[INFO] cloning repository https://github.com/Scharxi/mini-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Scharxi/mini-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScharxi%2Fmini-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScharxi%2Fmini-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb09486aace6444fae2130462ef97177fc41c5fb
[INFO] checking Scharxi/mini-shell against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScharxi%2Fmini-shell" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Scharxi/mini-shell
[INFO] finished tweaking git repo https://github.com/Scharxi/mini-shell
[INFO] tweaked toml for git repo https://github.com/Scharxi/mini-shell written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Scharxi/mini-shell on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Scharxi/mini-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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: workspace.package.name
[INFO] [stderr] warning: unused field `name` in `workspace.package`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | name = "mini-shell"
[INFO] [stderr]   | ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_workspace_package_fields` is set to `warn` by default
[INFO] [stderr] help: consider removing the field `workspace.package.name`
[INFO] [stderr] warning: workspace (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5
[INFO] running `Command { std: "docker" "start" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: workspace.package.name
[INFO] [stderr] warning: unused field `name` in `workspace.package`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | name = "mini-shell"
[INFO] [stderr]   | ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_workspace_package_fields` is set to `warn` by default
[INFO] [stderr] help: consider removing the field `workspace.package.name`
[INFO] [stderr] warning: workspace (manifest) generated 2 warnings
[INFO] [stderr]     Checking tokenizer v0.1.0 (/opt/rustwide/workdir/tokenizer)
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking ctrlc v3.4.7
[INFO] [stderr]     Checking shell v0.1.0 (/opt/rustwide/workdir/shell)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> shell/src/command.rs:205:14
[INFO] [stdout]     |
[INFO] [stdout] 205 |         for (i, mut process) in handles.into_iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> shell/src/command.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |             let mut cmd = std::mem::replace(&mut self.commands[i], Box::new(SystemCommand::new("dummy".to_string())));
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append_args` and `append_flags` are never used
[INFO] [stdout]   --> shell/src/command.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl CommandParser {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn append_args(&mut self, cmd: &mut Box<dyn Command>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn append_flags(&mut self, cmd: &mut Box<dyn Command>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking example v0.1.0 (/opt/rustwide/workdir/example)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> shell/src/command.rs:205:14
[INFO] [stdout]     |
[INFO] [stdout] 205 |         for (i, mut process) in handles.into_iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> shell/src/command.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |             let mut cmd = std::mem::replace(&mut self.commands[i], Box::new(SystemCommand::new("dummy".to_string())));
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append_args` and `append_flags` are never used
[INFO] [stdout]   --> shell/src/command.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl CommandParser {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn append_args(&mut self, cmd: &mut Box<dyn Command>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn append_flags(&mut self, cmd: &mut Box<dyn Command>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.88s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.30.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 12`
[INFO] running `Command { std: "docker" "inspect" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5", kill_on_drop: false }`
[INFO] [stdout] 6bd39c440e32d7551334e52362de88e67ca9e415b67e183cca16d465946852c5
