[INFO] fetching crate cgroups 0.1.0...
[INFO] checking cgroups-0.1.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate cgroups 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cgroups 0.1.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate cgroups 0.1.0
[INFO] finished tweaking crates.io crate cgroups 0.1.0
[INFO] tweaked toml for crates.io crate cgroups 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c649b6dedb4411f901b1ab6b98bd6a1f0a187f882b57fd3807a99c866f09c5df
[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" "c649b6dedb4411f901b1ab6b98bd6a1f0a187f882b57fd3807a99c866f09c5df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c649b6dedb4411f901b1ab6b98bd6a1f0a187f882b57fd3807a99c866f09c5df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c649b6dedb4411f901b1ab6b98bd6a1f0a187f882b57fd3807a99c866f09c5df", kill_on_drop: false }`
[INFO] [stdout] c649b6dedb4411f901b1ab6b98bd6a1f0a187f882b57fd3807a99c866f09c5df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f73956aa4e41a129c4e91177c63f9de7a6dff77196e0e8082ab1cbd4979f0d95
[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" "f73956aa4e41a129c4e91177c63f9de7a6dff77196e0e8082ab1cbd4979f0d95", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking cgroups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     hier: &'b Hierarchy,
[INFO] [stdout]    |               ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:44:39
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new<P: AsRef<Path>>(hier: &Hierarchy, path: P) -> Cgroup {
[INFO] [stdout]    |                                       ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:57:40
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn load<P: AsRef<Path>>(hier: &Hierarchy, path: P) -> Cgroup {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cause: Option<Box<StdError + Send>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:56:32
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::*`
[INFO] [stdout]   --> src/cgroup_builder.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | use error::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup_builder.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     hierarchy: &'a Hierarchy,
[INFO] [stdout]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup_builder.rs:83:46
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new(name: &'a str, hierarchy: &'a Hierarchy) -> CgroupBuilder<'a> {
[INFO] [stdout]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/blkio.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cpu.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cpuacct.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/cpuset.rs:122:21
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/devices.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/freezer.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/hugetlb.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory.rs:675:21
[INFO] [stdout]     |
[INFO] [stdout] 675 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/net_cls.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/net_prio.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/perf_event.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/pid.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rdma.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/memory.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let nodes = (s.split_whitespace().collect::<Vec<_>>().len() - 8) / 8;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hierarchies.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut more_fields = line[index + 3..].split_whitespace().collect::<Vec<_>>();
[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: the type `&BlkIoController` does not permit being left uninitialized
[INFO] [stdout]    --> src/blkio.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuController` does not permit being left uninitialized
[INFO] [stdout]   --> src/cpu.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuAcctController` does not permit being left uninitialized
[INFO] [stdout]   --> src/cpuacct.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuSetController` does not permit being left uninitialized
[INFO] [stdout]    --> src/cpuset.rs:122:21
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&DevicesController` does not permit being left uninitialized
[INFO] [stdout]    --> src/devices.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&FreezerController` does not permit being left uninitialized
[INFO] [stdout]   --> src/freezer.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&HugeTlbController` does not permit being left uninitialized
[INFO] [stdout]   --> src/hugetlb.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&MemController` does not permit being left uninitialized
[INFO] [stdout]    --> src/memory.rs:675:21
[INFO] [stdout]     |
[INFO] [stdout] 675 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&NetClsController` does not permit being left uninitialized
[INFO] [stdout]   --> src/net_cls.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&NetPrioController` does not permit being left uninitialized
[INFO] [stdout]   --> src/net_prio.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&PerfEventController` does not permit being left uninitialized
[INFO] [stdout]   --> src/perf_event.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&PidController` does not permit being left uninitialized
[INFO] [stdout]   --> src/pid.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&RdmaController` does not permit being left uninitialized
[INFO] [stdout]   --> src/rdma.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cgroup_builder.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         cg.apply(&self.resources);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CgroupPid`, `PidResources`, `Resources`
[INFO] [stdout]  --> tests/pids.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use cgroups::{Cgroup, CgroupPid, PidResources, Resources};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]  --> tests/pids.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nix::unistd::{fork, ForkResult, Pid};
[INFO] [stdout]   |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> tests/pids.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/cgroup.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         cg.add_task(CgroupPid::from(pid));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/resources.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         cg.apply(&res);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/pids.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         pidcontroller.set_pid_max(PidMax::Value(1337));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/pids.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 pids.add_task(&(pid_t::from(child) as u64).into());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/pids.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 pids.set_pid_max(PidMax::Value(1));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     hier: &'b Hierarchy,
[INFO] [stdout]    |               ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:44:39
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new<P: AsRef<Path>>(hier: &Hierarchy, path: P) -> Cgroup {
[INFO] [stdout]    |                                       ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup.rs:57:40
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn load<P: AsRef<Path>>(hier: &Hierarchy, path: P) -> Cgroup {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     cause: Option<Box<StdError + Send>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:56:32
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::*`
[INFO] [stdout]   --> src/cgroup_builder.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | use error::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup_builder.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     hierarchy: &'a Hierarchy,
[INFO] [stdout]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cgroup_builder.rs:83:46
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new(name: &'a str, hierarchy: &'a Hierarchy) -> CgroupBuilder<'a> {
[INFO] [stdout]    |                                              ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/devices.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | /         devices.deny_device(
[INFO] [stdout] 16 | |             DeviceType::All,
[INFO] [stdout] 17 | |             -1,
[INFO] [stdout] 18 | |             -1,
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |             ],
[INFO] [stdout] 24 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/devices.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         devices.allow_device(DeviceType::Char, 1, 3, &vec![DevicePermissions::MkNod]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/devices.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         devices.deny_device(DeviceType::Char, 1, 3, &DevicePermissions::all());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/blkio.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cpu.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cpuacct.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/cpuset.rs:122:21
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/devices.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/freezer.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/hugetlb.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory.rs:675:21
[INFO] [stdout]     |
[INFO] [stdout] 675 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/net_cls.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/net_prio.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/perf_event.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/pid.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/rdma.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/memory.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let nodes = (s.split_whitespace().collect::<Vec<_>>().len() - 8) / 8;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hierarchies.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut more_fields = line[index + 3..].split_whitespace().collect::<Vec<_>>();
[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: the type `&BlkIoController` does not permit being left uninitialized
[INFO] [stdout]    --> src/blkio.rs:319:21
[INFO] [stdout]     |
[INFO] [stdout] 319 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuController` does not permit being left uninitialized
[INFO] [stdout]   --> src/cpu.rs:95:21
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuAcctController` does not permit being left uninitialized
[INFO] [stdout]   --> src/cpuacct.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&CpuSetController` does not permit being left uninitialized
[INFO] [stdout]    --> src/cpuset.rs:122:21
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&DevicesController` does not permit being left uninitialized
[INFO] [stdout]    --> src/devices.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&FreezerController` does not permit being left uninitialized
[INFO] [stdout]   --> src/freezer.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&HugeTlbController` does not permit being left uninitialized
[INFO] [stdout]   --> src/hugetlb.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&MemController` does not permit being left uninitialized
[INFO] [stdout]    --> src/memory.rs:675:21
[INFO] [stdout]     |
[INFO] [stdout] 675 |                     ::std::mem::uninitialized()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&NetClsController` does not permit being left uninitialized
[INFO] [stdout]   --> src/net_cls.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&NetPrioController` does not permit being left uninitialized
[INFO] [stdout]   --> src/net_prio.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&PerfEventController` does not permit being left uninitialized
[INFO] [stdout]   --> src/perf_event.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&PidController` does not permit being left uninitialized
[INFO] [stdout]   --> src/pid.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&RdmaController` does not permit being left uninitialized
[INFO] [stdout]   --> src/rdma.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     ::std::mem::uninitialized()
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this code causes undefined behavior when executed
[INFO] [stdout]    |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cgroup_builder.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         cg.apply(&self.resources);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "f73956aa4e41a129c4e91177c63f9de7a6dff77196e0e8082ab1cbd4979f0d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73956aa4e41a129c4e91177c63f9de7a6dff77196e0e8082ab1cbd4979f0d95", kill_on_drop: false }`
[INFO] [stdout] f73956aa4e41a129c4e91177c63f9de7a6dff77196e0e8082ab1cbd4979f0d95