[INFO] fetching crate auradb 0.1.0... [INFO] building auradb-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate auradb 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate auradb 0.1.0 [INFO] finished tweaking crates.io crate auradb 0.1.0 [INFO] tweaked toml for crates.io crate auradb 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate auradb 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate auradb 0.1.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... 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"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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 732a274e46f0b135ab0b9364752a352e03cb1858da3c5f414da3e25ed0fba1ea [INFO] running `Command { std: "docker" "start" "-a" "732a274e46f0b135ab0b9364752a352e03cb1858da3c5f414da3e25ed0fba1ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "732a274e46f0b135ab0b9364752a352e03cb1858da3c5f414da3e25ed0fba1ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "732a274e46f0b135ab0b9364752a352e03cb1858da3c5f414da3e25ed0fba1ea", kill_on_drop: false }` [INFO] [stdout] 732a274e46f0b135ab0b9364752a352e03cb1858da3c5f414da3e25ed0fba1ea [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a0c8f5e615ade344c22bd82da7922b492c83a7af9f8fcc3393a5bbda52ecefa6 [INFO] running `Command { std: "docker" "start" "-a" "a0c8f5e615ade344c22bd82da7922b492c83a7af9f8fcc3393a5bbda52ecefa6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.99 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling libc v0.2.175 [INFO] [stderr] Compiling cfg-if v1.0.1 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling pin-project-lite v0.2.16 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling itoa v1.0.15 [INFO] [stderr] Compiling bytes 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metrics-exporter-prometheus v0.12.2 [INFO] [stderr] Compiling auradb v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `config` is never read [INFO] [stdout] --> src/api.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub struct AuraEngine { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 66 | /// Engine configuration [INFO] [stdout] 67 | config: Config, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/full_benchmark.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut db = AuraEngine::new(config).expect("DB init failed"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/full_benchmark.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | for i in 0..(operations / 10) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mixed_result` [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | let mixed_result = benchmark_read_while_writing(&mut db, args); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mixed_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `operations` and `key_size` are never read [INFO] [stdout] --> src/bin/run_all_ycsb_workloads.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 182 | struct WorkloadResult { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 183 | workload: char, [INFO] [stdout] 184 | operations: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 185 | key_size: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WorkloadResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `p50_latency_us` and `p99_latency_us` are never read [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 36 | struct RocksDBBenchmark { [INFO] [stdout] | ---------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 39 | p50_latency_us: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 40 | p99_latency_us: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:178:17 [INFO] [stdout] | [INFO] [stdout] 178 | cumulative += self.workload.read_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:188:17 [INFO] [stdout] | [INFO] [stdout] 188 | cumulative += self.workload.update_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:196:17 [INFO] [stdout] | [INFO] [stdout] 196 | cumulative += self.workload.insert_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:207:17 [INFO] [stdout] | [INFO] [stdout] 207 | cumulative += self.workload.scan_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:218:17 [INFO] [stdout] | [INFO] [stdout] 218 | cumulative += self.workload.read_modify_write_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:185:21 [INFO] [stdout] | [INFO] [stdout] 185 | self.db.put_bytes(key, &value); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 185 | let _ = self.db.put_bytes(key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | self.db.put_bytes(&key, &value); [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] 193 | let _ = self.db.put_bytes(&key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | self.db.put_bytes(key, &value); [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] 215 | let _ = self.db.put_bytes(key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.59s [INFO] running `Command { std: "docker" "inspect" "a0c8f5e615ade344c22bd82da7922b492c83a7af9f8fcc3393a5bbda52ecefa6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0c8f5e615ade344c22bd82da7922b492c83a7af9f8fcc3393a5bbda52ecefa6", kill_on_drop: false }` [INFO] [stdout] a0c8f5e615ade344c22bd82da7922b492c83a7af9f8fcc3393a5bbda52ecefa6 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d62439a9c0809e3474445cf89668f7235f6c3c74a9f2a869203dd4fc10551e9d [INFO] running `Command { std: "docker" "start" "-a" "d62439a9c0809e3474445cf89668f7235f6c3c74a9f2a869203dd4fc10551e9d", kill_on_drop: false }` [INFO] [stdout] warning: field `config` is never read [INFO] [stdout] --> src/api.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub struct AuraEngine { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 66 | /// Engine configuration [INFO] [stdout] 67 | config: Config, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling auradb v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `operations` and `key_size` are never read [INFO] [stdout] --> src/bin/run_all_ycsb_workloads.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 182 | struct WorkloadResult { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] 183 | workload: char, [INFO] [stdout] 184 | operations: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 185 | key_size: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WorkloadResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/full_benchmark.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut db = AuraEngine::new(config).expect("DB init failed"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/full_benchmark.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | for i in 0..(operations / 10) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:178:17 [INFO] [stdout] | [INFO] [stdout] 178 | cumulative += self.workload.read_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:188:17 [INFO] [stdout] | [INFO] [stdout] 188 | cumulative += self.workload.update_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:196:17 [INFO] [stdout] | [INFO] [stdout] 196 | cumulative += self.workload.insert_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:207:17 [INFO] [stdout] | [INFO] [stdout] 207 | cumulative += self.workload.scan_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cumulative` is never read [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:218:17 [INFO] [stdout] | [INFO] [stdout] 218 | cumulative += self.workload.read_modify_write_ratio; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:185:21 [INFO] [stdout] | [INFO] [stdout] 185 | self.db.put_bytes(key, &value); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 185 | let _ = self.db.put_bytes(key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | self.db.put_bytes(&key, &value); [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] 193 | let _ = self.db.put_bytes(&key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/ycsb_benchmark.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | self.db.put_bytes(key, &value); [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] 215 | let _ = self.db.put_bytes(key, &value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mixed_result` [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | let mixed_result = benchmark_read_while_writing(&mut db, args); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mixed_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `p50_latency_us` and `p99_latency_us` are never read [INFO] [stdout] --> src/bin/rocksdb_comparison.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 36 | struct RocksDBBenchmark { [INFO] [stdout] | ---------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 39 | p50_latency_us: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 40 | p99_latency_us: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `config` is never read [INFO] [stdout] --> src/api.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub struct AuraEngine { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 66 | /// Engine configuration [INFO] [stdout] 67 | config: Config, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.17s [INFO] running `Command { std: "docker" "inspect" "d62439a9c0809e3474445cf89668f7235f6c3c74a9f2a869203dd4fc10551e9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d62439a9c0809e3474445cf89668f7235f6c3c74a9f2a869203dd4fc10551e9d", kill_on_drop: false }` [INFO] [stdout] d62439a9c0809e3474445cf89668f7235f6c3c74a9f2a869203dd4fc10551e9d