[INFO] fetching crate lock-hierarchy 0.2.0... [INFO] testing lock-hierarchy-0.2.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8 [INFO] extracting crate lock-hierarchy 0.2.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate lock-hierarchy 0.2.0 [INFO] finished tweaking crates.io crate lock-hierarchy 0.2.0 [INFO] tweaked toml for crates.io crate lock-hierarchy 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate lock-hierarchy 0.2.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate lock-hierarchy 0.2.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7012c0b63658f01ce5ab319a10c37c00f770ea9e78ddc5c5f7bb06a9aca59512 [INFO] running `Command { std: "docker" "start" "-a" "7012c0b63658f01ce5ab319a10c37c00f770ea9e78ddc5c5f7bb06a9aca59512", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7012c0b63658f01ce5ab319a10c37c00f770ea9e78ddc5c5f7bb06a9aca59512", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7012c0b63658f01ce5ab319a10c37c00f770ea9e78ddc5c5f7bb06a9aca59512", kill_on_drop: false }` [INFO] [stdout] 7012c0b63658f01ce5ab319a10c37c00f770ea9e78ddc5c5f7bb06a9aca59512 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a118a87b1a86510831efcf0c112c8644b5595803f30c0c684407fbf3950e970 [INFO] running `Command { std: "docker" "start" "-a" "1a118a87b1a86510831efcf0c112c8644b5595803f30c0c684407fbf3950e970", kill_on_drop: false }` [INFO] [stderr] Compiling lock-hierarchy v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mutex.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn lock(&self) -> LockResult> { [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] 51 | pub fn lock(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn read(&self) -> LockResult> { [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] 51 | pub fn read(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn write(&self) -> LockResult> { [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] 60 | pub fn write(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "1a118a87b1a86510831efcf0c112c8644b5595803f30c0c684407fbf3950e970", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a118a87b1a86510831efcf0c112c8644b5595803f30c0c684407fbf3950e970", kill_on_drop: false }` [INFO] [stdout] 1a118a87b1a86510831efcf0c112c8644b5595803f30c0c684407fbf3950e970 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bf14262dfdd9d1c6b135a1601be23eba57b9b6c29f231674b1abb754699b6ece [INFO] running `Command { std: "docker" "start" "-a" "bf14262dfdd9d1c6b135a1601be23eba57b9b6c29f231674b1abb754699b6ece", kill_on_drop: false }` [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mutex.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn lock(&self) -> LockResult> { [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] 51 | pub fn lock(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn read(&self) -> LockResult> { [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] 51 | pub fn read(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn write(&self) -> LockResult> { [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] 60 | pub fn write(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lock-hierarchy v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/mutex.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn lock(&self) -> LockResult> { [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] 51 | pub fn lock(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn read(&self) -> LockResult> { [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] 51 | pub fn read(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/rwlock.rs:60:18 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn write(&self) -> LockResult> { [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] 60 | pub fn write(&self) -> LockResult> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "bf14262dfdd9d1c6b135a1601be23eba57b9b6c29f231674b1abb754699b6ece", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf14262dfdd9d1c6b135a1601be23eba57b9b6c29f231674b1abb754699b6ece", kill_on_drop: false }` [INFO] [stdout] bf14262dfdd9d1c6b135a1601be23eba57b9b6c29f231674b1abb754699b6ece [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5388835626f14fb47bc40b342ef8b4da64ebdd323875efd2b42ac02bf85a4421 [INFO] running `Command { std: "docker" "start" "-a" "5388835626f14fb47bc40b342ef8b4da64ebdd323875efd2b42ac02bf85a4421", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/mutex.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn lock(&self) -> LockResult> { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 51 | pub fn lock(&self) -> LockResult> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/rwlock.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn read(&self) -> LockResult> { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 51 | pub fn read(&self) -> LockResult> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/rwlock.rs:60:18 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn write(&self) -> LockResult> { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 60 | pub fn write(&self) -> LockResult> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `lock-hierarchy` (lib) generated 3 warnings (run `cargo fix --lib -p lock-hierarchy` to apply 3 suggestions) [INFO] [stderr] warning: `lock-hierarchy` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lock_hierarchy-4e49cc50f7245093) [INFO] [stdout] [INFO] [stdout] running 25 tests [INFO] [stdout] test level::tests::created_by_default_impl_should_be_level_0 ... ok [INFO] [stdout] test level::tests::any_order_of_release ... ok [INFO] [stdout] test level::tests::two_level_0_in_succession ... ok [INFO] [stdout] test level::tests::simultaneous_lock_if_higher_is_acquired_first ... ok [INFO] [stdout] test mutex::tests::acquire_resource ... ok [INFO] [stdout] test mutex::tests::correct_level_locked ... ok [INFO] [stdout] test mutex::tests::multithreaded ... ok [INFO] [stdout] test rwlock::tests::acquire_resource ... ok [INFO] [stdout] test rwlock::tests::allow_mutation ... ok [INFO] [stdout] test mutex::tests::mutex_created_by_from_impl_should_be_level_0 ... ok [INFO] [stdout] test mutex::tests::created_by_default_impl_should_be_level_0 ... ok [INFO] [stdout] test rwlock::tests::correct_level_locked ... ok [INFO] [stdout] test rwlock::tests::created_by_default_impl_should_be_level_0 ... ok [INFO] [stdout] test rwlock::tests::multithreaded ... ok [INFO] [stdout] test rwlock::tests::mutex_created_by_from_impl_should_be_level_0 ... ok [INFO] [stdout] test mutex::tests::allow_mutation ... ok [INFO] [stdout] test level::tests::panic_if_0_is_acquired_before_1 - should panic ... ok [INFO] [stdout] test level::tests::self_deadlock_detected - should panic ... ok [INFO] [stdout] test level::tests::panic_if_two_mutexes_with_level_0_are_acquired - should panic ... ok [INFO] [stdout] test mutex::tests::poisoned_lock - should panic ... ok [INFO] [stdout] test mutex::tests::self_deadlock - should panic ... ok [INFO] [stdout] test rwlock::tests::poisoned_read_lock - should panic ... ok [INFO] [stdout] test rwlock::tests::poisoned_write_lock - should panic ... ok [INFO] [stdout] test rwlock::tests::self_deadlock_read - should panic ... ok [INFO] [stdout] test rwlock::tests::self_deadlock_write - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] Doc-tests lock_hierarchy [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/rwlock.rs - rwlock::RwLock (line 17) ... ok [INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 17) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5388835626f14fb47bc40b342ef8b4da64ebdd323875efd2b42ac02bf85a4421", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5388835626f14fb47bc40b342ef8b4da64ebdd323875efd2b42ac02bf85a4421", kill_on_drop: false }` [INFO] [stdout] 5388835626f14fb47bc40b342ef8b4da64ebdd323875efd2b42ac02bf85a4421