[INFO] [stdout]   --> src/buffer_manager.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Buffer {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     contents: Page,
[INFO] [stdout] 22 |     block_id: Option<BlockId>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 23 |     pins: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     txnum: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     last_save_numbder: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/buffer_manager.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Buffer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(block_size: usize) -> Buffer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn is_pinned(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn assign_to_back(&mut self, block_id: BlockId) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn flush(&mut self) {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 82 |
[INFO] [stdout] 83 |     fn pin(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn unpin(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferManager` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct BufferManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/buffer_manager.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 99  | impl BufferManager {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 100 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn available(&self) -> i32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn unpin(&mut self, buffer: Arc<RwLock<Buffer>>) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn pin(&mut self, block_id: &BlockId) -> Result<Arc<RwLock<Buffer>>, BufferAbortError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn try_to_pin(&mut self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn find_assignable_block(&self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn find_existing_buffer(&self, target_block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     fn choose_unpinned_buffer(&self) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]  --> src/file_manager.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_manager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl BlockId {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `write`, `length`, `append_new_block`, and `last_block_num` are never used
[INFO] [stdout]    --> src/file_manager.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl FileManager {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 101 |     pub fn new(directory: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn write(&mut self, block_id: &BlockId, page: &mut Page) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn append_new_block(&mut self, filename: &String) -> io::Result<BlockId> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn last_block_num(&mut self, filename: &String) -> io::Result<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogManager` is never constructed
[INFO] [stdout]  --> src/log_manager.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct LogManager {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/log_manager.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl LogManager {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn new(mut file_manager: FileManager, log_file: String) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50  |     pub fn iterator(&mut self) -> io::Result<LogIterator> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55  |     pub fn append_record(&mut self, log_record: &[u8]) -> io::Result<i32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn append_new_block(&mut self) -> io::Result<BlockId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     fn get_boundary(&mut self) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn set_boundary(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn flush(&mut self) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/log_manager.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl LogIterator {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 120 |     pub fn new(file_manager: Arc<Mutex<FileManager>>, block_id: BlockId) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferList` is never constructed
[INFO] [stdout]  --> src/transaction/buffer_list.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BufferList {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_buffer`, `pin`, `unpin`, and `unpin_all` are never used
[INFO] [stdout]   --> src/transaction/buffer_list.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl BufferList {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(buffer_manager: Arc<Mutex<BufferManager>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get_buffer(&self, block_id: &BlockId) -> Option<&Arc<RwLock<Buffer>>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn unpin_all(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]  --> src/transaction/lock_table.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MAX_TIME: Duration = Duration::from_secs(10);
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table` is never read
[INFO] [stdout]   --> src/transaction/lock_table.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct LockTable {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     table: HashMap<BlockId, i32>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/transaction/lock_table.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl LockTable {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn slock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn xlock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn unlock(&mut self, block_id: &BlockId) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn has_xlock(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn has_other_slocks(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn get_lock_val(&self, block_id: &BlockId) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcurrentManager` is never constructed
[INFO] [stdout]   --> src/transaction/lock_table.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct ConcurrentManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `slock`, `xlock`, `release`, and `has_lock` are never used
[INFO] [stdout]    --> src/transaction/lock_table.rs:83:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl ConcurrentManager {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 83  |     pub fn new(lock_table: Arc<Mutex<LockTable>>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     pub fn slock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub fn xlock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn release(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn has_lock(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_txnum` is never used
[INFO] [stdout]    --> src/transaction/log_record.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub trait LogRecordTrait {
[INFO] [stdout]     |           -------------- method in this trait
[INFO] [stdout] 125 |     fn get_txnum(&self) -> i32;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `record_type` is never read
[INFO] [stdout]    --> src/transaction/log_record.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct UpdateRecord<T> {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 134 |     record_type: LogRecordType,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RecoveryManager` is never constructed
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct RecoveryManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `commit`, `rollback`, `recover`, `set_int`, and `set_string` are never used
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl RecoveryManager {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn commit(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn rollback(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn recover(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn set_int(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn set_string(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `TXMUN` is never used
[INFO] [stdout]   --> src/transaction/transaction.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | static TXMUN: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]   --> src/transaction/transaction.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/transaction/transaction.rs:28:12
[INFO] [stdout]     |
[INFO] [stdout] 27  | impl Transaction {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 28  |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52  |     pub fn commit(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     pub fn rollback(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     pub fn recover(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn get_int(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn get_string(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<String> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn set_int(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn set_string(
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub fn size(&mut self, filename: String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     pub fn undo(&mut self, log_record: LogRecord) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 let _ = self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:197:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 let _ = self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]   --> src/buffer_manager.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BufferAbortError` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BufferAbortError {
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] 16 |     #[error("Buffer Abort Error")]
[INFO] [stdout] 17 |     BufferAbortError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BufferAbortError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_id`, `pins`, `txnum`, and `last_save_numbder` are never read
[INFO] [stdout]   --> src/buffer_manager.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Buffer {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     contents: Page,
[INFO] [stdout] 22 |     block_id: Option<BlockId>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 23 |     pins: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     txnum: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     last_save_numbder: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/buffer_manager.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Buffer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(block_size: usize) -> Buffer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn is_pinned(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn assign_to_back(&mut self, block_id: BlockId) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn flush(&mut self) {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 82 |
[INFO] [stdout] 83 |     fn pin(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn unpin(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferManager` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct BufferManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/buffer_manager.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 99  | impl BufferManager {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 100 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn available(&self) -> i32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn unpin(&mut self, buffer: Arc<RwLock<Buffer>>) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn pin(&mut self, block_id: &BlockId) -> Result<Arc<RwLock<Buffer>>, BufferAbortError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn try_to_pin(&mut self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn find_assignable_block(&self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn find_existing_buffer(&self, target_block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     fn choose_unpinned_buffer(&self) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]  --> src/file_manager.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_manager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl BlockId {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `set_int`, `set_bytes`, `get_string`, `set_string`, and `max_length` are never used
[INFO] [stdout]   --> src/file_manager.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Page {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn set_int(&mut self, offset: usize, value: i32) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn set_bytes(&mut self, offset: usize, value: &[u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn get_string(&mut self, offset: usize) -> io::Result<String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn set_string(&mut self, offset: usize, value: String) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn max_length(strlen: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `write`, `length`, `append_new_block`, and `last_block_num` are never used
[INFO] [stdout]    --> src/file_manager.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl FileManager {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 101 |     pub fn new(directory: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn write(&mut self, block_id: &BlockId, page: &mut Page) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn append_new_block(&mut self, filename: &String) -> io::Result<BlockId> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn last_block_num(&mut self, filename: &String) -> io::Result<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogManager` is never constructed
[INFO] [stdout]  --> src/log_manager.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct LogManager {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/log_manager.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl LogManager {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn new(mut file_manager: FileManager, log_file: String) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50  |     pub fn iterator(&mut self) -> io::Result<LogIterator> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55  |     pub fn append_record(&mut self, log_record: &[u8]) -> io::Result<i32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn append_new_block(&mut self) -> io::Result<BlockId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     fn get_boundary(&mut self) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn set_boundary(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn flush(&mut self) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/log_manager.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl LogIterator {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 120 |     pub fn new(file_manager: Arc<Mutex<FileManager>>, block_id: BlockId) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "1c25ef6bf3044740caa3751894e6683a808a79bc4169941c31f83f331e81e30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c25ef6bf3044740caa3751894e6683a808a79bc4169941c31f83f331e81e30c", kill_on_drop: false }`
[INFO] [stdout] 1c25ef6bf3044740caa3751894e6683a808a79bc4169941c31f83f331e81e30c
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0007c30b23eb0c8cd6436d93387e5ab3d5d1087f1b707f015be94e0e4f6b26
[INFO] running `Command { std: "docker" "start" "-a" "2e0007c30b23eb0c8cd6436d93387e5ab3d5d1087f1b707f015be94e0e4f6b26", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/transaction/lock_table.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/transaction/log_record.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log_manager::LogManager`
[INFO] [stdout]  --> src/transaction/log_record.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     log_manager::LogManager,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::transaction::Transaction`
[INFO] [stdout]  --> src/transaction/log_record.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::transaction::Transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LogRecordTrait` and `transaction::Transaction`
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |     log_record::{LogRecord, LogRecordTrait},
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     transaction::Transaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             LogRecordType::CheckPoint => {
[INFO] [stdout]     |             ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 152 |             LogRecordType::Start => {
[INFO] [stdout]     |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 158 |             LogRecordType::Commit => {
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 164 |             LogRecordType::Rollback => {
[INFO] [stdout]     |             ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ ...and 2 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 283 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 232 | /             LogRecord::CheckPoint(record)
[INFO] [stdout] 233 | |             | LogRecord::Commit(record)
[INFO] [stdout] 234 | |             | LogRecord::Start(record)
[INFO] [stdout] 235 | |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     | |_________________________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 246 |               LogRecord::SetInt(record) => {
[INFO] [stdout]     |               ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 264 |               LogRecord::SetString(record) => {
[INFO] [stdout]     |               ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 283 |               _ => todo!(),
[INFO] [stdout]     |               ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/transaction/transaction.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |             LogRecord::CheckPoint(record)
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout] 189 |             | LogRecord::Commit(record)
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout] 190 |             | LogRecord::Start(record)
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout] 191 |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 ~             LogRecord::CheckPoint(_record)
[INFO] [stdout] 189 ~             | LogRecord::Commit(_record)
[INFO] [stdout] 190 ~             | LogRecord::Start(_record)
[INFO] [stdout] 191 ~             | LogRecord::Rollback(_record) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]   --> src/buffer_manager.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BufferAbortError` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BufferAbortError {
[INFO] [stdout]    |          ---------------- variant in this enum
[INFO] [stdout] 16 |     #[error("Buffer Abort Error")]
[INFO] [stdout] 17 |     BufferAbortError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BufferAbortError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_id`, `pins`, `txnum`, and `last_save_numbder` are never read
[INFO] [stdout]   --> src/buffer_manager.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Buffer {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     contents: Page,
[INFO] [stdout] 22 |     block_id: Option<BlockId>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 23 |     pins: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     txnum: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     last_save_numbder: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/buffer_manager.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Buffer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(block_size: usize) -> Buffer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn is_pinned(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn assign_to_back(&mut self, block_id: BlockId) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn flush(&mut self) {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 82 |
[INFO] [stdout] 83 |     fn pin(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn unpin(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferManager` is never constructed
[INFO] [stdout]   --> src/buffer_manager.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct BufferManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/buffer_manager.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 99  | impl BufferManager {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 100 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn available(&self) -> i32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn unpin(&mut self, buffer: Arc<RwLock<Buffer>>) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn pin(&mut self, block_id: &BlockId) -> Result<Arc<RwLock<Buffer>>, BufferAbortError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn try_to_pin(&mut self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn find_assignable_block(&self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn find_existing_buffer(&self, target_block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     fn choose_unpinned_buffer(&self) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]  --> src/file_manager.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_manager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl BlockId {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `write`, `length`, `append_new_block`, and `last_block_num` are never used
[INFO] [stdout]    --> src/file_manager.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl FileManager {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 101 |     pub fn new(directory: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn write(&mut self, block_id: &BlockId, page: &mut Page) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn append_new_block(&mut self, filename: &String) -> io::Result<BlockId> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn last_block_num(&mut self, filename: &String) -> io::Result<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogManager` is never constructed
[INFO] [stdout]  --> src/log_manager.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct LogManager {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/log_manager.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl LogManager {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn new(mut file_manager: FileManager, log_file: String) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50  |     pub fn iterator(&mut self) -> io::Result<LogIterator> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55  |     pub fn append_record(&mut self, log_record: &[u8]) -> io::Result<i32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn append_new_block(&mut self) -> io::Result<BlockId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     fn get_boundary(&mut self) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn set_boundary(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn flush(&mut self) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/log_manager.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl LogIterator {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 120 |     pub fn new(file_manager: Arc<Mutex<FileManager>>, block_id: BlockId) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferList` is never constructed
[INFO] [stdout]  --> src/transaction/buffer_list.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BufferList {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_buffer`, `pin`, `unpin`, and `unpin_all` are never used
[INFO] [stdout]   --> src/transaction/buffer_list.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl BufferList {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(buffer_manager: Arc<Mutex<BufferManager>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get_buffer(&self, block_id: &BlockId) -> Option<&Arc<RwLock<Buffer>>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn unpin_all(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]  --> src/transaction/lock_table.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MAX_TIME: Duration = Duration::from_secs(10);
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table` is never read
[INFO] [stdout]   --> src/transaction/lock_table.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct LockTable {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     table: HashMap<BlockId, i32>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/transaction/lock_table.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl LockTable {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn slock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn xlock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn unlock(&mut self, block_id: &BlockId) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn has_xlock(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn has_other_slocks(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn get_lock_val(&self, block_id: &BlockId) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConcurrentManager` is never constructed
[INFO] [stdout]   --> src/transaction/lock_table.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct ConcurrentManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `slock`, `xlock`, `release`, and `has_lock` are never used
[INFO] [stdout]    --> src/transaction/lock_table.rs:83:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl ConcurrentManager {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 83  |     pub fn new(lock_table: Arc<Mutex<LockTable>>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     pub fn slock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub fn xlock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn release(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn has_lock(&self, block_id: &BlockId) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_txnum` is never used
[INFO] [stdout]    --> src/transaction/log_record.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub trait LogRecordTrait {
[INFO] [stdout]     |           -------------- method in this trait
[INFO] [stdout] 125 |     fn get_txnum(&self) -> i32;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `record_type` is never read
[INFO] [stdout]    --> src/transaction/log_record.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct UpdateRecord<T> {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 134 |     record_type: LogRecordType,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RecoveryManager` is never constructed
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct RecoveryManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `commit`, `rollback`, `recover`, `set_int`, and `set_string` are never used
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl RecoveryManager {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn commit(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn rollback(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn recover(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn set_int(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn set_string(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `TXMUN` is never used
[INFO] [stdout]   --> src/transaction/transaction.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | static TXMUN: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]   --> src/transaction/transaction.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/transaction/transaction.rs:28:12
[INFO] [stdout]     |
[INFO] [stdout] 27  | impl Transaction {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 28  |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52  |     pub fn commit(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     pub fn rollback(&mut self) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     pub fn recover(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn get_int(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn get_string(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<String> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn set_int(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn set_string(
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub fn size(&mut self, filename: String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     pub fn undo(&mut self, log_record: LogRecord) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 let _ = self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:197:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 let _ = self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mydb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/transaction/lock_table.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/transaction/log_record.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log_manager::LogManager`
[INFO] [stdout]  --> src/transaction/log_record.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     log_manager::LogManager,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::transaction::Transaction`
[INFO] [stdout]  --> src/transaction/log_record.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::transaction::Transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LogRecordTrait` and `transaction::Transaction`
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |     log_record::{LogRecord, LogRecordTrait},
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     transaction::Transaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]   --> src/buffer_manager.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `txnum` and `last_save_numbder` are never read
[INFO] [stdout]   --> src/buffer_manager.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Buffer {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     txnum: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     last_save_numbder: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `block_id`, `set_modified`, and `modifying_tx` are never used
[INFO] [stdout]   --> src/buffer_manager.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Buffer {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `log_manager` is never read
[INFO] [stdout]   --> src/buffer_manager.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct BufferManager {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 93 |     file_manager: Arc<Mutex<FileManager>>,
[INFO] [stdout] 94 |     log_manager: Arc<Mutex<LogManager>>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flush_all` is never used
[INFO] [stdout]    --> src/buffer_manager.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 99  | impl BufferManager {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_manager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl BlockId {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `length` is never used
[INFO] [stdout]    --> src/file_manager.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl FileManager {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `flush_with` is never used
[INFO] [stdout]   --> src/log_manager.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl LogManager {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             LogRecordType::CheckPoint => {
[INFO] [stdout]     |             ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 152 |             LogRecordType::Start => {
[INFO] [stdout]     |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 158 |             LogRecordType::Commit => {
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 164 |             LogRecordType::Rollback => {
[INFO] [stdout]     |             ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 222 |             _ => {
[INFO] [stdout]     |             ^ ...and 2 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 283 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/transaction/log_record.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 232 | /             LogRecord::CheckPoint(record)
[INFO] [stdout] 233 | |             | LogRecord::Commit(record)
[INFO] [stdout] 234 | |             | LogRecord::Start(record)
[INFO] [stdout] 235 | |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     | |_________________________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 246 |               LogRecord::SetInt(record) => {
[INFO] [stdout]     |               ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 264 |               LogRecord::SetString(record) => {
[INFO] [stdout]     |               ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 283 |               _ => todo!(),
[INFO] [stdout]     |               ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/transaction/transaction.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |             LogRecord::CheckPoint(record)
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout] 189 |             | LogRecord::Commit(record)
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout] 190 |             | LogRecord::Start(record)
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout] 191 |             | LogRecord::Rollback(record) => {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 ~             LogRecord::CheckPoint(_record)
[INFO] [stdout] 189 ~             | LogRecord::Commit(_record)
[INFO] [stdout] 190 ~             | LogRecord::Start(_record)
[INFO] [stdout] 191 ~             | LogRecord::Rollback(_record) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rval`
[INFO] [stdout]    --> src/transaction/transaction.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let rval = tx4.get_int(&block, 80);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TIME` is never used
[INFO] [stdout]   --> src/buffer_manager.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/file_manager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl BlockId {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `length` is never used
[INFO] [stdout]    --> src/file_manager.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl FileManager {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `record_type` is never read
[INFO] [stdout]    --> src/transaction/log_record.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct UpdateRecord<T> {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 134 |     record_type: LogRecordType,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_set_int` is never used
[INFO] [stdout]    --> src/transaction/log_record.rs:313:8
[INFO] [stdout]     |
[INFO] [stdout] 313 |     fn test_set_int() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `recover` is never used
[INFO] [stdout]   --> src/transaction/recovery_manager.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl RecoveryManager {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn recover(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file_manager` and `buffer_manager` are never read
[INFO] [stdout]   --> src/transaction/transaction.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Transaction {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 18 |     file_manager: Arc<Mutex<FileManager>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 19 |     log_manager: Arc<Mutex<LogManager>>,
[INFO] [stdout] 20 |     buffer_manager: Arc<Mutex<BufferManager>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `recover` and `size` are never used
[INFO] [stdout]    --> src/transaction/transaction.rs:79:12
[INFO] [stdout]     |
[INFO] [stdout] 27  | impl Transaction {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79  |     pub fn recover(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub fn size(&mut self, filename: String) -> anyhow::Result<i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 let _ = self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:197:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 self.pin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 let _ = self.pin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 let _ = self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.unpin(&record.block_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let _ = self.unpin(&record.block_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/transaction/transaction.rs:244:31
[INFO] [stdout]     |
[INFO] [stdout] 244 |             filename: filename.clone().to_string(),
[INFO] [stdout]     |                               ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         tx1.pin(&block);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let _ = tx1.pin(&block);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |         tx1.set_int(&block, 80, 1, false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 249 |         let _ = tx1.set_int(&block, 80, 1, false);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         tx1.set_string(&block, 40, "one".to_string(), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let _ = tx1.set_string(&block, 40, "one".to_string(), false);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         tx1.commit();
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let _ = tx1.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         tx2.pin(&block);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let _ = tx2.pin(&block);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |         tx2.set_int(&block, 80, new_ival, false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let _ = tx2.set_int(&block, 80, new_ival, false);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:266:9
[INFO] [stdout]     |
[INFO] [stdout] 266 |         tx2.set_string(&block, 40, new_sval.to_string(), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 266 |         let _ = tx2.set_string(&block, 40, new_sval.to_string(), false);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |         tx2.commit();
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let _ = tx2.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:275:9
[INFO] [stdout]     |
[INFO] [stdout] 275 |         tx3.pin(&block);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 275 |         let _ = tx3.pin(&block);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         tx3.set_int(&block, 80, 9999, false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let _ = tx3.set_int(&block, 80, 9999, false);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         tx3.rollback();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let _ = tx3.rollback();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |         tx4.pin(&block);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 285 |         let _ = tx4.pin(&block);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/transaction/transaction.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         tx4.commit();
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let _ = tx4.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "2e0007c30b23eb0c8cd6436d93387e5ab3d5d1087f1b707f015be94e0e4f6b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0007c30b23eb0c8cd6436d93387e5ab3d5d1087f1b707f015be94e0e4f6b26", kill_on_drop: false }`
[INFO] [stdout] 2e0007c30b23eb0c8cd6436d93387e5ab3d5d1087f1b707f015be94e0e4f6b26
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ede48c4fc2f2ab06a9181cf68f9bf3d0fdbf3311437bb3981d6b799703c25460
[INFO] running `Command { std: "docker" "start" "-a" "ede48c4fc2f2ab06a9181cf68f9bf3d0fdbf3311437bb3981d6b799703c25460", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]  --> src/transaction/lock_table.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc` and `Mutex`
[INFO] [stderr]  --> src/transaction/log_record.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log_manager::LogManager`
[INFO] [stderr]  --> src/transaction/log_record.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     log_manager::LogManager,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::transaction::Transaction`
[INFO] [stderr]  --> src/transaction/log_record.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::transaction::Transaction;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LogRecordTrait` and `transaction::Transaction`
[INFO] [stderr]   --> src/transaction/recovery_manager.rs:10:29
[INFO] [stderr]    |
[INFO] [stderr] 10 |     log_record::{LogRecord, LogRecordTrait},
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^
[INFO] [stderr] 11 |     transaction::Transaction,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/transaction/log_record.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |             _ => {
[INFO] [stderr]     |             ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/transaction/log_record.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |             LogRecordType::CheckPoint => {
[INFO] [stderr]     |             ------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 152 |             LogRecordType::Start => {
[INFO] [stderr]     |             -------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 158 |             LogRecordType::Commit => {
[INFO] [stderr]     |             --------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 164 |             LogRecordType::Rollback => {
[INFO] [stderr]     |             ----------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 222 |             _ => {
[INFO] [stderr]     |             ^ ...and 2 other patterns collectively make this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/transaction/log_record.rs:283:13
[INFO] [stderr]     |
[INFO] [stderr] 283 |             _ => todo!(),
[INFO] [stderr]     |             ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/transaction/log_record.rs:283:13
[INFO] [stderr]     |
[INFO] [stderr] 232 | /             LogRecord::CheckPoint(record)
[INFO] [stderr] 233 | |             | LogRecord::Commit(record)
[INFO] [stderr] 234 | |             | LogRecord::Start(record)
[INFO] [stderr] 235 | |             | LogRecord::Rollback(record) => {
[INFO] [stderr]     | |_________________________________________- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 246 |               LogRecord::SetInt(record) => {
[INFO] [stderr]     |               ------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 264 |               LogRecord::SetString(record) => {
[INFO] [stderr]     |               ---------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 283 |               _ => todo!(),
[INFO] [stderr]     |               ^ collectively making this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `record`
[INFO] [stderr]    --> src/transaction/transaction.rs:188:35
[INFO] [stderr]     |
[INFO] [stderr] 188 |             LogRecord::CheckPoint(record)
[INFO] [stderr]     |                                   ^^^^^^
[INFO] [stderr] 189 |             | LogRecord::Commit(record)
[INFO] [stderr]     |                                 ^^^^^^
[INFO] [stderr] 190 |             | LogRecord::Start(record)
[INFO] [stderr]     |                                ^^^^^^
[INFO] [stderr] 191 |             | LogRecord::Rollback(record) => {
[INFO] [stderr]     |                                   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]     |
[INFO] [stderr] 188 ~             LogRecord::CheckPoint(_record)
[INFO] [stderr] 189 ~             | LogRecord::Commit(_record)
[INFO] [stderr] 190 ~             | LogRecord::Start(_record)
[INFO] [stderr] 191 ~             | LogRecord::Rollback(_record) => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_TIME` is never used
[INFO] [stderr]   --> src/buffer_manager.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const MAX_TIME: i32 = 10000;
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `BufferAbortError` is never constructed
[INFO] [stderr]   --> src/buffer_manager.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub enum BufferAbortError {
[INFO] [stderr]    |          ---------------- variant in this enum
[INFO] [stderr] 16 |     #[error("Buffer Abort Error")]
[INFO] [stderr] 17 |     BufferAbortError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BufferAbortError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `block_id`, `pins`, `txnum`, and `last_save_numbder` are never read
[INFO] [stderr]   --> src/buffer_manager.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Buffer {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 21 |     contents: Page,
[INFO] [stderr] 22 |     block_id: Option<BlockId>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 23 |     pins: i32,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 24 |     txnum: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 25 |     last_save_numbder: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/buffer_manager.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl Buffer {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 42 |     fn new(block_size: usize) -> Buffer {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 67 |     pub fn is_pinned(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 75 |     fn assign_to_back(&mut self, block_id: BlockId) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 81 |     fn flush(&mut self) {}
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 82 |
[INFO] [stderr] 83 |     fn pin(&mut self) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 |     fn unpin(&mut self) {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BufferManager` is never constructed
[INFO] [stderr]   --> src/buffer_manager.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub struct BufferManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/buffer_manager.rs:100:12
[INFO] [stderr]     |
[INFO] [stderr] 99  | impl BufferManager {
[INFO] [stderr]     | ------------------ associated items in this implementation
[INFO] [stderr] 100 |     pub fn new(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 116 |     pub fn available(&self) -> i32 {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 |     pub fn unpin(&mut self, buffer: Arc<RwLock<Buffer>>) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 148 |     pub fn pin(&mut self, block_id: &BlockId) -> Result<Arc<RwLock<Buffer>>, BufferAbortError> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     fn try_to_pin(&mut self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     fn find_assignable_block(&self, block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     fn find_existing_buffer(&self, target_block_id: &BlockId) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 196 |     fn choose_unpinned_buffer(&self) -> Option<Arc<RwLock<Buffer>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PAGE_SIZE` is never used
[INFO] [stderr]  --> src/file_manager.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/file_manager.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl BlockId {
[INFO] [stderr]    | ------------ associated function in this implementation
[INFO] [stderr] 19 |     fn new(filename: &str, block_number: i32) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `write`, `length`, `append_new_block`, and `last_block_num` are never used
[INFO] [stderr]    --> src/file_manager.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 100 | impl FileManager {
[INFO] [stderr]     | ---------------- associated items in this implementation
[INFO] [stderr] 101 |     pub fn new(directory: String) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     pub fn write(&mut self, block_id: &BlockId, page: &mut Page) -> io::Result<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 146 |     pub fn append_new_block(&mut self, filename: &String) -> io::Result<BlockId> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn last_block_num(&mut self, filename: &String) -> io::Result<usize> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LogManager` is never constructed
[INFO] [stderr]  --> src/log_manager.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct LogManager {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/log_manager.rs:18:12
[INFO] [stderr]     |
[INFO] [stderr] 17  | impl LogManager {
[INFO] [stderr]     | --------------- associated items in this implementation
[INFO] [stderr] 18  |     pub fn new(mut file_manager: FileManager, log_file: String) -> io::Result<Self> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 43  |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 50  |     pub fn iterator(&mut self) -> io::Result<LogIterator> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55  |     pub fn append_record(&mut self, log_record: &[u8]) -> io::Result<i32> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 75  |     fn append_new_block(&mut self) -> io::Result<BlockId> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 91  |     fn get_boundary(&mut self) -> i32 {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 95  |     fn set_boundary(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     fn flush(&mut self) -> io::Result<()> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/log_manager.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 119 | impl LogIterator {
[INFO] [stderr]     | ---------------- associated function in this implementation
[INFO] [stderr] 120 |     pub fn new(file_manager: Arc<Mutex<FileManager>>, block_id: BlockId) -> io::Result<Self> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BufferList` is never constructed
[INFO] [stderr]  --> src/transaction/buffer_list.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct BufferList {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get_buffer`, `pin`, `unpin`, and `unpin_all` are never used
[INFO] [stderr]   --> src/transaction/buffer_list.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl BufferList {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 13 |     pub fn new(buffer_manager: Arc<Mutex<BufferManager>>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub fn get_buffer(&self, block_id: &BlockId) -> Option<&Arc<RwLock<Buffer>>> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn unpin_all(&mut self) -> anyhow::Result<()> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_TIME` is never used
[INFO] [stderr]  --> src/transaction/lock_table.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const MAX_TIME: Duration = Duration::from_secs(10);
[INFO] [stderr]   |       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `table` is never read
[INFO] [stderr]   --> src/transaction/lock_table.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct LockTable {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 10 |     table: HashMap<BlockId, i32>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/transaction/lock_table.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | impl LockTable {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] 22 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn slock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     fn xlock(&mut self, block_id: &BlockId) -> Result<(), LockAbortError> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     fn unlock(&mut self, block_id: &BlockId) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     fn has_xlock(&self, block_id: &BlockId) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     fn has_other_slocks(&self, block_id: &BlockId) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     fn get_lock_val(&self, block_id: &BlockId) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ConcurrentManager` is never constructed
[INFO] [stderr]   --> src/transaction/lock_table.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub struct ConcurrentManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `slock`, `xlock`, `release`, and `has_lock` are never used
[INFO] [stderr]    --> src/transaction/lock_table.rs:83:12
[INFO] [stderr]     |
[INFO] [stderr] 82  | impl ConcurrentManager {
[INFO] [stderr]     | ---------------------- associated items in this implementation
[INFO] [stderr] 83  |     pub fn new(lock_table: Arc<Mutex<LockTable>>) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 88  |     pub fn slock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 96  |     pub fn xlock(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     pub fn release(&mut self) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 113 |     fn has_lock(&self, block_id: &BlockId) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_txnum` is never used
[INFO] [stderr]    --> src/transaction/log_record.rs:125:8
[INFO] [stderr]     |
[INFO] [stderr] 124 | pub trait LogRecordTrait {
[INFO] [stderr]     |           -------------- method in this trait
[INFO] [stderr] 125 |     fn get_txnum(&self) -> i32;
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `record_type` is never read
[INFO] [stderr]    --> src/transaction/log_record.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub struct UpdateRecord<T> {
[INFO] [stderr]     |            ------------ field in this struct
[INFO] [stderr] 134 |     record_type: LogRecordType,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RecoveryManager` is never constructed
[INFO] [stderr]   --> src/transaction/recovery_manager.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct RecoveryManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `commit`, `rollback`, `recover`, `set_int`, and `set_string` are never used
[INFO] [stderr]   --> src/transaction/recovery_manager.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | impl RecoveryManager {
[INFO] [stderr]    | -------------------- associated items in this implementation
[INFO] [stderr] 22 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 43 |     pub fn commit(&self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn rollback(&self) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     pub fn recover(&self) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 82 |     pub fn set_int(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |     pub fn set_string(&self, buf: Arc<RwLock<Buffer>>, offset: i32) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static `TXMUN` is never used
[INFO] [stderr]   --> src/transaction/transaction.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | static TXMUN: AtomicUsize = AtomicUsize::new(0);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Transaction` is never constructed
[INFO] [stderr]   --> src/transaction/transaction.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Transaction {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/transaction/transaction.rs:28:12
[INFO] [stderr]     |
[INFO] [stderr] 27  | impl Transaction {
[INFO] [stderr]     | ---------------- associated items in this implementation
[INFO] [stderr] 28  |     pub fn new(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 52  |     pub fn commit(&mut self) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59  |     pub fn rollback(&mut self) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 79  |     pub fn recover(&mut self) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     pub fn pin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     pub fn unpin(&mut self, block_id: &BlockId) -> anyhow::Result<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 110 |     pub fn get_int(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<i32> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 120 |     pub fn get_string(&mut self, block_id: &BlockId, offset: i32) -> anyhow::Result<String> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 132 |     pub fn set_int(
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 154 |     pub fn set_string(
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 176 |     pub fn size(&mut self, filename: String) -> anyhow::Result<i32> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 186 |     pub fn undo(&mut self, log_record: LogRecord) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:195:17
[INFO] [stderr]     |
[INFO] [stderr] 195 |                 self.pin(&record.block_id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 195 |                 let _ = self.pin(&record.block_id);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:196:17
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 let _ = self.set_int(&record.block_id, record.offset, record.value, false);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:197:17
[INFO] [stderr]     |
[INFO] [stderr] 197 |                 self.unpin(&record.block_id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 197 |                 let _ = self.unpin(&record.block_id);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:200:17
[INFO] [stderr]     |
[INFO] [stderr] 200 |                 self.pin(&record.block_id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 200 |                 let _ = self.pin(&record.block_id);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:201:17
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 let _ = self.set_string(&record.block_id, record.offset, record.value, false);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 self.unpin(&record.block_id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 let _ = self.unpin(&record.block_id);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rval`
[INFO] [stderr]    --> src/transaction/transaction.rs:286:13
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let rval = tx4.get_int(&block, 80);
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rval`
[INFO] [stderr] 
[INFO] [stderr] warning: method `length` is never used
[INFO] [stderr]    --> src/file_manager.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 100 | impl FileManager {
[INFO] [stderr]     | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn length(&mut self, filename: &String) -> anyhow::Result<i32> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_set_int` is never used
[INFO] [stderr]    --> src/transaction/log_record.rs:313:8
[INFO] [stderr]     |
[INFO] [stderr] 313 |     fn test_set_int() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `recover` is never used
[INFO] [stderr]   --> src/transaction/recovery_manager.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | impl RecoveryManager {
[INFO] [stderr]    | -------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 69 |     pub fn recover(&self) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `file_manager` and `buffer_manager` are never read
[INFO] [stderr]   --> src/transaction/transaction.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Transaction {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 18 |     file_manager: Arc<Mutex<FileManager>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 19 |     log_manager: Arc<Mutex<LogManager>>,
[INFO] [stderr] 20 |     buffer_manager: Arc<Mutex<BufferManager>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `recover` and `size` are never used
[INFO] [stderr]    --> src/transaction/transaction.rs:79:12
[INFO] [stderr]     |
[INFO] [stderr] 27  | impl Transaction {
[INFO] [stderr]     | ---------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 79  |     pub fn recover(&mut self) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 176 |     pub fn size(&mut self, filename: String) -> anyhow::Result<i32> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/transaction/transaction.rs:244:31
[INFO] [stderr]     |
[INFO] [stderr] 244 |             filename: filename.clone().to_string(),
[INFO] [stderr]     |                               ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         tx1.pin(&block);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 248 |         let _ = tx1.pin(&block);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 |         tx1.set_int(&block, 80, 1, false);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let _ = tx1.set_int(&block, 80, 1, false);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:250:9
[INFO] [stderr]     |
[INFO] [stderr] 250 |         tx1.set_string(&block, 40, "one".to_string(), false);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let _ = tx1.set_string(&block, 40, "one".to_string(), false);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         tx1.commit();
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 251 |         let _ = tx1.commit();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |         tx2.pin(&block);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let _ = tx2.pin(&block);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 |         tx2.set_int(&block, 80, new_ival, false);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let _ = tx2.set_int(&block, 80, new_ival, false);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |         tx2.set_string(&block, 40, new_sval.to_string(), false);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 266 |         let _ = tx2.set_string(&block, 40, new_sval.to_string(), false);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         tx2.commit();
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 267 |         let _ = tx2.commit();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:275:9
[INFO] [stderr]     |
[INFO] [stderr] 275 |         tx3.pin(&block);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let _ = tx3.pin(&block);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         tx3.set_int(&block, 80, 9999, false);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 276 |         let _ = tx3.set_int(&block, 80, 9999, false);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |         tx3.rollback();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let _ = tx3.rollback();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         tx4.pin(&block);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 285 |         let _ = tx4.pin(&block);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/transaction/transaction.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         tx4.commit();
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 287 |         let _ = tx4.commit();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mydb` (lib) generated 40 warnings (run `cargo fix --lib -p mydb` to apply 5 suggestions)
[INFO] [stderr] warning: `mydb` (lib test) generated 37 warnings (17 duplicates) (run `cargo fix --lib -p mydb --tests` to apply 1 suggestion)
[INFO] [stderr] warning: fields `txnum` and `last_save_numbder` are never read
[INFO] [stderr]   --> src/buffer_manager.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Buffer {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 24 |     txnum: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 25 |     last_save_numbder: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `block_id`, `set_modified`, and `modifying_tx` are never used
[INFO] [stderr]   --> src/buffer_manager.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl Buffer {
[INFO] [stderr]    | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 53 |     pub fn block_id(&self) -> Option<&BlockId> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn set_modified(&mut self, txnum: i32, last_save_number: i32) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 71 |     pub fn modifying_tx(&self) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `log_manager` is never read
[INFO] [stderr]   --> src/buffer_manager.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub struct BufferManager {
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] 93 |     file_manager: Arc<Mutex<FileManager>>,
[INFO] [stderr] 94 |     log_manager: Arc<Mutex<LogManager>>,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `flush_all` is never used
[INFO] [stderr]    --> src/buffer_manager.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 99  | impl BufferManager {
[INFO] [stderr]     | ------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 120 |     pub fn flush_all(&mut self, txnum: i32) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `flush_with` is never used
[INFO] [stderr]   --> src/log_manager.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl LogManager {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 43 |     pub fn flush_with(&mut self, lsn: i32) -> io::Result<()> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mydb` (bin "mydb" test) generated 8 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mydb-5f54e8ab2324ab99)
[INFO] [stdout] test transaction::log_record::tests::test_set_string ... ok
[INFO] [stdout] test buffer_manager::tests::buffer_manager ... FAILED
[INFO] [stdout] test file_manager::tests::disk ... FAILED
[INFO] [stdout] test transaction::transaction::tests::transaction ... FAILED
[INFO] [stdout] test log_manager::tests::log ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- buffer_manager::tests::buffer_manager stdout ----
[INFO] [stdout] thread 'buffer_manager::tests::buffer_manager' panicked at src/buffer_manager.rs:227:78:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: NotFound, error: PathError { path: "/opt/rustwide/workdir/./data/.tmptMS9nd", err: Os { code: 2, kind: NotFound, message: "No such file or directory" } } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c4f6a399e2a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c4f6a399e2a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c4f6a3bfa13 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c4f6a3bfa13 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5c4f6a396da3 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5c4f6a399c72 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c4f6a39b2ad - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5c4f6a39b0b7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5c4f6a355e67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5c4f6a355e67 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c4f6a39b958 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5c4f6a39b958 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5c4f6a39b71a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5c4f6a39a309 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5c4f6a39b3ac - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5c4f6a2e8bb0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5c4f6a2e8ff6 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c4f6a309e52 - core::result::Result<T,E>::unwrap::h5a0b399ab6db7fa9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c4f6a309e52 - mydb::buffer_manager::tests::buffer_manager::h638ee45d9dc36744
[INFO] [stdout]                                at /opt/rustwide/workdir/src/buffer_manager.rs:227:28
[INFO] [stdout]   21:     0x5c4f6a309d67 - mydb::buffer_manager::tests::buffer_manager::{{closure}}::h5a07ad285aec0511
[INFO] [stdout]                                at /opt/rustwide/workdir/src/buffer_manager.rs:225:24
[INFO] [stdout]   22:     0x5c4f6a3103f6 - core::ops::function::FnOnce::call_once::h101611ea3f640470
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c4f6a35a98b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c4f6a35a98b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c4f6a35a378 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c4f6a35a378 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c4f6a35a378 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5c4f6a35a378 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5c4f6a35a378 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c4f6a35a378 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c4f6a35a378 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c4f6a31de1a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c4f6a31de1a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c4f6a321794 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c4f6a321794 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5c4f6a321794 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5c4f6a321794 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c4f6a321794 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   42:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   43:     0x5c4f6a39f98b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7efc902a7ac3 - <unknown>
[INFO] [stdout]   45:     0x7efc90338a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- file_manager::tests::disk stdout ----
[INFO] [stdout] thread 'file_manager::tests::disk' panicked at src/file_manager.rs:176:62:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: NotFound, error: PathError { path: "/opt/rustwide/workdir/./data/.tmpGqjTqn", err: Os { code: 2, kind: NotFound, message: "No such file or directory" } } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c4f6a399e2a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c4f6a399e2a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c4f6a3bfa13 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c4f6a3bfa13 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5c4f6a396da3 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5c4f6a399c72 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c4f6a39b2ad - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5c4f6a39b0b7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5c4f6a355e67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5c4f6a355e67 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c4f6a39b958 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5c4f6a39b958 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5c4f6a39b71a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5c4f6a39a309 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5c4f6a39b3ac - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5c4f6a2e8bb0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5c4f6a2e8ff6 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c4f6a304665 - core::result::Result<T,E>::unwrap::h5a0b399ab6db7fa9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c4f6a304665 - mydb::file_manager::tests::disk::h40b793c0f58493d7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_manager.rs:176:24
[INFO] [stdout]   21:     0x5c4f6a304597 - mydb::file_manager::tests::disk::{{closure}}::hb12adc6f06039029
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_manager.rs:174:14
[INFO] [stdout]   22:     0x5c4f6a3103b6 - core::ops::function::FnOnce::call_once::h02cd798c4656729f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c4f6a35a98b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c4f6a35a98b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c4f6a35a378 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c4f6a35a378 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c4f6a35a378 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5c4f6a35a378 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5c4f6a35a378 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c4f6a35a378 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c4f6a35a378 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c4f6a31de1a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c4f6a31de1a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c4f6a321794 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c4f6a321794 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5c4f6a321794 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5c4f6a321794 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c4f6a321794 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   42:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   43:     0x5c4f6a39f98b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7efc902a7ac3 - <unknown>
[INFO] [stdout]   45:     0x7efc90338a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- transaction::transaction::tests::transaction stdout ----
[INFO] [stdout] thread 'transaction::transaction::tests::transaction' panicked at src/transaction/transaction.rs:217:78:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: NotFound, error: PathError { path: "/opt/rustwide/workdir/./data/.tmpMUUJs2", err: Os { code: 2, kind: NotFound, message: "No such file or directory" } } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c4f6a399e2a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c4f6a399e2a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c4f6a3bfa13 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c4f6a3bfa13 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5c4f6a396da3 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5c4f6a399c72 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c4f6a39b2ad - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5c4f6a39b0b7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5c4f6a355e67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5c4f6a355e67 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c4f6a39b958 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5c4f6a39b958 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5c4f6a39b71a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5c4f6a39a309 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5c4f6a39b3ac - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5c4f6a2e8bb0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5c4f6a2e8ff6 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c4f6a31765a - core::result::Result<T,E>::unwrap::h5a0b399ab6db7fa9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c4f6a31765a - mydb::transaction::transaction::tests::transaction::h8ba2bbb91e886352
[INFO] [stdout]                                at /opt/rustwide/workdir/src/transaction/transaction.rs:217:28
[INFO] [stdout]   21:     0x5c4f6a317507 - mydb::transaction::transaction::tests::transaction::{{closure}}::h4a9a8a6e8612a9c8
[INFO] [stdout]                                at /opt/rustwide/workdir/src/transaction/transaction.rs:215:21
[INFO] [stdout]   22:     0x5c4f6a310a56 - core::ops::function::FnOnce::call_once::hf0303953989300ae
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c4f6a35a98b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c4f6a35a98b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c4f6a35a378 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c4f6a35a378 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c4f6a35a378 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5c4f6a35a378 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5c4f6a35a378 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c4f6a35a378 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c4f6a35a378 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c4f6a31de1a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c4f6a31de1a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c4f6a321794 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c4f6a321794 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5c4f6a321794 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5c4f6a321794 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c4f6a321794 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   42:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   43:     0x5c4f6a39f98b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7efc902a7ac3 - <unknown>
[INFO] [stdout]   45:     0x7efc90338a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- log_manager::tests::log stdout ----
[INFO] [stdout] thread 'log_manager::tests::log' panicked at src/log_manager.rs:178:62:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: NotFound, error: PathError { path: "/opt/rustwide/workdir/./data/.tmppj9kuF", err: Os { code: 2, kind: NotFound, message: "No such file or directory" } } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c4f6a399e2a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c4f6a399e2a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c4f6a399e2a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c4f6a3bfa13 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c4f6a3bfa13 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5c4f6a396da3 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5c4f6a399c72 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c4f6a39b2ad - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5c4f6a39b0b7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5c4f6a355e67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5c4f6a355e67 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c4f6a39b958 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5c4f6a39b958 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5c4f6a39b71a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5c4f6a39a309 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5c4f6a39b3ac - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5c4f6a2e8bb0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5c4f6a2e8ff6 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c4f6a30b075 - core::result::Result<T,E>::unwrap::h5a0b399ab6db7fa9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c4f6a30b075 - mydb::log_manager::tests::log::h8c14142f25611f3e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/log_manager.rs:178:24
[INFO] [stdout]   21:     0x5c4f6a30afa7 - mydb::log_manager::tests::log::{{closure}}::h986f77eca61dfba9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/log_manager.rs:176:13
[INFO] [stdout]   22:     0x5c4f6a310536 - core::ops::function::FnOnce::call_once::h30aee9c840a7aca2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c4f6a35a98b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c4f6a35a98b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c4f6a35a378 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c4f6a35a378 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c4f6a35a378 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5c4f6a35a378 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5c4f6a35a378 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c4f6a35a378 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c4f6a35a378 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c4f6a31de1a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c4f6a31de1a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c4f6a321794 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c4f6a321794 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5c4f6a321794 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5c4f6a321794 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c4f6a321794 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c4f6a321794 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   42:     0x5c4f6a39f98b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   43:     0x5c4f6a39f98b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7efc902a7ac3 - <unknown>
[INFO] [stdout]   45:     0x7efc90338a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     buffer_manager::tests::buffer_manager
[INFO] [stdout]     file_manager::tests::disk
[INFO] [stdout]     log_manager::tests::log
[INFO] [stdout]     transaction::transaction::tests::transaction
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "ede48c4fc2f2ab06a9181cf68f9bf3d0fdbf3311437bb3981d6b799703c25460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ede48c4fc2f2ab06a9181cf68f9bf3d0fdbf3311437bb3981d6b799703c25460", kill_on_drop: false }`
[INFO] [stdout] ede48c4fc2f2ab06a9181cf68f9bf3d0fdbf3311437bb3981d6b799703c25460
