[INFO] cloning repository https://github.com/liamwhite/dash
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liamwhite/dash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliamwhite%2Fdash"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliamwhite%2Fdash'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 817a4294140033f7488caaa131ea8e5d995f573a
[INFO] testing liamwhite/dash against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliamwhite%2Fdash" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liamwhite/dash on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/liamwhite/dash
[INFO] finished tweaking git repo https://github.com/liamwhite/dash
[INFO] tweaked toml for git repo https://github.com/liamwhite/dash written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/liamwhite/dash already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 483f0386118a38183692bf13c0185a16affad965a6db30470ec31836d709d929
[INFO] running `"docker" "start" "-a" "483f0386118a38183692bf13c0185a16affad965a6db30470ec31836d709d929"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling serde-big-array v0.3.0
[INFO] [stderr]    Compiling dash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Drop`
[INFO] [stderr]  --> src/database/memory.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Drop;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/database/wal.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let position = self.file.seek(SeekFrom::Start(offset))?;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]    --> src/database/transaction.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |         if let Some(list) = self.file_events.get(&file) {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_ref`
[INFO] [stderr]    --> src/database/transaction.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |         if let Some(file_ref) = self.files.get(&file) {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:145:47
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:162:47
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:162:67
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:162:81
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:166:44
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:166:64
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:166:78
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:42
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/wal.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WalOffset`
[INFO] [stderr]   --> src/database/wal.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type WalOffset = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WalReference`
[INFO] [stderr]   --> src/database/wal.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct WalReference {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/wal.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn new(path: &String) -> Result<WalReference> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `modify_page`
[INFO] [stderr]   --> src/database/wal.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn modify_page(&mut self, transaction_id: u64, file_id: u64, page_id: u64, undo: &[u8; 4096], redo: &[u8; 4096]) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `commit_transaction`
[INFO] [stderr]   --> src/database/wal.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn commit_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `abort_transaction`
[INFO] [stderr]   --> src/database/wal.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn abort_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extend_file`
[INFO] [stderr]   --> src/database/wal.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn extend_file(&mut self, transaction_id: u64, file_id: u64, extend_amt: i64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_file`
[INFO] [stderr]    --> src/database/wal.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn create_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delete_file`
[INFO] [stderr]    --> src/database/wal.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn delete_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_entry`
[INFO] [stderr]    --> src/database/wal.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn read_entry(&mut self, offset: WalOffset) -> Result<WalEvent> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate`
[INFO] [stderr]    --> src/database/wal.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn truncate(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/database/transaction.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `TransactionId`
[INFO] [stderr]   --> src/database/transaction.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type TransactionId = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionWalOffset`
[INFO] [stderr]   --> src/database/transaction.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct TransactionWalOffset {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionManager`
[INFO] [stderr]   --> src/database/transaction.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct TransactionManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/transaction.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(base_path: &String) -> Result<TransactionManager> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `begin_transaction`
[INFO] [stderr]   --> src/database/transaction.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn begin_transaction(&mut self) -> Result<TransactionId> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_page`
[INFO] [stderr]    --> src/database/transaction.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn read_page(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_page`
[INFO] [stderr]    --> src/database/transaction.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn write_page(&mut self, txn: TransactionId, file: FileId, offset: PageId, new_page: &[u8; 4096]) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wal`
[INFO] [stderr]    --> src/database/transaction.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn wal(&mut self) -> &mut WalReference {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `file_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `page_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_undo_cache`
[INFO] [stderr]    --> src/database/transaction.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_file`
[INFO] [stderr]    --> src/database/transaction.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn get_page_from_file(&mut self, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_redo_page_from_wal_event`
[INFO] [stderr]    --> src/database/transaction.rs:193:5
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_redo_page_from_wal_event(&mut self, wal_offset: WalOffset) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_page_event`
[INFO] [stderr]    --> src/database/transaction.rs:202:5
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn add_page_event(&mut self, txn: TransactionId, file: FileId, offset: PageId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_event_to_transaction_list`
[INFO] [stderr]    --> src/database/transaction.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn add_event_to_transaction_list(&mut self, txn: TransactionId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/checkpoint.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_wal_event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checkpoint_step`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `crash_recover`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/memory.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MemoryProxy`
[INFO] [stderr]  --> src/database/memory.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct MemoryProxy<'a> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/memory.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(txn: TransactionId, file: FileId, manager: &'a mut TransactionManager) -> MemoryProxy<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_aligned`
[INFO] [stderr]   --> src/database/memory.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn read_aligned(&mut self, address: usize, size: usize) -> Result<Vec<u8>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 52 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.96s
[INFO] running `"docker" "inspect" "483f0386118a38183692bf13c0185a16affad965a6db30470ec31836d709d929"`
[INFO] running `"docker" "rm" "-f" "483f0386118a38183692bf13c0185a16affad965a6db30470ec31836d709d929"`
[INFO] [stdout] 483f0386118a38183692bf13c0185a16affad965a6db30470ec31836d709d929
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b2d45af4a508684eee56071979d680ca0a5360e927573a7d6d4ad668fc70e225
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b2d45af4a508684eee56071979d680ca0a5360e927573a7d6d4ad668fc70e225"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling dash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Drop`
[INFO] [stderr]  --> src/database/memory.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Drop;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/database/wal.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let position = self.file.seek(SeekFrom::Start(offset))?;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]    --> src/database/transaction.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |         if let Some(list) = self.file_events.get(&file) {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_ref`
[INFO] [stderr]    --> src/database/transaction.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |         if let Some(file_ref) = self.files.get(&file) {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:145:47
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:162:47
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:162:67
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:162:81
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:166:44
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:166:64
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:166:78
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:42
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/wal.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WalOffset`
[INFO] [stderr]   --> src/database/wal.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type WalOffset = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WalReference`
[INFO] [stderr]   --> src/database/wal.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct WalReference {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/wal.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn new(path: &String) -> Result<WalReference> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `modify_page`
[INFO] [stderr]   --> src/database/wal.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn modify_page(&mut self, transaction_id: u64, file_id: u64, page_id: u64, undo: &[u8; 4096], redo: &[u8; 4096]) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `commit_transaction`
[INFO] [stderr]   --> src/database/wal.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn commit_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `abort_transaction`
[INFO] [stderr]   --> src/database/wal.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn abort_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extend_file`
[INFO] [stderr]   --> src/database/wal.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn extend_file(&mut self, transaction_id: u64, file_id: u64, extend_amt: i64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_file`
[INFO] [stderr]    --> src/database/wal.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn create_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delete_file`
[INFO] [stderr]    --> src/database/wal.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn delete_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_entry`
[INFO] [stderr]    --> src/database/wal.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn read_entry(&mut self, offset: WalOffset) -> Result<WalEvent> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate`
[INFO] [stderr]    --> src/database/wal.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn truncate(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/database/transaction.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `TransactionId`
[INFO] [stderr]   --> src/database/transaction.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type TransactionId = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionWalOffset`
[INFO] [stderr]   --> src/database/transaction.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct TransactionWalOffset {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionManager`
[INFO] [stderr]   --> src/database/transaction.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct TransactionManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/transaction.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(base_path: &String) -> Result<TransactionManager> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `begin_transaction`
[INFO] [stderr]   --> src/database/transaction.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn begin_transaction(&mut self) -> Result<TransactionId> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_page`
[INFO] [stderr]    --> src/database/transaction.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn read_page(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_page`
[INFO] [stderr]    --> src/database/transaction.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn write_page(&mut self, txn: TransactionId, file: FileId, offset: PageId, new_page: &[u8; 4096]) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wal`
[INFO] [stderr]    --> src/database/transaction.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn wal(&mut self) -> &mut WalReference {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `file_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `page_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_undo_cache`
[INFO] [stderr]    --> src/database/transaction.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_file`
[INFO] [stderr]    --> src/database/transaction.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn get_page_from_file(&mut self, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_redo_page_from_wal_event`
[INFO] [stderr]    --> src/database/transaction.rs:193:5
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_redo_page_from_wal_event(&mut self, wal_offset: WalOffset) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_page_event`
[INFO] [stderr]    --> src/database/transaction.rs:202:5
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn add_page_event(&mut self, txn: TransactionId, file: FileId, offset: PageId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_event_to_transaction_list`
[INFO] [stderr]    --> src/database/transaction.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn add_event_to_transaction_list(&mut self, txn: TransactionId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/checkpoint.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_wal_event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checkpoint_step`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `crash_recover`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/memory.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MemoryProxy`
[INFO] [stderr]  --> src/database/memory.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct MemoryProxy<'a> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/memory.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(txn: TransactionId, file: FileId, manager: &'a mut TransactionManager) -> MemoryProxy<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_aligned`
[INFO] [stderr]   --> src/database/memory.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn read_aligned(&mut self, address: usize, size: usize) -> Result<Vec<u8>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 52 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "b2d45af4a508684eee56071979d680ca0a5360e927573a7d6d4ad668fc70e225"`
[INFO] running `"docker" "rm" "-f" "b2d45af4a508684eee56071979d680ca0a5360e927573a7d6d4ad668fc70e225"`
[INFO] [stdout] b2d45af4a508684eee56071979d680ca0a5360e927573a7d6d4ad668fc70e225
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 3ee7173aa00cbbd22b3199deb000c8c41b7f0144bfdd824e4073ee637ad86f72
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3ee7173aa00cbbd22b3199deb000c8c41b7f0144bfdd824e4073ee637ad86f72"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Drop`
[INFO] [stderr]  --> src/database/memory.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Drop;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/database/wal.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let position = self.file.seek(SeekFrom::Start(offset))?;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]    --> src/database/transaction.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |         if let Some(list) = self.file_events.get(&file) {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_ref`
[INFO] [stderr]    --> src/database/transaction.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |         if let Some(file_ref) = self.files.get(&file) {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:145:47
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:162:47
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:162:67
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:162:81
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |                                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `txn`
[INFO] [stderr]    --> src/database/transaction.rs:166:44
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_txn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/database/transaction.rs:166:64
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/database/transaction.rs:166:78
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:42
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/wal.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WalOffset`
[INFO] [stderr]   --> src/database/wal.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type WalOffset = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WalReference`
[INFO] [stderr]   --> src/database/wal.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct WalReference {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/wal.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn new(path: &String) -> Result<WalReference> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `modify_page`
[INFO] [stderr]   --> src/database/wal.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn modify_page(&mut self, transaction_id: u64, file_id: u64, page_id: u64, undo: &[u8; 4096], redo: &[u8; 4096]) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `commit_transaction`
[INFO] [stderr]   --> src/database/wal.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn commit_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `abort_transaction`
[INFO] [stderr]   --> src/database/wal.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn abort_transaction(&mut self, transaction_id: u64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extend_file`
[INFO] [stderr]   --> src/database/wal.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn extend_file(&mut self, transaction_id: u64, file_id: u64, extend_amt: i64) -> Result<WalOffset> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_file`
[INFO] [stderr]    --> src/database/wal.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn create_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delete_file`
[INFO] [stderr]    --> src/database/wal.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn delete_file(&mut self, transaction_id: u64, file_id: u64) -> Result<WalOffset> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_entry`
[INFO] [stderr]    --> src/database/wal.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn read_entry(&mut self, offset: WalOffset) -> Result<WalEvent> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate`
[INFO] [stderr]    --> src/database/wal.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn truncate(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/database/transaction.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `TransactionId`
[INFO] [stderr]   --> src/database/transaction.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type TransactionId = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionWalOffset`
[INFO] [stderr]   --> src/database/transaction.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct TransactionWalOffset {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TransactionManager`
[INFO] [stderr]   --> src/database/transaction.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct TransactionManager {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/transaction.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(base_path: &String) -> Result<TransactionManager> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `begin_transaction`
[INFO] [stderr]   --> src/database/transaction.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn begin_transaction(&mut self) -> Result<TransactionId> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_page`
[INFO] [stderr]    --> src/database/transaction.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn read_page(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_page`
[INFO] [stderr]    --> src/database/transaction.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn write_page(&mut self, txn: TransactionId, file: FileId, offset: PageId, new_page: &[u8; 4096]) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wal`
[INFO] [stderr]    --> src/database/transaction.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn wal(&mut self) -> &mut WalReference {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `file_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn file_exists_for_transaction(&mut self, txn: TransactionId, file: FileId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `page_exists_for_transaction`
[INFO] [stderr]    --> src/database/transaction.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn page_exists_for_transaction(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Result<bool> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_undo_cache`
[INFO] [stderr]    --> src/database/transaction.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_page_from_undo_cache(&mut self, txn: TransactionId, file: FileId, offset: PageId) -> Option<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_page_from_file`
[INFO] [stderr]    --> src/database/transaction.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn get_page_from_file(&mut self, file: FileId, offset: PageId) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_redo_page_from_wal_event`
[INFO] [stderr]    --> src/database/transaction.rs:193:5
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_redo_page_from_wal_event(&mut self, wal_offset: WalOffset) -> Result<[u8; 4096]> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_page_event`
[INFO] [stderr]    --> src/database/transaction.rs:202:5
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn add_page_event(&mut self, txn: TransactionId, file: FileId, offset: PageId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_event_to_transaction_list`
[INFO] [stderr]    --> src/database/transaction.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn add_event_to_transaction_list(&mut self, txn: TransactionId, wal_offset: WalOffset) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/checkpoint.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_wal_event`
[INFO] [stderr]  --> src/database/checkpoint.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn apply_wal_event(event: &WalEvent, manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checkpoint_step`
[INFO] [stderr]   --> src/database/checkpoint.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn checkpoint_step(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `crash_recover`
[INFO] [stderr]   --> src/database/checkpoint.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn crash_recover(manager: &mut TransactionManager) -> Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/database/memory.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Result<T> = std::result::Result<T, Box<dyn Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MemoryProxy`
[INFO] [stderr]  --> src/database/memory.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct MemoryProxy<'a> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/database/memory.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(txn: TransactionId, file: FileId, manager: &'a mut TransactionManager) -> MemoryProxy<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_aligned`
[INFO] [stderr]   --> src/database/memory.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn read_aligned(&mut self, address: usize, size: usize) -> Result<Vec<u8>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 52 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dash-336342a43c06aed0
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3ee7173aa00cbbd22b3199deb000c8c41b7f0144bfdd824e4073ee637ad86f72"`
[INFO] running `"docker" "rm" "-f" "3ee7173aa00cbbd22b3199deb000c8c41b7f0144bfdd824e4073ee637ad86f72"`
[INFO] [stdout] 3ee7173aa00cbbd22b3199deb000c8c41b7f0144bfdd824e4073ee637ad86f72