[INFO] fetching crate qp 0.2.1... [INFO] testing qp-0.2.1 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate qp 0.2.1 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate qp 0.2.1 [INFO] finished tweaking crates.io crate qp 0.2.1 [INFO] tweaked toml for crates.io crate qp 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate qp 0.2.1 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate qp 0.2.1 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c82075a7c65688ff3a460486b7504b9064e1ce1fc4923116dcf70af772cf424f [INFO] running `Command { std: "docker" "start" "-a" "c82075a7c65688ff3a460486b7504b9064e1ce1fc4923116dcf70af772cf424f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c82075a7c65688ff3a460486b7504b9064e1ce1fc4923116dcf70af772cf424f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c82075a7c65688ff3a460486b7504b9064e1ce1fc4923116dcf70af772cf424f", kill_on_drop: false }` [INFO] [stdout] c82075a7c65688ff3a460486b7504b9064e1ce1fc4923116dcf70af772cf424f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 21c652af4ef5687b3d3cda14db0035af6df446741e8f97c84b08783ac5651eeb [INFO] running `Command { std: "docker" "start" "-a" "21c652af4ef5687b3d3cda14db0035af6df446741e8f97c84b08783ac5651eeb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling async-trait v0.1.56 [INFO] [stderr] Compiling crossbeam-queue v0.3.5 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling qp v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync.rs:89:24 [INFO] [stdout] | [INFO] [stdout] 89 | pub fn try_acquire(&self) -> Option { [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] 89 | pub fn try_acquire(&self) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.35s [INFO] running `Command { std: "docker" "inspect" "21c652af4ef5687b3d3cda14db0035af6df446741e8f97c84b08783ac5651eeb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21c652af4ef5687b3d3cda14db0035af6df446741e8f97c84b08783ac5651eeb", kill_on_drop: false }` [INFO] [stdout] 21c652af4ef5687b3d3cda14db0035af6df446741e8f97c84b08783ac5651eeb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b5b0851a1152a90be629762082f47f32bae487f2e7b47ab6cc226058bdcfd809 [INFO] running `Command { std: "docker" "start" "-a" "b5b0851a1152a90be629762082f47f32bae487f2e7b47ab6cc226058bdcfd809", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling once_cell v1.12.0 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync.rs:89:24 [INFO] [stdout] | [INFO] [stdout] 89 | pub fn try_acquire(&self) -> Option { [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] 89 | pub fn try_acquire(&self) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling tokio v1.19.2 [INFO] [stderr] Compiling qp v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> examples/readme.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | drop(raw_int); [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] 60 - drop(raw_int); [INFO] [stdout] 60 + let _ = raw_int; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync.rs:89:24 [INFO] [stdout] | [INFO] [stdout] 89 | pub fn try_acquire(&self) -> Option { [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] 89 | pub fn try_acquire(&self) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.42s [INFO] running `Command { std: "docker" "inspect" "b5b0851a1152a90be629762082f47f32bae487f2e7b47ab6cc226058bdcfd809", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5b0851a1152a90be629762082f47f32bae487f2e7b47ab6cc226058bdcfd809", kill_on_drop: false }` [INFO] [stdout] b5b0851a1152a90be629762082f47f32bae487f2e7b47ab6cc226058bdcfd809 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dfad2c7b9ca42b9520dff5e5e72175bcfc99acdb5ab850c74b7b00bc2fcad2d6 [INFO] running `Command { std: "docker" "start" "-a" "dfad2c7b9ca42b9520dff5e5e72175bcfc99acdb5ab850c74b7b00bc2fcad2d6", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] [INFO] [stderr] --> src/sync.rs:89:24 [INFO] [stdout] running 2 tests [INFO] [stderr] | [INFO] [stderr] 89 | pub fn try_acquire(&self) -> Option { [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] 89 | pub fn try_acquire(&self) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `qp` (lib) generated 1 warning (run `cargo fix --lib -p qp` to apply 1 suggestion) [INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stderr] --> examples/readme.rs:60:5 [INFO] [stderr] | [INFO] [stderr] 60 | drop(raw_int); [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] 60 - drop(raw_int); [INFO] [stderr] 60 + let _ = raw_int; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `qp` (example "readme") generated 1 warning [INFO] [stderr] warning: `qp` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qp-7979973e4bc2bc94) [INFO] [stdout] test pool::tests::test_abort_acquire ... ok [INFO] [stdout] test sync::tests::test_abort_acquire ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running tests/counter.rs (/opt/rustwide/target/debug/deps/counter-905bcf0ffa757818) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test main ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests qp [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/sync.rs - sync::Semaphore::new (line 20) ... ok [INFO] [stdout] test src/sync.rs - sync::Semaphore::acquire (line 36) ... ok [INFO] [stdout] test src/sync.rs - sync::Semaphore::available_permits (line 56) ... ok [INFO] [stdout] test src/sync.rs - sync::Semaphore::try_acquire (line 76) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "dfad2c7b9ca42b9520dff5e5e72175bcfc99acdb5ab850c74b7b00bc2fcad2d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfad2c7b9ca42b9520dff5e5e72175bcfc99acdb5ab850c74b7b00bc2fcad2d6", kill_on_drop: false }` [INFO] [stdout] dfad2c7b9ca42b9520dff5e5e72175bcfc99acdb5ab850c74b7b00bc2fcad2d6