[INFO] fetching crate ringbuffer 0.4.0...
[INFO] testing ringbuffer-0.4.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate ringbuffer 0.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ringbuffer 0.4.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringbuffer 0.4.0
[INFO] finished tweaking crates.io crate ringbuffer 0.4.0
[INFO] tweaked toml for crates.io crate ringbuffer 0.4.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init v1.0.0
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] [stderr]   Downloaded criterion v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 271bd3fbf52e7595659e015afc1258e668c2831add6a2c9d1bf1fda35e7aab91
[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" "271bd3fbf52e7595659e015afc1258e668c2831add6a2c9d1bf1fda35e7aab91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "271bd3fbf52e7595659e015afc1258e668c2831add6a2c9d1bf1fda35e7aab91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271bd3fbf52e7595659e015afc1258e668c2831add6a2c9d1bf1fda35e7aab91", kill_on_drop: false }`
[INFO] [stdout] 271bd3fbf52e7595659e015afc1258e668c2831add6a2c9d1bf1fda35e7aab91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e94e48607f7894dfb1b88921e7ca0815575fd284b683d61d1354450965859758
[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" "e94e48607f7894dfb1b88921e7ca0815575fd284b683d61d1354450965859758", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "e94e48607f7894dfb1b88921e7ca0815575fd284b683d61d1354450965859758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94e48607f7894dfb1b88921e7ca0815575fd284b683d61d1354450965859758", kill_on_drop: false }`
[INFO] [stdout] e94e48607f7894dfb1b88921e7ca0815575fd284b683d61d1354450965859758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d14eb443179660a47bdae5f73ebe5177766987544d7ffb3db32ec86313f5788
[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" "8d14eb443179660a47bdae5f73ebe5177766987544d7ffb3db32ec86313f5788", kill_on_drop: false }`
[INFO] [stderr]    Compiling cast v0.1.0
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling simplelog v0.4.4
[INFO] [stderr]    Compiling criterion-stats v0.1.3
[INFO] [stderr]    Compiling criterion-plot v0.1.3
[INFO] [stderr]    Compiling criterion v0.1.2
[INFO] [stderr]    Compiling ringbuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.47s
[INFO] running `Command { std: "docker" "inspect" "8d14eb443179660a47bdae5f73ebe5177766987544d7ffb3db32ec86313f5788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d14eb443179660a47bdae5f73ebe5177766987544d7ffb3db32ec86313f5788", kill_on_drop: false }`
[INFO] [stdout] 8d14eb443179660a47bdae5f73ebe5177766987544d7ffb3db32ec86313f5788
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc6e231e884de133017f5107798e4764ca859e3a15bb687f9cc608b46f22e485
[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" "bc6e231e884de133017f5107798e4764ca859e3a15bb687f9cc608b46f22e485", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ringbuffer-16605c0ca6d7a51e
[INFO] [stdout] running 55 tests
[INFO] [stdout] test tests::run_test_clear ... ok
[INFO] [stdout] test tests::run_test_front_none ... ok
[INFO] [stdout] test tests::run_test_front_none_mut ... ok
[INFO] [stdout] test tests::run_test_back_some ... ok
[INFO] [stdout] test tests::run_test_back_some_mut ... ok
[INFO] [stdout] test tests::run_test_get_absolute ... ok
[INFO] [stdout] test tests::run_test_front_some_mut ... ok
[INFO] [stdout] test tests::run_test_get_relative_mut_zero_length ... ok
[INFO] [stdout] test tests::run_test_get_relative_mut ... ok
[INFO] [stdout] test tests::run_test_front_some ... ok
[INFO] [stdout] test tests::run_test_index ... ok
[INFO] [stdout] test tests::run_test_get_relative_zero_length ... ok
[INFO] [stdout] test tests::run_test_default ... ok
[INFO] [stdout] test tests::run_test_contains ... ok
[INFO] [stdout] test tests::run_test_empty ... ok
[INFO] [stdout] test tests::run_test_index_mut ... ok
[INFO] [stdout] test tests::run_test_get_relative_negative ... ok
[INFO] [stdout] test tests::run_test_double_iter ... ok
[INFO] [stdout] test tests::run_test_dequeue ... ok
[INFO] [stdout] test tests::run_test_dequeue_ref ... ok
[INFO] [stdout] test tests::run_test_get_relative ... ok
[INFO] [stdout] test tests::run_test_back_none ... ok
[INFO] [stdout] test tests::run_test_iter ... ok
[INFO] [stdout] test tests::run_test_back_none_mut ... ok
[INFO] [stdout] test tests::run_test_iter_mut_wrap ... ok
[INFO] [stdout] test tests::run_test_from_iterator ... ok
[INFO] [stdout] test tests::run_test_iter_mut ... ok
[INFO] [stdout] test tests::run_test_from_iterator_wrap ... ok
[INFO] [stdout] test tests::run_test_skip ... ok
[INFO] [stdout] test tests::run_test_to_vec ... ok
[INFO] [stdout] test tests::run_test_peek_some ... ok
[INFO] [stdout] test tests::run_test_len ... ok
[INFO] [stdout] test tests::run_test_peek_none ... ok
[INFO] [stdout] test tests::run_test_iter_wrap ... ok
[INFO] [stdout] test tests::run_test_push_pop_push_full_get ... ok
[INFO] [stdout] test tests::run_test_push_pop_push_full ... ok
[INFO] [stdout] test tests::run_test_new ... ok
[INFO] [stdout] test tests::run_test_len_wrap ... ok
[INFO] [stdout] test tests::run_test_is_full ... ok
[INFO] [stdout] test tests::test_dropping::run_test_drops_contents_alloc ... ok
[INFO] [stdout] test with_alloc::tests::test_with_capacity_power_of_two ... ok
[INFO] [stdout] test tests::test_dropping::run_test_drops_contents_generic ... ok
[INFO] [stdout] test with_alloc::tests::test_default_capacity_constant ... ok
[INFO] [stdout] test tests::run_test_wrapping_get_relative ... ok
[INFO] [stdout] test tests::run_test_push_pop_push ... ok
[INFO] [stdout] test tests::run_test_to_vec_wrap ... ok
[INFO] [stdout] test tests::run_test_wrapping_get_relative_mut ... ok
[INFO] [stdout] test with_alloc::tests::test_default ... ok
[INFO] [stdout] test tests::test_default_eq_new ... ok
[INFO] [stdout] test with_generic_array::tests::test_index_zero_length ... ok
[INFO] [stdout] test with_alloc::tests::test_index_zero_length ... ok
[INFO] [stdout] test with_alloc::tests::test_with_capacity_no_power_of_two ... ok
[INFO] [stdout] test with_generic_array::tests::test_with_capacity_no_power_of_two ... ok
[INFO] [stdout] test with_generic_array::tests::test_no_empty ... ok
[INFO] [stderr]    Doc-tests ringbuffer
[INFO] [stdout] test tests::run_test_push_pop_push_full_get_rep ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/with_alloc.rs - with_alloc::AllocRingBuffer (line 15) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/with_generic_array.rs - with_generic_array::GenericRingBuffer (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc6e231e884de133017f5107798e4764ca859e3a15bb687f9cc608b46f22e485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6e231e884de133017f5107798e4764ca859e3a15bb687f9cc608b46f22e485", kill_on_drop: false }`
[INFO] [stdout] bc6e231e884de133017f5107798e4764ca859e3a15bb687f9cc608b46f22e485