[INFO] cloning repository https://github.com/brelance/Solution-v1 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brelance/Solution-v1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrelance%2FSolution-v1", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrelance%2FSolution-v1'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dfacfe55c6ce51ccbc46e4c470e69cf4d12bad37 [INFO] checking brelance/Solution-v1/dfacfe55c6ce51ccbc46e4c470e69cf4d12bad37 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrelance%2FSolution-v1" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/brelance/Solution-v1 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/brelance/Solution-v1 [INFO] finished tweaking git repo https://github.com/brelance/Solution-v1 [INFO] tweaked toml for git repo https://github.com/brelance/Solution-v1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/brelance/Solution-v1 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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ouroboros v0.15.5 [INFO] [stderr] Downloaded quanta v0.10.1 [INFO] [stderr] Downloaded ouroboros_macro v0.15.5 [INFO] [stderr] Downloaded os_pipe v1.1.2 [INFO] [stderr] Downloaded duct v0.13.6 [INFO] [stderr] Downloaded crossbeam-skiplist v0.1.0 [INFO] [stderr] Downloaded triomphe v0.1.8 [INFO] [stderr] Downloaded uuid v1.2.2 [INFO] [stderr] Downloaded raw-cpuid v10.6.0 [INFO] [stderr] Downloaded pulldown-cmark v0.9.2 [INFO] [stderr] Downloaded moka v0.9.6 [INFO] [stderr] Downloaded semver v1.0.16 [INFO] [stderr] Downloaded rustix v0.36.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" 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kill_on_drop: false }` [INFO] [stdout] 594e614c4848231d70db2d7372c4f3ab81adafcb2ef505d8fad0af23651e7846 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 10b6889edaa9c881aef92647f08961a41e067ac81829667283581a45b51a3c59 [INFO] running `Command { std: "docker" "start" "-a" "10b6889edaa9c881aef92647f08961a41e067ac81829667283581a45b51a3c59", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking once_cell v1.16.0 [INFO] [stderr] Compiling parking_lot_core v0.9.5 [INFO] [stderr] Checking smallvec v1.10.0 [INFO] [stderr] Compiling anyhow v1.0.68 [INFO] [stderr] Compiling io-lifetimes v1.0.3 [INFO] [stderr] Compiling thiserror v1.0.38 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling rustix v0.36.5 [INFO] [stderr] Checking raw-cpuid v10.6.0 [INFO] [stderr] Compiling crossbeam-skiplist v0.1.0 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Compiling moka v0.9.6 [INFO] [stderr] Checking linux-raw-sys v0.1.4 [INFO] [stderr] Checking tagptr v0.2.0 [INFO] [stderr] Compiling serde v1.0.195 [INFO] [stderr] Checking aliasable v0.1.3 [INFO] [stderr] Checking triomphe v0.1.8 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Compiling crossbeam-epoch v0.9.13 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking bytes v1.3.0 [INFO] [stderr] Checking os_str_bytes v6.4.1 [INFO] [stderr] Checking arc-swap v1.5.1 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] 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v1.0.38 [INFO] [stderr] Compiling ouroboros_macro v0.15.5 [INFO] [stderr] Compiling clap_derive v4.0.21 [INFO] [stderr] Checking ouroboros v0.15.5 [INFO] [stderr] Checking clap v4.0.32 [INFO] [stderr] Checking mini-lsm v0.1.0 (/opt/rustwide/workdir/mini-lsm) [INFO] [stderr] Checking mini-lsm-xtask v0.1.0 (/opt/rustwide/workdir/xtask) [INFO] [stderr] Checking mini-lsm-starter v0.1.0 (/opt/rustwide/workdir/mini-lsm-starter) [INFO] [stdout] warning: unused import: `borrow::Borrow` [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{borrow::Borrow, sync::Arc}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `clone` and `iter` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | use std::{iter, clone}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::debug::as_bytes` [INFO] [stdout] --> mini-lsm-starter/src/lsm_iterator.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::debug::as_bytes; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> mini-lsm-starter/src/table.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::block::{self, Block}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::BTreeMap` [INFO] [stdout] --> mini-lsm-starter/src/block/builder.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 127 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::string` [INFO] [stdout] --> mini-lsm-starter/src/block/builder.rs:128:9 [INFO] [stdout] | [INFO] [stdout] 128 | use std::string; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `borrow::Borrow` [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.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: `builder` and `iterators` [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:179:61 [INFO] [stdout] | [INFO] [stdout] 179 | use crate::{block::{BlockIterator, Block, BlockBuilder, builder}, iterators}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `iter` [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:180:15 [INFO] [stdout] | [INFO] [stdout] 180 | use std::{iter, sync::Arc, vec}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::string::String` [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:311:13 [INFO] [stdout] | [INFO] [stdout] 311 | use std::string::String; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `clone` and `iter` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | use std::{iter, clone}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::debug::as_bytes` [INFO] [stdout] --> mini-lsm-starter/src/lsm_iterator.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::debug::as_bytes; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> mini-lsm-starter/src/table.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::block::{self, Block}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:65:17 [INFO] [stdout] | [INFO] [stdout] 65 | let mut value = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush_lock` [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:126:13 [INFO] [stdout] | [INFO] [stdout] 126 | let flush_lock = self.flush_lock.lock(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_flush_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:127:13 [INFO] [stdout] | [INFO] [stdout] 127 | let mut flush_table; [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: `iter` [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:186:21 [INFO] [stdout] | [INFO] [stdout] 186 | let mut iter = memtable.scan(lower, upper); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_iter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:186:17 [INFO] [stdout] | [INFO] [stdout] 186 | let mut iter = memtable.scan(lower, upper); [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] --> mini-lsm-starter/src/lsm_storage.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | let mut iter = match lower { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | flush_table.flush(&mut sst_builder); [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] 145 | let _ = flush_table.flush(&mut sst_builder); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/mem_table.rs:113:13 [INFO] [stdout] | [INFO] [stdout] 113 | self.next(); [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] 113 | let _ = self.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/table/builder.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | self.blockbuilder.add(key, value); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 57 | let _ = self.blockbuilder.add(key, value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/table/iterator.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | self.next(); [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] 96 | let _ = self.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | let mut block = builder.build(); [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] --> mini-lsm-starter/src/block/iterator.rs:235:13 [INFO] [stdout] | [INFO] [stdout] 235 | let mut block = builder.build(); [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] --> mini-lsm-starter/src/block/iterator.rs:254:13 [INFO] [stdout] | [INFO] [stdout] 254 | let mut block = builder.build(); [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] --> mini-lsm-starter/src/block.rs:136:13 [INFO] [stdout] | [INFO] [stdout] 136 | let mut block = builder.build(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> mini-lsm-starter/src/iterators/merge_iterator.rs:147:22 [INFO] [stdout] | [INFO] [stdout] 147 | fn eq(&self, other: &Self) -> bool { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:111:13 [INFO] [stdout] | [INFO] [stdout] 111 | let mut memtable = MemTable::create(); [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] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:125:13 [INFO] [stdout] | [INFO] [stdout] 125 | let mut mem_iter = memtable.scan(std::ops::Bound::Included(b"1"), std::ops::Bound::Included(b"2")); [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] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:126:13 [INFO] [stdout] | [INFO] [stdout] 126 | let mut sst_iter = SsTableIterator::create_and_seek_to_first(Arc::new(table))?; [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] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | let mut memtable = MemTable::create(); [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] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut mem_iter = memtable.scan(std::ops::Bound::Included(b"1"), std::ops::Bound::Included(b"2")); [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] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:150:13 [INFO] [stdout] | [INFO] [stdout] 150 | let mut sst_iter = SsTableIterator::create_and_seek_to_first(Arc::new(table))?; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:65:17 [INFO] [stdout] | [INFO] [stdout] 65 | let mut value = None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush_lock` [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:126:13 [INFO] [stdout] | [INFO] [stdout] 126 | let flush_lock = self.flush_lock.lock(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_flush_lock` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:127:13 [INFO] [stdout] | [INFO] [stdout] 127 | let mut flush_table; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iter` [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:186:21 [INFO] [stdout] | [INFO] [stdout] 186 | let mut iter = memtable.scan(lower, upper); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_iter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:186:17 [INFO] [stdout] | [INFO] [stdout] 186 | let mut iter = memtable.scan(lower, upper); [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] --> mini-lsm-starter/src/lsm_storage.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | let mut iter = match lower { [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] --> mini-lsm-starter/src/table/builder.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | let mut table: SsTable = builder.build(1, None, path).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] --> mini-lsm-starter/src/table/builder.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let mut table: SsTable = builder.build(1, None, path).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] --> mini-lsm-starter/src/table/iterator.rs:192:13 [INFO] [stdout] | [INFO] [stdout] 192 | let mut iter = SsTableIterator::create_and_seek_to_first(sst).expect("error"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/builder.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | block_builder.add(b"1", b"432"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 132 | let _ = block_builder.add(b"1", b"432"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/builder.rs:133:9 [INFO] [stdout] | [INFO] [stdout] 133 | block_builder.add(b"3", b"432"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 133 | let _ = block_builder.add(b"3", b"432"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/builder.rs:134:9 [INFO] [stdout] | [INFO] [stdout] 134 | block_builder.add(b"2", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 134 | let _ = block_builder.add(b"2", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:211:9 [INFO] [stdout] | [INFO] [stdout] 211 | builder.add(b"233", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 211 | let _ = builder.add(b"233", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:212:9 [INFO] [stdout] | [INFO] [stdout] 212 | builder.add(b"122", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 212 | let _ = builder.add(b"122", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:230:9 [INFO] [stdout] | [INFO] [stdout] 230 | builder.add(b"1", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 230 | let _ = builder.add(b"1", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:231:9 [INFO] [stdout] | [INFO] [stdout] 231 | builder.add(b"2", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 231 | let _ = builder.add(b"2", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 232 | builder.add(b"4", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 232 | let _ = builder.add(b"4", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | builder.add(b"5", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 233 | let _ = builder.add(b"5", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:234:9 [INFO] [stdout] | [INFO] [stdout] 234 | builder.add(b"8", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 234 | let _ = builder.add(b"8", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | builder.add(b"key_2", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 248 | let _ = builder.add(b"key_2", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | builder.add(b"key_1", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 249 | let _ = builder.add(b"key_1", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:250:9 [INFO] [stdout] | [INFO] [stdout] 250 | builder.add(b"key_8", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 250 | let _ = builder.add(b"key_8", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:251:9 [INFO] [stdout] | [INFO] [stdout] 251 | builder.add(b"key_4", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 251 | let _ = builder.add(b"key_4", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:252:9 [INFO] [stdout] | [INFO] [stdout] 252 | builder.add(b"key_5", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 252 | let _ = builder.add(b"key_5", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:283:9 [INFO] [stdout] | [INFO] [stdout] 283 | builder.add(b"key_2", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 283 | let _ = builder.add(b"key_2", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:284:9 [INFO] [stdout] | [INFO] [stdout] 284 | builder.add(b"key_1", b"1"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 284 | let _ = builder.add(b"key_1", b"1"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:285:9 [INFO] [stdout] | [INFO] [stdout] 285 | builder.add(b"key_3", b"Hello"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 285 | let _ = builder.add(b"key_3", b"Hello"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | builder.add(b"key_8", b"World"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 286 | let _ = builder.add(b"key_8", b"World"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block/iterator.rs:287:9 [INFO] [stdout] | [INFO] [stdout] 287 | builder.add(b"key_4", b"42"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 287 | let _ = builder.add(b"key_4", b"42"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:134:9 [INFO] [stdout] | [INFO] [stdout] 134 | builder.add(b"233", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 134 | let _ = builder.add(b"233", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:135:9 [INFO] [stdout] | [INFO] [stdout] 135 | builder.add(b"122", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 135 | let _ = builder.add(b"122", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | builder.add(b"233", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 144 | let _ = builder.add(b"233", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | builder.add(b"122", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 145 | let _ = builder.add(b"122", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | builder1.add(b"333", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 149 | let _ = builder1.add(b"333", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | builder1.add(b"422", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 150 | let _ = builder1.add(b"422", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | builder2.add(b"733", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 154 | let _ = builder2.add(b"733", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:155:9 [INFO] [stdout] | [INFO] [stdout] 155 | builder2.add(b"922", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 155 | let _ = builder2.add(b"922", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:159:9 [INFO] [stdout] | [INFO] [stdout] 159 | builder3.add(b"033", b"233333"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 159 | let _ = builder3.add(b"033", b"233333"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/block.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | builder3.add(b"122", b"122222"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 160 | let _ = builder3.add(b"122", b"122222"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:133:13 [INFO] [stdout] | [INFO] [stdout] 133 | two_merger_iter.next(); [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] 133 | let _ = two_merger_iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/two_merge_iterator.rs:155:13 [INFO] [stdout] | [INFO] [stdout] 155 | two_merger_iter.next(); [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] 155 | let _ = two_merger_iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | iter.next(); [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] 23 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | iter.next(); [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] 26 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | iter.next(); [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] 29 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 51 | iter.next(); [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] 51 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | iter.next(); [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] 54 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/iterators/tests/two_merge_iterator_test.rs:57:5 [INFO] [stdout] | [INFO] [stdout] 57 | iter.next(); [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] 57 | let _ = iter.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/lsm_storage.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | flush_table.flush(&mut sst_builder); [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] 145 | let _ = flush_table.flush(&mut sst_builder); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/mem_table.rs:113:13 [INFO] [stdout] | [INFO] [stdout] 113 | self.next(); [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] 113 | let _ = self.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `BlockBuilder::add` that must be used [INFO] [stdout] --> mini-lsm-starter/src/table/builder.rs:57:13 [INFO] [stdout] | [INFO] [stdout] 57 | self.blockbuilder.add(key, value); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 57 | let _ = self.blockbuilder.add(key, value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> mini-lsm-starter/src/table/iterator.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | self.next(); [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] 96 | let _ = self.next(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `ssTable` should have a snake case name [INFO] [stdout] --> mini-lsm-starter/src/table/tests.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let ssTable = builder.build_for_test(dir.path().join("1.sst")).unwrap(); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `ss_table` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 74 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.30s [INFO] running `Command { std: "docker" "inspect" "10b6889edaa9c881aef92647f08961a41e067ac81829667283581a45b51a3c59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10b6889edaa9c881aef92647f08961a41e067ac81829667283581a45b51a3c59", kill_on_drop: false }` [INFO] [stdout] 10b6889edaa9c881aef92647f08961a41e067ac81829667283581a45b51a3c59