[INFO] fetching crate ringbuf 0.2.6...
[INFO] testing ringbuf-0.2.6 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate ringbuf 0.2.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ringbuf 0.2.6 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-7/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", 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] cf3ac065aa03e01d9f266175f323eeac4a63192e882f7a60d520d84c66f5d944
[INFO] running `Command { std: "docker" "start" "-a" "cf3ac065aa03e01d9f266175f323eeac4a63192e882f7a60d520d84c66f5d944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3ac065aa03e01d9f266175f323eeac4a63192e882f7a60d520d84c66f5d944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3ac065aa03e01d9f266175f323eeac4a63192e882f7a60d520d84c66f5d944", kill_on_drop: false }`
[INFO] [stdout] cf3ac065aa03e01d9f266175f323eeac4a63192e882f7a60d520d84c66f5d944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 95b1a786f69fd4084fafb09f0d5b520adf64ce5b502f8529ab427d21d2bc0473
[INFO] running `Command { std: "docker" "start" "-a" "95b1a786f69fd4084fafb09f0d5b520adf64ce5b502f8529ab427d21d2bc0473", kill_on_drop: false }`
[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" "95b1a786f69fd4084fafb09f0d5b520adf64ce5b502f8529ab427d21d2bc0473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b1a786f69fd4084fafb09f0d5b520adf64ce5b502f8529ab427d21d2bc0473", kill_on_drop: false }`
[INFO] [stdout] 95b1a786f69fd4084fafb09f0d5b520adf64ce5b502f8529ab427d21d2bc0473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d87442f60053cb0c2779d60c5383468efa07280f660e90d631e973f85aea570
[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" "5d87442f60053cb0c2779d60c5383468efa07280f660e90d631e973f85aea570", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuf v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.10s
[INFO] running `Command { std: "docker" "inspect" "5d87442f60053cb0c2779d60c5383468efa07280f660e90d631e973f85aea570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d87442f60053cb0c2779d60c5383468efa07280f660e90d631e973f85aea570", kill_on_drop: false }`
[INFO] [stdout] 5d87442f60053cb0c2779d60c5383468efa07280f660e90d631e973f85aea570
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 560c412824ee4157e48baef8d30cb0c77a699308f12fe65b74386437d4a145f6
[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" "560c412824ee4157e48baef8d30cb0c77a699308f12fe65b74386437d4a145f6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ringbuf-a0f96c5db265ec15)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test tests::access::discard ... ok
[INFO] [stdout] test tests::access::pop_full ... ok
[INFO] [stdout] test tests::access::pop_return ... ok
[INFO] [stdout] test tests::access::push ... ok
[INFO] [stdout] test tests::drop::multiple_each ... ok
[INFO] [stdout] test tests::drop::pop_each_test1 ... ok
[INFO] [stdout] test tests::drop::pop_each_test2 ... ok
[INFO] [stdout] test tests::drop::push_each_test1 ... ok
[INFO] [stdout] test tests::drop::push_each_test2 ... ok
[INFO] [stdout] test tests::drop::single ... ok
[INFO] [stdout] test tests::access::push_pop ... ok
[INFO] [stdout] test tests::access::push_return ... ok
[INFO] [stdout] test tests::access::discard_drop ... ok
[INFO] [stdout] test tests::access::pop ... ok
[INFO] [stdout] test tests::access::pop_empty ... ok
[INFO] [stdout] test tests::multiple::move_slice_count ... ok
[INFO] [stdout] test tests::multiple::for_each ... ok
[INFO] [stdout] test tests::multiple::push_pop_slice ... ok
[INFO] [stdout] test tests::read_write::count ... ok
[INFO] [stdout] test tests::read_write::from ... ok
[INFO] [stdout] test tests::single::empty_full ... 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::len_remaining ... ok
[INFO] [stdout] test tests::single::split_threads ... ok
[INFO] [stdout] test tests::multiple::pop_each ... ok
[INFO] [stdout] test tests::single::capacity ... ok
[INFO] [stdout] test tests::multiple::for_each_mut ... ok
[INFO] [stdout] test tests::single::split_capacity ... ok
[INFO] [stdout] test tests::multiple::move_slice ... ok
[INFO] [stdout] test tests::read_write::into ... ok
[INFO] [stdout] test tests::message::push_pop_slice ... ok
[INFO] [stdout] test tests::message::read_write ... ok
[INFO] [stdout] test tests::message::read_from_write_into ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ringbuf
[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 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "560c412824ee4157e48baef8d30cb0c77a699308f12fe65b74386437d4a145f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "560c412824ee4157e48baef8d30cb0c77a699308f12fe65b74386437d4a145f6", kill_on_drop: false }`
[INFO] [stdout] 560c412824ee4157e48baef8d30cb0c77a699308f12fe65b74386437d4a145f6