[INFO] updating cached repository https://github.com/stallmanifold/ring-buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 425e612aeea37aeb020ccf3c03d9a66765e92ede
[INFO] testing stallmanifold/ring-buffer against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstallmanifold%2Fring-buffer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stallmanifold/ring-buffer on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stallmanifold/ring-buffer
[INFO] finished tweaking git repo https://github.com/stallmanifold/ring-buffer
[INFO] tweaked toml for git repo https://github.com/stallmanifold/ring-buffer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/stallmanifold/ring-buffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8783c7dbd1abec19952316362aea4954e24524d92606e4899b23d283b20d3b6c
[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" "8783c7dbd1abec19952316362aea4954e24524d92606e4899b23d283b20d3b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8783c7dbd1abec19952316362aea4954e24524d92606e4899b23d283b20d3b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8783c7dbd1abec19952316362aea4954e24524d92606e4899b23d283b20d3b6c", kill_on_drop: false }`
[INFO] [stdout] 8783c7dbd1abec19952316362aea4954e24524d92606e4899b23d283b20d3b6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 277e981297d9fbef1fed59996eb2e768a9787ed6142eba55879b555e8f92e4c9
[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" "277e981297d9fbef1fed59996eb2e768a9787ed6142eba55879b555e8f92e4c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring-buffer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "277e981297d9fbef1fed59996eb2e768a9787ed6142eba55879b555e8f92e4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277e981297d9fbef1fed59996eb2e768a9787ed6142eba55879b555e8f92e4c9", kill_on_drop: false }`
[INFO] [stdout] 277e981297d9fbef1fed59996eb2e768a9787ed6142eba55879b555e8f92e4c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b619d1ce1ee20ad836ca7b6eff6cb641d1c3633f41633d2678096162773ffd64
[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" "b619d1ce1ee20ad836ca7b6eff6cb641d1c3633f41633d2678096162773ffd64", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring-buffer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "b619d1ce1ee20ad836ca7b6eff6cb641d1c3633f41633d2678096162773ffd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b619d1ce1ee20ad836ca7b6eff6cb641d1c3633f41633d2678096162773ffd64", kill_on_drop: false }`
[INFO] [stdout] b619d1ce1ee20ad836ca7b6eff6cb641d1c3633f41633d2678096162773ffd64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3aad2162c17d00b3fd44eeca9ba31cbd0153be66e41623f3f0e40153a468f7ab
[INFO] running `Command { std: "docker" "start" "-a" "3aad2162c17d00b3fd44eeca9ba31cbd0153be66e41623f3f0e40153a468f7ab", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ring_buffer-355363eaf985498b
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ring_buffer-e4e4b972f0c61943
[INFO] [stdout] test rotate_tests::ring_buffer_rotate_should_unwrap_end ... ok
[INFO] [stdout] test rotate_tests::ring_buffer_rotate_should_unwrap_buffer ... ok
[INFO] [stdout] test rotate_tests::ring_buffer_successive_rotate_operations_should_leave_internal_state_unchanged ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test filled_ring_buffer_should_have_no_space_remaining ... ok
[INFO] [stdout] test ring_buffer_containing_data_should_have_length_no_larger_than_capacity ... ok
[INFO] [stdout] test ring_buffer_containing_data_should_not_be_empty ... ok
[INFO] [stdout] test ring_buffer_should_be_empty_after_clear ... ok
[INFO] [stdout] test ring_buffer_should_correctly_extract_data_after_multiple_cycles ... ok
[INFO] [stdout] test ring_buffer_should_have_capacity_equal_to_underlying_storage_size ... ok
[INFO] [stdout] test ring_buffer_string_longer_than_buffer_length_should_wrap_around ... ok
[INFO] [stdout] test ring_buffer_with_string_equal_to_length_in_bytes_should_be_full ... ok
[INFO] [stderr]    Doc-tests ring-buffer
[INFO] [stdout] test ring_buffer_extract_after_clear_should_be_empty_string ... ok
[INFO] [stdout] test empty_ring_buffer_extract_should_be_empty_slice ... ok
[INFO] [stdout] test ring_buffer_extract_after_extract_should_yield_same_string ... ok
[INFO] [stdout] test ring_buffer_extracted_string_should_match_inserted_string_of_length_at_most_the_buffer_size ... ok
[INFO] [stdout] test empty_ring_buffer_should_have_length_zero ... ok
[INFO] [stdout] test ring_buffer_should_only_contain_the_last_buffer_length_number_of_bytes_put_into_it ... ok
[INFO] [stdout] test empty_ring_buffer_should_have_maximum_space_remaining ... ok
[INFO] [stdout] test empty_ring_buffer_should_be_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3aad2162c17d00b3fd44eeca9ba31cbd0153be66e41623f3f0e40153a468f7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aad2162c17d00b3fd44eeca9ba31cbd0153be66e41623f3f0e40153a468f7ab", kill_on_drop: false }`
[INFO] [stdout] 3aad2162c17d00b3fd44eeca9ba31cbd0153be66e41623f3f0e40153a468f7ab