[INFO] cloning repository https://github.com/hyperinactive/blitz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hyperinactive/blitz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyperinactive%2Fblitz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyperinactive%2Fblitz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f279b27e106e89bc1f12ffe7f8b390af3b961bf
[INFO] building hyperinactive/blitz against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyperinactive%2Fblitz" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hyperinactive/blitz on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hyperinactive/blitz
[INFO] finished tweaking git repo https://github.com/hyperinactive/blitz
[INFO] tweaked toml for git repo https://github.com/hyperinactive/blitz written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hyperinactive/blitz 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dotenv v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b93255e967f71789bc8974ba842a608a9dde9d1261562e73fc8b4a7b53847b7
[INFO] running `Command { std: "docker" "start" "-a" "5b93255e967f71789bc8974ba842a608a9dde9d1261562e73fc8b4a7b53847b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b93255e967f71789bc8974ba842a608a9dde9d1261562e73fc8b4a7b53847b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b93255e967f71789bc8974ba842a608a9dde9d1261562e73fc8b4a7b53847b7", kill_on_drop: false }`
[INFO] [stdout] 5b93255e967f71789bc8974ba842a608a9dde9d1261562e73fc8b4a7b53847b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b66d77c0ee8cdcce75aa5b4643c9845e40e506ce822005b488176c314f40aea9
[INFO] running `Command { std: "docker" "start" "-a" "b66d77c0ee8cdcce75aa5b4643c9845e40e506ce822005b488176c314f40aea9", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling blitzcrank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `backend::server::Server`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use backend::server::Server;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `BufReader`
[INFO] [stdout]  --> src/backend/server.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/cli/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/cli/client.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, error};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`, `Cell`, `RefCell`, and `rc::Rc`
[INFO] [stdout]  --> src/cli/lexer.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     cell::{Cell, RefCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::database::Database`
[INFO] [stdout]  --> src/cli/processor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::core::database::Database;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `BorrowMut`, `Borrow`, `Cell`, and `Mutex`
[INFO] [stdout]  --> src/op_creator.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     cell::{Cell, RefCell},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout] 5 |     sync::{Arc, Mutex},
[INFO] [stdout]   |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:53:18
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_ident(s: Structure, ident: String) -> impl DbStruct {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/op_creator.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_ident(s: Structure, ident: String) -> impl DbStruct {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/cli/client.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn send_one_command(command: &str) -> Result<String, Box<dyn error::Error + Send + Sync>> {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/cli/client.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut stream = TcpStream::connect("127.0.0.1:8080");
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cli/client.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut stream = TcpStream::connect("127.0.0.1:8080");
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i_len`
[INFO] [stdout]    --> src/cli/lexer.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let i_len = input.len();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/cli/lexer.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut i: usize = 0;
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp_input`
[INFO] [stdout]    --> src/cli/lexer.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let mut temp_input = String::from("");
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_iter`
[INFO] [stdout]    --> src/cli/lexer.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let mut input_iter = input.chars().enumerate();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/cli/lexer.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let mut index: usize = 0;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_length`
[INFO] [stdout]    --> src/cli/lexer.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let input_length: usize = input.bytes().len();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let mut token_output: Vec<Token> = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut i: usize = 0;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let mut temp_input = String::from("");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let mut input_iter = input.chars().enumerate();
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let mut index: usize = 0;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn execute_create(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn execute_read(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn execute_update(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn execute_delete(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_struct` is assigned to, but never used
[INFO] [stdout]   --> src/op_creator.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut current_struct: Rc<Token>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_struct` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_action` is assigned to, but never used
[INFO] [stdout]   --> src/op_creator.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let mut current_action: Rc<Token>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_action` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_action` is never read
[INFO] [stdout]    --> src/op_creator.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   current_action = Rc::new(tokens[i].clone());
[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 `current_struct` is never read
[INFO] [stdout]    --> src/op_creator.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   current_struct = Rc::new(tokens[i].clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cli/client.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         Client::send_one_command("hi");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = Client::send_one_command("hi");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "b66d77c0ee8cdcce75aa5b4643c9845e40e506ce822005b488176c314f40aea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b66d77c0ee8cdcce75aa5b4643c9845e40e506ce822005b488176c314f40aea9", kill_on_drop: false }`
[INFO] [stdout] b66d77c0ee8cdcce75aa5b4643c9845e40e506ce822005b488176c314f40aea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 280ad335f9e97de7d67aaa1860c011b6b5f9168e61a82f5f30a889e971bf540e
[INFO] running `Command { std: "docker" "start" "-a" "280ad335f9e97de7d67aaa1860c011b6b5f9168e61a82f5f30a889e971bf540e", kill_on_drop: false }`
[INFO] [stderr]    Compiling blitzcrank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `backend::server::Server`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use backend::server::Server;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `BufReader`
[INFO] [stdout]  --> src/backend/server.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/cli/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/cli/client.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, error};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`, `Cell`, `RefCell`, and `rc::Rc`
[INFO] [stdout]  --> src/cli/lexer.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     cell::{Cell, RefCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::core::database::Database`
[INFO] [stdout]  --> src/cli/processor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::core::database::Database;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `BorrowMut`, `Borrow`, `Cell`, and `Mutex`
[INFO] [stdout]  --> src/op_creator.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     cell::{Cell, RefCell},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout] 5 |     sync::{Arc, Mutex},
[INFO] [stdout]   |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:53:18
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_ident(s: Structure, ident: String) -> impl DbStruct {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/op_creator.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn get_ident(s: Structure, ident: String) -> impl DbStruct {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/cli/client.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn send_one_command(command: &str) -> Result<String, Box<dyn error::Error + Send + Sync>> {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/cli/client.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut stream = TcpStream::connect("127.0.0.1:8080");
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cli/client.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut stream = TcpStream::connect("127.0.0.1:8080");
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i_len`
[INFO] [stdout]    --> src/cli/lexer.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let i_len = input.len();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_i_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/cli/lexer.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut i: usize = 0;
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp_input`
[INFO] [stdout]    --> src/cli/lexer.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let mut temp_input = String::from("");
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_iter`
[INFO] [stdout]    --> src/cli/lexer.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let mut input_iter = input.chars().enumerate();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/cli/lexer.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let mut index: usize = 0;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_length`
[INFO] [stdout]    --> src/cli/lexer.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let input_length: usize = input.bytes().len();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let mut token_output: Vec<Token> = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut i: usize = 0;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let mut temp_input = String::from("");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let mut input_iter = input.chars().enumerate();
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli/lexer.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let mut index: usize = 0;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn execute_create(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn execute_read(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn execute_update(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/op_creator.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn execute_delete(s: Rc<RefCell<impl DbStruct>>) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_struct` is assigned to, but never used
[INFO] [stdout]   --> src/op_creator.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut current_struct: Rc<Token>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_struct` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_action` is assigned to, but never used
[INFO] [stdout]   --> src/op_creator.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let mut current_action: Rc<Token>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current_action` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_action` is never read
[INFO] [stdout]    --> src/op_creator.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   current_action = Rc::new(tokens[i].clone());
[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 `current_struct` is never read
[INFO] [stdout]    --> src/op_creator.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   current_struct = Rc::new(tokens[i].clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cli/client.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         Client::send_one_command("hi");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = Client::send_one_command("hi");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "280ad335f9e97de7d67aaa1860c011b6b5f9168e61a82f5f30a889e971bf540e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280ad335f9e97de7d67aaa1860c011b6b5f9168e61a82f5f30a889e971bf540e", kill_on_drop: false }`
[INFO] [stdout] 280ad335f9e97de7d67aaa1860c011b6b5f9168e61a82f5f30a889e971bf540e
