[INFO] fetching crate auradb 0.1.0...
[INFO] testing auradb-0.1.0 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate auradb 0.1.0 into /workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate auradb 0.1.0 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] ab336122c3bb18254996f08f3654b930a3e67cbda3501a6c08424b65c92b34cf
[INFO] running `Command { std: "docker" "start" "-a" "ab336122c3bb18254996f08f3654b930a3e67cbda3501a6c08424b65c92b34cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab336122c3bb18254996f08f3654b930a3e67cbda3501a6c08424b65c92b34cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab336122c3bb18254996f08f3654b930a3e67cbda3501a6c08424b65c92b34cf", kill_on_drop: false }`
[INFO] [stdout] ab336122c3bb18254996f08f3654b930a3e67cbda3501a6c08424b65c92b34cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 378a62d57becc394b9224c852878d6021a1158d5860e368e2cceb0f447158d90
[INFO] running `Command { std: "docker" "start" "-a" "378a62d57becc394b9224c852878d6021a1158d5860e368e2cceb0f447158d90", kill_on_drop: false }`
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[INFO] [stderr]    Compiling zerocopy v0.8.26
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[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling metrics v0.21.1
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[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: 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: 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: `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: 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: 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: 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: 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]     = 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: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: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: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: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] 
[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 45.66s
[INFO] running `Command { std: "docker" "inspect" "378a62d57becc394b9224c852878d6021a1158d5860e368e2cceb0f447158d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "378a62d57becc394b9224c852878d6021a1158d5860e368e2cceb0f447158d90", kill_on_drop: false }`
[INFO] [stdout] 378a62d57becc394b9224c852878d6021a1158d5860e368e2cceb0f447158d90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc94b0858470674402c873955dfc53cc5a6c923145c065e71db133b015a4900f
[INFO] running `Command { std: "docker" "start" "-a" "bc94b0858470674402c873955dfc53cc5a6c923145c065e71db133b015a4900f", kill_on_drop: false }`
[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: 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: 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: 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: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]     = 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: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: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: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: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] 
[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: 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 1.83s
[INFO] running `Command { std: "docker" "inspect" "bc94b0858470674402c873955dfc53cc5a6c923145c065e71db133b015a4900f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc94b0858470674402c873955dfc53cc5a6c923145c065e71db133b015a4900f", kill_on_drop: false }`
[INFO] [stdout] bc94b0858470674402c873955dfc53cc5a6c923145c065e71db133b015a4900f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1c6339b6bb861f6c95a556f9560ac4d3a05b088f3b71398947162a3fca6d678
[INFO] running `Command { std: "docker" "start" "-a" "c1c6339b6bb861f6c95a556f9560ac4d3a05b088f3b71398947162a3fca6d678", kill_on_drop: false }`
[INFO] [stderr] warning: field `config` is never read
[INFO] [stderr]   --> src/api.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub struct AuraEngine {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 66 |     /// Engine configuration
[INFO] [stderr] 67 |     config: Config,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `auradb` (lib) generated 1 warning
[INFO] [stderr] warning: `auradb` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: value assigned to `cumulative` is never read
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:218:17
[INFO] [stderr]     |
[INFO] [stderr] 218 |                 cumulative += self.workload.read_modify_write_ratio;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cumulative` is never read
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:207:17
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 cumulative += self.workload.scan_ratio;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cumulative` is never read
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:196:17
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 cumulative += self.workload.insert_ratio;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cumulative` is never read
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:188:17
[INFO] [stderr]     |
[INFO] [stderr] 188 |                 cumulative += self.workload.update_ratio;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cumulative` is never read
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |                 cumulative += self.workload.read_ratio;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:185:21
[INFO] [stderr]     |
[INFO] [stderr] 185 |                     self.db.put_bytes(key, &value);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 185 |                     let _ = self.db.put_bytes(key, &value);
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |                 self.db.put_bytes(&key, &value);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 193 |                 let _ = self.db.put_bytes(&key, &value);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ycsb_benchmark.rs:215:21
[INFO] [stderr]     |
[INFO] [stderr] 215 |                     self.db.put_bytes(key, &value);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 215 |                     let _ = self.db.put_bytes(key, &value);
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: fields `operations` and `key_size` are never read
[INFO] [stderr]    --> src/bin/run_all_ycsb_workloads.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 182 | struct WorkloadResult {
[INFO] [stderr]     |        -------------- fields in this struct
[INFO] [stderr] 183 |     workload: char,
[INFO] [stderr] 184 |     operations: usize,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 185 |     key_size: usize,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `WorkloadResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/full_benchmark.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut db = AuraEngine::new(config).expect("DB init failed");
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bin/full_benchmark.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     for i in 0..(operations / 10) {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/bin/rocksdb_comparison.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mixed_result`
[INFO] [stderr]   --> src/bin/rocksdb_comparison.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let mixed_result = benchmark_read_while_writing(&mut db, args);
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mixed_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `p50_latency_us` and `p99_latency_us` are never read
[INFO] [stderr]   --> src/bin/rocksdb_comparison.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct RocksDBBenchmark {
[INFO] [stderr]    |        ---------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 39 |     p50_latency_us: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 40 |     p99_latency_us: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `auradb` (bin "ycsb_benchmark" test) generated 8 warnings
[INFO] [stderr] warning: `auradb` (bin "run_all_ycsb_workloads" test) generated 1 warning
[INFO] [stderr] warning: `auradb` (bin "full_benchmark" test) generated 2 warnings (run `cargo fix --bin "full_benchmark" -p auradb --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `auradb` (bin "rocksdb_comparison" test) generated 3 warnings (run `cargo fix --bin "rocksdb_comparison" -p auradb --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/auradb-ca74c9b1bda52a74)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/benchmark.rs (/opt/rustwide/target/debug/deps/benchmark-39136621e1426e43)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/bin/full_benchmark.rs (/opt/rustwide/target/debug/deps/full_benchmark-c0533fca0bede625)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/rocksdb_comparison.rs (/opt/rustwide/target/debug/deps/rocksdb_comparison-40e829afc8fe7919)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/run_all_ycsb_workloads.rs (/opt/rustwide/target/debug/deps/run_all_ycsb_workloads-d84a686efec14735)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ycsb_benchmark.rs (/opt/rustwide/target/debug/deps/ycsb_benchmark-89c5812885a63627)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests auradb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c1c6339b6bb861f6c95a556f9560ac4d3a05b088f3b71398947162a3fca6d678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c6339b6bb861f6c95a556f9560ac4d3a05b088f3b71398947162a3fca6d678", kill_on_drop: false }`
[INFO] [stdout] c1c6339b6bb861f6c95a556f9560ac4d3a05b088f3b71398947162a3fca6d678
