[INFO] fetching crate bottle 0.1.0...
[INFO] checking bottle-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate bottle 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bottle 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bottle 0.1.0
[INFO] finished tweaking crates.io crate bottle 0.1.0
[INFO] tweaked toml for crates.io crate bottle 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b7ffbe8332acd5285b9759df6006016cce6b78d51633f6973e7078df73879b23
[INFO] running `"docker" "start" "-a" "b7ffbe8332acd5285b9759df6006016cce6b78d51633f6973e7078df73879b23"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking bottle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/thread/mod.rs:127:4
[INFO] [stderr]     |
[INFO] [stderr] 127 |             ///println!("waiting for query.");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 128 |             let mut query = self.input.recv().unwrap();
[INFO] [stderr]     |             ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/thread/mod.rs:127:4
[INFO] [stderr]     |
[INFO] [stderr] 127 |             ///println!("waiting for query.");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 128 |             let mut query = self.input.recv().unwrap();
[INFO] [stderr]     |             ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `handle_alloc_error`
[INFO] [stderr]  --> src/remote/mod.rs:7:41
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::alloc::{Global, Alloc, Layout, handle_alloc_error};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Handler`, `Signal`
[INFO] [stderr]  --> src/thread/mod.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::{Signal, Handler, Remote, Future};
[INFO] [stderr]   |             ^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:14:49
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) static mut USER_DATA: Option<Vec<Box<Any>>> = None;
[INFO] [stderr]    |                                                 ^^^ help: use `dyn`: `dyn Any`
[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/thread/mod.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     mx: crossbeam_channel::Sender<Box<Query>>,
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     input: crossbeam_channel::Receiver<Box<Query>>,
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn process_query(&self, mut query: Box<Query>) {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread/mod.rs:153:62
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn find_user_data<F, T>(f: F) -> Option<T> where F: Fn(&Any) -> Option<T> {
[INFO] [stderr]     |                                                                 ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scheduler.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::UnsafeCell`
[INFO] [stderr]  --> src/scheduler.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cell::UnsafeCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emit.rs:22:23
[INFO] [stderr]    |
[INFO] [stderr] 22 |     actor: WeakRemote<Handler<S>>
[INFO] [stderr]    |                       ^^^^^^^^^^ help: use `dyn`: `dyn Handler<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emit.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     actor: WeakRemote<MutHandler<S>>
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn MutHandler<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/remote/actor.rs:15:28
[INFO] [stderr]    |
[INFO] [stderr] 15 |             data: unsafe { std::mem::uninitialized() }
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `handle_alloc_error`
[INFO] [stderr]  --> src/remote/mod.rs:7:41
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::alloc::{Global, Alloc, Layout, handle_alloc_error};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Handler`, `Signal`
[INFO] [stderr]  --> src/thread/mod.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::{Signal, Handler, Remote, Future};
[INFO] [stderr]   |             ^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:14:49
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) static mut USER_DATA: Option<Vec<Box<Any>>> = None;
[INFO] [stderr]    |                                                 ^^^ help: use `dyn`: `dyn Any`
[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/thread/mod.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     mx: crossbeam_channel::Sender<Box<Query>>,
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     input: crossbeam_channel::Receiver<Box<Query>>,
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread/mod.rs:75:41
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn process_query(&self, mut query: Box<Query>) {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Query`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread/mod.rs:153:62
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn find_user_data<F, T>(f: F) -> Option<T> where F: Fn(&Any) -> Option<T> {
[INFO] [stderr]     |                                                                 ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scheduler.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::UnsafeCell`
[INFO] [stderr]  --> src/scheduler.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cell::UnsafeCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emit.rs:22:23
[INFO] [stderr]    |
[INFO] [stderr] 22 |     actor: WeakRemote<Handler<S>>
[INFO] [stderr]    |                       ^^^^^^^^^^ help: use `dyn`: `dyn Handler<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/emit.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     actor: WeakRemote<MutHandler<S>>
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn MutHandler<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/remote/actor.rs:15:28
[INFO] [stderr]    |
[INFO] [stderr] 15 |             data: unsafe { std::mem::uninitialized() }
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut inner : Box<Inner<T>> = Box::new(Inner {
[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/remote/mod.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut inner : Box<Inner<T>> = Box::new(Inner {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 |                 let mut inner : Box<Inner<T>> = Box::new(Inner {
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |         let mut actor = unsafe { &mut *self.inner().actor.get() };
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread/mod.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |         if let Ok(mut query) = self.input.try_recv() {
[INFO] [stderr]    |                   ----^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/thread/mod.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |             let mut query = self.input.recv().unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut inner : Box<Inner<T>> = Box::new(Inner {
[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/remote/mod.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut inner : Box<Inner<T>> = Box::new(Inner {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 |                 let mut inner : Box<Inner<T>> = Box::new(Inner {
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/remote/mod.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |         let mut actor = unsafe { &mut *self.inner().actor.get() };
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |             unsafe {
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:558:17
[INFO] [stderr]     |
[INFO] [stderr] 558 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:592:13
[INFO] [stderr]     |
[INFO] [stderr] 592 |             unsafe {
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:676:17
[INFO] [stderr]     |
[INFO] [stderr] 676 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/remote/actor.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |             data: unsafe { std::mem::uninitialized() }
[INFO] [stderr]    |                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ActorReadGuard`
[INFO] [stderr]   --> src/remote/actor.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct ActorReadGuard<'a, T: 'a + ?Sized> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/remote/actor.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn read<'a>(&self) -> LockResult<ActorReadGuard<T>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `grab`
[INFO] [stderr]   --> src/thread/mod.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub(crate) fn grab(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `release`
[INFO] [stderr]   --> src/thread/mod.rs:71:2
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub(crate) fn release(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:124
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(thread_local, coerce_unsized, unsize, box_into_raw_non_null, dispatch_from_dyn, allocator_api, dropck_eyepatch, bind_by_move_pattern_guards)]
[INFO] [stderr]   |                                                                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread/mod.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |         if let Ok(mut query) = self.input.try_recv() {
[INFO] [stderr]    |                   ----^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/thread/mod.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |             let mut query = self.input.recv().unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |             unsafe {
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:558:17
[INFO] [stderr]     |
[INFO] [stderr] 558 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:592:13
[INFO] [stderr]     |
[INFO] [stderr] 592 |             unsafe {
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/remote/mod.rs:676:17
[INFO] [stderr]     |
[INFO] [stderr] 676 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/remote/actor.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |             data: unsafe { std::mem::uninitialized() }
[INFO] [stderr]    |                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ActorReadGuard`
[INFO] [stderr]   --> src/remote/actor.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct ActorReadGuard<'a, T: 'a + ?Sized> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/remote/actor.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn read<'a>(&self) -> LockResult<ActorReadGuard<T>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `grab`
[INFO] [stderr]   --> src/thread/mod.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub(crate) fn grab(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `release`
[INFO] [stderr]   --> src/thread/mod.rs:71:2
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub(crate) fn release(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:124
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(thread_local, coerce_unsized, unsize, box_into_raw_non_null, dispatch_from_dyn, allocator_api, dropck_eyepatch, bind_by_move_pattern_guards)]
[INFO] [stderr]   |                                                                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `signals`
[INFO] [stderr]  --> examples/test.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate signals;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `bottle`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b7ffbe8332acd5285b9759df6006016cce6b78d51633f6973e7078df73879b23"`
[INFO] running `"docker" "rm" "-f" "b7ffbe8332acd5285b9759df6006016cce6b78d51633f6973e7078df73879b23"`
[INFO] [stdout] b7ffbe8332acd5285b9759df6006016cce6b78d51633f6973e7078df73879b23