[INFO] cloning repository https://github.com/maxmcd/cfc-ptrace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxmcd/cfc-ptrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fcfc-ptrace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fcfc-ptrace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e67d56d9bc20b35336588037fd9a73e988c35523
[INFO] checking maxmcd/cfc-ptrace against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fcfc-ptrace" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maxmcd/cfc-ptrace
[INFO] finished tweaking git repo https://github.com/maxmcd/cfc-ptrace
[INFO] tweaked toml for git repo https://github.com/maxmcd/cfc-ptrace written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maxmcd/cfc-ptrace 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/maxmcd/cfc-ptrace 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a
[INFO] running `Command { std: "docker" "start" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a", 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" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a", 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" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking data-encoding v2.9.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tungstenite v0.23.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-tungstenite v0.23.1
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking cfc-ptrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 278 | /     loop {
[INFO] [stdout] 279 | |         match wait() {
[INFO] [stdout] 280 | |             Ok(WaitStatus::Stopped(_, Signal::SIGTRAP)) | Ok(WaitStatus::PtraceSyscall(_)) => {
[INFO] [stdout] 281 | |                 if !in_syscall {
[INFO] [stdout] ...   |
[INFO] [stdout] 344 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 345 |
[INFO] [stdout] 346 |       Ok(0)  // Should not reach here, but return success if we do
[INFO] [stdout]     |       ^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 278 | /     loop {
[INFO] [stdout] 279 | |         match wait() {
[INFO] [stdout] 280 | |             Ok(WaitStatus::Stopped(_, Signal::SIGTRAP)) | Ok(WaitStatus::PtraceSyscall(_)) => {
[INFO] [stdout] 281 | |                 if !in_syscall {
[INFO] [stdout] ...   |
[INFO] [stdout] 344 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 345 |
[INFO] [stdout] 346 |       Ok(0)  // Should not reach here, but return success if we do
[INFO] [stdout]     |       ^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fake_fd`
[INFO] [stdout]    --> src/main.rs:215:24
[INFO] [stdout]     |
[INFO] [stdout] 215 |                     Ok(fake_fd) => {}
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fake_fd`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BufferTooLarge` and `MemoryWrite` are never constructed
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum PtraceError {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     BufferTooLarge,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 22 |     StringTooLong,
[INFO] [stdout] 23 |     MemoryWrite,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PtraceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/main.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 | const MAX_BUFFER_SIZE: usize = 1024 * 1024; // 1MB
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_data_from_child` is never used
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn read_data_from_child(pid: Pid, addr: u64, count: usize) -> Result<Vec<u8>, PtraceError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_data_to_child` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn write_data_to_child(pid: Pid, addr: u64, data: &[u8]) -> Result<(), PtraceError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `RemoteFileNotFound`, `NoFileDescriptor`, `CacheReadFailed`, and `RemoteError` are never constructed
[INFO] [stdout]   --> src/websocket_fs.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum FileError {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 13 |     WebSocketRequest(Box<dyn std::error::Error>),
[INFO] [stdout] 14 |     RemoteFileNotFound(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     NoFileDescriptor,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     CacheReadFailed(std::io::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     RemoteError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `path` are never read
[INFO] [stdout]   --> src/websocket_fs.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct CachedFile {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 77 |     pub position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 78 |     pub path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CachedFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `send_request_with_binary`, `register_fd`, `update_fd_position`, and `write_file` are never used
[INFO] [stdout]    --> src/websocket_fs.rs:253:18
[INFO] [stdout]     |
[INFO] [stdout]  88 | impl WebSocketFileSystem {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 253 |     pub async fn send_request_with_binary(
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     pub fn register_fd(&mut self, fd: i32, path: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 298 |     pub fn update_fd_position(&mut self, fd: i32, position: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 |     pub async fn write_file(&mut self, path: &str, data: &[u8]) -> Option<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fake_fd`
[INFO] [stdout]    --> src/main.rs:215:24
[INFO] [stdout]     |
[INFO] [stdout] 215 |                     Ok(fake_fd) => {}
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fake_fd`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BufferTooLarge` and `MemoryWrite` are never constructed
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum PtraceError {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     BufferTooLarge,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 22 |     StringTooLong,
[INFO] [stdout] 23 |     MemoryWrite,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PtraceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/main.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 | const MAX_BUFFER_SIZE: usize = 1024 * 1024; // 1MB
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_data_from_child` is never used
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn read_data_from_child(pid: Pid, addr: u64, count: usize) -> Result<Vec<u8>, PtraceError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_data_to_child` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn write_data_to_child(pid: Pid, addr: u64, data: &[u8]) -> Result<(), PtraceError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `RemoteFileNotFound`, `NoFileDescriptor`, `CacheReadFailed`, and `RemoteError` are never constructed
[INFO] [stdout]   --> src/websocket_fs.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum FileError {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 13 |     WebSocketRequest(Box<dyn std::error::Error>),
[INFO] [stdout] 14 |     RemoteFileNotFound(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     NoFileDescriptor,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     CacheReadFailed(std::io::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     RemoteError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `path` are never read
[INFO] [stdout]   --> src/websocket_fs.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct CachedFile {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 77 |     pub position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 78 |     pub path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CachedFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `register_fd`, `update_fd_position`, and `write_file` are never used
[INFO] [stdout]    --> src/websocket_fs.rs:289:12
[INFO] [stdout]     |
[INFO] [stdout]  88 | impl WebSocketFileSystem {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 289 |     pub fn register_fd(&mut self, fd: i32, path: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 298 |     pub fn update_fd_position(&mut self, fd: i32, position: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 |     pub async fn write_file(&mut self, path: &str, data: &[u8]) -> Option<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: `cfc-ptrace` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.39s
[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 7`
[INFO] running `Command { std: "docker" "inspect" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a", kill_on_drop: false }`
[INFO] [stdout] 0325d80c1143eaabbebaac0f566beeccd5e81db5040e4c9bc29a20614ea0039a
