[INFO] cloning repository https://github.com/timstr/ringbuffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timstr/ringbuffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimstr%2Fringbuffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimstr%2Fringbuffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8092a6c259aaaf6dcbbbf1b979bf85575adf5ef7
[INFO] testing timstr/ringbuffer against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimstr%2Fringbuffer" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timstr/ringbuffer on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timstr/ringbuffer
[INFO] finished tweaking git repo https://github.com/timstr/ringbuffer
[INFO] tweaked toml for git repo https://github.com/timstr/ringbuffer written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/timstr/ringbuffer 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caa7aa5a9ec0c0737369e07313c7ed17abf3ab1c71583ae250336c1386745b8b
[INFO] running `Command { std: "docker" "start" "-a" "caa7aa5a9ec0c0737369e07313c7ed17abf3ab1c71583ae250336c1386745b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caa7aa5a9ec0c0737369e07313c7ed17abf3ab1c71583ae250336c1386745b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa7aa5a9ec0c0737369e07313c7ed17abf3ab1c71583ae250336c1386745b8b", kill_on_drop: false }`
[INFO] [stdout] caa7aa5a9ec0c0737369e07313c7ed17abf3ab1c71583ae250336c1386745b8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6c17c79d9ec87d43b34ea8196a95df67ef1eb505b2b28cf3e29688d0b427efc
[INFO] running `Command { std: "docker" "start" "-a" "e6c17c79d9ec87d43b34ea8196a95df67ef1eb505b2b28cf3e29688d0b427efc", kill_on_drop: false }`
[INFO] [stderr]    Compiling spmcq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "e6c17c79d9ec87d43b34ea8196a95df67ef1eb505b2b28cf3e29688d0b427efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c17c79d9ec87d43b34ea8196a95df67ef1eb505b2b28cf3e29688d0b427efc", kill_on_drop: false }`
[INFO] [stdout] e6c17c79d9ec87d43b34ea8196a95df67ef1eb505b2b28cf3e29688d0b427efc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 316ffe285908fab467c125c8dd2ac7301d354930fd0c4666ee3940ac05546357
[INFO] running `Command { std: "docker" "start" "-a" "316ffe285908fab467c125c8dd2ac7301d354930fd0c4666ee3940ac05546357", kill_on_drop: false }`
[INFO] [stderr]    Compiling spmcq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "316ffe285908fab467c125c8dd2ac7301d354930fd0c4666ee3940ac05546357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316ffe285908fab467c125c8dd2ac7301d354930fd0c4666ee3940ac05546357", kill_on_drop: false }`
[INFO] [stdout] 316ffe285908fab467c125c8dd2ac7301d354930fd0c4666ee3940ac05546357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37c6561121ef7eb5fb2e56d3ff4ff50002bf01aa22966519e659575dc0b7adf9
[INFO] running `Command { std: "docker" "start" "-a" "37c6561121ef7eb5fb2e56d3ff4ff50002bf01aa22966519e659575dc0b7adf9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/spmcq-f6955c671d93b631)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test test::test_basic_use_one_thread ... ok
[INFO] [stdout] test test::test_custom_data_type_one_thread ... ok
[INFO] [stdout] test test::test_skip_ahead_basic_one_thread ... ok
[INFO] [stdout] test test::test_wraparound_keeping_pace_one_thread ... ok
[INFO] [stdout] test test::test_two_readers_one_thread ... ok
[INFO] [stdout] test test::test_dropouts_lapped_once_one_thread ... ok
[INFO] [stdout] test test::test_dropouts_lapped_twice_one_thread ... ok
[INFO] [stdout] test test::test_skip_ahead_lapped_one_thread ... ok
[INFO] [stdout] test test::test_two_readers_three_threads ... ok
[INFO] [stdout] test test::test_one_reader_two_threads ... ok
[INFO] [stdout] test test::test_one_reader_two_threads_high_throughput ... ok
[INFO] [stdout] test test::test_two_readers_three_threads_high_throughput ... ok
[INFO] [stdout] test test::test_custom_data_type_one_reader_two_threads_high_throughput ... ok
[INFO] [stdout] test test::test_custom_data_type_two_readers_three_threads_high_throughput ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 26.79s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests spmcq
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "37c6561121ef7eb5fb2e56d3ff4ff50002bf01aa22966519e659575dc0b7adf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c6561121ef7eb5fb2e56d3ff4ff50002bf01aa22966519e659575dc0b7adf9", kill_on_drop: false }`
[INFO] [stdout] 37c6561121ef7eb5fb2e56d3ff4ff50002bf01aa22966519e659575dc0b7adf9