[INFO] cloning repository https://github.com/Zelmoghazy/simple-shell-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zelmoghazy/simple-shell-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelmoghazy%2Fsimple-shell-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelmoghazy%2Fsimple-shell-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64d85df4cbc7ed31d041d60278ecd34a5d16dd69
[INFO] checking Zelmoghazy/simple-shell-rust against try#e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelmoghazy%2Fsimple-shell-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Zelmoghazy/simple-shell-rust
[INFO] finished tweaking git repo https://github.com/Zelmoghazy/simple-shell-rust
[INFO] tweaked toml for git repo https://github.com/Zelmoghazy/simple-shell-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Zelmoghazy/simple-shell-rust on toolchain e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Zelmoghazy/simple-shell-rust 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" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34180ec31393cf5685e2db520ec394f17f4c088889ae3f292bf1d6d03c82003b
[INFO] running `Command { std: "docker" "start" "-a" "34180ec31393cf5685e2db520ec394f17f4c088889ae3f292bf1d6d03c82003b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34180ec31393cf5685e2db520ec394f17f4c088889ae3f292bf1d6d03c82003b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34180ec31393cf5685e2db520ec394f17f4c088889ae3f292bf1d6d03c82003b", kill_on_drop: false }`
[INFO] [stdout] 34180ec31393cf5685e2db520ec394f17f4c088889ae3f292bf1d6d03c82003b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02721e8d85b81418eb3c6bd60278657633790697b89fce72af66dd8a47c1c210
[INFO] running `Command { std: "docker" "start" "-a" "02721e8d85b81418eb3c6bd60278657633790697b89fce72af66dd8a47c1c210", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]     Checking rust_shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stdin`
[INFO] [stdout]  --> main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdin`
[INFO] [stdout]  --> main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     for i in 1..=5 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     for i in 1..=5 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_input`
[INFO] [stdout]    --> main.rs:132:50
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn display_suggestions(history: &CommandHistory, current_input: &str, cursor_pos: usize) 
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_input`
[INFO] [stdout]    --> main.rs:132:50
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn display_suggestions(history: &CommandHistory, current_input: &str, cursor_pos: usize) 
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor_pos`
[INFO] [stdout]    --> main.rs:132:71
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn display_suggestions(history: &CommandHistory, current_input: &str, cursor_pos: usize) 
[INFO] [stdout]     |                                                                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor_pos`
[INFO] [stdout]    --> main.rs:132:71
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn display_suggestions(history: &CommandHistory, current_input: &str, cursor_pos: usize) 
[INFO] [stdout]     |                                                                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> main.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 404 |                         KeyCode::Char(_) | KeyCode::Backspace | KeyCode::Delete => {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> main.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 332 |                         KeyCode::Char(c) => {
[INFO] [stdout]     |                         ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 338 |                         KeyCode::Backspace => {
[INFO] [stdout]     |                         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 346 |                         KeyCode::Delete => {
[INFO] [stdout]     |                         --------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 404 |                         KeyCode::Char(_) | KeyCode::Backspace | KeyCode::Delete => {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> main.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 404 |                         KeyCode::Char(_) | KeyCode::Backspace | KeyCode::Delete => {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> main.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 332 |                         KeyCode::Char(c) => {
[INFO] [stdout]     |                         ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 338 |                         KeyCode::Backspace => {
[INFO] [stdout]     |                         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 346 |                         KeyCode::Delete => {
[INFO] [stdout]     |                         --------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 404 |                         KeyCode::Char(_) | KeyCode::Backspace | KeyCode::Delete => {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> main.rs:425:13
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let mut input = input.trim().to_string();
[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: methods `previous` and `next` are never used
[INFO] [stdout]    --> main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl CommandHistory 
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn previous(&mut self) -> Option<String> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn next(&mut self) -> Option<String> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> main.rs:425:13
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let mut input = input.trim().to_string();
[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: methods `previous` and `next` are never used
[INFO] [stdout]    --> main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl CommandHistory 
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn previous(&mut self) -> Option<String> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn next(&mut self) -> Option<String> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "02721e8d85b81418eb3c6bd60278657633790697b89fce72af66dd8a47c1c210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02721e8d85b81418eb3c6bd60278657633790697b89fce72af66dd8a47c1c210", kill_on_drop: false }`
[INFO] [stdout] 02721e8d85b81418eb3c6bd60278657633790697b89fce72af66dd8a47c1c210