[INFO] fetching crate task_pool 0.1.5...
[INFO] testing task_pool-0.1.5 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate task_pool 0.1.5 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate task_pool 0.1.5 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded takecell v0.1.2
[INFO] [stderr]   Downloaded wasm_sync v0.1.2
[INFO] [stderr]   Downloaded priority-queue v2.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f
[INFO] running `Command { std: "docker" "start" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling takecell v0.1.2
[INFO] [stderr]    Compiling indexmap v2.14.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling arc-swap v1.9.2
[INFO] [stderr]    Compiling priority-queue v2.7.0
[INFO] [stderr]    Compiling task_pool v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::fetch_update`: renamed to `try_update` for consistency
[INFO] [stdout]     --> src/lib.rs:1045:18
[INFO] [stdout]      |
[INFO] [stdout] 1045 |                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |                  ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:1:9
[INFO] [stdout]      |
[INFO] [stdout]    1 | #![deny(warnings)]
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]      |
[INFO] [stdout] 1045 -                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout] 1045 +                 .try_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/mod.rs:640:4
[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 1.98s
[INFO] running `Command { std: "docker" "inspect" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.34
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::fetch_update`: renamed to `try_update` for consistency
[INFO] [stdout]     --> src/lib.rs:1045:18
[INFO] [stdout]      |
[INFO] [stdout] 1045 |                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |                  ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:1:9
[INFO] [stdout]      |
[INFO] [stdout]    1 | #![deny(warnings)]
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]      |
[INFO] [stdout] 1045 -                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout] 1045 +                 .try_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/mod.rs:640:4
[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 futures-util v0.3.34
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling task_pool v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::fetch_update`: renamed to `try_update` for consistency
[INFO] [stdout]     --> src/lib.rs:1045:18
[INFO] [stdout]      |
[INFO] [stdout] 1045 |                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |                  ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:1:9
[INFO] [stdout]      |
[INFO] [stdout]    1 | #![deny(warnings)]
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]      |
[INFO] [stdout] 1045 -                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout] 1045 +                 .try_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/mod.rs:640:4
[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 3.92s
[INFO] running `Command { std: "docker" "inspect" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::Atomic::<usize>::fetch_update`: renamed to `try_update` for consistency
[INFO] [stderr]     --> src/lib.rs:1045:18
[INFO] [stderr]      |
[INFO] [stderr] 1045 |                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stderr]      |                  ^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]     --> src/lib.rs:1:9
[INFO] [stderr]      |
[INFO] [stderr]    1 | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: replace the use of the deprecated method
[INFO] [stderr]      |
[INFO] [stderr] 1045 -                 .fetch_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stderr] 1045 +                 .try_update(Ordering::AcqRel, Ordering::Acquire, |x| {
[INFO] [stderr]      |
[INFO] [stderr] 
[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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/slice/mod.rs:640:4
[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 2 warnings (run `cargo fix --lib -p task_pool` to apply 1 suggestion)
[INFO] [stderr] warning: `task_pool` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/task_pool-6605b663240b273d)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::execute_background_blocking ... ok
[INFO] [stdout] test tests::execute_double ... 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 0.22s
[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 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f", kill_on_drop: false }`
[INFO] [stdout] 3f1078aac685fab1729f6cbeb6cfc1efd1fc49d266c0e009bbc1c6dd9a3b0d4f
