[INFO] cloning repository https://github.com/tannal/tjdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tannal/tjdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftannal%2Ftjdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftannal%2Ftjdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb0d2a42e9d011504b5b23ab1ce1fe4643a57999
[INFO] checking tannal/tjdb against master#cf79d034aa3d8f396d407aafce6f1ccd818e710e for pr-155657-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftannal%2Ftjdb" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tannal/tjdb
[INFO] finished tweaking git repo https://github.com/tannal/tjdb
[INFO] tweaked toml for git repo https://github.com/tannal/tjdb written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tannal/tjdb on toolchain cf79d034aa3d8f396d407aafce6f1ccd818e710e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tannal/tjdb 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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36d3c37486ec800c84bce9131f4d998818b7b24c13e7f9ef0db32969c58a9b4f
[INFO] running `Command { std: "docker" "start" "-a" "36d3c37486ec800c84bce9131f4d998818b7b24c13e7f9ef0db32969c58a9b4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d3c37486ec800c84bce9131f4d998818b7b24c13e7f9ef0db32969c58a9b4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d3c37486ec800c84bce9131f4d998818b7b24c13e7f9ef0db32969c58a9b4f", kill_on_drop: false }`
[INFO] [stdout] 36d3c37486ec800c84bce9131f4d998818b7b24c13e7f9ef0db32969c58a9b4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 472ca827a49bf1e1b63907bd2c04efe9f59658614c7af6cdc3c4b0863460dfa7
[INFO] running `Command { std: "docker" "start" "-a" "472ca827a49bf1e1b63907bd2c04efe9f59658614c7af6cdc3c4b0863460dfa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking dbms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/operator/aggregate.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |     use super::*;
[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: `AggregateFunc` and `SelectItem`
[INFO] [stdout]    --> src/operator/aggregate.rs:127:31
[INFO] [stdout]     |
[INFO] [stdout] 127 |     use crate::parser::{self, AggregateFunc, SelectItem};
[INFO] [stdout]     |                               ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/network/server.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             _ => "Unsupported statement.".to_string(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/network/server.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Statement::CreateTable(cs) => match db.apply_create_table(cs) {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 119 |             Statement::Begin => match db.begin_transaction() {
[INFO] [stdout]     |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 123 |             Statement::Commit => match db.commit_transaction() {
[INFO] [stdout]     |             ----------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 127 |             Statement::Rollback => {
[INFO] [stdout]     |             ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 146 |             _ => "Unsupported statement.".to_string(),
[INFO] [stdout]     |             ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network/server.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let mut output = String::new();
[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: `output`
[INFO] [stdout]    --> src/network/server.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let mut output = String::new();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss`
[INFO] [stdout]    --> src/network/server.rs:145:31
[INFO] [stdout]     |
[INFO] [stdout] 145 |             Statement::Select(ss) => process_query_internal(db, executor, sql),
[INFO] [stdout]     |                               ^^ help: if this is intentional, prefix it with an underscore: `_ss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_checkpoint` and `shutdown` are never used
[INFO] [stdout]    --> src/database.rs:254:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Database {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 254 |     pub fn create_checkpoint(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |     pub fn shutdown(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_token` is never used
[INFO] [stdout]    --> src/lexer.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout]  39 | impl Lexer {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn peek_token(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table_schema` is never read
[INFO] [stdout]   --> src/operator/filter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct FilterOperator<'a> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     table_schema: &'a Table, // 用于 evaluate 时查找列索引
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `bind_expression` is never used
[INFO] [stdout]   --> src/operator/filter.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl<'a> FilterOperator<'a> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn bind_expression(expr: &Expression, table: &Table) -> Result<PhysicalExpression, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table_metadata` is never read
[INFO] [stdout]  --> src/operator/aggregate.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct AggregateOperator<'a> {
[INFO] [stdout]   |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     table_metadata: &'a Table,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_csv_string` is never used
[INFO] [stdout]   --> src/storage.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 24 |     pub fn to_csv_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_to_disk` is never used
[INFO] [stdout]   --> src/storage.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl Table {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn save_to_disk(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `truncate` and `dump_log` are never used
[INFO] [stdout]    --> src/wal.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout]  47 | impl WalManager {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn truncate(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn dump_log(&self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save` is never used
[INFO] [stdout]   --> src/checkpoint.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Checkpoint {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn save(&self, path: &PathBuf) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]  --> src/network/protocol.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Request {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Response` is never used
[INFO] [stdout]   --> src/network/protocol.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Response {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/network/server.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             _ => "Unsupported statement.".to_string(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/network/server.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Statement::CreateTable(cs) => match db.apply_create_table(cs) {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 119 |             Statement::Begin => match db.begin_transaction() {
[INFO] [stdout]     |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 123 |             Statement::Commit => match db.commit_transaction() {
[INFO] [stdout]     |             ----------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 127 |             Statement::Rollback => {
[INFO] [stdout]     |             ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 146 |             _ => "Unsupported statement.".to_string(),
[INFO] [stdout]     |             ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network/server.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let mut output = String::new();
[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: `output`
[INFO] [stdout]    --> src/network/server.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let mut output = String::new();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss`
[INFO] [stdout]    --> src/network/server.rs:145:31
[INFO] [stdout]     |
[INFO] [stdout] 145 |             Statement::Select(ss) => process_query_internal(db, executor, sql),
[INFO] [stdout]     |                               ^^ help: if this is intentional, prefix it with an underscore: `_ss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_checkpoint` and `shutdown` are never used
[INFO] [stdout]    --> src/database.rs:254:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Database {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 254 |     pub fn create_checkpoint(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |     pub fn shutdown(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_token` is never used
[INFO] [stdout]    --> src/lexer.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout]  39 | impl Lexer {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn peek_token(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table_schema` is never read
[INFO] [stdout]   --> src/operator/filter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct FilterOperator<'a> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     table_schema: &'a Table, // 用于 evaluate 时查找列索引
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `bind_expression` is never used
[INFO] [stdout]   --> src/operator/filter.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl<'a> FilterOperator<'a> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn bind_expression(expr: &Expression, table: &Table) -> Result<PhysicalExpression, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `table_metadata` is never read
[INFO] [stdout]  --> src/operator/aggregate.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct AggregateOperator<'a> {
[INFO] [stdout]   |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     table_metadata: &'a Table,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_csv_string` is never used
[INFO] [stdout]   --> src/storage.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 24 |     pub fn to_csv_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_to_disk` is never used
[INFO] [stdout]   --> src/storage.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl Table {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn save_to_disk(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `truncate` and `dump_log` are never used
[INFO] [stdout]    --> src/wal.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout]  47 | impl WalManager {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn truncate(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn dump_log(&self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save` is never used
[INFO] [stdout]   --> src/checkpoint.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Checkpoint {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn save(&self, path: &PathBuf) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]  --> src/network/protocol.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Request {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Response` is never used
[INFO] [stdout]   --> src/network/protocol.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Response {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.79s
[INFO] running `Command { std: "docker" "inspect" "472ca827a49bf1e1b63907bd2c04efe9f59658614c7af6cdc3c4b0863460dfa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "472ca827a49bf1e1b63907bd2c04efe9f59658614c7af6cdc3c4b0863460dfa7", kill_on_drop: false }`
[INFO] [stdout] 472ca827a49bf1e1b63907bd2c04efe9f59658614c7af6cdc3c4b0863460dfa7
