[INFO] fetching crate ringbuf 0.2.6...
[INFO] testing ringbuf-0.2.6 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate ringbuf 0.2.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ringbuf 0.2.6 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringbuf 0.2.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ringbuf 0.2.6
[INFO] tweaked toml for crates.io crate ringbuf 0.2.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate ringbuf 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71472f00ab0becb65f81de132510a0cf73b615b22a94645d5d0c66ed85b1f2f0
[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" "71472f00ab0becb65f81de132510a0cf73b615b22a94645d5d0c66ed85b1f2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71472f00ab0becb65f81de132510a0cf73b615b22a94645d5d0c66ed85b1f2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71472f00ab0becb65f81de132510a0cf73b615b22a94645d5d0c66ed85b1f2f0", kill_on_drop: false }`
[INFO] [stdout] 71472f00ab0becb65f81de132510a0cf73b615b22a94645d5d0c66ed85b1f2f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", 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] 5332f6f5f86017af4ffae858ca076fbd8bf38570a4743a8baf8f77c1d5976841
[INFO] running `Command { std: "docker" "start" "-a" "5332f6f5f86017af4ffae858ca076fbd8bf38570a4743a8baf8f77c1d5976841", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling ringbuf v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "5332f6f5f86017af4ffae858ca076fbd8bf38570a4743a8baf8f77c1d5976841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5332f6f5f86017af4ffae858ca076fbd8bf38570a4743a8baf8f77c1d5976841", kill_on_drop: false }`
[INFO] [stdout] 5332f6f5f86017af4ffae858ca076fbd8bf38570a4743a8baf8f77c1d5976841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7213bd009e5c2ad454c0a94b889397e8b19527a84c7935165dee0c9d520e2902
[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" "7213bd009e5c2ad454c0a94b889397e8b19527a84c7935165dee0c9d520e2902", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuf v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "7213bd009e5c2ad454c0a94b889397e8b19527a84c7935165dee0c9d520e2902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7213bd009e5c2ad454c0a94b889397e8b19527a84c7935165dee0c9d520e2902", kill_on_drop: false }`
[INFO] [stdout] 7213bd009e5c2ad454c0a94b889397e8b19527a84c7935165dee0c9d520e2902
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] 481c47a206ff3eff17258476be074a9180ee234c072dc9a151faa898470bbac8
[INFO] running `Command { std: "docker" "start" "-a" "481c47a206ff3eff17258476be074a9180ee234c072dc9a151faa898470bbac8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ringbuf-089723dcda025e3c)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test tests::access::pop ... ok
[INFO] [stdout] test tests::access::push_pop ... ok
[INFO] [stdout] test tests::access::push_return ... ok
[INFO] [stdout] test tests::drop::multiple_each ... ok
[INFO] [stdout] test tests::access::discard ... ok
[INFO] [stdout] test tests::access::push ... ok
[INFO] [stdout] test tests::access::pop_return ... ok
[INFO] [stdout] test tests::drop::push_each_test2 ... ok
[INFO] [stdout] test tests::access::pop_full ... ok
[INFO] [stdout] test tests::access::pop_empty ... ok
[INFO] [stdout] test tests::multiple::for_each ... ok
[INFO] [stdout] test tests::access::discard_drop ... ok
[INFO] [stdout] test tests::multiple::pop_each ... ok
[INFO] [stdout] test tests::multiple::push_pop_slice ... ok
[INFO] [stdout] test tests::read_write::count ... ok
[INFO] [stdout] test tests::drop::pop_each_test1 ... ok
[INFO] [stdout] test tests::read_write::into ... ok
[INFO] [stdout] test tests::read_write::from ... ok
[INFO] [stdout] test tests::drop::pop_each_test2 ... ok
[INFO] [stdout] test tests::single::capacity ... ok
[INFO] [stdout] test tests::drop::single ... ok
[INFO] [stdout] test tests::multiple::for_each_mut ... ok
[INFO] [stdout] test tests::drop::push_each_test1 ... ok
[INFO] [stdout] test tests::single::split_capacity ... ok
[INFO] [stdout] test tests::multiple::move_slice ... ok
[INFO] [stdout] test tests::multiple::move_slice_count ... ok
[INFO] [stdout] test tests::single::pop_empty ... ok
[INFO] [stdout] test tests::single::push ... ok
[INFO] [stdout] test tests::single::push_pop_all ... ok
[INFO] [stdout] test tests::single::push_pop_one ... ok
[INFO] [stdout] test tests::single::empty_full ... ok
[INFO] [stdout] test tests::single::split_threads ... ok
[INFO] [stdout] test tests::single::len_remaining ... ok
[INFO] [stdout] test tests::message::read_write ... ok
[INFO] [stdout] test tests::message::read_from_write_into ... ok
[INFO] [stderr]    Doc-tests ringbuf
[INFO] [stdout] test tests::message::push_pop_slice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "481c47a206ff3eff17258476be074a9180ee234c072dc9a151faa898470bbac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481c47a206ff3eff17258476be074a9180ee234c072dc9a151faa898470bbac8", kill_on_drop: false }`
[INFO] [stdout] 481c47a206ff3eff17258476be074a9180ee234c072dc9a151faa898470bbac8