[INFO] updating cached repository https://github.com/Hagi013/toy-container [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] [stderr] From https://github.com/Hagi013/toy-container [INFO] [stderr] 3531117..5efd8b3 master -> master [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5efd8b32966c051cf797767bfdf58d69196eedd3 [INFO] checking Hagi013/toy-container against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHagi013%2Ftoy-container" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Hagi013/toy-container on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Hagi013/toy-container [INFO] finished tweaking git repo https://github.com/Hagi013/toy-container [INFO] tweaked toml for git repo https://github.com/Hagi013/toy-container written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/Hagi013/toy-container already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0fb8521d395ad26788c3a9bfa864b4aaa0e5bf9b24f9fe1e6d68edca5e572740 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0fb8521d395ad26788c3a9bfa864b4aaa0e5bf9b24f9fe1e6d68edca5e572740", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0fb8521d395ad26788c3a9bfa864b4aaa0e5bf9b24f9fe1e6d68edca5e572740", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fb8521d395ad26788c3a9bfa864b4aaa0e5bf9b24f9fe1e6d68edca5e572740", kill_on_drop: false }` [INFO] [stdout] 0fb8521d395ad26788c3a9bfa864b4aaa0e5bf9b24f9fe1e6d68edca5e572740 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 469fcf63180043c508e8c95eeb1ab941550a8ee3eb506869d8d3b9fc4f37e9b1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "469fcf63180043c508e8c95eeb1ab941550a8ee3eb506869d8d3b9fc4f37e9b1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking toy-container v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Stderr` [INFO] [stdout] --> src/container_pivot.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/container_pivot.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/container_pivot.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/container_pivot.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chdir` [INFO] [stdout] --> src/escaping_chroot.rs:2:32 [INFO] [stdout] | [INFO] [stdout] 2 | use nix::unistd::{Pid, chroot, chdir, mkdir}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `escaping_chroot::escape_chroot` [INFO] [stdout] --> src/container_pivot.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use escaping_chroot::escape_chroot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/container_pivot.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 49 | / loop { [INFO] [stdout] 50 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 51 | | spawn_sh("id", self_pid); [INFO] [stdout] 52 | | spawn_sh("ipcs", self_pid); [INFO] [stdout] ... | [INFO] [stdout] 60 | | spawn_sh("ls -a .", self_pid); [INFO] [stdout] 61 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 62 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Stderr` [INFO] [stdout] --> src/container_pivot.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/container_pivot.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/container_pivot.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/container_pivot.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chdir` [INFO] [stdout] --> src/escaping_chroot.rs:2:32 [INFO] [stdout] | [INFO] [stdout] 2 | use nix::unistd::{Pid, chroot, chdir, mkdir}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `escaping_chroot::escape_chroot` [INFO] [stdout] --> src/container_pivot.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use escaping_chroot::escape_chroot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/container_pivot.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 76 | / loop { [INFO] [stdout] 77 | | exec_sh("uname -n", root_pid); [INFO] [stdout] 78 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 79 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 80 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Stderr` [INFO] [stdout] --> src/container_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/container_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/container_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/executor_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/executor_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/executor_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/executor_1.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/executor_1.rs:14:25 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/container_pivot.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 49 | / loop { [INFO] [stdout] 50 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 51 | | spawn_sh("id", self_pid); [INFO] [stdout] 52 | | spawn_sh("ipcs", self_pid); [INFO] [stdout] ... | [INFO] [stdout] 60 | | spawn_sh("ls -a .", self_pid); [INFO] [stdout] 61 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 62 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Stderr` [INFO] [stdout] --> src/container_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/container_pivot.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 76 | / loop { [INFO] [stdout] 77 | | exec_sh("uname -n", root_pid); [INFO] [stdout] 78 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 79 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 80 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/executor_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/executor_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/executor_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/executor_1.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/executor_1.rs:14:25 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/container_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/container_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/container_1.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 30 | / loop { [INFO] [stdout] 31 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 32 | | spawn_sh("id", self_pid); [INFO] [stdout] 33 | | spawn_sh("ipcs", self_pid); [INFO] [stdout] ... | [INFO] [stdout] 41 | | // spawn_sh("ls -a ..", self_pid); [INFO] [stdout] 42 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 43 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/execution_trace_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/execution_trace_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/execution_trace_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/execution_trace_1.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/execution_trace_1.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/execution_trace_1.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/execution_trace_1.rs:17:25 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `WaitPidFlag` [INFO] [stdout] --> src/ptrace.rs:3:31 [INFO] [stdout] | [INFO] [stdout] 3 | use nix::sys::wait::{waitpid, WaitPidFlag, WaitStatus}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/container_1.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 57 | / loop { [INFO] [stdout] 58 | | exec_sh("uname -n", root_pid); [INFO] [stdout] 59 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 60 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 61 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/execution_trace_1.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/execution_trace_1.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/execution_trace_1.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/execution_trace_1.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/execution_trace_1.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/execution_trace_1.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/execution_trace_1.rs:17:25 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `WaitPidFlag` [INFO] [stdout] --> src/ptrace.rs:3:31 [INFO] [stdout] | [INFO] [stdout] 3 | use nix::sys::wait::{waitpid, WaitPidFlag, WaitStatus}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/execution_trace_2.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead, Read}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/execution_trace_2.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir, OpenOptions}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/execution_trace_2.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/execution_trace_2.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/execution_trace_2.rs:17:25 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard, Arc}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `WaitPidFlag` [INFO] [stdout] --> src/ptrace.rs:3:31 [INFO] [stdout] | [INFO] [stdout] 3 | use nix::sys::wait::{waitpid, WaitPidFlag, WaitStatus}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/container_1.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 30 | / loop { [INFO] [stdout] 31 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 32 | | spawn_sh("id", self_pid); [INFO] [stdout] 33 | | spawn_sh("ipcs", self_pid); [INFO] [stdout] ... | [INFO] [stdout] 41 | | // spawn_sh("ls -a ..", self_pid); [INFO] [stdout] 42 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 43 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/container_1.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 57 | / loop { [INFO] [stdout] 58 | | exec_sh("uname -n", root_pid); [INFO] [stdout] 59 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 60 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 61 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader`, `Stderr` [INFO] [stdout] --> src/execution_trace_2.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead, Read}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FileType`, `set_permissions` [INFO] [stdout] --> src/execution_trace_2.rs:4:37 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::{self, copy, read_dir, FileType, set_permissions, remove_dir, OpenOptions}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PermissionsExt`, `symlink` [INFO] [stdout] --> src/execution_trace_2.rs:5:25 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::unix::fs::{symlink, PermissionsExt}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chroot` [INFO] [stdout] --> src/execution_trace_2.rs:8:45 [INFO] [stdout] | [INFO] [stdout] 8 | use nix::unistd::{Pid, getpid, sethostname, chroot, chdir, mkdir, pivot_root}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockReadGuard` [INFO] [stdout] --> src/execution_trace_2.rs:17:25 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard, Arc}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `WaitPidFlag` [INFO] [stdout] --> src/ptrace.rs:3:31 [INFO] [stdout] | [INFO] [stdout] 3 | use nix::sys::wait::{waitpid, WaitPidFlag, WaitStatus}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `escape_chroot` [INFO] [stdout] --> src/escaping_chroot.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn escape_chroot(pid: Pid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/container_pivot.rs:176:4 [INFO] [stdout] | [INFO] [stdout] 176 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:164:13 [INFO] [stdout] | [INFO] [stdout] 164 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/executor_1.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 110 | / loop { [INFO] [stdout] 111 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 112 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 113 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/executor_1.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 110 | / loop { [INFO] [stdout] 111 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 112 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 113 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/executor_1.rs:131:5 [INFO] [stdout] | [INFO] [stdout] 128 | / loop { [INFO] [stdout] 129 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 130 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 131 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/executor_1.rs:131:5 [INFO] [stdout] | [INFO] [stdout] 128 | / loop { [INFO] [stdout] 129 | | sleep(Duration::from_secs(3)); [INFO] [stdout] 130 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 131 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/container_1.rs:156:4 [INFO] [stdout] | [INFO] [stdout] 156 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/execution_trace_1.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 115 | / loop { [INFO] [stdout] 116 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 117 | | // spawn_sh("ls -a", self_pid); [INFO] [stdout] 118 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 119 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_1.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_1.rs:144:13 [INFO] [stdout] | [INFO] [stdout] 144 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/execution_trace_1.rs:201:5 [INFO] [stdout] | [INFO] [stdout] 140 | / loop { [INFO] [stdout] 141 | | let status: WaitStatus = ptrace::wait_pid(pid).unwrap(); [INFO] [stdout] 142 | | println!("status: {:?}", status); [INFO] [stdout] 143 | | let regs: user_regs_struct = ptrace::getregs(pid).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 199 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 200 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 201 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `escape_chroot` [INFO] [stdout] --> src/escaping_chroot.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn escape_chroot(pid: Pid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/container_pivot.rs:176:4 [INFO] [stdout] | [INFO] [stdout] 176 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/execution_trace_2.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 139 | / loop { [INFO] [stdout] 140 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 141 | | // spawn_sh("ls -a", self_pid); [INFO] [stdout] 142 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 143 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/execution_trace_2.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 139 | / loop { [INFO] [stdout] 140 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 141 | | // spawn_sh("ls -a", self_pid); [INFO] [stdout] 142 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 143 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/execution_trace_1.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 115 | / loop { [INFO] [stdout] 116 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 117 | | // spawn_sh("ls -a", self_pid); [INFO] [stdout] 118 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 119 | return 0 as isize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_pivot.rs:164:13 [INFO] [stdout] | [INFO] [stdout] 164 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/container_1.rs:156:4 [INFO] [stdout] | [INFO] [stdout] 156 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/executor_1.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/executor_1.rs:125:9 [INFO] [stdout] | [INFO] [stdout] 125 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/executor_1.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/execution_trace_1.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/executor_1.rs:125:9 [INFO] [stdout] | [INFO] [stdout] 125 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/execution_trace_1.rs:134:9 [INFO] [stdout] | [INFO] [stdout] 134 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_1.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut is_enter_stop: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_1.rs:188:9 [INFO] [stdout] | [INFO] [stdout] 188 | is_enter_stop = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_1.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/execution_trace_1.rs:201:5 [INFO] [stdout] | [INFO] [stdout] 140 | / loop { [INFO] [stdout] 141 | | let status: WaitStatus = ptrace::wait_pid(pid).unwrap(); [INFO] [stdout] 142 | | println!("status: {:?}", status); [INFO] [stdout] 143 | | let regs: user_regs_struct = ptrace::getregs(pid).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 199 | | // sleep(Duration::from_secs(3)); [INFO] [stdout] 200 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 201 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/container_1.rs:144:13 [INFO] [stdout] | [INFO] [stdout] 144 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/execution_trace_2.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead, Read}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/execution_trace_2.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_2.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | let mut is_enter_stop: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_2.rs:253:9 [INFO] [stdout] | [INFO] [stdout] 253 | is_enter_stop = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/execution_trace_2.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead, Read}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/execution_trace_1.rs:2:41 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Write, Stderr, BufReader, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/executor_1.rs:225:4 [INFO] [stdout] | [INFO] [stdout] 225 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/execution_trace_2.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_2.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | let mut is_enter_stop: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_2.rs:253:9 [INFO] [stdout] | [INFO] [stdout] 253 | is_enter_stop = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root_pid` [INFO] [stdout] --> src/execution_trace_1.rs:134:9 [INFO] [stdout] | [INFO] [stdout] 134 | let root_pid = getpid(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root_pid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_1.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | let mut is_enter_stop: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_enter_stop` is never read [INFO] [stdout] --> src/execution_trace_1.rs:188:9 [INFO] [stdout] | [INFO] [stdout] 188 | is_enter_stop = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/executor_1.rs:225:4 [INFO] [stdout] | [INFO] [stdout] 225 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:115:5 [INFO] [stdout] | [INFO] [stdout] 115 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:215:13 [INFO] [stdout] | [INFO] [stdout] 215 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:240:5 [INFO] [stdout] | [INFO] [stdout] 240 | / mount::( [INFO] [stdout] 241 | | Some(source_path), [INFO] [stdout] 242 | | target_path.as_path(), [INFO] [stdout] 243 | | Some("ext4"), [INFO] [stdout] 244 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 245 | | None, [INFO] [stdout] 246 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `detach` [INFO] [stdout] --> src/ptrace.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn detach(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `setregs` [INFO] [stdout] --> src/ptrace.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn setregs(pid: Pid, urs: user_regs_struct) -> Result<()> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sysemu_single` [INFO] [stdout] --> src/ptrace.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn sysemu_single(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/execution_trace_1.rs:295:4 [INFO] [stdout] | [INFO] [stdout] 295 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:115:5 [INFO] [stdout] | [INFO] [stdout] 115 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:215:13 [INFO] [stdout] | [INFO] [stdout] 215 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:192:13 [INFO] [stdout] | [INFO] [stdout] 192 | ptrace::sysemu(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:285:13 [INFO] [stdout] | [INFO] [stdout] 285 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:310:5 [INFO] [stdout] | [INFO] [stdout] 310 | / mount::( [INFO] [stdout] 311 | | Some(source_path), [INFO] [stdout] 312 | | target_path.as_path(), [INFO] [stdout] 313 | | Some("ext4"), [INFO] [stdout] 314 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 315 | | None, [INFO] [stdout] 316 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | ptrace::setoptions(pid, ptrace::Options::PTRACE_O_TRACESYSGOOD); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | ptrace::syscall(pid, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / Errno::result( [INFO] [stdout] 46 | | unsafe { libc::ptrace(31 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut::(), std::ptr::n... [INFO] [stdout] 48 | | ) [INFO] [stdout] 49 | | .map(drop); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/executor_1.rs:240:5 [INFO] [stdout] | [INFO] [stdout] 240 | / mount::( [INFO] [stdout] 241 | | Some(source_path), [INFO] [stdout] 242 | | target_path.as_path(), [INFO] [stdout] 243 | | Some("ext4"), [INFO] [stdout] 244 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 245 | | None, [INFO] [stdout] 246 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | / Errno::result( [INFO] [stdout] 55 | | unsafe { libc::ptrace(32 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut:: src/execution_trace_2.rs:209:45 [INFO] [stdout] | [INFO] [stdout] 209 | ... let mut pipe = OpenOptions::new() [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/execution_trace_2.rs:209:45 [INFO] [stdout] | [INFO] [stdout] 209 | ... let mut pipe = OpenOptions::new() [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 28 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sysemu_single` [INFO] [stdout] --> src/ptrace.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn sysemu_single(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/execution_trace_2.rs:359:4 [INFO] [stdout] | [INFO] [stdout] 359 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:145:5 [INFO] [stdout] | [INFO] [stdout] 145 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `read__guard` should have a snake case name [INFO] [stdout] --> src/execution_trace_2.rs:207:45 [INFO] [stdout] | [INFO] [stdout] 207 | ... let read__guard = command_start_check_pipe.read().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `read_guard` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:217:45 [INFO] [stdout] | [INFO] [stdout] 217 | ... pipe.unwrap().read_to_string(&mut contents); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:229:41 [INFO] [stdout] | [INFO] [stdout] 229 | ... ptrace::setregs(pid, regs); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:237:25 [INFO] [stdout] | [INFO] [stdout] 237 | ptrace::detach(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:258:13 [INFO] [stdout] | [INFO] [stdout] 258 | ptrace::sysemu(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:374:5 [INFO] [stdout] | [INFO] [stdout] 374 | / mount::( [INFO] [stdout] 375 | | Some(source_path), [INFO] [stdout] 376 | | target_path.as_path(), [INFO] [stdout] 377 | | Some("ext4"), [INFO] [stdout] 378 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 379 | | None, [INFO] [stdout] 380 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | ptrace::setoptions(pid, ptrace::Options::PTRACE_O_TRACESYSGOOD); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | ptrace::syscall(pid, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / Errno::result( [INFO] [stdout] 46 | | unsafe { libc::ptrace(31 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut::(), std::ptr::n... [INFO] [stdout] 48 | | ) [INFO] [stdout] 49 | | .map(drop); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | / Errno::result( [INFO] [stdout] 55 | | unsafe { libc::ptrace(32 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut:: src/ptrace.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn detach(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `setregs` [INFO] [stdout] --> src/ptrace.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn setregs(pid: Pid, urs: user_regs_struct) -> Result<()> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sysemu_single` [INFO] [stdout] --> src/ptrace.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn sysemu_single(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/execution_trace_1.rs:295:4 [INFO] [stdout] | [INFO] [stdout] 295 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:192:13 [INFO] [stdout] | [INFO] [stdout] 192 | ptrace::sysemu(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:285:13 [INFO] [stdout] | [INFO] [stdout] 285 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_1.rs:310:5 [INFO] [stdout] | [INFO] [stdout] 310 | / mount::( [INFO] [stdout] 311 | | Some(source_path), [INFO] [stdout] 312 | | target_path.as_path(), [INFO] [stdout] 313 | | Some("ext4"), [INFO] [stdout] 314 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 315 | | None, [INFO] [stdout] 316 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | ptrace::setoptions(pid, ptrace::Options::PTRACE_O_TRACESYSGOOD); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | ptrace::syscall(pid, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sysemu_single` [INFO] [stdout] --> src/ptrace.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn sysemu_single(pid: Pid) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dir` [INFO] [stdout] --> src/execution_trace_2.rs:359:4 [INFO] [stdout] | [INFO] [stdout] 359 | fn dir(path: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | chdir("/root"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | mount_dir(&(&*MOUNT_DIR.read().unwrap()).as_ref().unwrap(), "target"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:145:5 [INFO] [stdout] | [INFO] [stdout] 145 | prepare_bash(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `read__guard` should have a snake case name [INFO] [stdout] --> src/execution_trace_2.rs:207:45 [INFO] [stdout] | [INFO] [stdout] 207 | ... let read__guard = command_start_check_pipe.read().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `read_guard` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:217:45 [INFO] [stdout] | [INFO] [stdout] 217 | ... pipe.unwrap().read_to_string(&mut contents); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:229:41 [INFO] [stdout] | [INFO] [stdout] 229 | ... ptrace::setregs(pid, regs); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:237:25 [INFO] [stdout] | [INFO] [stdout] 237 | ptrace::detach(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:258:13 [INFO] [stdout] | [INFO] [stdout] 258 | ptrace::sysemu(pid); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | copy_dir(entry.as_os_str().to_str().unwrap(), Path::new(target).join(entry.file_name().unwrap()).as_os_str().to_str().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/execution_trace_2.rs:374:5 [INFO] [stdout] | [INFO] [stdout] 374 | / mount::( [INFO] [stdout] 375 | | Some(source_path), [INFO] [stdout] 376 | | target_path.as_path(), [INFO] [stdout] 377 | | Some("ext4"), [INFO] [stdout] 378 | | MsFlags::MS_BIND | MsFlags::MS_REC, [INFO] [stdout] 379 | | None, [INFO] [stdout] 380 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / Errno::result( [INFO] [stdout] 46 | | unsafe { libc::ptrace(31 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut::(), std::ptr::n... [INFO] [stdout] 48 | | ) [INFO] [stdout] 49 | | .map(drop); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | / Errno::result( [INFO] [stdout] 55 | | unsafe { libc::ptrace(32 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut:: src/ptrace.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | ptrace::setoptions(pid, ptrace::Options::PTRACE_O_TRACESYSGOOD); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | ptrace::syscall(pid, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / Errno::result( [INFO] [stdout] 46 | | unsafe { libc::ptrace(31 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut::(), std::ptr::n... [INFO] [stdout] 48 | | ) [INFO] [stdout] 49 | | .map(drop); [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ptrace.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | / Errno::result( [INFO] [stdout] 55 | | unsafe { libc::ptrace(32 as libc::c_uint, libc::pid_t::from(pid), std::ptr::null_mut::(), std::ptr::null_mut::