[INFO] fetching crate libcgroup_rs 0.1.0... [INFO] testing libcgroup_rs-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] extracting crate libcgroup_rs 0.1.0 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate libcgroup_rs 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 676bb316bef216fbc14a187d89cece21a84d6d8aaf1213113b7f5485dbcb0b1d [INFO] running `Command { std: "docker" "start" "-a" "676bb316bef216fbc14a187d89cece21a84d6d8aaf1213113b7f5485dbcb0b1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "676bb316bef216fbc14a187d89cece21a84d6d8aaf1213113b7f5485dbcb0b1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "676bb316bef216fbc14a187d89cece21a84d6d8aaf1213113b7f5485dbcb0b1d", kill_on_drop: false }` [INFO] [stdout] 676bb316bef216fbc14a187d89cece21a84d6d8aaf1213113b7f5485dbcb0b1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 461d9eba818237a0e55a2b22b995182c299d110e82e427c9c5774046940bb1ba [INFO] running `Command { std: "docker" "start" "-a" "461d9eba818237a0e55a2b22b995182c299d110e82e427c9c5774046940bb1ba", 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: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:124:59 [INFO] [stdout] | [INFO] [stdout] 124 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:125:59 [INFO] [stdout] | [INFO] [stdout] 125 | base_path: std::ffi::CString::new(base_path)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:228:59 [INFO] [stdout] | [INFO] [stdout] 228 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:229:59 [INFO] [stdout] | [INFO] [stdout] 229 | path_name: std::ffi::CString::new(path_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:309:55 [INFO] [stdout] | [INFO] [stdout] 309 | cg_name: std::ffi::CString::new(cg_name)?.as_ptr(), [INFO] [stdout] | -------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:310:59 [INFO] [stdout] | [INFO] [stdout] 310 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s [INFO] running `Command { std: "docker" "inspect" "461d9eba818237a0e55a2b22b995182c299d110e82e427c9c5774046940bb1ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "461d9eba818237a0e55a2b22b995182c299d110e82e427c9c5774046940bb1ba", kill_on_drop: false }` [INFO] [stdout] 461d9eba818237a0e55a2b22b995182c299d110e82e427c9c5774046940bb1ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 152cc672d6795e4bad8852dca37dcc441efc533aaf7f4d2843d17ef524b7e43e [INFO] running `Command { std: "docker" "start" "-a" "152cc672d6795e4bad8852dca37dcc441efc533aaf7f4d2843d17ef524b7e43e", kill_on_drop: false }` [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: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:124:59 [INFO] [stdout] | [INFO] [stdout] 124 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:125:59 [INFO] [stdout] | [INFO] [stdout] 125 | base_path: std::ffi::CString::new(base_path)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling libcgroup_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:228:59 [INFO] [stdout] | [INFO] [stdout] 228 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:229:59 [INFO] [stdout] | [INFO] [stdout] 229 | path_name: std::ffi::CString::new(path_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:309:55 [INFO] [stdout] | [INFO] [stdout] 309 | cg_name: std::ffi::CString::new(cg_name)?.as_ptr(), [INFO] [stdout] | -------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:310:59 [INFO] [stdout] | [INFO] [stdout] 310 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcuyVJ87/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-ec9a0847397858ae,liblibc-9017ff0c40a5fc6a,liblog-d269868761ac548a}.rlib" "/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" "/opt/rustwide/target/debug/deps/rustcuyVJ87/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_work-fe960eb3d08d5972" "-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] [stderr] warning: build failed, waiting for other jobs to finish... [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: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:124:59 [INFO] [stdout] | [INFO] [stdout] 124 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(dangling_pointers_from_temporaries)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:125:59 [INFO] [stdout] | [INFO] [stdout] 125 | base_path: std::ffi::CString::new(base_path)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:228:59 [INFO] [stdout] | [INFO] [stdout] 228 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:229:59 [INFO] [stdout] | [INFO] [stdout] 229 | path_name: std::ffi::CString::new(path_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:309:55 [INFO] [stdout] | [INFO] [stdout] 309 | cg_name: std::ffi::CString::new(cg_name)?.as_ptr(), [INFO] [stdout] | -------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this creates a dangling pointer because temporary `CString` is dropped at end of statement [INFO] [stdout] --> src/iterators.rs:310:59 [INFO] [stdout] | [INFO] [stdout] 310 | ctrl_name: std::ffi::CString::new(ctrl_name)?.as_ptr(), [INFO] [stdout] | ---------------------------------- ^^^^^^ pointer created here [INFO] [stdout] | | [INFO] [stdout] | this `CString` is dropped at end of statement [INFO] [stdout] | [INFO] [stdout] = help: bind the `CString` to a variable such that it outlives the pointer returned by `as_ptr` [INFO] [stdout] = note: a dangling pointer is safe, but dereferencing one is undefined behavior [INFO] [stdout] = note: returning a pointer to a local variable will always result in a dangling pointer [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcOrGHYA/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-ec9a0847397858ae,liblibc-9017ff0c40a5fc6a,liblog-d269868761ac548a}.rlib" "/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" "/opt/rustwide/target/debug/deps/rustcOrGHYA/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_task-1bd2b34073ab11e6" "-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" "/opt/rustwide/target/debug/deps/rustcRUmyUB/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bdynamic" "-lcgroup" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblibc-9017ff0c40a5fc6a.rlib" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/liblog-d269868761ac548a.rlib" "/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" "/opt/rustwide/target/debug/deps/rustcRUmyUB/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/libcgroup_rs-b3061f0c1037ae2d" "-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] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcmxuxB8/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{liblibcgroup_rs-ec9a0847397858ae,liblibc-9017ff0c40a5fc6a,liblog-d269868761ac548a}.rlib" "/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" "/opt/rustwide/target/debug/deps/rustcmxuxB8/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_iter-ceb8a00d33496820" "-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] [stderr] error: could not compile `libcgroup_rs` (lib test) due to 1 previous error; 8 warnings emitted [INFO] running `Command { std: "docker" "inspect" "152cc672d6795e4bad8852dca37dcc441efc533aaf7f4d2843d17ef524b7e43e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "152cc672d6795e4bad8852dca37dcc441efc533aaf7f4d2843d17ef524b7e43e", kill_on_drop: false }` [INFO] [stdout] 152cc672d6795e4bad8852dca37dcc441efc533aaf7f4d2843d17ef524b7e43e