[INFO] crate bottle 0.1.0 is already in cache [INFO] extracting crate bottle 0.1.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/bottle/0.1.0 [INFO] extracting crate bottle 0.1.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/bottle/0.1.0 [INFO] validating manifest of bottle-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 bottle-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 bottle-0.1.0 [INFO] finished frobbing bottle-0.1.0 [INFO] frobbed toml for bottle-0.1.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/bottle/0.1.0/Cargo.toml [INFO] started frobbing bottle-0.1.0 [INFO] finished frobbing bottle-0.1.0 [INFO] frobbed toml for bottle-0.1.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/bottle/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 bottle-0.1.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/bottle/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] bd5a7b570d69d71a37dfeb6f86cc96085e3848c5e5b994020e3b9bf3697ba025 [INFO] running `"docker" "start" "-a" "bd5a7b570d69d71a37dfeb6f86cc96085e3848c5e5b994020e3b9bf3697ba025"` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] Checking bottle v0.1.0 (/opt/crater/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>> = 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>, [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>, [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) { [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: F) -> Option where F: Fn(&Any) -> Option { [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> [INFO] [stderr] | ^^^^^^^^^^ help: use `dyn`: `dyn Handler` [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> [INFO] [stderr] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn MutHandler` [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>> = 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>, [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>, [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) { [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: F) -> Option where F: Fn(&Any) -> Option { [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> [INFO] [stderr] | ^^^^^^^^^^ help: use `dyn`: `dyn Handler` [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> [INFO] [stderr] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn MutHandler` [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> = 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> = 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> = 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/remote/mod.rs:123:13 [INFO] [stderr] | [INFO] [stderr] 123 | let mut inner : Box> = 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> = 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> = 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/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/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: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/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> { [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: 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> { [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] 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" "bd5a7b570d69d71a37dfeb6f86cc96085e3848c5e5b994020e3b9bf3697ba025"` [INFO] running `"docker" "rm" "-f" "bd5a7b570d69d71a37dfeb6f86cc96085e3848c5e5b994020e3b9bf3697ba025"` [INFO] [stdout] bd5a7b570d69d71a37dfeb6f86cc96085e3848c5e5b994020e3b9bf3697ba025