[INFO] fetching crate lock-hierarchy 0.2.0... [INFO] testing lock-hierarchy-0.2.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate lock-hierarchy 0.2.0 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lock-hierarchy 0.2.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c6e05fc3d3b11457579678b9a71d3e39e0e074f5ccda45bfac84724cf9ffbb7c [INFO] running `Command { std: "docker" "start" "-a" "c6e05fc3d3b11457579678b9a71d3e39e0e074f5ccda45bfac84724cf9ffbb7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c6e05fc3d3b11457579678b9a71d3e39e0e074f5ccda45bfac84724cf9ffbb7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6e05fc3d3b11457579678b9a71d3e39e0e074f5ccda45bfac84724cf9ffbb7c", kill_on_drop: false }` [INFO] [stdout] c6e05fc3d3b11457579678b9a71d3e39e0e074f5ccda45bfac84724cf9ffbb7c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e43f56a2d5a8b9012250c29d41874451918f8b82618578edd6e8906c6f83e03d [INFO] running `Command { std: "docker" "start" "-a" "e43f56a2d5a8b9012250c29d41874451918f8b82618578edd6e8906c6f83e03d", 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 0.16s [INFO] running `Command { std: "docker" "inspect" "e43f56a2d5a8b9012250c29d41874451918f8b82618578edd6e8906c6f83e03d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e43f56a2d5a8b9012250c29d41874451918f8b82618578edd6e8906c6f83e03d", kill_on_drop: false }` [INFO] [stdout] e43f56a2d5a8b9012250c29d41874451918f8b82618578edd6e8906c6f83e03d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42aa4c77aa38996faec27fc094eff7a518f9e353c744ac15c113f1ef0ac4a0cc [INFO] running `Command { std: "docker" "start" "-a" "42aa4c77aa38996faec27fc094eff7a518f9e353c744ac15c113f1ef0ac4a0cc", 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] [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/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] [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 0.57s [INFO] running `Command { std: "docker" "inspect" "42aa4c77aa38996faec27fc094eff7a518f9e353c744ac15c113f1ef0ac4a0cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42aa4c77aa38996faec27fc094eff7a518f9e353c744ac15c113f1ef0ac4a0cc", kill_on_drop: false }` [INFO] [stdout] 42aa4c77aa38996faec27fc094eff7a518f9e353c744ac15c113f1ef0ac4a0cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4721a079db8e10afb8b5cc67b666f0ecf625d550339242cad236a9881c59d35f [INFO] running `Command { std: "docker" "start" "-a" "4721a079db8e10afb8b5cc67b666f0ecf625d550339242cad236a9881c59d35f", 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 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lock_hierarchy-0e755263dd2fc24d) [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::simultaneous_lock_if_higher_is_acquired_first ... 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 mutex::tests::acquire_resource ... ok [INFO] [stdout] test mutex::tests::allow_mutation ... ok [INFO] [stdout] test mutex::tests::correct_level_locked ... ok [INFO] [stdout] test mutex::tests::created_by_default_impl_should_be_level_0 ... ok [INFO] [stdout] test rwlock::tests::acquire_resource ... ok [INFO] [stdout] test mutex::tests::mutex_created_by_from_impl_should_be_level_0 ... ok [INFO] [stdout] test rwlock::tests::allow_mutation ... ok [INFO] [stdout] test rwlock::tests::correct_level_locked ... ok [INFO] [stdout] test mutex::tests::multithreaded ... 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 rwlock::tests::created_by_default_impl_should_be_level_0 ... ok [INFO] [stdout] test level::tests::panic_if_0_is_acquired_before_1 - should panic ... ok [INFO] [stdout] test level::tests::panic_if_two_mutexes_with_level_0_are_acquired - should panic ... ok [INFO] [stdout] test level::tests::self_deadlock_detected - should panic ... ok [INFO] [stdout] test rwlock::tests::self_deadlock_write - 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::self_deadlock_read - should panic ... ok [INFO] [stderr] Doc-tests lock_hierarchy [INFO] [stdout] test mutex::tests::poisoned_lock - should panic ... ok [INFO] [stdout] test rwlock::tests::poisoned_write_lock - 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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 17) ... ok [INFO] [stdout] test src/rwlock.rs - rwlock::RwLock (line 17) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4721a079db8e10afb8b5cc67b666f0ecf625d550339242cad236a9881c59d35f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4721a079db8e10afb8b5cc67b666f0ecf625d550339242cad236a9881c59d35f", kill_on_drop: false }` [INFO] [stdout] 4721a079db8e10afb8b5cc67b666f0ecf625d550339242cad236a9881c59d35f