[INFO] fetching crate rwlock2 0.2.5... [INFO] testing rwlock2-0.2.5 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate rwlock2 0.2.5 into /workspace/builds/worker-107/source [INFO] validating manifest of crates.io crate rwlock2 0.2.5 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rwlock2 0.2.5 [INFO] finished tweaking crates.io crate rwlock2 0.2.5 [INFO] tweaked toml for crates.io crate rwlock2 0.2.5 written to /workspace/builds/worker-107/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 13a813694352642ec9ac1ae21516ce48e5cac0e83d917df952b625c38b6694b2 [INFO] running `Command { std: "docker" "start" "-a" "13a813694352642ec9ac1ae21516ce48e5cac0e83d917df952b625c38b6694b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "13a813694352642ec9ac1ae21516ce48e5cac0e83d917df952b625c38b6694b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13a813694352642ec9ac1ae21516ce48e5cac0e83d917df952b625c38b6694b2", kill_on_drop: false }` [INFO] [stdout] 13a813694352642ec9ac1ae21516ce48e5cac0e83d917df952b625c38b6694b2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2925d387282b4576c71ebc8ee668730b2814e25c6c5c6c5227c4a861c4fc14ed [INFO] running `Command { std: "docker" "start" "-a" "2925d387282b4576c71ebc8ee668730b2814e25c6c5c6c5227c4a861c4fc14ed", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling rwlock2 v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:160:16 [INFO] [stdout] | [INFO] [stdout] 160 | Ok(try!(RwLockReadGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:206:16 [INFO] [stdout] | [INFO] [stdout] 206 | Ok(try!(RwLockWriteGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/mutex.rs:215:20 [INFO] [stdout] | [INFO] [stdout] 215 | Ok(try!(MutexGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/poison.rs:158:32 [INFO] [stdout] | [INFO] [stdout] 158 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 158 - fn cause(&self) -> Option<&Error> { [INFO] [stdout] 158 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/condvar.rs:181:26 [INFO] [stdout] | [INFO] [stdout] 181 | match self.mutex.compare_and_swap(0, addr, Ordering::SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:146:14 [INFO] [stdout] | [INFO] [stdout] 146 | self.description().fmt(f) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:153:48 [INFO] [stdout] | [INFO] [stdout] 153 | TryLockError::Poisoned(ref p) => p.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.47s [INFO] running `Command { std: "docker" "inspect" "2925d387282b4576c71ebc8ee668730b2814e25c6c5c6c5227c4a861c4fc14ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2925d387282b4576c71ebc8ee668730b2814e25c6c5c6c5227c4a861c4fc14ed", kill_on_drop: false }` [INFO] [stdout] 2925d387282b4576c71ebc8ee668730b2814e25c6c5c6c5227c4a861c4fc14ed [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fcc6d2e50243b050b05b65b16b786c9e02e0f3af5e9535cca3fb2d6366632153 [INFO] running `Command { std: "docker" "start" "-a" "fcc6d2e50243b050b05b65b16b786c9e02e0f3af5e9535cca3fb2d6366632153", kill_on_drop: false }` [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:160:16 [INFO] [stdout] | [INFO] [stdout] 160 | Ok(try!(RwLockReadGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:206:16 [INFO] [stdout] | [INFO] [stdout] 206 | Ok(try!(RwLockWriteGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/mutex.rs:215:20 [INFO] [stdout] | [INFO] [stdout] 215 | Ok(try!(MutexGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/poison.rs:158:32 [INFO] [stdout] | [INFO] [stdout] 158 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 158 - fn cause(&self) -> Option<&Error> { [INFO] [stdout] 158 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/condvar.rs:181:26 [INFO] [stdout] | [INFO] [stdout] 181 | match self.mutex.compare_and_swap(0, addr, Ordering::SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:146:14 [INFO] [stdout] | [INFO] [stdout] 146 | self.description().fmt(f) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:153:48 [INFO] [stdout] | [INFO] [stdout] 153 | TryLockError::Poisoned(ref p) => p.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling rwlock2 v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:160:16 [INFO] [stdout] | [INFO] [stdout] 160 | Ok(try!(RwLockReadGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:1:24 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(test, deny(warnings))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/rwlock.rs:206:16 [INFO] [stdout] | [INFO] [stdout] 206 | Ok(try!(RwLockWriteGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/mutex.rs:215:20 [INFO] [stdout] | [INFO] [stdout] 215 | Ok(try!(MutexGuard::new(&*self.inner, &self.data))) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/poison.rs:158:32 [INFO] [stdout] | [INFO] [stdout] 158 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]` [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 158 - fn cause(&self) -> Option<&Error> { [INFO] [stdout] 158 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/condvar.rs:181:26 [INFO] [stdout] | [INFO] [stdout] 181 | match self.mutex.compare_and_swap(0, addr, Ordering::SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:146:14 [INFO] [stdout] | [INFO] [stdout] 146 | self.description().fmt(f) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/poison.rs:153:48 [INFO] [stdout] | [INFO] [stdout] 153 | TryLockError::Poisoned(ref p) => p.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.06s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rwlock2-5076cc6afa8b1033) [INFO] running `Command { std: "docker" "inspect" "fcc6d2e50243b050b05b65b16b786c9e02e0f3af5e9535cca3fb2d6366632153", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcc6d2e50243b050b05b65b16b786c9e02e0f3af5e9535cca3fb2d6366632153", kill_on_drop: false }` [INFO] [stdout] fcc6d2e50243b050b05b65b16b786c9e02e0f3af5e9535cca3fb2d6366632153 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3468a0904b2e0185d7293745507233230a4e76784d530d0ed4783d9d56bae77a [INFO] running `Command { std: "docker" "start" "-a" "3468a0904b2e0185d7293745507233230a4e76784d530d0ed4783d9d56bae77a", kill_on_drop: false }` [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/rwlock.rs:160:16 [INFO] [stderr] | [INFO] [stderr] 160 | Ok(try!(RwLockReadGuard::new(&*self.inner, &self.data))) [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/rwlock.rs:206:16 [INFO] [stderr] | [INFO] [stderr] 206 | Ok(try!(RwLockWriteGuard::new(&*self.inner, &self.data))) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/mutex.rs:215:20 [INFO] [stderr] | [INFO] [stderr] 215 | Ok(try!(MutexGuard::new(&*self.inner, &self.data))) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/poison.rs:158:32 [INFO] [stderr] | [INFO] [stderr] 158 | fn cause(&self) -> Option<&Error> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 158 - fn cause(&self) -> Option<&Error> { [INFO] [stderr] 158 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stderr] --> src/condvar.rs:181:26 [INFO] [stderr] | [INFO] [stderr] 181 | match self.mutex.compare_and_swap(0, addr, Ordering::SeqCst) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/poison.rs:146:14 [INFO] [stderr] | [INFO] [stderr] 146 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/poison.rs:153:48 [INFO] [stderr] | [INFO] [stderr] 153 | TryLockError::Poisoned(ref p) => p.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/rwlock.rs:160:16 [INFO] [stderr] | [INFO] [stderr] 160 | Ok(try!(RwLockReadGuard::new(&*self.inner, &self.data))) [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:1:24 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(test, deny(warnings))] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/poison.rs:158:32 [INFO] [stderr] | [INFO] [stderr] 158 | fn cause(&self) -> Option<&Error> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]` [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 158 - fn cause(&self) -> Option<&Error> { [INFO] [stderr] 158 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `rwlock2` (lib) generated 7 warnings [INFO] [stderr] warning: `rwlock2` (lib test) generated 7 warnings (5 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rwlock2-5076cc6afa8b1033) [INFO] [stdout] [INFO] [stdout] running 34 tests [INFO] [stdout] test condvar::tests::smoke ... ok [INFO] [stdout] test mutex::tests::smoke ... ok [INFO] [stdout] test condvar::tests::notify_one ... ok [INFO] [stdout] test mutex::tests::test_get_mut ... ok [INFO] [stdout] test mutex::tests::test_into_inner ... ok [INFO] [stdout] test mutex::tests::test_into_inner_drop ... ok [INFO] [stdout] test mutex::tests::lots_and_lots ... ok [INFO] [stdout] test mutex::tests::test_mutex_arc_condvar ... ok [INFO] [stdout] test mutex::tests::test_mutex_unsized ... ok [INFO] [stdout] test mutex::tests::test_mutex_arc_nested ... ok [INFO] [stdout] test rwlock::tests::smoke ... ok [INFO] [stdout] test mutex::tests::try_lock ... ok [INFO] [stdout] test rwlock::tests::test_get_mut ... ok [INFO] [stdout] test condvar::tests::notify_all ... ok [INFO] [stdout] test rwlock::tests::test_into_inner ... ok [INFO] [stdout] test rwlock::tests::test_into_inner_drop ... ok [INFO] [stdout] test rwlock::tests::test_rwlock_unsized ... ok [INFO] [stdout] test rwlock::tests::test_rwlock_try_write ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc ... ok [INFO] [stdout] test rwlock::tests::frob ... ok [INFO] [stdout] test condvar::tests::two_mutexes - should panic ... ok [INFO] [stdout] test mutex::tests::test_arc_condvar_poison ... ok [INFO] [stdout] test mutex::tests::test_get_mut_poison ... ok [INFO] [stdout] test mutex::tests::test_mutex_arc_access_in_unwind ... ok [INFO] [stdout] test mutex::tests::test_mutex_guard_map_panic ... ok [INFO] [stdout] test mutex::tests::test_into_inner_poison ... ok [INFO] [stdout] test mutex::tests::test_mutex_arc_poison ... ok [INFO] [stdout] test rwlock::tests::test_get_mut_poison ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc_access_in_unwind ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_rr ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_rw ... ok [INFO] [stdout] test rwlock::tests::test_into_inner_poison ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc_poison_wr ... ok [INFO] [stdout] test rwlock::tests::test_rw_arc_poison_ww ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] Doc-tests rwlock2 [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test src/condvar.rs - condvar::StaticCondvar (line 78) ... ignored [INFO] [stdout] test src/mutex.rs - mutex::StaticMutex (line 137) ... ignored [INFO] [stdout] test src/rwlock.rs - rwlock::RwLock::new (line 106) ... ok [INFO] [stdout] test src/rwlock.rs - rwlock::RwLockReadGuard::map (line 317) ... ok [INFO] [stdout] test src/mutex.rs - mutex::MutexGuard::map (line 329) ... ok [INFO] [stdout] test src/rwlock.rs - rwlock::RwLock (line 44) ... ok [INFO] [stdout] test src/rwlock.rs - rwlock::RwLockWriteGuard::map (line 380) ... ok [INFO] [stdout] test src/condvar.rs - condvar::Condvar (line 47) ... ok [INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 86) ... ok [INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 48) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.56s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3468a0904b2e0185d7293745507233230a4e76784d530d0ed4783d9d56bae77a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3468a0904b2e0185d7293745507233230a4e76784d530d0ed4783d9d56bae77a", kill_on_drop: false }` [INFO] [stdout] 3468a0904b2e0185d7293745507233230a4e76784d530d0ed4783d9d56bae77a