[INFO] cloning repository https://github.com/sjtitus/kv-store
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjtitus/kv-store" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjtitus%2Fkv-store", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjtitus%2Fkv-store'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f310cc9062a463ed40997de80f10460c5434648d
[INFO] testing sjtitus/kv-store against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjtitus%2Fkv-store" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sjtitus/kv-store
[INFO] finished tweaking git repo https://github.com/sjtitus/kv-store
[INFO] tweaked toml for git repo https://github.com/sjtitus/kv-store written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sjtitus/kv-store on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sjtitus/kv-store 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jiff-static v0.2.17
[INFO] [stderr]   Downloaded jiff v0.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a923cee005bec6cf354126cdf4107d27f59b186f4d2b2efb10cc9001b674fa34
[INFO] running `Command { std: "docker" "start" "-a" "a923cee005bec6cf354126cdf4107d27f59b186f4d2b2efb10cc9001b674fa34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a923cee005bec6cf354126cdf4107d27f59b186f4d2b2efb10cc9001b674fa34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a923cee005bec6cf354126cdf4107d27f59b186f4d2b2efb10cc9001b674fa34", kill_on_drop: false }`
[INFO] [stdout] a923cee005bec6cf354126cdf4107d27f59b186f4d2b2efb10cc9001b674fa34
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55b45454d68dcda6fced23543f621eb02c76ac58c1dc302e8fbe5e9f99b903ab
[INFO] running `Command { std: "docker" "start" "-a" "55b45454d68dcda6fced23543f621eb02c76ac58c1dc302e8fbe5e9f99b903ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling jiff v0.2.17
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling syn v2.0.112
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling kv_store v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> kv_log_datastore/header.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{self, Read, Seek, SeekFrom, Write};
[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 imports: `error`, `info`, and `warn`
[INFO] [stdout]   --> kv_log_datastore/mod.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stdout]  --> main.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `store`
[INFO] [stdout]   --> kv_log_memindex/mod.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CorruptLog` and `IndexError` are never constructed
[INFO] [stdout]   --> error.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum KVLogError {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     CorruptLog(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     IndexError(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `KVLogError` 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: methods `delete`, `get_datarecord`, and `get_value` are never used
[INFO] [stdout]    --> kv_log_datastore/mod.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl KVLogDataStore {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn delete(&mut self, key: &[u8]) -> Result<DataRecord> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     pub fn get_datarecord(&mut self, offset: u64) -> Result<DataRecord> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn get_value(&mut self, offset: u64) -> Result<Vec<u8>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Delete` is never constructed
[INFO] [stdout]   --> kv_log_datastore/datarecord.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum DataRecordType {
[INFO] [stdout]    |          -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Delete,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataRecordType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_delete` and `read_from_file` are never used
[INFO] [stdout]   --> kv_log_datastore/datarecord.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl DataRecord {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn new_delete(key: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn read_from_file(f: &mut File) -> Result<DataRecord> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVLogMemIndex` is never constructed
[INFO] [stdout]  --> kv_log_memindex/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct KVLogMemIndex {}
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_from_store` is never used
[INFO] [stdout]   --> kv_log_memindex/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl KVLogMemIndex {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KVStore` is never used
[INFO] [stdout]   --> kv_log_store/mod.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait KVStore {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVLogStore` is never constructed
[INFO] [stdout]   --> kv_log_store/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct KVLogStore {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `open` is never used
[INFO] [stdout]   --> kv_log_store/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl KVLogStore {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn open(path: impl AsRef<Path>) -> Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.95s
[INFO] running `Command { std: "docker" "inspect" "55b45454d68dcda6fced23543f621eb02c76ac58c1dc302e8fbe5e9f99b903ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b45454d68dcda6fced23543f621eb02c76ac58c1dc302e8fbe5e9f99b903ab", kill_on_drop: false }`
[INFO] [stdout] 55b45454d68dcda6fced23543f621eb02c76ac58c1dc302e8fbe5e9f99b903ab
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7959de0625d6f3d9a7085784589e4f2db5e1f4209d371320d9a1089de96fc14
[INFO] running `Command { std: "docker" "start" "-a" "d7959de0625d6f3d9a7085784589e4f2db5e1f4209d371320d9a1089de96fc14", kill_on_drop: false }`
[INFO] [stderr]    Compiling kv_store v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> kv_log_datastore/header.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{self, Read, Seek, SeekFrom, Write};
[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 imports: `error`, `info`, and `warn`
[INFO] [stdout]   --> kv_log_datastore/mod.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stdout]  --> main.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{debug, error, info, warn};
[INFO] [stdout]   |                  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `store`
[INFO] [stdout]   --> kv_log_memindex/mod.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CorruptLog` and `IndexError` are never constructed
[INFO] [stdout]   --> error.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum KVLogError {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     CorruptLog(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     IndexError(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `KVLogError` 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: methods `delete`, `get_datarecord`, and `get_value` are never used
[INFO] [stdout]    --> kv_log_datastore/mod.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl KVLogDataStore {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn delete(&mut self, key: &[u8]) -> Result<DataRecord> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     pub fn get_datarecord(&mut self, offset: u64) -> Result<DataRecord> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn get_value(&mut self, offset: u64) -> Result<Vec<u8>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Delete` is never constructed
[INFO] [stdout]   --> kv_log_datastore/datarecord.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum DataRecordType {
[INFO] [stdout]    |          -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Delete,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataRecordType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_delete` and `read_from_file` are never used
[INFO] [stdout]   --> kv_log_datastore/datarecord.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl DataRecord {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn new_delete(key: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn read_from_file(f: &mut File) -> Result<DataRecord> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVLogMemIndex` is never constructed
[INFO] [stdout]  --> kv_log_memindex/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct KVLogMemIndex {}
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load_from_store` is never used
[INFO] [stdout]   --> kv_log_memindex/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl KVLogMemIndex {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KVStore` is never used
[INFO] [stdout]   --> kv_log_store/mod.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait KVStore {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVLogStore` is never constructed
[INFO] [stdout]   --> kv_log_store/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct KVLogStore {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `open` is never used
[INFO] [stdout]   --> kv_log_store/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl KVLogStore {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn open(path: impl AsRef<Path>) -> Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "d7959de0625d6f3d9a7085784589e4f2db5e1f4209d371320d9a1089de96fc14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7959de0625d6f3d9a7085784589e4f2db5e1f4209d371320d9a1089de96fc14", kill_on_drop: false }`
[INFO] [stdout] d7959de0625d6f3d9a7085784589e4f2db5e1f4209d371320d9a1089de96fc14
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 322f8d677c8aaa51ba5b7b2da6a3770a44bf3ee70ddf6516d0b772e6340d249c
[INFO] running `Command { std: "docker" "start" "-a" "322f8d677c8aaa51ba5b7b2da6a3770a44bf3ee70ddf6516d0b772e6340d249c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> kv_log_datastore/header.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{self, Read, Seek, SeekFrom, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stderr]   --> kv_log_datastore/mod.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 | use log::{debug, error, info, warn};
[INFO] [stderr]    |                  ^^^^^  ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stderr]  --> main.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | use log::{debug, error, info, warn};
[INFO] [stderr]   |                  ^^^^^  ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store`
[INFO] [stderr]   --> kv_log_memindex/mod.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_store`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `CorruptLog` and `IndexError` are never constructed
[INFO] [stderr]   --> error.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr]  7 | pub enum KVLogError {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 12 |     CorruptLog(String),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     IndexError(String),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `KVLogError` 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: methods `delete`, `get_datarecord`, and `get_value` are never used
[INFO] [stderr]    --> kv_log_datastore/mod.rs:85:12
[INFO] [stderr]     |
[INFO] [stderr]  23 | impl KVLogDataStore {
[INFO] [stderr]     | ------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  85 |     pub fn delete(&mut self, key: &[u8]) -> Result<DataRecord> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  93 |     pub fn get_datarecord(&mut self, offset: u64) -> Result<DataRecord> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     pub fn get_value(&mut self, offset: u64) -> Result<Vec<u8>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Delete` is never constructed
[INFO] [stderr]   --> kv_log_datastore/datarecord.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub enum DataRecordType {
[INFO] [stderr]    |          -------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 13 |     Delete,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DataRecordType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `new_delete` and `read_from_file` are never used
[INFO] [stderr]   --> kv_log_datastore/datarecord.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | impl DataRecord {
[INFO] [stderr]    | --------------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 65 |     pub fn new_delete(key: &[u8]) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 85 |     pub fn read_from_file(f: &mut File) -> Result<DataRecord> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `KVLogMemIndex` is never constructed
[INFO] [stderr]  --> kv_log_memindex/mod.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct KVLogMemIndex {}
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `load_from_store` is never used
[INFO] [stderr]   --> kv_log_memindex/mod.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl KVLogMemIndex {
[INFO] [stderr]    | ------------------ associated function in this implementation
[INFO] [stderr] 12 |     pub fn load_from_store(store: &KVLogDataStore) -> Result<Self> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `KVStore` is never used
[INFO] [stderr]   --> kv_log_store/mod.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait KVStore {
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `KVLogStore` is never constructed
[INFO] [stderr]   --> kv_log_store/mod.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct KVLogStore {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `open` is never used
[INFO] [stderr]   --> kv_log_store/mod.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl KVLogStore {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn open(path: impl AsRef<Path>) -> Result<Self> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kv_store` (bin "kv_store" test) generated 13 warnings (run `cargo fix --bin "kv_store" -p kv_store --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/debug/deps/kv_store-fea05a3214fcbe97)
[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] running `Command { std: "docker" "inspect" "322f8d677c8aaa51ba5b7b2da6a3770a44bf3ee70ddf6516d0b772e6340d249c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "322f8d677c8aaa51ba5b7b2da6a3770a44bf3ee70ddf6516d0b772e6340d249c", kill_on_drop: false }`
[INFO] [stdout] 322f8d677c8aaa51ba5b7b2da6a3770a44bf3ee70ddf6516d0b772e6340d249c
