[INFO] fetching crate rsperftools 0.3.3...
[INFO] building rsperftools-0.3.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rsperftools 0.3.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rsperftools 0.3.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rsperftools 0.3.3
[INFO] tweaked toml for crates.io crate rsperftools 0.3.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsperftools 0.3.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rsperftools 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08c78c61b0f3fedcfef46acf880a476a2f422676e9a4f56638f8039a86ffdea7
[INFO] running `Command { std: "docker" "start" "-a" "08c78c61b0f3fedcfef46acf880a476a2f422676e9a4f56638f8039a86ffdea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c78c61b0f3fedcfef46acf880a476a2f422676e9a4f56638f8039a86ffdea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c78c61b0f3fedcfef46acf880a476a2f422676e9a4f56638f8039a86ffdea7", kill_on_drop: false }`
[INFO] [stdout] 08c78c61b0f3fedcfef46acf880a476a2f422676e9a4f56638f8039a86ffdea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19245565fff9706bd79358a6493eaadb2f2c007b82cdd1ddcc06b698287105b
[INFO] running `Command { std: "docker" "start" "-a" "e19245565fff9706bd79358a6493eaadb2f2c007b82cdd1ddcc06b698287105b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rsperftools v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/error.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 |             description(err.description())
[INFO] [stdout]   |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `addr`, `lineno`, and `filename` are never read
[INFO] [stdout]    --> src/frames.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout]  99 | pub struct Symbol {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 100 |     name: Option<Vec<u8>>,
[INFO] [stdout] 101 |     addr: Option<*mut c_void>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 102 |     lineno: Option<u32>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 103 |     filename: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are 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: the type `[collector::Entry<T>; 4]` does not permit being left uninitialized
[INFO] [stdout]   --> src/collector.rs:26:31
[INFO] [stdout]    |
[INFO] [stdout] 26 |             entries: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/collector.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collector.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Bucket<T>; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/collector.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |             buckets: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/collector.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout]  18 |     pub length: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frames.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice<'_> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/profiler.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:64:47
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut bt: [Frame; MAX_DEPTH] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[i8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `Command { std: "docker" "inspect" "e19245565fff9706bd79358a6493eaadb2f2c007b82cdd1ddcc06b698287105b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19245565fff9706bd79358a6493eaadb2f2c007b82cdd1ddcc06b698287105b", kill_on_drop: false }`
[INFO] [stdout] e19245565fff9706bd79358a6493eaadb2f2c007b82cdd1ddcc06b698287105b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 664d4781de13aeb3ae95a32684d0df55cfc4d6d08636ee296441c9937592577c
[INFO] running `Command { std: "docker" "start" "-a" "664d4781de13aeb3ae95a32684d0df55cfc4d6d08636ee296441c9937592577c", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsperftools v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/error.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 |             description(err.description())
[INFO] [stdout]   |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `addr`, `lineno`, and `filename` are never read
[INFO] [stdout]    --> src/frames.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout]  99 | pub struct Symbol {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 100 |     name: Option<Vec<u8>>,
[INFO] [stdout] 101 |     addr: Option<*mut c_void>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 102 |     lineno: Option<u32>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 103 |     filename: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are 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: the type `[collector::Entry<T>; 4]` does not permit being left uninitialized
[INFO] [stdout]   --> src/collector.rs:26:31
[INFO] [stdout]    |
[INFO] [stdout] 26 |             entries: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/collector.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collector.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Bucket<T>; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/collector.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |             buckets: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/collector.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout]  18 |     pub length: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frames.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice<'_> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/profiler.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:64:47
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut bt: [Frame; MAX_DEPTH] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[i8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / quick_error! {
[INFO] [stdout]  2 | |     #[derive(Debug)]
[INFO] [stdout]  3 | |     pub enum Error {
[INFO] [stdout]  4 | |         NixError(err: nix::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/error.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 |             description(err.description())
[INFO] [stdout]   |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `addr`, `lineno`, and `filename` are never read
[INFO] [stdout]    --> src/frames.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout]  99 | pub struct Symbol {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 100 |     name: Option<Vec<u8>>,
[INFO] [stdout] 101 |     addr: Option<*mut c_void>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 102 |     lineno: Option<u32>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 103 |     filename: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are 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: the type `[collector::Entry<T>; 4]` does not permit being left uninitialized
[INFO] [stdout]   --> src/collector.rs:26:31
[INFO] [stdout]    |
[INFO] [stdout] 26 |             entries: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/collector.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collector.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn iter(&self) -> BucketIterator<'_, T> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Bucket<T>; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/collector.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |             buckets: unsafe { std::mem::MaybeUninit::uninit().assume_init() },
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]    --> src/collector.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout]  18 |     pub length: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/frames.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |             unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/frames.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice {
[INFO] [stdout]    |              ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn slice(&self) -> UnresolvedFramesSlice<'_> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/profiler.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn report(&self) -> ReportBuilder<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Frame; 32]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:64:47
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut bt: [Frame; MAX_DEPTH] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: enums with multiple inhabited variants have to be initialized to a variant
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/backtrace-0.3.40/src/backtrace/libunwind.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Frame {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[i8; 16]` does not permit being left uninitialized
[INFO] [stdout]   --> src/profiler.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[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: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "664d4781de13aeb3ae95a32684d0df55cfc4d6d08636ee296441c9937592577c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664d4781de13aeb3ae95a32684d0df55cfc4d6d08636ee296441c9937592577c", kill_on_drop: false }`
[INFO] [stdout] 664d4781de13aeb3ae95a32684d0df55cfc4d6d08636ee296441c9937592577c
