[INFO] fetching crate task_pool 0.1.5...
[INFO] testing task_pool-0.1.5 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate task_pool 0.1.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate task_pool 0.1.5
[INFO] finished tweaking crates.io crate task_pool 0.1.5
[INFO] tweaked toml for crates.io crate task_pool 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate task_pool 0.1.5 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f4792e166d2bc79dd065c608713eeea8e960877bcd57f670aacb6700c20410d
[INFO] running `Command { std: "docker" "start" "-a" "7f4792e166d2bc79dd065c608713eeea8e960877bcd57f670aacb6700c20410d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4792e166d2bc79dd065c608713eeea8e960877bcd57f670aacb6700c20410d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4792e166d2bc79dd065c608713eeea8e960877bcd57f670aacb6700c20410d", kill_on_drop: false }`
[INFO] [stdout] 7f4792e166d2bc79dd065c608713eeea8e960877bcd57f670aacb6700c20410d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d91d62d9f2fea838fa76587516cf040d6f02dd4acd95e5c81b6f5366ae7c70b1
[INFO] running `Command { std: "docker" "start" "-a" "d91d62d9f2fea838fa76587516cf040d6f02dd4acd95e5c81b6f5366ae7c70b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling takecell v0.1.1
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling arc-swap v1.9.1
[INFO] [stderr]    Compiling priority-queue v2.7.0
[INFO] [stderr]    Compiling task_pool v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^-------------------^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this raw pointer has type `*mut Vec<std::cell::UnsafeCell<std::mem::MaybeUninit<T>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[std::cell::UnsafeCell<std::mem::MaybeUninit<T>>]`
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:639:4
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(&(*inner.results.get())).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ++                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "d91d62d9f2fea838fa76587516cf040d6f02dd4acd95e5c81b6f5366ae7c70b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d91d62d9f2fea838fa76587516cf040d6f02dd4acd95e5c81b6f5366ae7c70b1", kill_on_drop: false }`
[INFO] [stdout] d91d62d9f2fea838fa76587516cf040d6f02dd4acd95e5c81b6f5366ae7c70b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee7a57c12417ea934eabbb34b99b44937f1abe1324f324370c78a64ff6c24328
[INFO] running `Command { std: "docker" "start" "-a" "ee7a57c12417ea934eabbb34b99b44937f1abe1324f324370c78a64ff6c24328", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^-------------------^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this raw pointer has type `*mut Vec<std::cell::UnsafeCell<std::mem::MaybeUninit<T>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[std::cell::UnsafeCell<std::mem::MaybeUninit<T>>]`
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:639:4
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(&(*inner.results.get())).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ++                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling task_pool v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^-------------------^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this raw pointer has type `*mut Vec<std::cell::UnsafeCell<std::mem::MaybeUninit<T>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[std::cell::UnsafeCell<std::mem::MaybeUninit<T>>]`
[INFO] [stdout]    --> src/lib.rs:938:26
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked` require a reference
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:639:4
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 938 |                         *(&(*inner.results.get())).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stdout]     |                          ++                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "ee7a57c12417ea934eabbb34b99b44937f1abe1324f324370c78a64ff6c24328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee7a57c12417ea934eabbb34b99b44937f1abe1324f324370c78a64ff6c24328", kill_on_drop: false }`
[INFO] [stdout] ee7a57c12417ea934eabbb34b99b44937f1abe1324f324370c78a64ff6c24328
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe0e1c127e45acece0db5d1ada11d1bd5b29b1e5e59bfbd2dcce86264503ce8a
[INFO] running `Command { std: "docker" "start" "-a" "fe0e1c127e45acece0db5d1ada11d1bd5b29b1e5e59bfbd2dcce86264503ce8a", kill_on_drop: false }`
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/lib.rs:938:26
[INFO] [stderr]     |
[INFO] [stderr] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stderr]     |                          ^^-------------------^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            this raw pointer has type `*mut Vec<std::cell::UnsafeCell<std::mem::MaybeUninit<T>>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[std::cell::UnsafeCell<std::mem::MaybeUninit<T>>]`
[INFO] [stderr]    --> src/lib.rs:938:26
[INFO] [stderr]     |
[INFO] [stderr] 938 |                         *(*inner.results.get()).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `get_unchecked` require a reference
[INFO] [stderr]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:639:4
[INFO] [stderr]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 938 |                         *(&(*inner.results.get())).get_unchecked(idx).get() = MaybeUninit::new(func());
[INFO] [stderr]     |                          ++                      +
[INFO] [stderr] 
[INFO] [stderr] warning: `task_pool` (lib) generated 1 warning
[INFO] [stderr] warning: `task_pool` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/task_pool-ec786864fff20081)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::execute_double ... ok
[INFO] [stdout] test tests::execute_background_blocking ... ok
[INFO] [stdout] test tests::execute_many ... ok
[INFO] [stdout] test tests::execute_double_twice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests task_pool
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe0e1c127e45acece0db5d1ada11d1bd5b29b1e5e59bfbd2dcce86264503ce8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe0e1c127e45acece0db5d1ada11d1bd5b29b1e5e59bfbd2dcce86264503ce8a", kill_on_drop: false }`
[INFO] [stdout] fe0e1c127e45acece0db5d1ada11d1bd5b29b1e5e59bfbd2dcce86264503ce8a
