[INFO] cloning repository https://github.com/lkitching/rlpi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lkitching/rlpi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flkitching%2Frlpi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flkitching%2Frlpi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43a1b1ed577fa2b05c3c594156fafdd0b25ba3d2
[INFO] testing lkitching/rlpi against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flkitching%2Frlpi" "/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/lkitching/rlpi on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lkitching/rlpi
[INFO] finished tweaking git repo https://github.com/lkitching/rlpi
[INFO] tweaked toml for git repo https://github.com/lkitching/rlpi written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lkitching/rlpi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7f6c1c3ce7e413f39d317833cf441913185a0f442f473c3c9398f68dec0ab72
[INFO] running `Command { std: "docker" "start" "-a" "a7f6c1c3ce7e413f39d317833cf441913185a0f442f473c3c9398f68dec0ab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f6c1c3ce7e413f39d317833cf441913185a0f442f473c3c9398f68dec0ab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f6c1c3ce7e413f39d317833cf441913185a0f442f473c3c9398f68dec0ab72", kill_on_drop: false }`
[INFO] [stdout] a7f6c1c3ce7e413f39d317833cf441913185a0f442f473c3c9398f68dec0ab72
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d51c3011fccf14536110a880eb1125b66d943a27f80fe8b00fbb52912821042
[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" "0d51c3011fccf14536110a880eb1125b66d943a27f80fe8b00fbb52912821042", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rlpi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `size_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type size_t = usize;    //from libc crate
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `SizeT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ssize_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ssize_t = c_int;    //alias depends on word size? __SSIZE_T defined as __SWORD_TYPE
[INFO] [stdout]   |          ^^^^^^^ help: convert the identifier to upper camel case: `SsizeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `off_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type off_t = c_long;    //__OFF_T_TYPE defined as __SYSCALL_SLONG_TYPE
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `OffT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `mode_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/stat.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub type mode_t = u32; //typesizes.h
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `ModeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `comp_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/acct.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type comp_t = u16;
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `CompT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ssize_t`
[INFO] [stdout]  --> src/fileio/t_readv.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{stat, iovec, ssize_t, exit, EXIT_SUCCESS, readv, size_t, open, O_RDONLY};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environ`
[INFO] [stdout]  --> src/proc/modify_env.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::libc::{environ};
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `size_t`
[INFO] [stdout]  --> src/memalloc/free_and_sbrk.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{exit, EXIT_SUCCESS, sbrk, size_t, malloc, free};
[INFO] [stdout]   |                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `usage_err`
[INFO] [stdout]  --> src/users_groups/ugid_functions.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::error_functions::{usage_err};
[INFO] [stdout]   |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clock_t`
[INFO] [stdout]  --> src/time/process_time.rs:3:75
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::{sysconf, _SC_CLK_TCK, exit, EXIT_SUCCESS, getppid, tms, times, clock_t};
[INFO] [stdout]   |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_char_ptr`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::libc::{read_char_ptr};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `S_IFLNK`, `mode_t`
[INFO] [stdout]  --> src/files/t_stat.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{exit, EXIT_SUCCESS, stat, lstat, S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK, S_IFMT,
[INFO] [stdout]   |                                                                                 ^^^^^^^
[INFO] [stdout] 6 |            major, minor, mode_t, S_ISUID, S_ISGID, S_ISVTX};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MaybeUninit`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sigemptyset`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libc::{strdup, sigemptyset, sigaction, sighandler_t, SIGINT, strcmp};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/signals/t_sigwaitinfo.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromStr`
[INFO] [stdout]  --> src/timers/real_timer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::{FromStr};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/timers/real_timer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/fork_whos_on_first.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for j in (0..num_children) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/multi_wait.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for j in (1..args.len()) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAndAssign`, `BitOrAssign`
[INFO] [stdout]  --> src/tty/tty_functions.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{BitAndAssign, BitOrAssign};
[INFO] [stdout]   |                ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdout`
[INFO] [stdout]  --> src/tty/no_echo.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::libc::stdio::{stdout};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_uchar`
[INFO] [stdout]  --> src/tty/test_tty_functions.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::{c_int, c_char, c_uchar, c_void};
[INFO] [stdout]   |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_void`
[INFO] [stdout]  --> src/tty/demo_sigwinch.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int, c_void};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/pgsjc/disc_sighup.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self,Write};
[INFO] [stdout]   |               ^^^^ ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | /     loop {
[INFO] [stdout] 71 | |     let num_read = unsafe { read(inotify_fd, buf.as_mut_ptr() as *mut c_void, BUF_LEN) };
[INFO] [stdout] 72 | |     if num_read == 0 {
[INFO] [stdout] 73 | |         fatal("read() from inotify fd returned 0");
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |     
[INFO] [stdout] 91 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 92 | 
[INFO] [stdout] 93 |       unsafe { exit(EXIT_SUCCESS); }
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/procexec/child_status.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |         unsafe { exit(status); }
[INFO] [stdout]    |                  ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 30 |         unsafe { exit(EXIT_FAILURE); }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout]    |     ^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout] 23 |     S_IFSOCK => { println!("socket"); }
[INFO] [stdout]    |     ^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 24 |     _ => { println!("unknown file type"); }
[INFO] [stdout]    |     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 32 |         _ => {
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/fileio/seek_io.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let buf = ManuallyDrop::new(buf);
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/proc/display_env.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/memalloc/free_and_sbrk.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..num_allocs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/proccred/idshow.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/calendar_time.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/show_time.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/time/process_time.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for j in 0..num_calls {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_sysconf.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {    
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `S_IFLKN`
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_S_IFLKN`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_stat.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_umask.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0..list_len {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     for j in 0..num_blocks {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for i in 0..num_read {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]  --> src/signals/ouch.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern "C" fn sig_handler(sig: c_int) {
[INFO] [stdout]   |                           ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/ouch.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/intquit.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `EPERM`
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_EPERM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ESRCH`
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ESRCH`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn print_sig_mask(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn print_pending_sigs(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/signals/sig_sender.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for j in 0..num_sigs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/signals/nonreentrant.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/real_timer.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 | extern "C" fn sigalarm_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/timed_read.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern "C" fn sigint_handler(sig: c_int) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_fork.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/exit_handlers.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_stdio_buf.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/multi_sigchld.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_system.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/no_echo.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:32:28
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn sigwinch_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/pty/script.rs:76:7
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Err(msg) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/pgsjc/t_setsid.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main(args: &[String]) {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/pgsjc/catch_sighup.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child_pid`
[INFO] [stdout]   --> src/pgsjc/disc_sighup.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |         ForkResult::Parent(child_pid) => {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_child_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut i = PWIterator { ended: false };
[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/time/calendar_time.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut t = unsafe { time(ptr::null_mut()) };
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path_s2 = path_s.clone();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/nonreentrant.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut sigstack = stack_t {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/signalfd_sigval.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut sfd = unsafe { signalfd(-1, &mask, 0) };
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut p = template_s.into_raw();    
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:20:35
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut tm: MaybeUninit<tm> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 26 |     if unsafe { strptime(in_format_cs.as_ptr(), out_format_cs.as_ptr(), tm.as_mut_ptr()) }.is_null() {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let en = unsafe { errno() };
[INFO] [stdout]    |              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let path_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let cmd_s = unsafe { CString::new(cmd_str.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/list_files.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let dir_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut statbuf = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let path_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:58:15
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut current_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut pending_sigs = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let mut blocking_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut pending_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:98:23
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut empty_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let str1_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let str2_s = unsafe { CString::new(args[2].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:42:40
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut start: MaybeUninit<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:66:42
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut itv: MaybeUninit::<itimerval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:38:45
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut start: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut remain: MaybeUninit<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:53:43
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut finish: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:66:46
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut start: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:87:41
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut now: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/new_intr.rs:33:40
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/no_echo.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/tty/test_tty_functions.rs:109:44
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut prev: MaybeUninit<sigaction> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]     |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/pgsjc/t_setsid.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] 27 |     let cs = CString::new("/dev/tty").expect("Failed to create CString");
[INFO] [stdout] 28 |     if unsafe { open(cs.as_ptr(), O_RDWR) } == -1 {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S_IFLKN` should have a snake case name
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `s_iflkn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EPERM` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `eperm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ESRCH` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `esrch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 123 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_mask`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let prev_mask = unsafe {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_mask`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:64:6
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let read = io::stdin().read(&mut buf).expect("Failed to read stdin");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `written`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:86:6
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let written = io::stdout().write(&vec![pos]).expect("Failed to write to stdout");
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:87:2
[INFO] [stdout]    |
[INFO] [stdout] 87 |     io::stdout().flush();
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.88s
[INFO] running `Command { std: "docker" "inspect" "0d51c3011fccf14536110a880eb1125b66d943a27f80fe8b00fbb52912821042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d51c3011fccf14536110a880eb1125b66d943a27f80fe8b00fbb52912821042", kill_on_drop: false }`
[INFO] [stdout] 0d51c3011fccf14536110a880eb1125b66d943a27f80fe8b00fbb52912821042
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4837a011f469bef928377b14eb5315336d35a8ddcbc93706d91858cef9ad5399
[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" "4837a011f469bef928377b14eb5315336d35a8ddcbc93706d91858cef9ad5399", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `size_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type size_t = usize;    //from libc crate
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `SizeT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ssize_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ssize_t = c_int;    //alias depends on word size? __SSIZE_T defined as __SWORD_TYPE
[INFO] [stdout]   |          ^^^^^^^ help: convert the identifier to upper camel case: `SsizeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `off_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type off_t = c_long;    //__OFF_T_TYPE defined as __SYSCALL_SLONG_TYPE
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `OffT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `mode_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/stat.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub type mode_t = u32; //typesizes.h
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `ModeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `comp_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/acct.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type comp_t = u16;
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `CompT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ssize_t`
[INFO] [stdout]  --> src/fileio/t_readv.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{stat, iovec, ssize_t, exit, EXIT_SUCCESS, readv, size_t, open, O_RDONLY};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environ`
[INFO] [stdout]  --> src/proc/modify_env.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::libc::{environ};
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `size_t`
[INFO] [stdout]  --> src/memalloc/free_and_sbrk.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{exit, EXIT_SUCCESS, sbrk, size_t, malloc, free};
[INFO] [stdout]   |                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `usage_err`
[INFO] [stdout]  --> src/users_groups/ugid_functions.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::error_functions::{usage_err};
[INFO] [stdout]   |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clock_t`
[INFO] [stdout]  --> src/time/process_time.rs:3:75
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::{sysconf, _SC_CLK_TCK, exit, EXIT_SUCCESS, getppid, tms, times, clock_t};
[INFO] [stdout]   |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_char_ptr`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::libc::{read_char_ptr};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `S_IFLNK`, `mode_t`
[INFO] [stdout]  --> src/files/t_stat.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{exit, EXIT_SUCCESS, stat, lstat, S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK, S_IFMT,
[INFO] [stdout]   |                                                                                 ^^^^^^^
[INFO] [stdout] 6 |            major, minor, mode_t, S_ISUID, S_ISGID, S_ISVTX};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MaybeUninit`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sigemptyset`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libc::{strdup, sigemptyset, sigaction, sighandler_t, SIGINT, strcmp};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/signals/t_sigwaitinfo.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromStr`
[INFO] [stdout]  --> src/timers/real_timer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::{FromStr};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/timers/real_timer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/fork_whos_on_first.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for j in (0..num_children) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/multi_wait.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for j in (1..args.len()) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAndAssign`, `BitOrAssign`
[INFO] [stdout]  --> src/tty/tty_functions.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{BitAndAssign, BitOrAssign};
[INFO] [stdout]   |                ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdout`
[INFO] [stdout]  --> src/tty/no_echo.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::libc::stdio::{stdout};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_uchar`
[INFO] [stdout]  --> src/tty/test_tty_functions.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::{c_int, c_char, c_uchar, c_void};
[INFO] [stdout]   |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_void`
[INFO] [stdout]  --> src/tty/demo_sigwinch.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int, c_void};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/pgsjc/disc_sighup.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self,Write};
[INFO] [stdout]   |               ^^^^ ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | /     loop {
[INFO] [stdout] 71 | |     let num_read = unsafe { read(inotify_fd, buf.as_mut_ptr() as *mut c_void, BUF_LEN) };
[INFO] [stdout] 72 | |     if num_read == 0 {
[INFO] [stdout] 73 | |         fatal("read() from inotify fd returned 0");
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |     
[INFO] [stdout] 91 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 92 | 
[INFO] [stdout] 93 |       unsafe { exit(EXIT_SUCCESS); }
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/procexec/child_status.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |         unsafe { exit(status); }
[INFO] [stdout]    |                  ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 30 |         unsafe { exit(EXIT_FAILURE); }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout]    |     ^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout] 23 |     S_IFSOCK => { println!("socket"); }
[INFO] [stdout]    |     ^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 24 |     _ => { println!("unknown file type"); }
[INFO] [stdout]    |     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 32 |         _ => {
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/fileio/seek_io.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let buf = ManuallyDrop::new(buf);
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/proc/display_env.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/memalloc/free_and_sbrk.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..num_allocs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/proccred/idshow.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/calendar_time.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/show_time.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/time/process_time.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for j in 0..num_calls {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_sysconf.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {    
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `S_IFLKN`
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_S_IFLKN`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_stat.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_umask.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0..list_len {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     for j in 0..num_blocks {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for i in 0..num_read {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]  --> src/signals/ouch.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern "C" fn sig_handler(sig: c_int) {
[INFO] [stdout]   |                           ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/ouch.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/intquit.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `EPERM`
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_EPERM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ESRCH`
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ESRCH`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn print_sig_mask(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn print_pending_sigs(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/signals/sig_sender.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for j in 0..num_sigs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/signals/nonreentrant.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/real_timer.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 | extern "C" fn sigalarm_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/timed_read.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern "C" fn sigint_handler(sig: c_int) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_fork.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/exit_handlers.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_stdio_buf.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/multi_sigchld.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_system.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/no_echo.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:32:28
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn sigwinch_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/pty/script.rs:76:7
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Err(msg) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/pgsjc/t_setsid.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main(args: &[String]) {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/pgsjc/catch_sighup.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child_pid`
[INFO] [stdout]   --> src/pgsjc/disc_sighup.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |         ForkResult::Parent(child_pid) => {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_child_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut i = PWIterator { ended: false };
[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/time/calendar_time.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut t = unsafe { time(ptr::null_mut()) };
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path_s2 = path_s.clone();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/nonreentrant.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut sigstack = stack_t {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/signalfd_sigval.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut sfd = unsafe { signalfd(-1, &mask, 0) };
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut p = template_s.into_raw();    
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:20:35
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut tm: MaybeUninit<tm> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 26 |     if unsafe { strptime(in_format_cs.as_ptr(), out_format_cs.as_ptr(), tm.as_mut_ptr()) }.is_null() {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let en = unsafe { errno() };
[INFO] [stdout]    |              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let path_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let cmd_s = unsafe { CString::new(cmd_str.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/list_files.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let dir_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut statbuf = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let path_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:58:15
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut current_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut pending_sigs = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let mut blocking_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut pending_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:98:23
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut empty_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let str1_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let str2_s = unsafe { CString::new(args[2].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:42:40
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut start: MaybeUninit<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:66:42
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut itv: MaybeUninit::<itimerval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:38:45
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut start: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut remain: MaybeUninit<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:53:43
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut finish: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:66:46
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut start: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rlpi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:87:41
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut now: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/new_intr.rs:33:40
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/no_echo.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/tty/test_tty_functions.rs:109:44
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut prev: MaybeUninit<sigaction> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]     |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/pgsjc/t_setsid.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] 27 |     let cs = CString::new("/dev/tty").expect("Failed to create CString");
[INFO] [stdout] 28 |     if unsafe { open(cs.as_ptr(), O_RDWR) } == -1 {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S_IFLKN` should have a snake case name
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `s_iflkn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EPERM` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `eperm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ESRCH` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `esrch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 123 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_mask`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let prev_mask = unsafe {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_mask`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/pgsjc/handling_sigtstp.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:64:6
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let read = io::stdin().read(&mut buf).expect("Failed to read stdin");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `written`
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:86:6
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let written = io::stdout().write(&vec![pos]).expect("Failed to write to stdout");
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/pgsjc/job_mon.rs:87:2
[INFO] [stdout]    |
[INFO] [stdout] 87 |     io::stdout().flush();
[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 import: `std::env`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `size_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type size_t = usize;    //from libc crate
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `SizeT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ssize_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ssize_t = c_int;    //alias depends on word size? __SSIZE_T defined as __SWORD_TYPE
[INFO] [stdout]   |          ^^^^^^^ help: convert the identifier to upper camel case: `SsizeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `off_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/types.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type off_t = c_long;    //__OFF_T_TYPE defined as __SYSCALL_SLONG_TYPE
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `OffT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `mode_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/stat.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub type mode_t = u32; //typesizes.h
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `ModeT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `comp_t` should have an upper camel case name
[INFO] [stdout]  --> src/libc/sys/acct.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type comp_t = u16;
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `CompT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ssize_t`
[INFO] [stdout]  --> src/fileio/t_readv.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{stat, iovec, ssize_t, exit, EXIT_SUCCESS, readv, size_t, open, O_RDONLY};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environ`
[INFO] [stdout]  --> src/proc/modify_env.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::libc::{environ};
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `size_t`
[INFO] [stdout]  --> src/memalloc/free_and_sbrk.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{exit, EXIT_SUCCESS, sbrk, size_t, malloc, free};
[INFO] [stdout]   |                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `usage_err`
[INFO] [stdout]  --> src/users_groups/ugid_functions.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::error_functions::{usage_err};
[INFO] [stdout]   |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clock_t`
[INFO] [stdout]  --> src/time/process_time.rs:3:75
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::{sysconf, _SC_CLK_TCK, exit, EXIT_SUCCESS, getppid, tms, times, clock_t};
[INFO] [stdout]   |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_char_ptr`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::libc::{read_char_ptr};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `S_IFLNK`, `mode_t`
[INFO] [stdout]  --> src/files/t_stat.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{exit, EXIT_SUCCESS, stat, lstat, S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK, S_IFMT,
[INFO] [stdout]   |                                                                                 ^^^^^^^
[INFO] [stdout] 6 |            major, minor, mode_t, S_ISUID, S_ISGID, S_ISVTX};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MaybeUninit`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sigemptyset`
[INFO] [stdout]  --> src/signals/nonreentrant.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libc::{strdup, sigemptyset, sigaction, sighandler_t, SIGINT, strcmp};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/signals/t_sigwaitinfo.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromStr`
[INFO] [stdout]  --> src/timers/real_timer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::{FromStr};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/timers/real_timer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/fork_whos_on_first.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for j in (0..num_children) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/procexec/multi_wait.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for j in (1..args.len()) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAndAssign`, `BitOrAssign`
[INFO] [stdout]  --> src/tty/tty_functions.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{BitAndAssign, BitOrAssign};
[INFO] [stdout]   |                ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdout`
[INFO] [stdout]  --> src/tty/no_echo.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::libc::stdio::{stdout};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_uchar`
[INFO] [stdout]  --> src/tty/test_tty_functions.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::{c_int, c_char, c_uchar, c_void};
[INFO] [stdout]   |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_void`
[INFO] [stdout]  --> src/tty/demo_sigwinch.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::raw::{c_int, c_void};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/pgsjc/disc_sighup.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self,Write};
[INFO] [stdout]   |               ^^^^ ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | /     loop {
[INFO] [stdout] 71 | |     let num_read = unsafe { read(inotify_fd, buf.as_mut_ptr() as *mut c_void, BUF_LEN) };
[INFO] [stdout] 72 | |     if num_read == 0 {
[INFO] [stdout] 73 | |         fatal("read() from inotify fd returned 0");
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |     
[INFO] [stdout] 91 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 92 | 
[INFO] [stdout] 93 |       unsafe { exit(EXIT_SUCCESS); }
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/procexec/child_status.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |         unsafe { exit(status); }
[INFO] [stdout]    |                  ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 30 |         unsafe { exit(EXIT_FAILURE); }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout]    |     ^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stdout] 23 |     S_IFSOCK => { println!("socket"); }
[INFO] [stdout]    |     ^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/files/t_stat.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 24 |     _ => { println!("unknown file type"); }
[INFO] [stdout]    |     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/signals/t_kill.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 32 |         _ => {
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/fileio/seek_io.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let buf = ManuallyDrop::new(buf);
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/proc/display_env.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/memalloc/free_and_sbrk.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..num_allocs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/proccred/idshow.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/calendar_time.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/time/show_time.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/time/process_time.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for j in 0..num_calls {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_sysconf.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {    
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/sysinfo/t_uname.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `S_IFLKN`
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_S_IFLKN`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_stat.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/files/t_umask.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0..list_len {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/xattr/xattr_view.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     for j in 0..num_blocks {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for i in 0..num_read {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]  --> src/signals/ouch.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern "C" fn sig_handler(sig: c_int) {
[INFO] [stdout]   |                           ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/ouch.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/intquit.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `EPERM`
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_EPERM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ESRCH`
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ESRCH`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:38:38
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn print_sig_mask(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/signals/signal_functions.rs:49:42
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn print_pending_sigs(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/signals/sig_sender.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for j in 0..num_sigs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/signals/nonreentrant.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/real_timer.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 | extern "C" fn sigalarm_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/timed_read.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern "C" fn sigint_handler(sig: c_int) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_fork.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_sig_sync.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/exit_handlers.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/fork_stdio_buf.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/procexec/multi_sigchld.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/procexec/t_system.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/no_echo.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/test_tty_functions.rs:32:28
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn sigwinch_handler(sig: c_int) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/tty/demo_sigwinch.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main(args: &[String]) {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/pty/script.rs:76:7
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Err(msg) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/pgsjc/t_setsid.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main(args: &[String]) {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]   --> src/pgsjc/catch_sighup.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern "C" fn handler(sig: c_int) {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child_pid`
[INFO] [stdout]   --> src/pgsjc/disc_sighup.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |         ForkResult::Parent(child_pid) => {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_child_pid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/users_groups/ugid_functions.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut i = PWIterator { ended: false };
[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/time/calendar_time.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut t = unsafe { time(ptr::null_mut()) };
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path_s2 = path_s.clone();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/nonreentrant.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigaltstack.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut sigstack = stack_t {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/t_sigsuspend.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut sa = sigaction {
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signals/signalfd_sigval.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut sfd = unsafe { signalfd(-1, &mask, 0) };
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/procexec/fork_file_sharing.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut p = template_s.into_raw();    
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:20:35
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut tm: MaybeUninit<tm> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/time/strtime.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 26 |     if unsafe { strptime(in_format_cs.as_ptr(), out_format_cs.as_ptr(), tm.as_mut_ptr()) }.is_null() {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/syslim/t_fpathconf.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let en = unsafe { errno() };
[INFO] [stdout]    |              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let path_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_unlink.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let cmd_s = unsafe { CString::new(cmd_str.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/list_files.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let dir_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut statbuf = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/view_symlink.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let path_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dirs_links/t_dirbasename.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/inotify/demo_inotify.rs:58:15
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut current_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/signal_functions.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut pending_sigs = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let mut blocking_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut pending_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/sig_receiver.rs:98:23
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut empty_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let str1_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/signals/nonreentrant.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let str2_s = unsafe { CString::new(args[2].as_str()).expect("Failed to create CString") };
[INFO] [stdout]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:42:40
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut start: MaybeUninit<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/real_timer.rs:66:42
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut itv: MaybeUninit::<itimerval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:38:45
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut start: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut remain: MaybeUninit<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/t_nanosleep.rs:53:43
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut finish: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:66:46
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut start: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/timers/demo_timerfd.rs:87:41
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut now: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/new_intr.rs:33:40
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/tty/no_echo.rs:12:40
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/tty/test_tty_functions.rs:109:44
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut prev: MaybeUninit<sigaction> = unsafe { MaybeUninit::uninit() };
[INFO] [stdout]     |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/pgsjc/t_setsid.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     unsafe {
[INFO] [stdout]    |     ------ because it's nested under this `unsafe` block
[INFO] [stdout] 27 |     let cs = CString::new("/dev/tty").expect("Failed to create CString");
[INFO] [stdout] 28 |     if unsafe { open(cs.as_ptr(), O_RDWR) } == -1 {
[INFO] [stdout]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S_IFLKN` should have a snake case name
[INFO] [stdout]   --> src/files/t_stat.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `s_iflkn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EPERM` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         EPERM => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `eperm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ESRCH` should have a snake case name
[INFO] [stdout]   --> src/signals/t_kill.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ESRCH => {
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `esrch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 123 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "4837a011f469bef928377b14eb5315336d35a8ddcbc93706d91858cef9ad5399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4837a011f469bef928377b14eb5315336d35a8ddcbc93706d91858cef9ad5399", kill_on_drop: false }`
[INFO] [stdout] 4837a011f469bef928377b14eb5315336d35a8ddcbc93706d91858cef9ad5399
[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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4483536ffea036b8e689bbcc69f5a6ed8ce0ac40abd652aba7bcf92be52057c4
[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" "4483536ffea036b8e689bbcc69f5a6ed8ce0ac40abd652aba7bcf92be52057c4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `size_t` should have an upper camel case name
[INFO] [stderr]  --> src/libc/sys/types.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub type size_t = usize;    //from libc crate
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `SizeT`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `ssize_t` should have an upper camel case name
[INFO] [stderr]  --> src/libc/sys/types.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type ssize_t = c_int;    //alias depends on word size? __SSIZE_T defined as __SWORD_TYPE
[INFO] [stderr]   |          ^^^^^^^ help: convert the identifier to upper camel case: `SsizeT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `off_t` should have an upper camel case name
[INFO] [stderr]  --> src/libc/sys/types.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type off_t = c_long;    //__OFF_T_TYPE defined as __SYSCALL_SLONG_TYPE
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `OffT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `mode_t` should have an upper camel case name
[INFO] [stderr]  --> src/libc/sys/stat.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub type mode_t = u32; //typesizes.h
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `ModeT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `comp_t` should have an upper camel case name
[INFO] [stderr]  --> src/libc/sys/acct.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type comp_t = u16;
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `CompT`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ssize_t`
[INFO] [stderr]  --> src/fileio/t_readv.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use libc::{stat, iovec, ssize_t, exit, EXIT_SUCCESS, readv, size_t, open, O_RDONLY};
[INFO] [stderr]   |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `environ`
[INFO] [stderr]  --> src/proc/modify_env.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::libc::{environ};
[INFO] [stderr]   |                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `size_t`
[INFO] [stderr]  --> src/memalloc/free_and_sbrk.rs:4:38
[INFO] [stderr]   |
[INFO] [stderr] 4 | use libc::{exit, EXIT_SUCCESS, sbrk, size_t, malloc, free};
[INFO] [stderr]   |                                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `usage_err`
[INFO] [stderr]  --> src/users_groups/ugid_functions.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::error_functions::{usage_err};
[INFO] [stderr]   |                              ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `clock_t`
[INFO] [stderr]  --> src/time/process_time.rs:3:75
[INFO] [stderr]   |
[INFO] [stderr] 3 | use libc::{sysconf, _SC_CLK_TCK, exit, EXIT_SUCCESS, getppid, tms, times, clock_t};
[INFO] [stderr]   |                                                                           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `read_char_ptr`
[INFO] [stderr]  --> src/sysinfo/t_uname.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::libc::{read_char_ptr};
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `S_IFLNK`, `mode_t`
[INFO] [stderr]  --> src/files/t_stat.rs:5:81
[INFO] [stderr]   |
[INFO] [stderr] 5 | use libc::{exit, EXIT_SUCCESS, stat, lstat, S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK, S_IFMT,
[INFO] [stderr]   |                                                                                 ^^^^^^^
[INFO] [stderr] 6 |            major, minor, mode_t, S_ISUID, S_ISGID, S_ISVTX};
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MaybeUninit`
[INFO] [stderr]  --> src/signals/nonreentrant.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem::{MaybeUninit};
[INFO] [stderr]   |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sigemptyset`
[INFO] [stderr]  --> src/signals/nonreentrant.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | use libc::{strdup, sigemptyset, sigaction, sighandler_t, SIGINT, strcmp};
[INFO] [stderr]   |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `c_int`
[INFO] [stderr]  --> src/signals/t_sigwaitinfo.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::os::raw::{c_int};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromStr`
[INFO] [stderr]  --> src/timers/real_timer.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::{FromStr};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/timers/real_timer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/procexec/fork_whos_on_first.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |     for j in (0..num_children) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/procexec/multi_wait.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for j in (1..args.len()) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BitAndAssign`, `BitOrAssign`
[INFO] [stderr]  --> src/tty/tty_functions.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::{BitAndAssign, BitOrAssign};
[INFO] [stderr]   |                ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `stdout`
[INFO] [stderr]  --> src/tty/no_echo.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::libc::stdio::{stdout};
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `c_uchar`
[INFO] [stderr]  --> src/tty/test_tty_functions.rs:2:35
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::os::raw::{c_int, c_char, c_uchar, c_void};
[INFO] [stderr]   |                                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `c_void`
[INFO] [stderr]  --> src/tty/demo_sigwinch.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::os::raw::{c_int, c_void};
[INFO] [stderr]   |                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/pgsjc/disc_sighup.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self,Write};
[INFO] [stderr]   |               ^^^^ ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/inotify/demo_inotify.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 70 | /     loop {
[INFO] [stderr] 71 | |     let num_read = unsafe { read(inotify_fd, buf.as_mut_ptr() as *mut c_void, BUF_LEN) };
[INFO] [stderr] 72 | |     if num_read == 0 {
[INFO] [stderr] 73 | |         fatal("read() from inotify fd returned 0");
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |     
[INFO] [stderr] 91 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 92 | 
[INFO] [stderr] 93 |       unsafe { exit(EXIT_SUCCESS); }
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/procexec/child_status.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 23 |         unsafe { exit(status); }
[INFO] [stderr]    |                  ------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 30 |         unsafe { exit(EXIT_FAILURE); }
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/files/t_stat.rs:22:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stderr]    |     ------- matches any value
[INFO] [stderr] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stderr]    |     ^^^^^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/files/t_stat.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stderr]    |     ------- matches any value
[INFO] [stderr] 22 |     S_IFIFO => { println!("FIFO or pipe"); },
[INFO] [stderr] 23 |     S_IFSOCK => { println!("socket"); }
[INFO] [stderr]    |     ^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/files/t_stat.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stderr]    |     ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 24 |     _ => { println!("unknown file type"); }
[INFO] [stderr]    |     ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/signals/t_kill.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |         EPERM => {
[INFO] [stderr]    |         ----- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 29 |         ESRCH => {
[INFO] [stderr]    |         ^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/signals/t_kill.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |         EPERM => {
[INFO] [stderr]    |         ----- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 32 |         _ => {
[INFO] [stderr]    |         ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/fileio/seek_io.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 |             let buf = ManuallyDrop::new(buf);
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]  --> src/proc/display_env.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/memalloc/free_and_sbrk.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     for i in 0..num_allocs {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/users_groups/ugid_functions.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/proccred/idshow.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/time/calendar_time.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/time/show_time.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/time/process_time.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     for j in 0..num_calls {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/syslim/t_sysconf.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/syslim/t_fpathconf.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn main(args: &[String]) -> ! {    
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]  --> src/sysinfo/t_uname.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `S_IFLKN`
[INFO] [stderr]   --> src/files/t_stat.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stderr]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_S_IFLKN`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/files/t_stat.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/files/t_umask.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/xattr/xattr_view.rs:41:6
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for i in 0..list_len {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/xattr/xattr_view.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/dirs_links/t_unlink.rs:43:6
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for j in 0..num_blocks {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/inotify/demo_inotify.rs:84:6
[INFO] [stderr]    |
[INFO] [stderr] 84 |     for i in 0..num_read {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]  --> src/signals/ouch.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 | extern "C" fn sig_handler(sig: c_int) {
[INFO] [stderr]   |                           ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/signals/ouch.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn main(args: &[String]) {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/signals/intquit.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn main(args: &[String]) {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `EPERM`
[INFO] [stderr]   --> src/signals/t_kill.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |         EPERM => {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_EPERM`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ESRCH`
[INFO] [stderr]   --> src/signals/t_kill.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |         ESRCH => {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ESRCH`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/signals/signal_functions.rs:38:38
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn print_sig_mask(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stderr]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/signals/signal_functions.rs:49:42
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_pending_sigs(of: *mut FILE, msg: &str) -> Result<(), ()> {
[INFO] [stderr]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/signals/sig_sender.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     for j in 0..num_sigs {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/signals/nonreentrant.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/signals/t_sigaltstack.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn main(args: &[String]) {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/signals/t_sigsuspend.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/timers/real_timer.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 | extern "C" fn sigalarm_handler(sig: c_int) {
[INFO] [stderr]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/timers/timed_read.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/timers/t_nanosleep.rs:12:30
[INFO] [stderr]    |
[INFO] [stderr] 12 | extern "C" fn sigint_handler(sig: c_int) {
[INFO] [stderr]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/t_fork.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/fork_file_sharing.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/procexec/fork_sig_sync.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/fork_sig_sync.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/exit_handlers.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/fork_stdio_buf.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/procexec/multi_sigchld.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/procexec/t_system.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/tty/no_echo.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn main(args: &[String]) -> ! {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/tty/test_tty_functions.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/tty/test_tty_functions.rs:32:28
[INFO] [stderr]    |
[INFO] [stderr] 32 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/tty/demo_sigwinch.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 | extern "C" fn sigwinch_handler(sig: c_int) {
[INFO] [stderr]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/tty/demo_sigwinch.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn main(args: &[String]) {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/pty/script.rs:76:7
[INFO] [stderr]    |
[INFO] [stderr] 76 |         Err(msg) => {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]  --> src/pgsjc/t_setsid.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn main(args: &[String]) {
[INFO] [stderr]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/pgsjc/catch_sighup.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 | extern "C" fn handler(sig: c_int) {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child_pid`
[INFO] [stderr]   --> src/pgsjc/disc_sighup.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 |         ForkResult::Parent(child_pid) => {
[INFO] [stderr]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_child_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/users_groups/ugid_functions.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let mut i = PWIterator { ended: false };
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/time/calendar_time.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut t = unsafe { time(ptr::null_mut()) };
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dirs_links/t_dirbasename.rs:11:6
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dirs_links/t_dirbasename.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut path_s2 = path_s.clone();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signals/nonreentrant.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut sa = sigaction {
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signals/t_sigaltstack.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut sigstack = stack_t {
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signals/t_sigsuspend.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut sa = sigaction {
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signals/signalfd_sigval.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut sfd = unsafe { signalfd(-1, &mask, 0) };
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/procexec/fork_file_sharing.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut p = template_s.into_raw();    
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/time/strtime.rs:20:35
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut tm: MaybeUninit<tm> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/time/strtime.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     unsafe {
[INFO] [stderr]    |     ------ because it's nested under this `unsafe` block
[INFO] [stderr] ...
[INFO] [stderr] 26 |     if unsafe { strptime(in_format_cs.as_ptr(), out_format_cs.as_ptr(), tm.as_mut_ptr()) }.is_null() {
[INFO] [stderr]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/syslim/t_fpathconf.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let en = unsafe { errno() };
[INFO] [stderr]    |              ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/t_unlink.rs:21:18
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let path_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/t_unlink.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let cmd_s = unsafe { CString::new(cmd_str.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/list_files.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let dir_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stderr]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/view_symlink.rs:15:23
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut statbuf = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/view_symlink.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let path_s = unsafe { CString::new(path).expect("Failed to create CString") };
[INFO] [stderr]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/dirs_links/t_dirbasename.rs:11:19
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/inotify/demo_inotify.rs:58:15
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let path_s = unsafe { CString::new(path.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/signal_functions.rs:26:18
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/signal_functions.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let msg_s = unsafe { CString::new(msg.as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/signal_functions.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut current_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/signal_functions.rs:50:28
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut pending_sigs = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/sig_receiver.rs:76:26
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut blocking_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/sig_receiver.rs:88:25
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let mut pending_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/sig_receiver.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut empty_mask = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/nonreentrant.rs:29:18
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let str1_s = unsafe { CString::new(args[1].as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/signals/nonreentrant.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let str2_s = unsafe { CString::new(args[2].as_str()).expect("Failed to create CString") };
[INFO] [stderr]    |                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/real_timer.rs:42:40
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut start: MaybeUninit<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/real_timer.rs:66:42
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut itv: MaybeUninit::<itimerval> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/t_nanosleep.rs:38:45
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut start: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/t_nanosleep.rs:45:42
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut remain: MaybeUninit<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/t_nanosleep.rs:53:43
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut finish: MaybeUninit::<timeval> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/demo_timerfd.rs:66:46
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut start: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/timers/demo_timerfd.rs:87:41
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let mut now: MaybeUninit::<timespec> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/tty/new_intr.rs:33:40
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/tty/no_echo.rs:12:40
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut tp: MaybeUninit<termios> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]    |                                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/tty/test_tty_functions.rs:109:44
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut prev: MaybeUninit<sigaction> = unsafe { MaybeUninit::uninit() };
[INFO] [stderr]     |                                            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/pgsjc/t_setsid.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     unsafe {
[INFO] [stderr]    |     ------ because it's nested under this `unsafe` block
[INFO] [stderr] 27 |     let cs = CString::new("/dev/tty").expect("Failed to create CString");
[INFO] [stderr] 28 |     if unsafe { open(cs.as_ptr(), O_RDWR) } == -1 {
[INFO] [stderr]    |        ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: variable `S_IFLKN` should have a snake case name
[INFO] [stderr]   --> src/files/t_stat.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     S_IFLKN => { println!("symbolic (soft) link"); },
[INFO] [stderr]    |     ^^^^^^^ help: convert the identifier to snake case: `s_iflkn`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `EPERM` should have a snake case name
[INFO] [stderr]   --> src/signals/t_kill.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |         EPERM => {
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `eperm`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ESRCH` should have a snake case name
[INFO] [stderr]   --> src/signals/t_kill.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |         ESRCH => {
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `esrch`
[INFO] [stderr] 
[INFO] [stderr] warning: `rlpi` (lib) generated 123 warnings
[INFO] [stderr] warning: `rlpi` (lib test) generated 123 warnings (123 duplicates)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/pgsjc/job_mon.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read`
[INFO] [stderr]   --> src/pgsjc/job_mon.rs:64:6
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let read = io::stdin().read(&mut buf).expect("Failed to read stdin");
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `written`
[INFO] [stderr]   --> src/pgsjc/job_mon.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let written = io::stdout().write(&vec![pos]).expect("Failed to write to stdout");
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/pgsjc/job_mon.rs:87:2
[INFO] [stderr]    |
[INFO] [stderr] 87 |     io::stdout().flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prev_mask`
[INFO] [stderr]   --> src/pgsjc/handling_sigtstp.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let prev_mask = unsafe {
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_mask`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/pgsjc/handling_sigtstp.rs:15:28
[INFO] [stderr]    |
[INFO] [stderr] 15 | extern "C" fn tstp_handler(sig: c_int) {
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/pgsjc/handling_sigtstp.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: `rlpi` (bin "job_mon" test) generated 4 warnings
[INFO] [stderr] warning: `rlpi` (bin "handling_sigtstp" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rlpi-d59fd4fbe94b09c4)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/handling_sigtstp-ce4a79f3000fdb04)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/job_mon-df4394210f22ed75)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/orphaned_pgrp_sighup-8ccc8667ef715173)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rlpi
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: type `size_t` should have an upper camel case name
[INFO] [stderr]  --> /opt/rustwide/workdir/src/libc/sys/types.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub type size_t = usize;    //from libc crate
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `SizeT`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `ssize_t` should have an upper camel case name
[INFO] [stderr]  --> /opt/rustwide/workdir/src/libc/sys/types.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type ssize_t = c_int;    //alias depends on word size? __SSIZE_T defined as __SWORD_TYPE
[INFO] [stderr]   |          ^^^^^^^ help: convert the identifier to upper camel case: `SsizeT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `off_t` should have an upper camel case name
[INFO] [stderr]  --> /opt/rustwide/workdir/src/libc/sys/types.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type off_t = c_long;    //__OFF_T_TYPE defined as __SYSCALL_SLONG_TYPE
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `OffT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `mode_t` should have an upper camel case name
[INFO] [stderr]  --> /opt/rustwide/workdir/src/libc/sys/stat.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub type mode_t = u32; //typesizes.h
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `ModeT`
[INFO] [stderr] 
[INFO] [stderr] warning: type `comp_t` should have an upper camel case name
[INFO] [stderr]  --> /opt/rustwide/workdir/src/libc/sys/acct.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type comp_t = u16;
[INFO] [stderr]   |          ^^^^^^ help: convert the identifier to upper camel case: `CompT`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> /opt/rustwide/workdir/src/procexec/fork_whos_on_first.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |     for j in (0..num_children) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> /opt/rustwide/workdir/src/procexec/multi_wait.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for j in (1..args.len()) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4483536ffea036b8e689bbcc69f5a6ed8ce0ac40abd652aba7bcf92be52057c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4483536ffea036b8e689bbcc69f5a6ed8ce0ac40abd652aba7bcf92be52057c4", kill_on_drop: false }`
[INFO] [stdout] 4483536ffea036b8e689bbcc69f5a6ed8ce0ac40abd652aba7bcf92be52057c4