[INFO] cloning repository https://github.com/mkilgore/rshell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkilgore/rshell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkilgore%2Frshell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkilgore%2Frshell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4553cf1c2ecfc193a1fcbdf1044f5e9a6e54d131
[INFO] checking mkilgore/rshell against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkilgore%2Frshell" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkilgore/rshell on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mkilgore/rshell
[INFO] finished tweaking git repo https://github.com/mkilgore/rshell
[INFO] tweaked toml for git repo https://github.com/mkilgore/rshell written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mkilgore/rshell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e99535bbbf378be8a5c1e17a8b75d246c93b3339f4262c8f773051ae685a165
[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" "6e99535bbbf378be8a5c1e17a8b75d246c93b3339f4262c8f773051ae685a165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e99535bbbf378be8a5c1e17a8b75d246c93b3339f4262c8f773051ae685a165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e99535bbbf378be8a5c1e17a8b75d246c93b3339f4262c8f773051ae685a165", kill_on_drop: false }`
[INFO] [stdout] 6e99535bbbf378be8a5c1e17a8b75d246c93b3339f4262c8f773051ae685a165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4980ee6d7ba5099a468fb4d5538cdea8e97a25cb143333161b98f714f956683
[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" "b4980ee6d7ba5099a468fb4d5538cdea8e97a25cb143333161b98f714f956683", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking rshell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/job.rs:91:23
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     { ; }
[INFO] [stdout]    |                       ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/builtin.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 ;
[INFO] [stdout]     |                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/job_list.rs:38:44
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.list.push(Arc::new(Mutex::new((job))));
[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 trailing semicolon
[INFO] [stdout]   --> src/job.rs:91:23
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     { ; }
[INFO] [stdout]    |                       ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/builtin.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 ;
[INFO] [stdout]     |                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/job_list.rs:38:44
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.list.push(Arc::new(Mutex::new((job))));
[INFO] [stdout]    |                                            ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/builtin.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / lazy_static! {
[INFO] [stdout] 27 | |     static ref BUILTIN_MAP: HashMap<&'static str, ShellBuiltin> = {
[INFO] [stdout] 28 | |         let mut m = HashMap::new();
[INFO] [stdout] 29 | |         m.insert("pwd",  ShellBuiltin::new(builtin_pwd));
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     };
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/builtin.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / lazy_static! {
[INFO] [stdout] 27 | |     static ref BUILTIN_MAP: HashMap<&'static str, ShellBuiltin> = {
[INFO] [stdout] 28 | |         let mut m = HashMap::new();
[INFO] [stdout] 29 | |         m.insert("pwd",  ShellBuiltin::new(builtin_pwd));
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     };
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / lazy_static! {
[INFO] [stdout] 23 | |     pub static ref JOB_LIST: Mutex<JobList> = Mutex::new(JobList::new());
[INFO] [stdout] 24 | |     pub static ref CURRENT_DIR: Mutex<String> = Mutex::new(String::new());
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/builtin.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / lazy_static! {
[INFO] [stdout] 27 | |     static ref BUILTIN_MAP: HashMap<&'static str, ShellBuiltin> = {
[INFO] [stdout] 28 | |         let mut m = HashMap::new();
[INFO] [stdout] 29 | |         m.insert("pwd",  ShellBuiltin::new(builtin_pwd));
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     };
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/builtin.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / lazy_static! {
[INFO] [stdout] 27 | |     static ref BUILTIN_MAP: HashMap<&'static str, ShellBuiltin> = {
[INFO] [stdout] 28 | |         let mut m = HashMap::new();
[INFO] [stdout] 29 | |         m.insert("pwd",  ShellBuiltin::new(builtin_pwd));
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     };
[INFO] [stdout] 37 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/job.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
[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: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:110:96
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   cur_prog.stdout = unsafe { libc::open(CString::new(s).unwrap().as_ptr(),
[INFO] [stdout]     |                                                             ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                             |
[INFO] [stdout]     |                                                             this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:113:96
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   cur_prog.stdout = unsafe { libc::open(CString::new(s).unwrap().as_ptr(),
[INFO] [stdout]     |                                                             ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                             |
[INFO] [stdout]     |                                                             this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:116:95
[INFO] [stdout]     |
[INFO] [stdout] 116 | ...                   cur_prog.stdin = unsafe { libc::open(CString::new(s).unwrap().as_ptr(), libc::O_RDONLY) };
[INFO] [stdout]     |                                                            ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/prog.rs:89:63
[INFO] [stdout]    |
[INFO] [stdout] 89 |         libc::execvp(CString::new(self.file.clone()).unwrap().as_ptr() as *const libc::c_char, c_char_vec.as_ptr() as *const *const libc:...
[INFO] [stdout]    |                      ---------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/job.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
[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: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:110:96
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   cur_prog.stdout = unsafe { libc::open(CString::new(s).unwrap().as_ptr(),
[INFO] [stdout]     |                                                             ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                             |
[INFO] [stdout]     |                                                             this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:113:96
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   cur_prog.stdout = unsafe { libc::open(CString::new(s).unwrap().as_ptr(),
[INFO] [stdout]     |                                                             ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                             |
[INFO] [stdout]     |                                                             this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/job.rs:116:95
[INFO] [stdout]     |
[INFO] [stdout] 116 | ...                   cur_prog.stdin = unsafe { libc::open(CString::new(s).unwrap().as_ptr(), libc::O_RDONLY) };
[INFO] [stdout]     |                                                            ------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/prog.rs:89:63
[INFO] [stdout]    |
[INFO] [stdout] 89 |         libc::execvp(CString::new(self.file.clone()).unwrap().as_ptr() as *const libc::c_char, c_char_vec.as_ptr() as *const *const libc:...
[INFO] [stdout]    |                      ---------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "b4980ee6d7ba5099a468fb4d5538cdea8e97a25cb143333161b98f714f956683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4980ee6d7ba5099a468fb4d5538cdea8e97a25cb143333161b98f714f956683", kill_on_drop: false }`
[INFO] [stdout] b4980ee6d7ba5099a468fb4d5538cdea8e97a25cb143333161b98f714f956683