[INFO] fetching crate kv-rs 0.0.6...
[INFO] testing kv-rs-0.0.6 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate kv-rs 0.0.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate kv-rs 0.0.6 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kv-rs 0.0.6
[INFO] finished tweaking crates.io crate kv-rs 0.0.6
[INFO] tweaked toml for crates.io crate kv-rs 0.0.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 203 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.21.0 (latest: v0.22.0)
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.1)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding educe v0.4.23 (latest: v0.5.11)
[INFO] [stderr]       Adding enum-ordinalize v3.1.15 (latest: v4.3.0)
[INFO] [stderr]       Adding fs4 v0.7.0 (latest: v0.8.3)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding gimli v0.28.1 (latest: v0.29.0)
[INFO] [stderr]       Adding gnuplot v0.0.42 (latest: v0.0.43)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding hashbrown v0.13.2 (latest: v0.14.5)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.35.0)
[INFO] [stderr]       Adding ordered-multimap v0.6.0 (latest: v0.7.3)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding remove_dir_all v0.5.3 (latest: v0.8.2)
[INFO] [stderr]       Adding rust-ini v0.19.0 (latest: v0.21.0)
[INFO] [stderr]       Adding serial_test v2.0.0 (latest: v3.1.1)
[INFO] [stderr]       Adding serial_test_derive v2.0.0 (latest: v3.1.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.66)
[INFO] [stderr]       Adding tempfile v3.9.0 (latest: v3.10.1)
[INFO] [stderr]       Adding tokio v1.35.1 (latest: v1.37.0)
[INFO] [stderr]       Adding tokio-serde v0.8.0 (latest: v0.9.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serial_test_derive v2.0.0
[INFO] [stderr]   Downloaded fs4 v0.7.0
[INFO] [stderr]   Downloaded tempfile v3.9.0
[INFO] [stderr]   Downloaded serial_test v2.0.0
[INFO] [stderr]   Downloaded const-random-macro v0.1.16
[INFO] [stderr]   Downloaded const-random v0.1.18
[INFO] [stderr]   Downloaded whosly v0.1.8
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded dlv-list v0.5.2
[INFO] [stderr]   Downloaded ordered-multimap v0.6.0
[INFO] [stderr]   Downloaded rust-ini v0.19.0
[INFO] [stderr]   Downloaded ron v0.8.1
[INFO] [stderr]   Downloaded config v0.14.0
[INFO] [stderr]   Downloaded gnuplot v0.0.42
[INFO] [stderr]   Downloaded tokio v1.35.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca5392fc600058213d4ec210d162ae4ed431f268783e6e8648425c52d5e7f2bf
[INFO] running `Command { std: "docker" "start" "-a" "ca5392fc600058213d4ec210d162ae4ed431f268783e6e8648425c52d5e7f2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca5392fc600058213d4ec210d162ae4ed431f268783e6e8648425c52d5e7f2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca5392fc600058213d4ec210d162ae4ed431f268783e6e8648425c52d5e7f2bf", kill_on_drop: false }`
[INFO] [stdout] ca5392fc600058213d4ec210d162ae4ed431f268783e6e8648425c52d5e7f2bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f46cf7044fed98d16ac4dbc6d5efb625c3ae8ea30774a581314afb6278da1f8e
[INFO] running `Command { std: "docker" "start" "-a" "f46cf7044fed98d16ac4dbc6d5efb625c3ae8ea30774a581314afb6278da1f8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling winnow v0.6.8
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling num-bigint v0.4.5
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling dlv-list v0.5.2
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ordered-multimap v0.6.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling pathdiff v0.2.1
[INFO] [stderr]    Compiling rust-ini v0.19.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling pest v2.7.10
[INFO] [stderr]    Compiling pest_meta v2.7.10
[INFO] [stderr]    Compiling pest_generator v2.7.10
[INFO] [stderr]    Compiling pest_derive v2.7.10
[INFO] [stderr]    Compiling tokio-util v0.7.11
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]    Compiling whosly v0.1.8
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling serde_spanned v0.6.6
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling json5 v0.4.1
[INFO] [stderr]    Compiling serde_bytes v0.11.14
[INFO] [stderr]    Compiling toml_edit v0.22.13
[INFO] [stderr]    Compiling ron v0.8.1
[INFO] [stderr]    Compiling tokio-serde v0.8.0
[INFO] [stderr]    Compiling fs4 v0.7.0
[INFO] [stderr]    Compiling toml v0.8.13
[INFO] [stderr]    Compiling config v0.14.0
[INFO] [stderr]    Compiling kv-rs v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> src/codec/json_codec.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> src/codec/json_codec.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de, Deserialize};
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> src/codec/json_codec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::codec::bytes_codec::BytesCodec`
[INFO] [stdout]  --> src/codec/bytes_codec2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::codec::bytes_codec::BytesCodec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_terminal` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_terminal)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut bytes = Vec::new();
[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: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec2.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut bytes = Vec::new();
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]  --> src/info.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let size = if status.is_ok() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, `decode_bytes`, and `decode_cursor` are never used
[INFO] [stdout]   --> src/codec/bytes_codec2.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl BytesCodec2 {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn encode<T>(&self, value: &T) -> CResult<Vec<u8>>
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn decode_bytes<R>(&self, value: &[u8], decode_len: bool) -> CResult<R> where R: for<'a> Deserialize<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn decode_cursor<R>(&self, cursor: &mut Cursor<&[u8]>) -> CResult<Option<R>> where R: for<'a> Deserialize<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]  --> src/mvcc/transaction.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Transaction<E: Engine> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/row/rows.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(Vec<String>);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Row` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(());
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.53s
[INFO] running `Command { std: "docker" "inspect" "f46cf7044fed98d16ac4dbc6d5efb625c3ae8ea30774a581314afb6278da1f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46cf7044fed98d16ac4dbc6d5efb625c3ae8ea30774a581314afb6278da1f8e", kill_on_drop: false }`
[INFO] [stdout] f46cf7044fed98d16ac4dbc6d5efb625c3ae8ea30774a581314afb6278da1f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38502078fac5f39ffff21397e0fb421b4fd80703b36440135d6e37a29a4e59a3
[INFO] running `Command { std: "docker" "start" "-a" "38502078fac5f39ffff21397e0fb421b4fd80703b36440135d6e37a29a4e59a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling num-bigint v0.4.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling serial_test v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v1.4.0
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling gnuplot v0.0.42
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling tokio-serde v0.8.0
[INFO] [stderr]    Compiling kv-rs v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> src/codec/json_codec.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> src/codec/json_codec.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de, Deserialize};
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> src/codec/json_codec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::codec::bytes_codec::BytesCodec`
[INFO] [stdout]  --> src/codec/bytes_codec2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::codec::bytes_codec::BytesCodec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_terminal` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_terminal)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut bytes = Vec::new();
[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: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec2.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut bytes = Vec::new();
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]  --> src/info.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let size = if status.is_ok() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `encode`, `decode_bytes`, and `decode_cursor` are never used
[INFO] [stdout]   --> src/codec/bytes_codec2.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl BytesCodec2 {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn encode<T>(&self, value: &T) -> CResult<Vec<u8>>
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn decode_bytes<R>(&self, value: &[u8], decode_len: bool) -> CResult<R> where R: for<'a> Deserialize<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn decode_cursor<R>(&self, cursor: &mut Cursor<&[u8]>) -> CResult<Option<R>> where R: for<'a> Deserialize<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]  --> src/mvcc/transaction.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Transaction<E: Engine> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/row/rows.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(Vec<String>);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Row` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(());
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::codec::json_codec::JsonCodec`
[INFO] [stdout]    --> src/storage/log_cask.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     use crate::codec::json_codec::JsonCodec;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Codec`
[INFO] [stdout]    --> src/storage/log_cask.rs:269:24
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use crate::codec::{Codec,};
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> src/codec/json_codec.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> src/codec/json_codec.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de, Deserialize};
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> src/codec/json_codec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::codec::bytes_codec::BytesCodec`
[INFO] [stdout]  --> src/codec/bytes_codec2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::codec::bytes_codec::BytesCodec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_terminal` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_terminal)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keydir`
[INFO] [stdout]    --> src/storage/log.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let keydir = log.build_keydir().unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_keydir`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]    --> src/storage/log.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let meta = file.metadata();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs`
[INFO] [stdout]    --> src/storage/log_cask.rs:340:13
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let rs = s.flush();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/storage/log_cask.rs:520:13
[INFO] [stdout]     |
[INFO] [stdout] 520 |         for i in 0..1024*4 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/codec/json_codec.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let rng = rand::thread_rng();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut bytes = Vec::new();
[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: `rng`
[INFO] [stdout]    --> src/codec/bytes_codec.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bytes` is never read
[INFO] [stdout]   --> src/codec/bytes_codec2.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut bytes = Vec::new();
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/codec/bytes_codec2.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/codec/bytes_codec2.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let rng = rand::thread_rng();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]  --> src/info.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let size = if status.is_ok() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `storage_path`
[INFO] [stdout]   --> src/lib.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let storage_path = "";
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_storage_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs`
[INFO] [stdout]    --> src/lib.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let rs = engine.flush();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]  --> src/mvcc/transaction.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Transaction<E: Engine> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/row/rows.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(Vec<String>);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Row` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Row(());
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.14s
[INFO] running `Command { std: "docker" "inspect" "38502078fac5f39ffff21397e0fb421b4fd80703b36440135d6e37a29a4e59a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38502078fac5f39ffff21397e0fb421b4fd80703b36440135d6e37a29a4e59a3", kill_on_drop: false }`
[INFO] [stdout] 38502078fac5f39ffff21397e0fb421b4fd80703b36440135d6e37a29a4e59a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f34fc74ce7a2a914c2ebfb71ad605b613391c767d228d4010264c1bf49df3588
[INFO] running `Command { std: "docker" "start" "-a" "f34fc74ce7a2a914c2ebfb71ad605b613391c767d228d4010264c1bf49df3588", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Read`, `Write`
[INFO] [stderr]  --> src/codec/json_codec.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserialize`
[INFO] [stderr]  --> src/codec/json_codec.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::{de, Deserialize};
[INFO] [stderr]   |                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stderr]  --> src/codec/json_codec.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use tokio::io::AsyncWriteExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::codec::bytes_codec::BytesCodec`
[INFO] [stderr]  --> src/codec/bytes_codec2.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::codec::bytes_codec::BytesCodec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `is_terminal` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(is_terminal)]
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `bytes` is never read
[INFO] [stderr]   --> src/codec/bytes_codec.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut bytes = Vec::new();
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `bytes` is never read
[INFO] [stderr]   --> src/codec/bytes_codec2.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let mut bytes = Vec::new();
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]  --> src/info.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let size = if status.is_ok() {
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `encode`, `decode_bytes`, and `decode_cursor` are never used
[INFO] [stderr]   --> src/codec/bytes_codec2.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl BytesCodec2 {
[INFO] [stderr]    | ---------------- associated items in this implementation
[INFO] [stderr] 15 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     pub fn encode<T>(&self, value: &T) -> CResult<Vec<u8>>
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn decode_bytes<R>(&self, value: &[u8], decode_len: bool) -> CResult<R> where R: for<'a> Deserialize<'a> {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |     pub fn decode_cursor<R>(&self, cursor: &mut Cursor<&[u8]>) -> CResult<Option<R>> where R: for<'a> Deserialize<'a> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Transaction` is never constructed
[INFO] [stderr]  --> src/mvcc/transaction.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Transaction<E: Engine> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/row/rows.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct Row(Vec<String>);
[INFO] [stderr]    |            --- ^^^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Row` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct Row(());
[INFO] [stderr]    |                ~~
[INFO] [stderr] 
[INFO] [stderr] warning: `kv-rs` (lib) generated 11 warnings (run `cargo fix --lib -p kv-rs` to apply 4 suggestions)
[INFO] [stderr] warning: unused import: `crate::codec::json_codec::JsonCodec`
[INFO] [stderr]    --> src/storage/log_cask.rs:268:9
[INFO] [stderr]     |
[INFO] [stderr] 268 |     use crate::codec::json_codec::JsonCodec;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Codec`
[INFO] [stderr]    --> src/storage/log_cask.rs:269:24
[INFO] [stderr]     |
[INFO] [stderr] 269 |     use crate::codec::{Codec,};
[INFO] [stderr]     |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Write`
[INFO] [stderr]  --> src/codec/json_codec.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keydir`
[INFO] [stderr]    --> src/storage/log.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let keydir = log.build_keydir().unwrap();
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_keydir`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `meta`
[INFO] [stderr]    --> src/storage/log.rs:165:13
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let meta = file.metadata();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs`
[INFO] [stderr]    --> src/storage/log_cask.rs:340:13
[INFO] [stderr]     |
[INFO] [stderr] 340 |         let rs = s.flush();
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/storage/log_cask.rs:520:13
[INFO] [stderr]     |
[INFO] [stderr] 520 |         for i in 0..1024*4 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/codec/json_codec.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let rng = rand::thread_rng();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/codec/bytes_codec.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let rng = rand::thread_rng();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/codec/bytes_codec2.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let rng = rand::thread_rng();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/codec/bytes_codec2.rs:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |         let rng = rand::thread_rng();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]  --> src/info.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let size = if status.is_ok() {
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `storage_path`
[INFO] [stderr]   --> src/lib.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let storage_path = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_storage_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs`
[INFO] [stderr]    --> src/lib.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let rs = engine.flush();
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rs`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Transaction` is never constructed
[INFO] [stderr]  --> src/mvcc/transaction.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Transaction<E: Engine> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kv-rs` (lib test) generated 22 warnings (7 duplicates) (run `cargo fix --lib -p kv-rs --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kv_rs-657d16e373249a79)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test codec::bytes_codec2::test::test_decode_cursor ... ok
[INFO] [stdout] test codec::bytes_codec::test::test_decode_bytes ... ok
[INFO] [stdout] test storage::engine::test::test ... ok
[INFO] [stdout] test codec::json_codec::test::test_json_decode ... ok
[INFO] [stdout] test codec::bytes_codec::test::test_decode_cursor ... ok
[INFO] [stdout] test storage::log::test::test ... ok
[INFO] [stdout] test storage::log_cask::tests::log_lock ... ok
[INFO] [stdout] test codec::bytes_codec2::test::test_decode_bytes ... ok
[INFO] [stdout] test storage::log_cask::tests::point_ops ... ok
[INFO] [stdout] test storage::log_cask::tests::point_ops_empty ... ok
[INFO] [stdout] test storage::log_cask::tests::scan ... ok
[INFO] [stdout] test storage::log_cask::tests::reopen ... ok
[INFO] [stdout] test storage::log_cask::tests::status ... ok
[INFO] [stdout] test storage::log_cask::tests::scan_prefix ... ok
[INFO] [stdout] test storage::memory::tests::point_ops ... ok
[INFO] [stdout] test storage::memory::tests::point_ops_empty ... ok
[INFO] [stdout] test storage::log_cask::tests::test_log_with_bytes_persion ... ok
[INFO] [stdout] test storage::log_cask::tests::test_log ... ok
[INFO] [stdout] test storage::memory::tests::scan ... ok
[INFO] [stdout] test storage::memory::tests::scan_prefix ... ok
[INFO] [stdout] test storage::memory::tests::status ... ok
[INFO] [stdout] test storage::log_cask::tests::random_ops ... ok
[INFO] [stdout] test storage::tests::test ... ok
[INFO] [stdout] test storage::log_cask::tests::test_status_full ... ok
[INFO] [stdout] test test::run ... ok
[INFO] [stdout] test storage::log_cask::tests::new_compact ... ok
[INFO] [stdout] test storage::memory::tests::random_ops ... ok
[INFO] [stdout] test storage::memory::tests::point_ops_sizes ... ok
[INFO] [stdout] test storage::log_cask::tests::recovery ... ok
[INFO] [stderr]    Doc-tests kv_rs
[INFO] [stdout] test storage::log_cask::tests::point_ops_sizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.82s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] Hello, kv CLI!
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:12:11:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Internal("Read-only file system (os error 30):Some(\"D:/workspace/kv/storage\")")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55dbc8e8b6e5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55dbc8e8b6e5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55dbc8e8b6e5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55dbc8e8b6e5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55dbc8ea8c6b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55dbc8ea8c6b - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55dbc8e8969f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55dbc8e8b4be - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55dbc8e8b4be - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55dbc8e8c829 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x55dbc8e8c56d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x55dbc8e8ccc3 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x55dbc8e8cba4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x55dbc8e8bba9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x55dbc8e8c8d7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x55dbc8e43ef3 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55dbc8e443e6 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x55dbc8e48c04 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   18:     0x55dbc8e45423 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   19:     0x55dbc8e45056 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   20:     0x55dbc8e450a9 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   21:     0x55dbc8e8652d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   22:     0x55dbc8e8652d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   23:     0x55dbc8e8652d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   24:     0x55dbc8e8652d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   25:     0x55dbc8e8652d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   26:     0x55dbc8e8652d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   27:     0x55dbc8e8652d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   28:     0x55dbc8e8652d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   29:     0x55dbc8e8652d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   30:     0x55dbc8e45087 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   31:     0x55dbc8e4a025 - main
[INFO] [stdout]   32:     0x7f394d54cd90 - <unknown>
[INFO] [stdout]   33:     0x7f394d54ce40 - __libc_start_main
[INFO] [stdout]   34:     0x55dbc8e44645 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.35s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f34fc74ce7a2a914c2ebfb71ad605b613391c767d228d4010264c1bf49df3588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34fc74ce7a2a914c2ebfb71ad605b613391c767d228d4010264c1bf49df3588", kill_on_drop: false }`
[INFO] [stdout] f34fc74ce7a2a914c2ebfb71ad605b613391c767d228d4010264c1bf49df3588
