[INFO] cloning repository https://github.com/flowerhill/syscall-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flowerhill/syscall-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Fsyscall-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Fsyscall-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c43c3e7bcde3be0111a74632b7a103407f2b642
[INFO] checking flowerhill/syscall-tracer against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Fsyscall-tracer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/flowerhill/syscall-tracer
[INFO] finished tweaking git repo https://github.com/flowerhill/syscall-tracer
[INFO] tweaked toml for git repo https://github.com/flowerhill/syscall-tracer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/flowerhill/syscall-tracer 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/flowerhill/syscall-tracer 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_lex v0.7.6
[INFO] [stderr]   Downloaded clap v4.5.53
[INFO] [stderr]   Downloaded clap_builder v4.5.53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88
[INFO] running `Command { std: "docker" "start" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88", 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" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88", 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" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking clap_builder v4.5.53
[INFO] [stderr]    Compiling syn v2.0.112
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking clap v4.5.53
[INFO] [stderr]     Checking rust-strace-sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/process.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             execv(&cmd, &exec_args)?;
[INFO] [stdout]    |             ------------------------ any code following this expression is unreachable
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |             unreachable!();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/process.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             execv(&cmd, &exec_args)?;
[INFO] [stdout]    |             ------------------------ any code following this expression is unreachable
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |             unreachable!();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYS_READ` is never used
[INFO] [stdout]  --> src/syscalls.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const SYS_READ: u64 = 0;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYS_WRITE` is never used
[INFO] [stdout]  --> src/syscalls.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const SYS_WRITE: u64 = 1;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYS_OPEN` is never used
[INFO] [stdout]  --> src/syscalls.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const SYS_OPEN: u64 = 2;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYS_CLOSE` is never used
[INFO] [stdout]  --> src/syscalls.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const SYS_CLOSE: u64 = 3;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `syscall_name` is never used
[INFO] [stdout]  --> src/syscalls.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn syscall_name(num: u64) -> &'static str {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SyscallNum` is never used
[INFO] [stdout]   --> src/tracer.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | type SyscallNum = u64;
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SyscallArgs` is never used
[INFO] [stdout]   --> src/tracer.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SyscallArgs = (u64, u64, u64);
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_syscall_number` is never used
[INFO] [stdout]   --> src/tracer.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn get_syscall_number(regs: user_regs_struct) -> SyscallNum {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getsyscall_args` is never used
[INFO] [stdout]   --> src/tracer.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn getsyscall_args(regs: user_regs_struct) -> SyscallArgs {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trace` is never used
[INFO] [stdout]   --> src/tracer.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn trace(cmd: &str, args: &[String]) -> Result<()> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.82s
[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 8`
[INFO] running `Command { std: "docker" "inspect" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88", kill_on_drop: false }`
[INFO] [stdout] 47b1cb275ac93c144de77c6ae8a887219af430acd77c3bd10f6cbedad68cde88
