[INFO] fetching crate coalescing_buffer 0.1.0...
[INFO] testing coalescing_buffer-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate coalescing_buffer 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate coalescing_buffer 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coalescing_buffer 0.1.0
[INFO] finished tweaking crates.io crate coalescing_buffer 0.1.0
[INFO] tweaked toml for crates.io crate coalescing_buffer 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc4cc7e8c7414cf4e55253d2fdb689866ecc5fe9c1489725cebcfd250edd095f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bc4cc7e8c7414cf4e55253d2fdb689866ecc5fe9c1489725cebcfd250edd095f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc4cc7e8c7414cf4e55253d2fdb689866ecc5fe9c1489725cebcfd250edd095f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4cc7e8c7414cf4e55253d2fdb689866ecc5fe9c1489725cebcfd250edd095f", kill_on_drop: false }`
[INFO] [stdout] bc4cc7e8c7414cf4e55253d2fdb689866ecc5fe9c1489725cebcfd250edd095f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81bbe6eba58aa4e689a7f86dc7485a348b7613a6164ad9e4e449ff5965f3f42e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81bbe6eba58aa4e689a7f86dc7485a348b7613a6164ad9e4e449ff5965f3f42e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling coalescing_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "81bbe6eba58aa4e689a7f86dc7485a348b7613a6164ad9e4e449ff5965f3f42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bbe6eba58aa4e689a7f86dc7485a348b7613a6164ad9e4e449ff5965f3f42e", kill_on_drop: false }`
[INFO] [stdout] 81bbe6eba58aa4e689a7f86dc7485a348b7613a6164ad9e4e449ff5965f3f42e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fcabc20afe4e15dee51d4257ec6ab42cf425c0f1fd5d1c9f47100bf2934f2d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0fcabc20afe4e15dee51d4257ec6ab42cf425c0f1fd5d1c9f47100bf2934f2d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling coalescing_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "0fcabc20afe4e15dee51d4257ec6ab42cf425c0f1fd5d1c9f47100bf2934f2d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fcabc20afe4e15dee51d4257ec6ab42cf425c0f1fd5d1c9f47100bf2934f2d2", kill_on_drop: false }`
[INFO] [stdout] 0fcabc20afe4e15dee51d4257ec6ab42cf425c0f1fd5d1c9f47100bf2934f2d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06b310ca3791e7dc41267a1a14926a2c8fe2c6779b509f6c7fc559a8dc00f4c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06b310ca3791e7dc41267a1a14926a2c8fe2c6779b509f6c7fc559a8dc00f4c1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/coalescing_buffer-45e695529ef869dd
[INFO] [stdout] running 14 tests
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_correctly_report_size ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_accept_existing_keys_when_full ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_not_update_values_if_read_occurs_between_values ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_count_rejections ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_not_update_values_without_keys ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_correctly_increase_the_capacity_to_the_next_higher_power_of_two ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_return_all_items_without_request_limit ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_reject_new_keys_when_full ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_use_object_equality_to_compare_keys ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_update_values_with_equal_keys ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_return_two_values_with_different_keys ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_return_single_value ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_return_only_the_maximum_number_of_requested_items ... ok
[INFO] [stdout] test ring::spsc_coalescing_ring_buffer::tests::should_update_values_with_equal_keys_and_preserve_ordering ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests coalescing_buffer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ring (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "06b310ca3791e7dc41267a1a14926a2c8fe2c6779b509f6c7fc559a8dc00f4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b310ca3791e7dc41267a1a14926a2c8fe2c6779b509f6c7fc559a8dc00f4c1", kill_on_drop: false }`
[INFO] [stdout] 06b310ca3791e7dc41267a1a14926a2c8fe2c6779b509f6c7fc559a8dc00f4c1