[INFO] crate cgroups 0.1.0 is already in cache [INFO] extracting crate cgroups 0.1.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/cgroups/0.1.0 [INFO] extracting crate cgroups 0.1.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/cgroups/0.1.0 [INFO] validating manifest of cgroups-0.1.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of cgroups-0.1.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing cgroups-0.1.0 [INFO] finished frobbing cgroups-0.1.0 [INFO] frobbed toml for cgroups-0.1.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/cgroups/0.1.0/Cargo.toml [INFO] started frobbing cgroups-0.1.0 [INFO] finished frobbing cgroups-0.1.0 [INFO] frobbed toml for cgroups-0.1.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/cgroups/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking cgroups-0.1.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/cgroups/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 362d7763bf32d293ac5ff9114755f87c477c48c9cae74e08ce006aca408718e6 [INFO] running `"docker" "start" "-a" "362d7763bf32d293ac5ff9114755f87c477c48c9cae74e08ce006aca408718e6"` [INFO] [stderr] Checking cgroups v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | hier: &'b Hierarchy, [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:44:39 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn new>(hier: &Hierarchy, path: P) -> Cgroup { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:57:40 [INFO] [stderr] | [INFO] [stderr] 57 | pub fn load>(hier: &Hierarchy, path: P) -> Cgroup { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error.rs:37:23 [INFO] [stderr] | [INFO] [stderr] 37 | cause: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn cause(&self) -> Option<&StdError> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn StdError` [INFO] [stderr] [INFO] [stderr] warning: unused import: `error::*` [INFO] [stderr] --> src/cgroup_builder.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | use error::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup_builder.rs:74:20 [INFO] [stderr] | [INFO] [stderr] 74 | hierarchy: &'a Hierarchy, [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup_builder.rs:83:46 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn new(name: &'a str, hierarchy: &'a Hierarchy) -> CgroupBuilder<'a> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:27:15 [INFO] [stderr] | [INFO] [stderr] 27 | hier: &'b Hierarchy, [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:44:39 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn new>(hier: &Hierarchy, path: P) -> Cgroup { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup.rs:57:40 [INFO] [stderr] | [INFO] [stderr] 57 | pub fn load>(hier: &Hierarchy, path: P) -> Cgroup { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error.rs:37:23 [INFO] [stderr] | [INFO] [stderr] 37 | cause: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn cause(&self) -> Option<&StdError> { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn StdError` [INFO] [stderr] [INFO] [stderr] warning: unused import: `error::*` [INFO] [stderr] --> src/cgroup_builder.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | use error::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup_builder.rs:74:20 [INFO] [stderr] | [INFO] [stderr] 74 | hierarchy: &'a Hierarchy, [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/cgroup_builder.rs:83:46 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn new(name: &'a str, hierarchy: &'a Hierarchy) -> CgroupBuilder<'a> { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Hierarchy` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nodes` [INFO] [stderr] --> src/memory.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | let nodes = (s.split_whitespace().collect::>().len() - 8) / 8; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_nodes` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nodes` [INFO] [stderr] --> src/memory.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | let nodes = (s.split_whitespace().collect::>().len() - 8) / 8; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_nodes` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/hierarchies.rs:126:13 [INFO] [stderr] | [INFO] [stderr] 126 | let mut more_fields = line[index + 3..].split_whitespace().collect::>(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/hierarchies.rs:126:13 [INFO] [stderr] | [INFO] [stderr] 126 | let mut more_fields = line[index + 3..].split_whitespace().collect::>(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the type `&'a blkio::BlkIoController` does not permit being left uninitialized [INFO] [stderr] --> src/blkio.rs:319:21 [INFO] [stderr] | [INFO] [stderr] 319 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(invalid_value)]` on by default [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpu::CpuController` does not permit being left uninitialized [INFO] [stderr] --> src/cpu.rs:95:21 [INFO] [stderr] | [INFO] [stderr] 95 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpuacct::CpuAcctController` does not permit being left uninitialized [INFO] [stderr] --> src/cpuacct.rs:87:21 [INFO] [stderr] | [INFO] [stderr] 87 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpuset::CpuSetController` does not permit being left uninitialized [INFO] [stderr] --> src/cpuset.rs:122:21 [INFO] [stderr] | [INFO] [stderr] 122 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a devices::DevicesController` does not permit being left uninitialized [INFO] [stderr] --> src/devices.rs:179:21 [INFO] [stderr] | [INFO] [stderr] 179 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a freezer::FreezerController` does not permit being left uninitialized [INFO] [stderr] --> src/freezer.rs:69:21 [INFO] [stderr] | [INFO] [stderr] 69 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a hugetlb::HugeTlbController` does not permit being left uninitialized [INFO] [stderr] --> src/hugetlb.rs:70:21 [INFO] [stderr] | [INFO] [stderr] 70 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a memory::MemController` does not permit being left uninitialized [INFO] [stderr] --> src/memory.rs:675:21 [INFO] [stderr] | [INFO] [stderr] 675 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a net_cls::NetClsController` does not permit being left uninitialized [INFO] [stderr] --> src/net_cls.rs:69:21 [INFO] [stderr] | [INFO] [stderr] 69 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a net_prio::NetPrioController` does not permit being left uninitialized [INFO] [stderr] --> src/net_prio.rs:70:21 [INFO] [stderr] | [INFO] [stderr] 70 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a perf_event::PerfEventController` does not permit being left uninitialized [INFO] [stderr] --> src/perf_event.rs:53:21 [INFO] [stderr] | [INFO] [stderr] 53 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a pid::PidController` does not permit being left uninitialized [INFO] [stderr] --> src/pid.rs:92:21 [INFO] [stderr] | [INFO] [stderr] 92 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a rdma::RdmaController` does not permit being left uninitialized [INFO] [stderr] --> src/rdma.rs:56:21 [INFO] [stderr] | [INFO] [stderr] 56 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cgroup_builder.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | cg.apply(&self.resources); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: the type `&'a blkio::BlkIoController` does not permit being left uninitialized [INFO] [stderr] --> src/blkio.rs:319:21 [INFO] [stderr] | [INFO] [stderr] 319 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(invalid_value)]` on by default [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpu::CpuController` does not permit being left uninitialized [INFO] [stderr] --> src/cpu.rs:95:21 [INFO] [stderr] | [INFO] [stderr] 95 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpuacct::CpuAcctController` does not permit being left uninitialized [INFO] [stderr] --> src/cpuacct.rs:87:21 [INFO] [stderr] | [INFO] [stderr] 87 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a cpuset::CpuSetController` does not permit being left uninitialized [INFO] [stderr] --> src/cpuset.rs:122:21 [INFO] [stderr] | [INFO] [stderr] 122 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a devices::DevicesController` does not permit being left uninitialized [INFO] [stderr] --> src/devices.rs:179:21 [INFO] [stderr] | [INFO] [stderr] 179 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a freezer::FreezerController` does not permit being left uninitialized [INFO] [stderr] --> src/freezer.rs:69:21 [INFO] [stderr] | [INFO] [stderr] 69 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a hugetlb::HugeTlbController` does not permit being left uninitialized [INFO] [stderr] --> src/hugetlb.rs:70:21 [INFO] [stderr] | [INFO] [stderr] 70 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a memory::MemController` does not permit being left uninitialized [INFO] [stderr] --> src/memory.rs:675:21 [INFO] [stderr] | [INFO] [stderr] 675 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a net_cls::NetClsController` does not permit being left uninitialized [INFO] [stderr] --> src/net_cls.rs:69:21 [INFO] [stderr] | [INFO] [stderr] 69 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a net_prio::NetPrioController` does not permit being left uninitialized [INFO] [stderr] --> src/net_prio.rs:70:21 [INFO] [stderr] | [INFO] [stderr] 70 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a perf_event::PerfEventController` does not permit being left uninitialized [INFO] [stderr] --> src/perf_event.rs:53:21 [INFO] [stderr] | [INFO] [stderr] 53 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a pid::PidController` does not permit being left uninitialized [INFO] [stderr] --> src/pid.rs:92:21 [INFO] [stderr] | [INFO] [stderr] 92 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: the type `&'a rdma::RdmaController` does not permit being left uninitialized [INFO] [stderr] --> src/rdma.rs:56:21 [INFO] [stderr] | [INFO] [stderr] 56 | ::std::mem::uninitialized() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead [INFO] [stderr] | [INFO] [stderr] = note: References must be non-null [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cgroup_builder.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | cg.apply(&self.resources); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused imports: `CgroupPid`, `PidResources`, `Resources` [INFO] [stderr] --> tests/pids.rs:5:23 [INFO] [stderr] | [INFO] [stderr] 5 | use cgroups::{Cgroup, CgroupPid, PidResources, Resources}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Pid` [INFO] [stderr] --> tests/pids.rs:9:37 [INFO] [stderr] | [INFO] [stderr] 9 | use nix::unistd::{fork, ForkResult, Pid}; [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> tests/pids.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/resources.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | cg.apply(&res); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/cgroup.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | cg.add_task(CgroupPid::from(pid)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/pids.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | pidcontroller.set_pid_max(PidMax::Value(1337)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/pids.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | pids.add_task(&(pid_t::from(child) as u64).into()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/pids.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | pids.set_pid_max(PidMax::Value(1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/devices.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | / devices.deny_device( [INFO] [stderr] 16 | | DeviceType::All, [INFO] [stderr] 17 | | -1, [INFO] [stderr] 18 | | -1, [INFO] [stderr] ... | [INFO] [stderr] 23 | | ], [INFO] [stderr] 24 | | ); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/devices.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | devices.allow_device(DeviceType::Char, 1, 3, &vec![DevicePermissions::MkNod]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> tests/devices.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | devices.deny_device(DeviceType::Char, 1, 3, &DevicePermissions::all()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.78s [INFO] running `"docker" "inspect" "362d7763bf32d293ac5ff9114755f87c477c48c9cae74e08ce006aca408718e6"` [INFO] running `"docker" "rm" "-f" "362d7763bf32d293ac5ff9114755f87c477c48c9cae74e08ce006aca408718e6"` [INFO] [stdout] 362d7763bf32d293ac5ff9114755f87c477c48c9cae74e08ce006aca408718e6