[INFO] fetching crate piscina 0.2.1... [INFO] testing piscina-0.2.1 against 1.90.0 for beta-1.91-3 [INFO] extracting crate piscina 0.2.1 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate piscina 0.2.1 [INFO] finished tweaking crates.io crate piscina 0.2.1 [INFO] tweaked toml for crates.io crate piscina 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate piscina 0.2.1 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 25 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures-test v0.3.31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 59cb5b532b8b0d43fc9de3ee8221dbb8de101e688c028a94435e1033d6286eda [INFO] running `Command { std: "docker" "start" "-a" "59cb5b532b8b0d43fc9de3ee8221dbb8de101e688c028a94435e1033d6286eda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "59cb5b532b8b0d43fc9de3ee8221dbb8de101e688c028a94435e1033d6286eda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59cb5b532b8b0d43fc9de3ee8221dbb8de101e688c028a94435e1033d6286eda", kill_on_drop: false }` [INFO] [stdout] 59cb5b532b8b0d43fc9de3ee8221dbb8de101e688c028a94435e1033d6286eda [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c039c5575b79bab4a2f2fefe9b7a8ad488d87fa757c36f2973bfaf6e925c4820 [INFO] running `Command { std: "docker" "start" "-a" "c039c5575b79bab4a2f2fefe9b7a8ad488d87fa757c36f2973bfaf6e925c4820", kill_on_drop: false }` [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling piscina v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `pop` is never used [INFO] [stdout] --> src/internal.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait PoolStore { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 10 | fn pop(&mut self) -> Option; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.82s [INFO] running `Command { std: "docker" "inspect" "c039c5575b79bab4a2f2fefe9b7a8ad488d87fa757c36f2973bfaf6e925c4820", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c039c5575b79bab4a2f2fefe9b7a8ad488d87fa757c36f2973bfaf6e925c4820", kill_on_drop: false }` [INFO] [stdout] c039c5575b79bab4a2f2fefe9b7a8ad488d87fa757c36f2973bfaf6e925c4820 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 512316a46c9efa5a7a2009ec85f3723515ca358c4187c14a974a6164f66f54c1 [INFO] running `Command { std: "docker" "start" "-a" "512316a46c9efa5a7a2009ec85f3723515ca358c4187c14a974a6164f66f54c1", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling pin-project-internal v1.1.10 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling pin-project v1.1.10 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling piscina v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `pop` is never used [INFO] [stdout] --> src/internal.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait PoolStore { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 10 | fn pop(&mut self) -> Option; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling futures-test v0.3.31 [INFO] [stdout] warning: method `pop` is never used [INFO] [stdout] --> src/internal.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait PoolStore { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 10 | fn pop(&mut self) -> Option; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/pool.rs:632:9 [INFO] [stdout] | [INFO] [stdout] 632 | drop(item); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `i32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 632 - drop(item); [INFO] [stdout] 632 + let _ = item; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/priority.rs:841:9 [INFO] [stdout] | [INFO] [stdout] 841 | drop(item); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&str` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 841 - drop(item); [INFO] [stdout] 841 + let _ = item; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 11.63s [INFO] running `Command { std: "docker" "inspect" "512316a46c9efa5a7a2009ec85f3723515ca358c4187c14a974a6164f66f54c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "512316a46c9efa5a7a2009ec85f3723515ca358c4187c14a974a6164f66f54c1", kill_on_drop: false }` [INFO] [stdout] 512316a46c9efa5a7a2009ec85f3723515ca358c4187c14a974a6164f66f54c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 403d9d966730ea19c194fc1d73fdb1dc0f1d8d9f4954fd6fa151b3a0f78f020e [INFO] running `Command { std: "docker" "start" "-a" "403d9d966730ea19c194fc1d73fdb1dc0f1d8d9f4954fd6fa151b3a0f78f020e", kill_on_drop: false }` [INFO] [stderr] warning: method `pop` is never used [INFO] [stderr] --> src/internal.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 6 | pub trait PoolStore { [INFO] [stderr] | --------- method in this trait [INFO] [stderr] ... [INFO] [stderr] 10 | fn pop(&mut self) -> Option; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `piscina` (lib) generated 1 warning [INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stderr] --> src/pool.rs:632:9 [INFO] [stderr] | [INFO] [stderr] 632 | drop(item); [INFO] [stderr] | ^^^^^----^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `i32` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 632 - drop(item); [INFO] [stderr] 632 + let _ = item; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/priority.rs:841:9 [INFO] [stderr] | [INFO] [stderr] 841 | drop(item); [INFO] [stderr] | ^^^^^----^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&str` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_references)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 841 - drop(item); [INFO] [stderr] 841 + let _ = item; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `piscina` (lib test) generated 3 warnings (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/piscina-7d2a5d0fc884748f) [INFO] [stdout] running 49 tests [INFO] [stdout] test pool::tests::blocking_get_from_non_empty_pool_returns_item ... ok [INFO] [stdout] test pool::tests::create_pool_with_capacity ... ok [INFO] [stdout] test pool::tests::create_pool ... ok [INFO] [stdout] test pool::tests::poll_get_after_dropping_borrowed_item_returns_ready ... ok [INFO] [stdout] test pool::tests::poll_get_from_empty_pool_returns_pending ... ok [INFO] [stdout] test pool::tests::poll_get_from_exhausted_pool_returns_pending ... ok [INFO] [stdout] test pool::tests::poll_get_from_pool_of_one_item_returns_ready ... ok [INFO] [stdout] test pool::tests::poll_pop_after_dropping_borrowed_item_returns_ready ... ok [INFO] [stdout] test pool::tests::poll_get_after_dropping_borrowed_item_and_putting_new_item_returns_ready ... ok [INFO] [stdout] test pool::tests::poll_pop_from_pool_of_one_item_returns_ready ... ok [INFO] [stdout] test pool::tests::poll_pop_reduce_len_by_one ... ok [INFO] [stdout] test pool::tests::pool_len_does_not_change_after_borrowing_item ... ok [INFO] [stdout] test pool::tests::poll_pop_after_dropping_removed_item_returns_pending ... ok [INFO] [stdout] test pool::tests::try_get_after_dropping_borrowed_item_returns_some ... ok [INFO] [stdout] test pool::tests::try_get_after_dropping_borrowed_item_and_putting_new_item_returns_some ... ok [INFO] [stdout] test pool::tests::try_get_from_exhausted_pool_returns_none ... ok [INFO] [stdout] test pool::tests::try_get_from_non_empty_pool_returns_some ... ok [INFO] [stdout] test pool::tests::try_pop_from_empty_pool_returns_none ... ok [INFO] [stdout] test pool::tests::poll_pop_from_empty_pool_returns_pending ... ok [INFO] [stdout] test pool::tests::try_get_from_empty_pool_returns_none ... ok [INFO] [stdout] test pool::tests::try_pop_reduce_len_by_one ... ok [INFO] [stdout] test priority::tests::blocking_get_from_non_empty_pool_returns_item ... ok [INFO] [stdout] test priority::tests::create_priority_pool ... ok [INFO] [stdout] test priority::tests::poll_get_after_dropping_borrowed_item_returns_highest_priority_item ... ok [INFO] [stdout] test priority::tests::poll_get_after_dropping_borrowed_item_returns_ready ... ok [INFO] [stdout] test priority::tests::create_priority_pool_with_capacity ... ok [INFO] [stdout] test priority::tests::poll_get_after_dropping_borrowed_item_and_putting_new_item_returns_ready ... ok [INFO] [stdout] test priority::tests::poll_get_from_empty_pool_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_get_from_exhausted_pool_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_pop_after_dropping_removed_item_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_pop_from_empty_pool_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_pop_from_exhausted_pool_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_pop_after_dropping_borrowed_item_returns_ready ... ok [INFO] [stdout] test priority::tests::poll_get_from_pool_of_one_item_returns_ready ... ok [INFO] [stdout] test priority::tests::try_get_after_dropping_borrowed_item_returns_highest_priority_item ... ok [INFO] [stdout] test priority::tests::poll_pop_reduce_len_by_one ... ok [INFO] [stdout] test priority::tests::poll_get_returns_highest_priority_item ... ok [INFO] [stdout] test priority::tests::pool_len_does_not_change_after_borrowing_item ... ok [INFO] [stdout] test priority::tests::try_get_after_dropping_borrowed_item_and_putting_new_item_returns_some ... ok [INFO] [stdout] test priority::tests::try_get_from_empty_pool_returns_none ... ok [INFO] [stdout] test priority::tests::try_pop_after_dropping_borrowed_item_returns_highest_priority_item ... ok [INFO] [stdout] test priority::tests::try_pop_from_empty_pool_returns_none ... ok [INFO] [stdout] test priority::tests::try_get_from_non_empty_pool_returns_some ... ok [INFO] [stdout] test priority::tests::try_get_after_dropping_borrowed_item_returns_some ... ok [INFO] [stdout] test priority::tests::try_pop_highest_priority_item ... ok [INFO] [stdout] test priority::tests::try_get_returns_highest_priority_item ... ok [INFO] [stdout] test priority::tests::try_pop_reduce_len_by_one ... ok [INFO] [stdout] test pool::tests::poll_pop_from_exhausted_pool_returns_pending ... ok [INFO] [stdout] test priority::tests::poll_pop_from_pool_of_one_item_returns_ready ... ok [INFO] [stderr] Doc-tests piscina [INFO] [stdout] [INFO] [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 22 tests [INFO] [stdout] test src/lib.rs - (line 74) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool (line 121) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool (line 99) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::blocking_pop (line 315) ... ok [INFO] [stdout] test src/lib.rs - (line 31) ... ok [INFO] [stdout] test src/lib.rs - (line 53) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::get (line 265) ... ok [INFO] [stdout] test src/lib.rs - (line 104) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::blocking_get (line 230) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::put (line 186) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::pop (line 348) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::try_pop (line 292) ... ok [INFO] [stdout] test src/pool.rs - pool::Pool::try_get (line 203) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::blocking_pop (line 389) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool (line 195) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::pop (line 423) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::blocking_get (line 304) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::try_pop (line 365) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool (line 165) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::get (line 339) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::try_get (line 277) ... ok [INFO] [stdout] test src/priority.rs - priority::PriorityPool::put (line 259) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.75s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "403d9d966730ea19c194fc1d73fdb1dc0f1d8d9f4954fd6fa151b3a0f78f020e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "403d9d966730ea19c194fc1d73fdb1dc0f1d8d9f4954fd6fa151b3a0f78f020e", kill_on_drop: false }` [INFO] [stdout] 403d9d966730ea19c194fc1d73fdb1dc0f1d8d9f4954fd6fa151b3a0f78f020e