[INFO] fetching crate ff-common 0.9.0...
[INFO] testing ff-common-0.9.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate ff-common 0.9.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ff-common 0.9.0
[INFO] finished tweaking crates.io crate ff-common 0.9.0
[INFO] tweaked toml for crates.io crate ff-common 0.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ff-common 0.9.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ff-common 0.9.0 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" "+562dee4820c458d823175268e41601d4c060588a" "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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e3b4f2fbea8b900eb9e08f74d1a3b2d0251119e3e98bb591364a87049022e6e
[INFO] running `Command { std: "docker" "start" "-a" "6e3b4f2fbea8b900eb9e08f74d1a3b2d0251119e3e98bb591364a87049022e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e3b4f2fbea8b900eb9e08f74d1a3b2d0251119e3e98bb591364a87049022e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e3b4f2fbea8b900eb9e08f74d1a3b2d0251119e3e98bb591364a87049022e6e", kill_on_drop: false }`
[INFO] [stdout] 6e3b4f2fbea8b900eb9e08f74d1a3b2d0251119e3e98bb591364a87049022e6e
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82e91baced5fef0ee0380fff1d0f6099def25f3d6693cdaacd6cfe7536b806e3
[INFO] running `Command { std: "docker" "start" "-a" "82e91baced5fef0ee0380fff1d0f6099def25f3d6693cdaacd6cfe7536b806e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling ff-common v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "82e91baced5fef0ee0380fff1d0f6099def25f3d6693cdaacd6cfe7536b806e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e91baced5fef0ee0380fff1d0f6099def25f3d6693cdaacd6cfe7536b806e3", kill_on_drop: false }`
[INFO] [stdout] 82e91baced5fef0ee0380fff1d0f6099def25f3d6693cdaacd6cfe7536b806e3
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4b63d1bfae55e710af114bf20573e670ae882b86c7b29e8e444610e54c504ba
[INFO] running `Command { std: "docker" "start" "-a" "a4b63d1bfae55e710af114bf20573e670ae882b86c7b29e8e444610e54c504ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling ff-common v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "a4b63d1bfae55e710af114bf20573e670ae882b86c7b29e8e444610e54c504ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b63d1bfae55e710af114bf20573e670ae882b86c7b29e8e444610e54c504ba", kill_on_drop: false }`
[INFO] [stdout] a4b63d1bfae55e710af114bf20573e670ae882b86c7b29e8e444610e54c504ba
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50ab7fb25c368b533a53957abf6de898882aa433e18c03fcd6c1eec674975670
[INFO] running `Command { std: "docker" "start" "-a" "50ab7fb25c368b533a53957abf6de898882aa433e18c03fcd6c1eec674975670", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ff_common-ef892c2427942cf2)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test pool::tests::test_pool_with_arc_release ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_clone_data_independence ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_as_mut ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_as_ref ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_clone_becomes_standalone ... ok
[INFO] [stdout] test pool::tests::test_empty_buffer ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_data_mut ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_into_inner ... ok
[INFO] [stdout] test pool::tests::test_pool_dropped_before_buffer ... ok
[INFO] [stdout] test pool::tests::test_pooled_buffer_standalone ... ok
[INFO] [stdout] test pool::tests::vec_pool_acquire_should_choose_smallest_fitting_buffer ... ok
[INFO] [stdout] test pool::tests::vec_pool_acquire_should_return_none_when_no_suitable_buffer ... ok
[INFO] [stdout] test pool::tests::vec_pool_acquired_buffer_should_return_on_drop_when_pool_was_empty ... ok
[INFO] [stdout] test pool::tests::vec_pool_acquire_should_return_none_when_empty ... ok
[INFO] [stdout] test pool::tests::vec_pool_should_grow_from_zero_via_connected_alloc ... ok
[INFO] [stdout] test pool::tests::vec_pool_should_start_empty ... ok
[INFO] [stdout] test pool::tests::vec_pool_should_not_exceed_capacity ... ok
[INFO] [stdout] test pool::tests::vec_pool_buffer_should_auto_return_on_drop ... ok
[INFO] [stdout] test pool::tests::vec_pool_release_then_acquire_should_reuse_buffer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ff_common
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/pool.rs - pool::FramePool (line 22) ... ignored
[INFO] [stdout] test src/pool.rs - pool::VecPool::available (line 256) ... ok
[INFO] [stdout] test src/pool.rs - pool::VecPool (line 211) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.72s; merged doctests compilation took 0.71s
[INFO] running `Command { std: "docker" "inspect" "50ab7fb25c368b533a53957abf6de898882aa433e18c03fcd6c1eec674975670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ab7fb25c368b533a53957abf6de898882aa433e18c03fcd6c1eec674975670", kill_on_drop: false }`
[INFO] [stdout] 50ab7fb25c368b533a53957abf6de898882aa433e18c03fcd6c1eec674975670