[INFO] cloning repository https://github.com/Yufei-YAO/rultdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yufei-YAO/rultdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYufei-YAO%2Frultdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYufei-YAO%2Frultdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33ebf21218eedc9848ea388fab3b3b3a0a704506
[INFO] checking Yufei-YAO/rultdb/33ebf21218eedc9848ea388fab3b3b3a0a704506 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYufei-YAO%2Frultdb" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yufei-YAO/rultdb on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yufei-YAO/rultdb
[INFO] finished tweaking git repo https://github.com/Yufei-YAO/rultdb
[INFO] tweaked toml for git repo https://github.com/Yufei-YAO/rultdb written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Yufei-YAO/rultdb 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded page_size v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a5543fb2dac52519f6cb1c8f639991cd0eac264786edc5b9c135533c2217fba
[INFO] running `Command { std: "docker" "start" "-a" "0a5543fb2dac52519f6cb1c8f639991cd0eac264786edc5b9c135533c2217fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a5543fb2dac52519f6cb1c8f639991cd0eac264786edc5b9c135533c2217fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5543fb2dac52519f6cb1c8f639991cd0eac264786edc5b9c135533c2217fba", kill_on_drop: false }`
[INFO] [stdout] 0a5543fb2dac52519f6cb1c8f639991cd0eac264786edc5b9c135533c2217fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1143a711acb5abbb2f2fc6592b5786eeeddf980a3b197f0417eea3e7b3df4b3
[INFO] running `Command { std: "docker" "start" "-a" "b1143a711acb5abbb2f2fc6592b5786eeeddf980a3b197f0417eea3e7b3df4b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking rultdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/error.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, ops::Deref};
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefMut`, `io::WriterPanicked`, and `marker::PhantomData`
[INFO] [stdout]  --> src/tx.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, cell::{RefCell, RefMut}, collections::HashMap, io::WriterPanicked, marker::PhantomData, sync::{Arc, Weak}};
[INFO] [stdout]   |                                           ^^^^^^                         ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/freelist.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, default, mem::size_of};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `db`
[INFO] [stdout]  --> src/node.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{config::PAGE_SIZE, db, page::{BranchPageElement, LeafPageElement, Page, PageFlag, PgId, BRANCH_ELEMENT_SIZE, LEAF_ELEMENT_SIZ...
[INFO] [stdout]   |                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/cursor.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WeakTx` and `db`
[INFO] [stdout]  --> src/cursor.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{ db, node::{Node, WeakNode}, page::{Page, PageFlag, PgId}, tx::{PageNode, Tx, WeakTx}};
[INFO] [stdout]   |              ^^                                                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:238:30
[INFO] [stdout]     |
[INFO] [stdout] 238 |                     Ok(v) => (v),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -                     Ok(v) => (v),
[INFO] [stdout] 238 +                     Ok(v) => v,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:239:31
[INFO] [stdout]     |
[INFO] [stdout] 239 |                     Err(e) => (e),
[INFO] [stdout]     |                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 -                     Err(e) => (e),
[INFO] [stdout] 239 +                     Err(e) => e,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:250:30
[INFO] [stdout]     |
[INFO] [stdout] 250 |                     Ok(v) => (v),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 250 -                     Ok(v) => (v),
[INFO] [stdout] 250 +                     Ok(v) => v,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:251:31
[INFO] [stdout]     |
[INFO] [stdout] 251 |                     Err(e) => (e),
[INFO] [stdout]     |                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 -                     Err(e) => (e),
[INFO] [stdout] 251 +                     Err(e) => e,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `atomic::AtomicU64` and `default`
[INFO] [stdout]  --> src/db.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, default, fs::{File, OpenOptions}, io::Write, ptr::null, sync::{atomic::AtomicU64, Arc, Weak}};
[INFO] [stdout]   |                                        ^^^^^^^                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TxInner` and `db`
[INFO] [stdout]  --> src/db.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...PAGE_SIZE}, db, freelist::FreeList, page::{Meta, OwnedPage, Page, PageFlag, PgId, MAGIC, VERSION}, tx::{Tx, TxId, TxInner}};
[INFO] [stdout]   |                ^^                                                                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/error.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, ops::Deref};
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefMut`, `io::WriterPanicked`, and `marker::PhantomData`
[INFO] [stdout]  --> src/tx.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, cell::{RefCell, RefMut}, collections::HashMap, io::WriterPanicked, marker::PhantomData, sync::{Arc, Weak}};
[INFO] [stdout]   |                                           ^^^^^^                         ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/freelist.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, default, mem::size_of};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `db`
[INFO] [stdout]  --> src/node.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{config::PAGE_SIZE, db, page::{BranchPageElement, LeafPageElement, Page, PageFlag, PgId, BRANCH_ELEMENT_SIZE, LEAF_ELEMENT_SIZ...
[INFO] [stdout]   |                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null_mut`
[INFO] [stdout]    --> src/node.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 |     use std::ptr::null_mut;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::db::DBInnerState`
[INFO] [stdout]    --> src/node.rs:592:9
[INFO] [stdout]     |
[INFO] [stdout] 592 |     use crate::db::DBInnerState;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/cursor.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WeakTx` and `db`
[INFO] [stdout]  --> src/cursor.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{ db, node::{Node, WeakNode}, page::{Page, PageFlag, PgId}, tx::{PageNode, Tx, WeakTx}};
[INFO] [stdout]   |              ^^                                                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:238:30
[INFO] [stdout]     |
[INFO] [stdout] 238 |                     Ok(v) => (v),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -                     Ok(v) => (v),
[INFO] [stdout] 238 +                     Ok(v) => v,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:239:31
[INFO] [stdout]     |
[INFO] [stdout] 239 |                     Err(e) => (e),
[INFO] [stdout]     |                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 -                     Err(e) => (e),
[INFO] [stdout] 239 +                     Err(e) => e,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:250:30
[INFO] [stdout]     |
[INFO] [stdout] 250 |                     Ok(v) => (v),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 250 -                     Ok(v) => (v),
[INFO] [stdout] 250 +                     Ok(v) => v,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/cursor.rs:251:31
[INFO] [stdout]     |
[INFO] [stdout] 251 |                     Err(e) => (e),
[INFO] [stdout]     |                               ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 -                     Err(e) => (e),
[INFO] [stdout] 251 +                     Err(e) => e,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `atomic::AtomicU64` and `default`
[INFO] [stdout]  --> src/db.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, default, fs::{File, OpenOptions}, io::Write, ptr::null, sync::{atomic::AtomicU64, Arc, Weak}};
[INFO] [stdout]   |                                        ^^^^^^^                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TxInner` and `db`
[INFO] [stdout]  --> src/db.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...PAGE_SIZE}, db, freelist::FreeList, page::{Meta, OwnedPage, Page, PageFlag, PgId, MAGIC, VERSION}, tx::{Tx, TxId, TxInner}};
[INFO] [stdout]   |                ^^                                                                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]    --> src/db.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |     use core::time;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]    --> src/db.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     use std::str;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]    --> src/db.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use std::thread::sleep;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]    --> src/db.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 305 |     use std::thread::JoinHandle;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::Thread`
[INFO] [stdout]    --> src/db.rs:306:9
[INFO] [stdout]     |
[INFO] [stdout] 306 |     use std::thread::Thread;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]    --> src/db.rs:307:9
[INFO] [stdout]     |
[INFO] [stdout] 307 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> src/page.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrow`
[INFO] [stdout]  --> src/node.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, cell::{Ref, RefCell, RefMut}, collections::HashSet, sync::{Arc, Weak}};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/node.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, cell::{Ref, RefCell, RefMut}, collections::HashSet, sync::{Arc, Weak}};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> src/cursor.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/db.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, default, fs::{File, OpenOptions}, io::Write, ptr::null, sync::{atomic::AtomicU64, Arc, Weak}};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> src/page.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrow`
[INFO] [stdout]  --> src/node.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, cell::{Ref, RefCell, RefMut}, collections::HashSet, sync::{Arc, Weak}};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/node.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, cell::{Ref, RefCell, RefMut}, collections::HashSet, sync::{Arc, Weak}};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> src/cursor.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/db.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::{Borrow, BorrowMut}, default, fs::{File, OpenOptions}, io::Write, ptr::null, sync::{atomic::AtomicU64, Arc, Weak}};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ow`
[INFO] [stdout]    --> src/tx.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let ow = OwnedPage::from_vec(buf);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/tx.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let item = c.seek(key)?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tx.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |         let mut root = n.clone();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ow`
[INFO] [stdout]    --> src/tx.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let ow = OwnedPage::from_vec(buf);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/tx.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let item = c.seek(key)?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/freelist.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut m: Vec<PgId> = Vec::with_capacity(self.pending_count());
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/freelist.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut m: Vec<PgId> = Vec::with_capacity(self.pending_count());
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tx.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |         let mut root = n.clone();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:257:18
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Some(mut p) => {
[INFO] [stdout]     |                  ----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/freelist.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut m: Vec<PgId> = Vec::with_capacity(self.pending_count());
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/freelist.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut m: Vec<PgId> = Vec::with_capacity(self.pending_count());
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pgid`
[INFO] [stdout]    --> src/freelist.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let pgid = freelist.allocate(1);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_pgid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freelist`
[INFO] [stdout]    --> src/freelist.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |         let mut freelist = FreeList {
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_freelist`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/freelist.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |         let mut freelist = FreeList {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/freelist.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let mut freelist = FreeList {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/node.rs:531:13
[INFO] [stdout]     |
[INFO] [stdout] 531 |         let len = nodes.len();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_id`
[INFO] [stdout]    --> src/node.rs:544:17
[INFO] [stdout]     |
[INFO] [stdout] 544 |             let new_id = page.id;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:257:18
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Some(mut p) => {
[INFO] [stdout]     |                  ----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:499:13
[INFO] [stdout]     |
[INFO] [stdout] 499 |         let mut tx = atx.clone();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:572:21
[INFO] [stdout]     |
[INFO] [stdout] 572 |         if let Some(mut p) = parent_node {
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/node.rs:531:13
[INFO] [stdout]     |
[INFO] [stdout] 531 |         let len = nodes.len();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_id`
[INFO] [stdout]    --> src/node.rs:544:17
[INFO] [stdout]     |
[INFO] [stdout] 544 |             let new_id = page.id;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/cursor.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut index: usize = 0;
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cursor.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut index: usize = 0;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/cursor.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |         let idx = ref_elem.index;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:499:13
[INFO] [stdout]     |
[INFO] [stdout] 499 |         let mut tx = atx.clone();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:572:21
[INFO] [stdout]     |
[INFO] [stdout] 572 |         if let Some(mut p) = parent_node {
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let mut node1 = NodeInner::new().leaf(true).build();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/cursor.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut index: usize = 0;
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cursor.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut index: usize = 0;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/cursor.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |         let idx = ref_elem.index;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cursor.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |         let mut elem = self.stack.first().unwrap();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let mut tx = Tx::new(true, WeakDB(Arc::downgrade(&self.0)), meta);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut meta = self.0.state.try_read().unwrap().borrow().meta();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut tx = Tx::new(false, WeakDB(Arc::downgrade(&self.0)), meta);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cursor.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |         let mut elem = self.stack.first().unwrap();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]    --> src/db.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn open(path: &str, opt: Options) -> Result<DB> {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let mut tx = Tx::new(true, WeakDB(Arc::downgrade(&self.0)), meta);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut meta = self.0.state.try_read().unwrap().borrow().meta();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mut tx = Tx::new(false, WeakDB(Arc::downgrade(&self.0)), meta);
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]    --> src/db.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn open(path: &str, opt: Options) -> Result<DB> {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/tx.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct WeakTx(pub(crate) Weak<TxInner>);
[INFO] [stdout]    |            ------ ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `release` is never used
[INFO] [stdout]    --> src/freelist.rs:167:19
[INFO] [stdout]     |
[INFO] [stdout] 15  | impl FreeList {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub(crate) fn release(&mut self, txid: TxId) {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/cursor.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<'a> Item<'a> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub(crate) fn value(&self) -> Option<&'a [u8]> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `begin_rwtx` and `begin_tx` are never used
[INFO] [stdout]    --> src/db.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl DB {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] 113 |     fn begin_rwtx(&self) -> Tx {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     fn begin_tx(&self) -> Tx {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_OPTIONS` is never used
[INFO] [stdout]    --> src/db.rs:293:7
[INFO] [stdout]     |
[INFO] [stdout] 293 | const DEFAULT_OPTIONS: Options = Options {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]    --> src/db.rs:344:17
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let mut tx = unsafe { (&*(db.0.state.try_read().unwrap().meta0)).txid };
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:344:13
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let mut tx = unsafe { (&*(db.0.state.try_read().unwrap().meta0)).txid };
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:360:13
[INFO] [stdout]     |
[INFO] [stdout] 360 |         let mut db = DBInner::open("./test2.db", DEFAULT_OPTIONS).unwrap();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let mut db = DBInner::open("./test2.db", DEFAULT_OPTIONS).unwrap();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tx.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.close();
[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] 103 |         let _ = self.close();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         f.set_len(0);
[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] 172 |         let _ = f.set_len(0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/tx.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct WeakTx(pub(crate) Weak<TxInner>);
[INFO] [stdout]    |            ------ ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/cursor.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<'a> Item<'a> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub(crate) fn value(&self) -> Option<&'a [u8]> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tx.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.close();
[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] 103 |         let _ = self.close();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         f.set_len(0);
[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] 172 |         let _ = f.set_len(0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:316:13
[INFO] [stdout]     |
[INFO] [stdout] 316 |             tx.put(i.to_string().as_bytes(), i.to_string().as_bytes());
[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] 316 |             let _ = tx.put(i.to_string().as_bytes(), i.to_string().as_bytes());
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |             tx.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] 318 |             let _ = tx.commit();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:331:17
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 tx.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] 331 |                 let _ = tx.commit();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |             i.join();
[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] 336 |             let _ = i.join();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |         tx.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] 353 |         let _ = tx.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |         tx1.put(b"001", b"123");
[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] 362 |         let _ = tx1.put(b"001", b"123");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         tx1.put(b"005", b"ccc");
[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] 363 |         let _ = tx1.put(b"005", b"ccc");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 364 |         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] 364 |         let _ = tx1.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |         tx2.put(b"002", b"bbb");
[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] 366 |         let _ = tx2.put(b"002", b"bbb");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |         tx2.put(b"003", b"ccc");
[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] 367 |         let _ = tx2.put(b"003", b"ccc");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:368:9
[INFO] [stdout]     |
[INFO] [stdout] 368 |         tx2.put(b"004", b"ddd");
[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] 368 |         let _ = tx2.put(b"004", b"ddd");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:369:9
[INFO] [stdout]     |
[INFO] [stdout] 369 |         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] 369 |         let _ = tx2.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:372:9
[INFO] [stdout]     |
[INFO] [stdout] 372 |         tx3.delete(b"001");
[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] 372 |         let _ = tx3.delete(b"001");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:374:9
[INFO] [stdout]     |
[INFO] [stdout] 374 |         tx3.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] 374 |         let _ = tx3.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:381:9
[INFO] [stdout]     |
[INFO] [stdout] 381 |         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] 381 |         let _ = tx4.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |         tx1.put(b"001", b"aaa");
[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] 388 |         let _ = tx1.put(b"001", b"aaa");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         tx1.put(b"005", b"ccc");
[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] 389 |         let _ = tx1.put(b"005", b"ccc");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/db.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         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] 397 |         let _ = tx4.commit();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 74 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.08s
[INFO] running `Command { std: "docker" "inspect" "b1143a711acb5abbb2f2fc6592b5786eeeddf980a3b197f0417eea3e7b3df4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1143a711acb5abbb2f2fc6592b5786eeeddf980a3b197f0417eea3e7b3df4b3", kill_on_drop: false }`
[INFO] [stdout] b1143a711acb5abbb2f2fc6592b5786eeeddf980a3b197f0417eea3e7b3df4b3