[INFO] crate mioco 0.8.1 is already in cache [INFO] extracting crate mioco 0.8.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/mioco/0.8.1 [INFO] extracting crate mioco 0.8.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mioco/0.8.1 [INFO] validating manifest of mioco-0.8.1 on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mioco-0.8.1 on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mioco-0.8.1 [INFO] finished frobbing mioco-0.8.1 [INFO] frobbed toml for mioco-0.8.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mioco/0.8.1/Cargo.toml [INFO] started frobbing mioco-0.8.1 [INFO] finished frobbing mioco-0.8.1 [INFO] frobbed toml for mioco-0.8.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mioco/0.8.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing mioco-0.8.1 against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mioco/0.8.1:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 6b02e9a6f540b2c6e624e230ce15f286e380c2f8930b34761b538a36cd49e807 [INFO] running `"docker" "start" "-a" "6b02e9a6f540b2c6e624e230ce15f286e380c2f8930b34761b538a36cd49e807"` [INFO] [stderr] Compiling thread-scoped v1.0.2 [INFO] [stderr] Compiling slab v0.2.0 [INFO] [stderr] Compiling context v1.0.1 [INFO] [stderr] Compiling miow v0.1.5 [INFO] [stderr] Compiling mio v0.5.1 [INFO] [stderr] Compiling mioco v0.8.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/thread.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | / /// Current coroutine thread-local reference [INFO] [stderr] 20 | | /// [INFO] [stderr] 21 | | /// This reference is used to store a reference to a currently executing [INFO] [stderr] 22 | | /// mioco coroutine. [INFO] [stderr] 23 | | /// [INFO] [stderr] 24 | | /// Should not be used directly, use `tl_current_coroutine()` instead. [INFO] [stderr] | |______________________________________________________________________^ [INFO] [stderr] 25 | thread_local!(static TL_CURRENT_COROUTINE: RefCell<*mut Coroutine> = RefCell::new(ptr::null_mut())); [INFO] [stderr] | ---------------------------------------------------------------------------------------------------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/evented.rs:459:35 [INFO] [stderr] | [INFO] [stderr] 459 | pub fn to_trait(&self) -> Box { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RcEventSourceTrait + 'static` [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/coroutine.rs:141:32 [INFO] [stderr] | [INFO] [stderr] 141 | pub type UserDataAny = Arc>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/coroutine.rs:166:29 [INFO] [stderr] | [INFO] [stderr] 166 | pub blocked_on: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RcEventSourceTrait + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/thread.rs:215:20 [INFO] [stderr] | [INFO] [stderr] 215 | scheduler: Box, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SchedulerThread + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/thread.rs:223:56 [INFO] [stderr] | [INFO] [stderr] 223 | pub fn new(shared: RcHandlerShared, scheduler: Box) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SchedulerThread` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/thread.rs:294:24 [INFO] [stderr] | [INFO] [stderr] 294 | PropagatePanic(Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/thunk.rs:12:17 [INFO] [stderr] | [INFO] [stderr] 12 | invoke: Box + Send + 'a>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Invoke + Send + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:262:35 [INFO] [stderr] | [INFO] [stderr] 262 | fn spawn_thread(&self) -> Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SchedulerThread + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:345:35 [INFO] [stderr] | [INFO] [stderr] 345 | fn spawn_thread(&self) -> Box { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SchedulerThread` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:532:40 [INFO] [stderr] | [INFO] [stderr] 532 | if (&***arcref.owner() as &Any).downcast_ref::().is_some() { [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:533:49 [INFO] [stderr] | [INFO] [stderr] 533 | Some(arcref.map(|ud| (&**ud as &Any).downcast_ref::().unwrap()) [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:648:41 [INFO] [stderr] | [INFO] [stderr] 648 | scheduler: Box, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SchedulerThread + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:696:24 [INFO] [stderr] | [INFO] [stderr] 696 | scheduler: Arc>, [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Scheduler` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:735:52 [INFO] [stderr] | [INFO] [stderr] 735 | pub fn set_scheduler(&mut self, scheduler: Box) -> &mut Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scheduler + 'static` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:971:36 [INFO] [stderr] | [INFO] [stderr] 971 | if (&***arcref.owner() as &Any).downcast_ref::().is_some() { [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mod.rs:972:45 [INFO] [stderr] | [INFO] [stderr] 972 | Some(arcref.map(|ud| (&**ud as &Any).downcast_ref::().unwrap()) [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Any` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/coroutine.rs:376:17 [INFO] [stderr] | [INFO] [stderr] 376 | let mut common = &mut event_source.common_mut(); [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] error[E0446]: private type `src::sync::mpsc::ReceiverCore` in public interface [INFO] [stderr] --> src/sync/mpsc.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 26 | struct ReceiverCore { [INFO] [stderr] | - `src::sync::mpsc::ReceiverCore` declared as private [INFO] [stderr] ... [INFO] [stderr] 35 | type Raw = ReceiverCore; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `src::timer::TimerCore` in public interface [INFO] [stderr] --> src/timer.rs:47:5 [INFO] [stderr] | [INFO] [stderr] 18 | struct TimerCore { [INFO] [stderr] | - `src::timer::TimerCore` declared as private [INFO] [stderr] ... [INFO] [stderr] 47 | type Raw = TimerCore; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0446`. [INFO] [stderr] error: Could not compile `mioco`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6b02e9a6f540b2c6e624e230ce15f286e380c2f8930b34761b538a36cd49e807"` [INFO] running `"docker" "rm" "-f" "6b02e9a6f540b2c6e624e230ce15f286e380c2f8930b34761b538a36cd49e807"` [INFO] [stdout] 6b02e9a6f540b2c6e624e230ce15f286e380c2f8930b34761b538a36cd49e807