[INFO] updating cached repository https://github.com/charliethomson/pemdrs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/charliethomson/pemdrs
[INFO] [stderr]    147c97d..19f6389  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 19f63891027ee12279edd4a73ace93d1ba04d9af
[INFO] checking charliethomson/pemdrs against master#b1f395de642e8be7bcbbd2bd8aaadab715851f49 for pr-69410
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharliethomson%2Fpemdrs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/charliethomson/pemdrs on toolchain b1f395de642e8be7bcbbd2bd8aaadab715851f49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/charliethomson/pemdrs
[INFO] finished tweaking git repo https://github.com/charliethomson/pemdrs
[INFO] tweaked toml for git repo https://github.com/charliethomson/pemdrs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/charliethomson/pemdrs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22234c1cae914ade4b64ff9caed2bc81e0a3eb7aa28c561bdc653a98b7db43a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "22234c1cae914ade4b64ff9caed2bc81e0a3eb7aa28c561bdc653a98b7db43a0"`
[INFO] [stderr]     Checking pemdrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `collections::HashMap`
[INFO] [stderr]  --> src/tree.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     collections::HashMap,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::tree::evaluate`
[INFO] [stderr]  --> src/function.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::tree::evaluate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokenize`
[INFO] [stderr]  --> src/function.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::token::{ Token, tokenize };
[INFO] [stderr]   |                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tree::evaluate`
[INFO] [stderr]  --> src/interpreter.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         tree::evaluate,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/interpreter.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         'main: loop {
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::tree::evaluate`
[INFO] [stderr]  --> src/function.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::tree::evaluate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokenize`
[INFO] [stderr]  --> src/function.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::token::{ Token, tokenize };
[INFO] [stderr]   |                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tree::evaluate`
[INFO] [stderr]  --> src/interpreter.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         tree::evaluate,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/interpreter.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         'main: loop {
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]    --> src/tree.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     std::thread::sleep_ms(100);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]    --> src/function.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     std::thread::sleep_ms(100);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/interpreter.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 100 | /         'main: loop {
[INFO] [stderr] 101 | |             print!(">> ");
[INFO] [stderr] 102 | |             io::stdout().flush().unwrap();
[INFO] [stderr] 103 | |             input.read_line(&mut cmd);
[INFO] [stderr] ...   |
[INFO] [stderr] 142 | |             cmd = String::new();
[INFO] [stderr] 143 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 144 | 
[INFO] [stderr] 145 |           io::stderr().flush();
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/tree.rs:91:37
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn from_vec(stream: Vec<Token>, ctx: &mut Context) -> Result<Self, String> {
[INFO] [stderr]    |                                     ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/token.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 Err(e) => unreachable!()
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/token.rs:342:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |             Err(e) => unreachable!()
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/token.rs:471:29
[INFO] [stderr]     |
[INFO] [stderr] 471 |             Token::Function(f) => {
[INFO] [stderr]     |                             ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/function.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Err(e) => return Err(ReplaceError::ParseError),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]   --> src/function.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                     let ident = spl.next().expect(&format!("Failed to get ident from {}", src));
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argc`
[INFO] [stderr]   --> src/interpreter.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |                         let argc = func.argc();
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_argc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `caps`
[INFO] [stderr]    --> src/interpreter.rs:119:25
[INFO] [stderr]     |
[INFO] [stderr] 119 |             if let Some(caps) = assign_regex.captures(&cmd) {
[INFO] [stderr]     |                         ^^^^ help: consider prefixing with an underscore: `_caps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `caps`
[INFO] [stderr]    --> src/interpreter.rs:123:30
[INFO] [stderr]     |
[INFO] [stderr] 123 |             else if let Some(caps) = func_decl_regex.captures(&cmd) {
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_caps`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut interpreter = Interpreter::new();
[INFO] [stderr]   |         ----^^^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/interpreter.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 100 | /         'main: loop {
[INFO] [stderr] 101 | |             print!(">> ");
[INFO] [stderr] 102 | |             io::stdout().flush().unwrap();
[INFO] [stderr] 103 | |             input.read_line(&mut cmd);
[INFO] [stderr] ...   |
[INFO] [stderr] 142 | |             cmd = String::new();
[INFO] [stderr] 143 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 144 | 
[INFO] [stderr] 145 |           io::stderr().flush();
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/tree.rs:91:37
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn from_vec(stream: Vec<Token>, ctx: &mut Context) -> Result<Self, String> {
[INFO] [stderr]    |                                     ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/token.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 Err(e) => unreachable!()
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/token.rs:342:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |             Err(e) => unreachable!()
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/token.rs:471:29
[INFO] [stderr]     |
[INFO] [stderr] 471 |             Token::Function(f) => {
[INFO] [stderr]     |                             ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/function.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Err(e) => return Err(ReplaceError::ParseError),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn begin(mut self) -> Result<(), String> {
[INFO] [stderr]    |                  ----^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut input = io::stdin();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]   --> src/function.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |                     let ident = spl.next().expect(&format!("Failed to get ident from {}", src));
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argc`
[INFO] [stderr]   --> src/interpreter.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |                         let argc = func.argc();
[INFO] [stderr]    |                             ^^^^ help: consider prefixing with an underscore: `_argc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `caps`
[INFO] [stderr]    --> src/interpreter.rs:119:25
[INFO] [stderr]     |
[INFO] [stderr] 119 |             if let Some(caps) = assign_regex.captures(&cmd) {
[INFO] [stderr]     |                         ^^^^ help: consider prefixing with an underscore: `_caps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `caps`
[INFO] [stderr]    --> src/interpreter.rs:123:30
[INFO] [stderr]     |
[INFO] [stderr] 123 |             else if let Some(caps) = func_decl_regex.captures(&cmd) {
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_caps`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut interpreter = Interpreter::new();
[INFO] [stderr]   |         ----^^^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `depth`
[INFO] [stderr]   --> src/tree.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn depth(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/tree.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn new(s: &str) -> Result<Self, String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ReplaceError`
[INFO] [stderr]  --> src/function.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum ReplaceError {
[INFO] [stderr]   |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `replace_all`
[INFO] [stderr]   --> src/function.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn replace_all(src: &Vec<String>, dst: &Vec<String>, code: &String) -> Result<String, ReplaceError> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/interpreter.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     buffer: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ans`
[INFO] [stderr]    --> src/interpreter.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub(crate) ans: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             input.read_line(&mut cmd);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         io::stderr().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn begin(mut self) -> Result<(), String> {
[INFO] [stderr]    |                  ----^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut input = io::stdin();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `depth`
[INFO] [stderr]   --> src/tree.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn depth(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ReplaceError`
[INFO] [stderr]  --> src/function.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum ReplaceError {
[INFO] [stderr]   |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `replace_all`
[INFO] [stderr]   --> src/function.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn replace_all(src: &Vec<String>, dst: &Vec<String>, code: &String) -> Result<String, ReplaceError> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/interpreter.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     buffer: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ans`
[INFO] [stderr]    --> src/interpreter.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub(crate) ans: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             input.read_line(&mut cmd);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         io::stderr().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/interpreter.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "22234c1cae914ade4b64ff9caed2bc81e0a3eb7aa28c561bdc653a98b7db43a0"`
[INFO] running `"docker" "rm" "-f" "22234c1cae914ade4b64ff9caed2bc81e0a3eb7aa28c561bdc653a98b7db43a0"`
[INFO] [stdout] 22234c1cae914ade4b64ff9caed2bc81e0a3eb7aa28c561bdc653a98b7db43a0