[INFO] cloning repository https://github.com/shahid-43/rust_shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shahid-43/rust_shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahid-43%2Frust_shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahid-43%2Frust_shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ba2de2445badf490cb9332a87f8ed025392de2c
[INFO] building shahid-43/rust_shell against master#3266c36624e804f9f086ebd40db19039b55a4ec1 for pr-111698
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshahid-43%2Frust_shell" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shahid-43/rust_shell on toolchain 3266c36624e804f9f086ebd40db19039b55a4ec1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3266c36624e804f9f086ebd40db19039b55a4ec1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shahid-43/rust_shell
[INFO] finished tweaking git repo https://github.com/shahid-43/rust_shell
[INFO] tweaked toml for git repo https://github.com/shahid-43/rust_shell written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shahid-43/rust_shell 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" "+3266c36624e804f9f086ebd40db19039b55a4ec1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+3266c36624e804f9f086ebd40db19039b55a4ec1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac1733bfd9a864a978a34bbeff2f06a3c15ce9359f04cf0768bc48abbb20318d
[INFO] running `Command { std: "docker" "start" "-a" "ac1733bfd9a864a978a34bbeff2f06a3c15ce9359f04cf0768bc48abbb20318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1733bfd9a864a978a34bbeff2f06a3c15ce9359f04cf0768bc48abbb20318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1733bfd9a864a978a34bbeff2f06a3c15ce9359f04cf0768bc48abbb20318d", kill_on_drop: false }`
[INFO] [stdout] ac1733bfd9a864a978a34bbeff2f06a3c15ce9359f04cf0768bc48abbb20318d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+3266c36624e804f9f086ebd40db19039b55a4ec1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0075112b4e661eb4be9674cf8684b7dd0af2eae115aff8c180056c3186db40c6
[INFO] running `Command { std: "docker" "start" "-a" "0075112b4e661eb4be9674cf8684b7dd0af2eae115aff8c180056c3186db40c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> src/script.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cmd` is never read
[INFO] [stdout]   --> src/execute.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut cmd=String::new();
[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 `argument` is never read
[INFO] [stdout]   --> src/execute.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut argument=Vec::new();
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/ls.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run(dir: &Path) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "0075112b4e661eb4be9674cf8684b7dd0af2eae115aff8c180056c3186db40c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0075112b4e661eb4be9674cf8684b7dd0af2eae115aff8c180056c3186db40c6", kill_on_drop: false }`
[INFO] [stdout] 0075112b4e661eb4be9674cf8684b7dd0af2eae115aff8c180056c3186db40c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+3266c36624e804f9f086ebd40db19039b55a4ec1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2308d3f12a50a45ce4eb61494a5b86a6b5cbfa89f13bcf703cde80535c599ec8
[INFO] running `Command { std: "docker" "start" "-a" "2308d3f12a50a45ce4eb61494a5b86a6b5cbfa89f13bcf703cde80535c599ec8", kill_on_drop: false }`
[INFO] [stderr]    Compiling shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> src/script.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cmd` is never read
[INFO] [stdout]   --> src/execute.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut cmd=String::new();
[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 `argument` is never read
[INFO] [stdout]   --> src/execute.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut argument=Vec::new();
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/ls.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run(dir: &Path) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "2308d3f12a50a45ce4eb61494a5b86a6b5cbfa89f13bcf703cde80535c599ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2308d3f12a50a45ce4eb61494a5b86a6b5cbfa89f13bcf703cde80535c599ec8", kill_on_drop: false }`
[INFO] [stdout] 2308d3f12a50a45ce4eb61494a5b86a6b5cbfa89f13bcf703cde80535c599ec8