[INFO] cloning repository https://github.com/CampoDiFiori/rust-dbg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CampoDiFiori/rust-dbg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Frust-dbg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Frust-dbg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de4c298c1d6256f33404d31f5be876d88fc47ddf
[INFO] checking CampoDiFiori/rust-dbg against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Frust-dbg" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CampoDiFiori/rust-dbg
[INFO] finished tweaking git repo https://github.com/CampoDiFiori/rust-dbg
[INFO] tweaked toml for git repo https://github.com/CampoDiFiori/rust-dbg written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CampoDiFiori/rust-dbg 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/CampoDiFiori/rust-dbg 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instability v0.3.2
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[INFO] [stderr]   Downloaded syn v2.0.67
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[INFO] [stderr]   Downloaded gimli v0.30.0
[INFO] [stderr]   Downloaded capstone-sys v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b
[INFO] running `Command { std: "docker" "start" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b", 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" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b", 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" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking zerocopy v0.7.35
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[INFO] [stdout] warning: unused import: `tui::run_tui`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tui::run_tui;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tui::run_tui`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tui::run_tui;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `project_root` and `file_readers` are never read
[INFO] [stdout]   --> src/source_files.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SourceFiles {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 12 |     project_root: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 13 |     file_names: HashSet<PathBuf>,
[INFO] [stdout] 14 |     file_readers: HashMap<PathBuf, BufReader<File>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `file` and `to_buffer` are never used
[INFO] [stdout]   --> src/source_files.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SourceFiles {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn file(&mut self, file_name: &Path) -> std::io::Result<&mut BufReader<File>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn to_buffer(&self, buffer: &mut String) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_tui` is never used
[INFO] [stdout]   --> src/tui.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run_tui(files: SourceFiles) -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tui` is never constructed
[INFO] [stdout]   --> src/tui.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Tui {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `project_root` and `file_readers` are never read
[INFO] [stdout]   --> src/source_files.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SourceFiles {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 12 |     project_root: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 13 |     file_names: HashSet<PathBuf>,
[INFO] [stdout] 14 |     file_readers: HashMap<PathBuf, BufReader<File>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `file` and `to_buffer` are never used
[INFO] [stdout]   --> src/source_files.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SourceFiles {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn file(&mut self, file_name: &Path) -> std::io::Result<&mut BufReader<File>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn to_buffer(&self, buffer: &mut String) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_tui` is never used
[INFO] [stdout]   --> src/tui.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run_tui(files: SourceFiles) -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tui` is never constructed
[INFO] [stdout]   --> src/tui.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Tui {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]    --> src/debugger.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |             std::process::Command::new(executable).exec();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 182 |             let _ = std::process::Command::new(executable).exec();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/source_files.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 | /                 writeln!(
[INFO] [stdout] 61 | |                     buffer,
[INFO] [stdout] 62 | |                     "{}",
[INFO] [stdout] 63 | |                     s.strip_prefix(&self.project_root).unwrap_or(s)
[INFO] [stdout] 64 | |                 );
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = writeln!(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `exec` that must be used
[INFO] [stdout]    --> src/debugger.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |             std::process::Command::new(executable).exec();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 182 |             let _ = std::process::Command::new(executable).exec();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/source_files.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 | /                 writeln!(
[INFO] [stdout] 61 | |                     buffer,
[INFO] [stdout] 62 | |                     "{}",
[INFO] [stdout] 63 | |                     s.strip_prefix(&self.project_root).unwrap_or(s)
[INFO] [stdout] 64 | |                 );
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = writeln!(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `gimli`
[INFO] [stderr]  --> Cargo.toml:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | gimli = "0.31.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `gimli`
[INFO] [stderr] warning: `cool` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.40s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 8`
[INFO] running `Command { std: "docker" "inspect" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b", kill_on_drop: false }`
[INFO] [stdout] 55e0cdac32aed5eff360a59d2a33c5db60b7d093b18977f1ba2bb1228d11a44b
