[INFO] cloning repository https://github.com/stephaneArtist/Rust_ESGI
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephaneArtist/Rust_ESGI" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FstephaneArtist%2FRust_ESGI", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FstephaneArtist%2FRust_ESGI'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23392c47bf9dc4215d84eb36238e52ba9961832e
[INFO] testing stephaneArtist/Rust_ESGI against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FstephaneArtist%2FRust_ESGI" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephaneArtist/Rust_ESGI on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stephaneArtist/Rust_ESGI
[INFO] finished tweaking git repo https://github.com/stephaneArtist/Rust_ESGI
[INFO] tweaked toml for git repo https://github.com/stephaneArtist/Rust_ESGI written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/stephaneArtist/Rust_ESGI already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 384ca1ff8e0653c063d67bdd23f75d57175ed3dc62524500ea296846b355b4ff
[INFO] running `Command { std: "docker" "start" "-a" "384ca1ff8e0653c063d67bdd23f75d57175ed3dc62524500ea296846b355b4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "384ca1ff8e0653c063d67bdd23f75d57175ed3dc62524500ea296846b355b4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384ca1ff8e0653c063d67bdd23f75d57175ed3dc62524500ea296846b355b4ff", kill_on_drop: false }`
[INFO] [stdout] 384ca1ff8e0653c063d67bdd23f75d57175ed3dc62524500ea296846b355b4ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d0526f918fec1354395a1e6852485499a93dcfa7d47207a49be32a618cc6998
[INFO] running `Command { std: "docker" "start" "-a" "8d0526f918fec1354395a1e6852485499a93dcfa7d47207a49be32a618cc6998", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling micro-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]  --> src/command.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Child`, `Stdio`
[INFO] [stdout]  --> src/sub_command.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::{Child, Command, Stdio};
[INFO] [stdout]   |                    ^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     loop {
[INFO] [stdout] 15 | |         utils::read_line("> ", &mut user_input);
[INFO] [stdout] 16 | |         let command_input = user_input.trim();
[INFO] [stdout] 17 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |         }
[INFO] [stdout] 38 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |       Ok(()) 
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let stdin = io::stdin(); 
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_command`
[INFO] [stdout]   --> src/main.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_command`
[INFO] [stdout]   --> src/command.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut sub_command = SubCommand::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/command.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(input: &str) -> Result<ShellCommand, String> {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut self_ = ShellCommand {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut sub_command = SubCommand::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/main.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stdout]    |                     ----^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "8d0526f918fec1354395a1e6852485499a93dcfa7d47207a49be32a618cc6998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d0526f918fec1354395a1e6852485499a93dcfa7d47207a49be32a618cc6998", kill_on_drop: false }`
[INFO] [stdout] 8d0526f918fec1354395a1e6852485499a93dcfa7d47207a49be32a618cc6998
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 794fc18f8b663a83d7e08fa00374b9aea9bb24747559db2e62612d481f5c3619
[INFO] running `Command { std: "docker" "start" "-a" "794fc18f8b663a83d7e08fa00374b9aea9bb24747559db2e62612d481f5c3619", kill_on_drop: false }`
[INFO] [stderr]    Compiling micro-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]  --> src/command.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Child`, `Stdio`
[INFO] [stdout]  --> src/sub_command.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::{Child, Command, Stdio};
[INFO] [stdout]   |                    ^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     loop {
[INFO] [stdout] 15 | |         utils::read_line("> ", &mut user_input);
[INFO] [stdout] 16 | |         let command_input = user_input.trim();
[INFO] [stdout] 17 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |         }
[INFO] [stdout] 38 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |       Ok(()) 
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let stdin = io::stdin(); 
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_command`
[INFO] [stdout]   --> src/main.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_command`
[INFO] [stdout]   --> src/command.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut sub_command = SubCommand::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/command.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(input: &str) -> Result<ShellCommand, String> {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut self_ = ShellCommand {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut sub_command = SubCommand::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/main.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stdout]    |                     ----^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/micro_shell-092a5ae3f49cc6e9)
[INFO] running `Command { std: "docker" "inspect" "794fc18f8b663a83d7e08fa00374b9aea9bb24747559db2e62612d481f5c3619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "794fc18f8b663a83d7e08fa00374b9aea9bb24747559db2e62612d481f5c3619", kill_on_drop: false }`
[INFO] [stdout] 794fc18f8b663a83d7e08fa00374b9aea9bb24747559db2e62612d481f5c3619
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec34fb25ca4ee31bbabc9b80681e36099710582ef9fe323d98f22f3c4d36ccfa
[INFO] running `Command { std: "docker" "start" "-a" "ec34fb25ca4ee31bbabc9b80681e36099710582ef9fe323d98f22f3c4d36ccfa", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::utils`
[INFO] [stderr]  --> src/command.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::utils;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Child`, `Stdio`
[INFO] [stderr]  --> src/sub_command.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::process::{Child, Command, Stdio};
[INFO] [stderr]   |                    ^^^^^           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     loop {
[INFO] [stderr] 15 | |         utils::read_line("> ", &mut user_input);
[INFO] [stderr] 16 | |         let command_input = user_input.trim();
[INFO] [stderr] 17 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |         }
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 39 | 
[INFO] [stderr] 40 |       Ok(()) 
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdin`
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let stdin = io::stdin(); 
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub_command`
[INFO] [stderr]   --> src/main.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stderr]    |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub_command`
[INFO] [stderr]   --> src/command.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut sub_command = SubCommand::new();
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_command`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/command.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new(input: &str) -> Result<ShellCommand, String> {
[INFO] [stderr]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/command.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let mut self_ = ShellCommand {
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/command.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut sub_command = SubCommand::new();
[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/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut sub_command = match shell_command.sub_commands.pop_back() {
[INFO] [stderr]    |                     ----^^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `micro-shell` (bin "micro-shell" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/micro_shell-092a5ae3f49cc6e9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec34fb25ca4ee31bbabc9b80681e36099710582ef9fe323d98f22f3c4d36ccfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec34fb25ca4ee31bbabc9b80681e36099710582ef9fe323d98f22f3c4d36ccfa", kill_on_drop: false }`
[INFO] [stdout] ec34fb25ca4ee31bbabc9b80681e36099710582ef9fe323d98f22f3c4d36ccfa