[INFO] cloning repository https://github.com/5witchkr/rust-db-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/5witchkr/rust-db-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5witchkr%2Frust-db-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5witchkr%2Frust-db-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5237dcec67b3645a4c533aad63ffdbc91f52382
[INFO] checking 5witchkr/rust-db-study against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5witchkr%2Frust-db-study" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/5witchkr/rust-db-study on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/5witchkr/rust-db-study
[INFO] finished tweaking git repo https://github.com/5witchkr/rust-db-study
[INFO] tweaked toml for git repo https://github.com/5witchkr/rust-db-study written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/5witchkr/rust-db-study 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a9890fe8f9789c6296136140f541d178e49d8c591d48ff10fd14e2ed7387757
[INFO] running `Command { std: "docker" "start" "-a" "4a9890fe8f9789c6296136140f541d178e49d8c591d48ff10fd14e2ed7387757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a9890fe8f9789c6296136140f541d178e49d8c591d48ff10fd14e2ed7387757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9890fe8f9789c6296136140f541d178e49d8c591d48ff10fd14e2ed7387757", kill_on_drop: false }`
[INFO] [stdout] 4a9890fe8f9789c6296136140f541d178e49d8c591d48ff10fd14e2ed7387757
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 541109691b585a716b21651d9c00a21cd1a130f5844328a9e71968701abee1af
[INFO] running `Command { std: "docker" "start" "-a" "541109691b585a716b21651d9c00a21cd1a130f5844328a9e71968701abee1af", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `hint::black_box`, `process::Termination`, and `time::Instant`
[INFO] [stdout]    --> src/lexer.rs:152:15
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use std::{hint::black_box, process::Termination, time::Instant};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::Token`
[INFO] [stdout]    --> src/lexer.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use crate::token::Token;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LexerError`, `Lexer`, and `SimpleLexer`
[INFO] [stdout]    --> src/lexer.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |     use super::{Lexer, LexerError, SimpleLexer};
[INFO] [stdout]     |                 ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CreateStatement`, `ParserError`, `Parser`, `SQLParser`, `SQLStatement`, `SimpleParser`, `create::CreateStatementParser`, and `token::Token`
[INFO] [stdout]   --> src/parser/create.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ast::{CreateStatement, SQLStatement},
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 48 |         parser::{
[INFO] [stdout] 49 |             create::CreateStatementParser,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 50 |             parser::{Parser, ParserError, SQLParser, SimpleParser},
[INFO] [stdout]    |                      ^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 51 |         },
[INFO] [stdout] 52 |         token::Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParserError`, `SQLParser`, `SimpleParser`, `ast::SQLStatement`, `delete::DeleteStatementParser`, and `token::Token`
[INFO] [stdout]   --> src/parser/delete.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         ast::SQLStatement,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 57 |         parser::{
[INFO] [stdout] 58 |             delete::DeleteStatementParser,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 59 |             parser::{ParserError, SQLParser, SimpleParser},
[INFO] [stdout]    |                      ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 60 |         },
[INFO] [stdout] 61 |         token::Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParserError`, `SQLParser`, `SimpleParser`, `ast::SQLStatement`, `drop::DropStatementParser`, and `token::Token`
[INFO] [stdout]   --> src/parser/drop.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         ast::SQLStatement,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |         parser::{
[INFO] [stdout] 30 |             drop::DropStatementParser,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |             parser::{ParserError, SQLParser, SimpleParser},
[INFO] [stdout]    |                      ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 32 |         },
[INFO] [stdout] 33 |         token::Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParserError`, `SQLParser`, `SimpleParser`, `ast::SQLStatement`, `insert::InsertStatementParser`, and `token::Token`
[INFO] [stdout]   --> src/parser/insert.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         ast::SQLStatement,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 69 |         parser::{
[INFO] [stdout] 70 |             insert::InsertStatementParser,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 71 |             parser::{ParserError, SQLParser, SimpleParser},
[INFO] [stdout]    |                      ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 72 |         },
[INFO] [stdout] 73 |         token::Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/parser/update.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdout`
[INFO] [stdout]  --> src/parser/update.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::stdout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParserError`, `SQLParser`, `SimpleParser`, `ast::SQLStatement`, `token::Token`, and `update::UpdateStatementParser`
[INFO] [stdout]    --> src/parser/update.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         ast::SQLStatement,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 107 |         parser::{
[INFO] [stdout] 108 |             parser::{ParserError, SQLParser, SimpleParser},
[INFO] [stdout]     |                      ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 109 |             update::UpdateStatementParser,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 110 |         },
[INFO] [stdout] 111 |         token::Token,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/parser/select.rs:2:42
[INFO] [stdout]   |
[INFO] [stdout] 2 |     ast::{SelectStatement, SQLStatement, Expression},
[INFO] [stdout]   |                                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParserError`, `SQLParser`, `SQLStatement`, `SelectStatement`, `SimpleParser`, `select::SelectStatementParser`, `token::Token`, and `types::DBError`
[INFO] [stdout]   --> src/parser/select.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |         ast::{SQLStatement, SelectStatement},
[INFO] [stdout]    |               ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 52 |         parser::{
[INFO] [stdout] 53 |             parser::{ParserError, SQLParser, SimpleParser}, select::SelectStatementParser
[INFO] [stdout]    |                      ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 54 |         },
[INFO] [stdout] 55 |         token::Token, types::DBError,
[INFO] [stdout]    |         ^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Termination`
[INFO] [stdout]    --> src/lexer.rs:152:32
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use std::{hint::black_box, process::Termination, time::Instant};
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CreateStatement` and `Parser`
[INFO] [stdout]   --> src/parser/create.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ast::{CreateStatement, SQLStatement},
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |             parser::{Parser, ParserError, SQLParser, SimpleParser},
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/parser/update.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdout`
[INFO] [stdout]  --> src/parser/update.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::stdout;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/parser/select.rs:2:42
[INFO] [stdout]   |
[INFO] [stdout] 2 |     ast::{SelectStatement, SQLStatement, Expression},
[INFO] [stdout]   |                                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types::DBError`
[INFO] [stdout]   --> src/parser/select.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 |         token::Token, types::DBError,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DDL` is never used
[INFO] [stdout]  --> src/ddl.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DDL<T> {
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DML` is never used
[INFO] [stdout]  --> src/dml.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DML<T> {
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tokenize` is never used
[INFO] [stdout]  --> src/lexer.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Tokenize<ERR> {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CreateStatementParser` is never constructed
[INFO] [stdout]  --> src/parser/create.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct CreateStatementParser;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeleteStatementParser` is never constructed
[INFO] [stdout]  --> src/parser/delete.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct DeleteStatementParser;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DropStatementParser` is never constructed
[INFO] [stdout]  --> src/parser/drop.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct DropStatementParser;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InsertStatementParser` is never constructed
[INFO] [stdout]  --> src/parser/insert.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct InsertStatementParser;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SQLParser` is never used
[INFO] [stdout]  --> src/parser/parser.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait SQLParser<P, ERR> {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/parser/parser.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl SimpleParser {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 46 |     pub fn new(tokens: Vec<Token>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UpdateStatementParser` is never constructed
[INFO] [stdout]   --> src/parser/update.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct UpdateStatementParser;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectStatementParser` is never constructed
[INFO] [stdout]  --> src/parser/select.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct SelectStatementParser;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TableValue` is never constructed
[INFO] [stdout]  --> src/types.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TableValue<T>(String, T);
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TableName` is never constructed
[INFO] [stdout]  --> src/types.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct TableName(String);
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `and_cause` is never used
[INFO] [stdout]  --> src/types.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait DBError {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn cause(msg: &str) -> Self;
[INFO] [stdout] 5 |     fn and_cause(self, msg: &str) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DDL` is never used
[INFO] [stdout]  --> src/ddl.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DDL<T> {
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DML` is never used
[INFO] [stdout]  --> src/dml.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DML<T> {
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tokenize` is never used
[INFO] [stdout]  --> src/lexer.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Tokenize<ERR> {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TableValue` is never constructed
[INFO] [stdout]  --> src/types.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TableValue<T>(String, T);
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TableName` is never constructed
[INFO] [stdout]  --> src/types.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct TableName(String);
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `and_cause` is never used
[INFO] [stdout]  --> src/types.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait DBError {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn cause(msg: &str) -> Self;
[INFO] [stdout] 5 |     fn and_cause(self, msg: &str) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "541109691b585a716b21651d9c00a21cd1a130f5844328a9e71968701abee1af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541109691b585a716b21651d9c00a21cd1a130f5844328a9e71968701abee1af", kill_on_drop: false }`
[INFO] [stdout] 541109691b585a716b21651d9c00a21cd1a130f5844328a9e71968701abee1af
