[INFO] fetching crate libcgroup_rs 0.1.0...
[INFO] testing libcgroup_rs-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate libcgroup_rs 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate libcgroup_rs 0.1.0
[INFO] finished tweaking crates.io crate libcgroup_rs 0.1.0
[INFO] tweaked toml for crates.io crate libcgroup_rs 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libcgroup_rs 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2fe95307ab36f5e54fe6b15dcbeda07e115fa7097624d6f31471a584bfdce3f
[INFO] running `Command { std: "docker" "start" "-a" "c2fe95307ab36f5e54fe6b15dcbeda07e115fa7097624d6f31471a584bfdce3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fe95307ab36f5e54fe6b15dcbeda07e115fa7097624d6f31471a584bfdce3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fe95307ab36f5e54fe6b15dcbeda07e115fa7097624d6f31471a584bfdce3f", kill_on_drop: false }`
[INFO] [stdout] c2fe95307ab36f5e54fe6b15dcbeda07e115fa7097624d6f31471a584bfdce3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc16ea818e7a4ea7993f4aacefb4de63f800f7ed6f9246320dd42c5a1240b03f
[INFO] running `Command { std: "docker" "start" "-a" "bc16ea818e7a4ea7993f4aacefb4de63f800f7ed6f9246320dd42c5a1240b03f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcgroup_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `c_groups` are never read
[INFO] [stdout]   --> src/manipulation.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct CGroupControllerBuilder{
[INFO] [stdout]    |            ----------------------- fields in this struct
[INFO] [stdout] 95 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 96 |     c_groups:*mut cgroup,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CGroupControllerBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/manipulation.rs:569:38
[INFO] [stdout]     |
[INFO] [stdout] 569 |             match Self::new(self.name.clone()) {
[INFO] [stdout]     |                                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:124:59
[INFO] [stdout]     |
[INFO] [stdout] 124 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:125:59
[INFO] [stdout]     |
[INFO] [stdout] 125 |             base_path: std::ffi::CString::new(base_path)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:228:59
[INFO] [stdout]     |
[INFO] [stdout] 228 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:229:59
[INFO] [stdout]     |
[INFO] [stdout] 229 |             path_name: std::ffi::CString::new(path_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:309:55
[INFO] [stdout]     |
[INFO] [stdout] 309 |             cg_name: std::ffi::CString::new(cg_name)?.as_ptr(),
[INFO] [stdout]     |                      -------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:310:59
[INFO] [stdout]     |
[INFO] [stdout] 310 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "bc16ea818e7a4ea7993f4aacefb4de63f800f7ed6f9246320dd42c5a1240b03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc16ea818e7a4ea7993f4aacefb4de63f800f7ed6f9246320dd42c5a1240b03f", kill_on_drop: false }`
[INFO] [stdout] bc16ea818e7a4ea7993f4aacefb4de63f800f7ed6f9246320dd42c5a1240b03f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5fbbfaff5b762adda494f24b5f5de71643f9d53d7e31ec7f48009a0265a6287
[INFO] running `Command { std: "docker" "start" "-a" "a5fbbfaff5b762adda494f24b5f5de71643f9d53d7e31ec7f48009a0265a6287", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcgroup_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `c_groups` are never read
[INFO] [stdout]   --> src/manipulation.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct CGroupControllerBuilder{
[INFO] [stdout]    |            ----------------------- fields in this struct
[INFO] [stdout] 95 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 96 |     c_groups:*mut cgroup,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CGroupControllerBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/manipulation.rs:569:38
[INFO] [stdout]     |
[INFO] [stdout] 569 |             match Self::new(self.name.clone()) {
[INFO] [stdout]     |                                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:124:59
[INFO] [stdout]     |
[INFO] [stdout] 124 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:125:59
[INFO] [stdout]     |
[INFO] [stdout] 125 |             base_path: std::ffi::CString::new(base_path)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:228:59
[INFO] [stdout]     |
[INFO] [stdout] 228 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:229:59
[INFO] [stdout]     |
[INFO] [stdout] 229 |             path_name: std::ffi::CString::new(path_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:309:55
[INFO] [stdout]     |
[INFO] [stdout] 309 |             cg_name: std::ffi::CString::new(cg_name)?.as_ptr(),
[INFO] [stdout]     |                      -------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:310:59
[INFO] [stdout]     |
[INFO] [stdout] 310 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `c_groups` are never read
[INFO] [stdout]   --> src/manipulation.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct CGroupControllerBuilder{
[INFO] [stdout]    |            ----------------------- fields in this struct
[INFO] [stdout] 95 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 96 |     c_groups:*mut cgroup,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CGroupControllerBuilder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/manipulation.rs:569:38
[INFO] [stdout]     |
[INFO] [stdout] 569 |             match Self::new(self.name.clone()) {
[INFO] [stdout]     |                                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:124:59
[INFO] [stdout]     |
[INFO] [stdout] 124 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:125:59
[INFO] [stdout]     |
[INFO] [stdout] 125 |             base_path: std::ffi::CString::new(base_path)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:228:59
[INFO] [stdout]     |
[INFO] [stdout] 228 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:229:59
[INFO] [stdout]     |
[INFO] [stdout] 229 |             path_name: std::ffi::CString::new(path_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:309:55
[INFO] [stdout]     |
[INFO] [stdout] 309 |             cg_name: std::ffi::CString::new(cg_name)?.as_ptr(),
[INFO] [stdout]     |                      -------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `CString` will be dropped
[INFO] [stdout]    --> src/iterators.rs:310:59
[INFO] [stdout]     |
[INFO] [stdout] 310 |             ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(),
[INFO] [stdout]     |                        ---------------------------------- ^^^^^^ this pointer will immediately 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: you must make sure that the variable you bind the `CString` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `CString` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcNkTWad/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-2a404bf286bfef54,liblibc-7a54cdb917ea7291,liblog-40ebd7d040175aeb}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lcgroup" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcNkTWad/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_task-7b09fbe569fd03f9" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lcgroup
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustctoSWBL/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bdynamic" "-lcgroup" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblibc-7a54cdb917ea7291.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/liblog-40ebd7d040175aeb.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustctoSWBL/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/libcgroup_rs-3812adbe47c4db74" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lcgroup
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libcgroup_rs` (test "test_task") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `libcgroup_rs` (lib test) due to 1 previous error; 8 warnings emitted
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcpqInsO/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-2a404bf286bfef54,liblibc-7a54cdb917ea7291,liblog-40ebd7d040175aeb}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lcgroup" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcpqInsO/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_work-99a5aa0343509331" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lcgroup
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libcgroup_rs` (test "test_work") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcRfRy3K/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-2a404bf286bfef54,liblibc-7a54cdb917ea7291,liblog-40ebd7d040175aeb}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lcgroup" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcRfRy3K/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_iter-2a4cfc074b65ab50" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lcgroup
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libcgroup_rs` (test "test_iter") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a5fbbfaff5b762adda494f24b5f5de71643f9d53d7e31ec7f48009a0265a6287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5fbbfaff5b762adda494f24b5f5de71643f9d53d7e31ec7f48009a0265a6287", kill_on_drop: false }`
[INFO] [stdout] a5fbbfaff5b762adda494f24b5f5de71643f9d53d7e31ec7f48009a0265a6287
