[INFO] cloning repository https://github.com/owolabioromidayo/yugodb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/owolabioromidayo/yugodb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowolabioromidayo%2Fyugodb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowolabioromidayo%2Fyugodb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 740b72f08b75472aeea11041356e0ecf91555bb0
[INFO] checking owolabioromidayo/yugodb against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowolabioromidayo%2Fyugodb" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/owolabioromidayo/yugodb on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/owolabioromidayo/yugodb
[INFO] finished tweaking git repo https://github.com/owolabioromidayo/yugodb
[INFO] tweaked toml for git repo https://github.com/owolabioromidayo/yugodb written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/owolabioromidayo/yugodb 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8380f6128d347966e5f0a584a5d9b8109bc54df20461a6ae28675f4ee678718
[INFO] running `Command { std: "docker" "start" "-a" "e8380f6128d347966e5f0a584a5d9b8109bc54df20461a6ae28675f4ee678718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8380f6128d347966e5f0a584a5d9b8109bc54df20461a6ae28675f4ee678718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8380f6128d347966e5f0a584a5d9b8109bc54df20461a6ae28675f4ee678718", kill_on_drop: false }`
[INFO] [stdout] e8380f6128d347966e5f0a584a5d9b8109bc54df20461a6ae28675f4ee678718
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d07e8e9649aa0ccbacdaa6fc3b33caebbb0b22131dd097447057860c5d30ce09
[INFO] running `Command { std: "docker" "start" "-a" "d07e8e9649aa0ccbacdaa6fc3b33caebbb0b22131dd097447057860c5d30ce09", kill_on_drop: false }`
[INFO] [stderr]     Checking yugodb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]    --> src/pager.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/btree.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 | use crate::error::{Result, Error};
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/btree.rs:407:63
[INFO] [stdout]     |
[INFO] [stdout] 407 |         internal_node.children[0] = Some(BPTreeNodeEnum::Leaf((leaf_node1) ));
[INFO] [stdout]     |                                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 407 -         internal_node.children[0] = Some(BPTreeNodeEnum::Leaf((leaf_node1) ));
[INFO] [stdout] 407 +         internal_node.children[0] = Some(BPTreeNodeEnum::Leaf(leaf_node1 ));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/btree.rs:408:63
[INFO] [stdout]     |
[INFO] [stdout] 408 |         internal_node.children[1] = Some(BPTreeNodeEnum::Leaf((leaf_node2) ));
[INFO] [stdout]     |                                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 408 -         internal_node.children[1] = Some(BPTreeNodeEnum::Leaf((leaf_node2) ));
[INFO] [stdout] 408 +         internal_node.children[1] = Some(BPTreeNodeEnum::Leaf(leaf_node2 ));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/btree.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 | use crate::error::{Result, Error};
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/btree.rs:367:14
[INFO] [stdout]     |
[INFO] [stdout] 367 |         for (id, k) in self.keys.iter().enumerate() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> src/lib.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct Token {
[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/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 66 |     fn new(token_type: TokenType, text: String, literal: Option<String>, line: usize) -> Token {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]  --> src/tokenizer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Tokenizer<'a> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/tokenizer.rs:18:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 18  |     fn new(source: &'a str) -> Tokenizer<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28  |     fn scan_tokens(&mut self) -> Result<Vec<Token>>  {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40  |     fn is_at_end(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44  |     fn scan_token(&mut self) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn identifier(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |     fn number(&mut self) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn string(&mut self) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn peek(&self) -> char {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 |     fn peek_next(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     fn match_char(&mut self, expected: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn advance(&mut self) -> char {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     fn add_token(&mut self, token_type: TokenType, literal: Option<String>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_digit` is never used
[INFO] [stdout]    --> src/tokenizer.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn is_digit(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alpha` is never used
[INFO] [stdout]    --> src/tokenizer.rs:227:4
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn is_alpha(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alphanumeric` is never used
[INFO] [stdout]    --> src/tokenizer.rs:231:4
[INFO] [stdout]     |
[INFO] [stdout] 231 | fn is_alphanumeric(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE_KB` is never used
[INFO] [stdout]  --> src/pager.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const PAGE_SIZE_KB: usize = 4096;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/pager.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const PAGE_SIZE_BYTES:usize = PAGE_SIZE_KB * 1024; 
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FILE_LIMIT_PAGES` is never used
[INFO] [stdout]   --> src/pager.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const FILE_LIMIT_PAGES: usize = 4096;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FILE_LIMIT_KB` is never used
[INFO] [stdout]   --> src/pager.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const FILE_LIMIT_KB:usize = FILE_LIMIT_PAGES * PAGE_SIZE_KB; 
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INIT_PAGE_COUNT` is never used
[INFO] [stdout]   --> src/pager.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const INIT_PAGE_COUNT: usize = 24;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileInfo` is never constructed
[INFO] [stdout]   --> src/pager.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct FileInfo{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/pager.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Page {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PageCache` is never constructed
[INFO] [stdout]   --> src/pager.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct PageCache { 
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pager` is never constructed
[INFO] [stdout]   --> src/pager.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Pager {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pager.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl FileInfo {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> FileInfo {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `create_new_page`, `delete_page`, `create_new_file`, `flush_page`, and `flush_all_pages` are never used
[INFO] [stdout]    --> src/pager.rs:63:8
[INFO] [stdout]     |
[INFO] [stdout] 61  | impl Pager  {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 62  |
[INFO] [stdout] 63  |     fn new(fname_prefix: String)-> Pager{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 73  |     fn create_new_page(&mut self) -> Result<Page> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn delete_page(&mut self, page: Page) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn create_new_file (&mut self, fname: String) -> Result<()> { 
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn flush_page(&self, page: &Page) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn flush_all_pages(&mut self) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_page`, `add_page`, and `get_page` are never used
[INFO] [stdout]    --> src/pager.rs:213:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | impl PageCache {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 213 |     fn new() -> Self{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn has_page(&mut self, page_index: usize) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn add_page(&mut self, page: &Page) -> Result<()> { 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn get_page(&mut self, page_index: usize) -> Option<&Page> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `M` is never used
[INFO] [stdout]   --> src/btree.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | const M: usize = 32;
[INFO] [stdout]    |       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BPTreeNodeEnum` is never used
[INFO] [stdout]   --> src/btree.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum BPTreeNodeEnum {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BPTreeNode` is never used
[INFO] [stdout]   --> src/btree.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 | trait BPTreeNode {
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BPTreeInternalNode` is never constructed
[INFO] [stdout]   --> src/btree.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct BPTreeInternalNode {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BPTreeLeafNode` is never constructed
[INFO] [stdout]   --> src/btree.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct BPTreeLeafNode  {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/btree.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 342 | impl BPTreeLeafNode{
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] 343 |     fn new() -> BPTreeLeafNode{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `is_full` are never used
[INFO] [stdout]    --> src/btree.rs:354:8
[INFO] [stdout]     |
[INFO] [stdout] 352 | impl BPTreeInternalNode {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 353 |     
[INFO] [stdout] 354 |     fn new() -> BPTreeInternalNode {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 365 |     fn is_full(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/btree.rs:367:14
[INFO] [stdout]     |
[INFO] [stdout] 367 |         for (id, k) in self.keys.iter().enumerate() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/btree.rs:440:38
[INFO] [stdout]     |
[INFO] [stdout] 440 |             BPTreeNodeEnum::Internal(n) => ()
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/btree.rs:452:38
[INFO] [stdout]     |
[INFO] [stdout] 452 |             BPTreeNodeEnum::Internal(n) => ()
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lexeme`, `literal`, and `line` are never read
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct Token {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 59 |     _type : TokenType,
[INFO] [stdout] 60 |     lexeme : String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 61 |     literal : Option<String>, 
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 62 |     line : usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bytes` and `dirty` are never read
[INFO] [stdout]   --> src/pager.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Page {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 27 |     index: usize,
[INFO] [stdout] 28 |     bytes: Vec<u8>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     dirty: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `capacity`, `loaded_pages`, and `counter` are never read
[INFO] [stdout]   --> src/pager.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct PageCache { 
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 35 |     capacity: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 36 |     loaded_pages: HashMap<usize, (Page, usize)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 37 |     counter: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PageCache` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cache` is never read
[INFO] [stdout]   --> src/pager.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Pager {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     cache: PageCache,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pager.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl FileInfo {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> FileInfo {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flush_page` and `flush_all_pages` are never used
[INFO] [stdout]    --> src/pager.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 61  | impl Pager  {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn flush_page(&self, page: &Page) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     fn flush_all_pages(&mut self) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `has_page`, `add_page`, and `get_page` are never used
[INFO] [stdout]    --> src/pager.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | impl PageCache {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn has_page(&mut self, page_index: usize) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn add_page(&mut self, page: &Page) -> Result<()> { 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn get_page(&mut self, page_index: usize) -> Option<&Page> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `serialize`, `is_leaf`, and `is_root` are never used
[INFO] [stdout]   --> src/btree.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | trait BPTreeNode {
[INFO] [stdout]    |       ---------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn serialize(&self) -> Vec<u8>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn is_leaf(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 56 |     fn is_root(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_root` is never read
[INFO] [stdout]   --> src/btree.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct BPTreeInternalNode {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 63 |     keys : Vec<u8>, // capacity M
[INFO] [stdout] 64 |     is_root: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BPTreeInternalNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_node` is never read
[INFO] [stdout]   --> src/btree.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct BPTreeLeafNode  {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 70 |     values: HashMap<u8, (u8,u8)>, 
[INFO] [stdout] 71 |     next_node: Option<Box<BPTreeLeafNode>>, //  LList
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BPTreeLeafNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yugodb::tokenizer`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use yugodb::tokenizer; 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yugodb::tokenizer`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use yugodb::tokenizer; 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "d07e8e9649aa0ccbacdaa6fc3b33caebbb0b22131dd097447057860c5d30ce09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07e8e9649aa0ccbacdaa6fc3b33caebbb0b22131dd097447057860c5d30ce09", kill_on_drop: false }`
[INFO] [stdout] d07e8e9649aa0ccbacdaa6fc3b33caebbb0b22131dd097447057860c5d30ce09