[INFO] fetching crate ringtail 0.3.0...
[INFO] testing ringtail-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ringtail 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ringtail 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringtail 0.3.0
[INFO] finished tweaking crates.io crate ringtail 0.3.0
[INFO] tweaked toml for crates.io crate ringtail 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42f56c843c5f200dbf978a294b1ac961d0cfbe05d12b83e07148d724f597cbdc
[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" "42f56c843c5f200dbf978a294b1ac961d0cfbe05d12b83e07148d724f597cbdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f56c843c5f200dbf978a294b1ac961d0cfbe05d12b83e07148d724f597cbdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f56c843c5f200dbf978a294b1ac961d0cfbe05d12b83e07148d724f597cbdc", kill_on_drop: false }`
[INFO] [stdout] 42f56c843c5f200dbf978a294b1ac961d0cfbe05d12b83e07148d724f597cbdc
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c37b27e42482e58d16ae943f508e8f02f2bc04c2951f576559eb1e93b16212c
[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" "3c37b27e42482e58d16ae943f508e8f02f2bc04c2951f576559eb1e93b16212c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringtail v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "3c37b27e42482e58d16ae943f508e8f02f2bc04c2951f576559eb1e93b16212c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c37b27e42482e58d16ae943f508e8f02f2bc04c2951f576559eb1e93b16212c", kill_on_drop: false }`
[INFO] [stdout] 3c37b27e42482e58d16ae943f508e8f02f2bc04c2951f576559eb1e93b16212c
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c1c3b1ca09e08d26b3cd0542fcb080761d2be06f0b004b594fd2715d365c302
[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" "1c1c3b1ca09e08d26b3cd0542fcb080761d2be06f0b004b594fd2715d365c302", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling ringtail v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 46.59s
[INFO] running `Command { std: "docker" "inspect" "1c1c3b1ca09e08d26b3cd0542fcb080761d2be06f0b004b594fd2715d365c302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1c3b1ca09e08d26b3cd0542fcb080761d2be06f0b004b594fd2715d365c302", kill_on_drop: false }`
[INFO] [stdout] 1c1c3b1ca09e08d26b3cd0542fcb080761d2be06f0b004b594fd2715d365c302
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c912fc640a9a0f0b9c5b72ce7927eb06a353a0afcd68d13ab94b17f078f7604
[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" "6c912fc640a9a0f0b9c5b72ce7927eb06a353a0afcd68d13ab94b17f078f7604", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ringtail-513642929e1a3b75)
[INFO] [stdout] running 24 tests
[INFO] [stdout] test buffers::unbounded::tests::test_capacity ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push ... ok
[INFO] [stdout] test buffers::atomic::tests::test_pull_more_than_buffer ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push_and_consume ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_capacity ... ok
[INFO] [stdout] test internal::arrays::tests::copy_from_seq_with_less_elements ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_more_than_buffer ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_pull_more_than_buffer ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push_a_lot ... ok
[INFO] [stdout] test io::tests::read_from_closed_pipe_returns_zero ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_pull_less_than_buffer ... ok
[INFO] [stdout] test internal::arrays::tests::copy_to_seq_with_less_elements ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push ... ok
[INFO] [stdout] test internal::arrays::tests::copy_to_seq_with_more_elements ... ok
[INFO] [stdout] test io::tests::read_nonblocking ... ok
[INFO] [stdout] test io::tests::read_write ... ok
[INFO] [stdout] test internal::arrays::tests::copy_from_seq_with_more_elements ... ok
[INFO] [stdout] test io::tests::write_nonblocking ... ok
[INFO] [stdout] test io::tests::write_to_closed_pipe_returns_broken_pipe ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_force_resize ... ok
[INFO] [stdout] test buffers::atomic::tests::test_pull_less_than_buffer ... ok
[INFO] [stdout] test buffers::atomic::tests::test_capacity ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_and_consume ... ok
[INFO] [stderr]    Doc-tests ringtail
[INFO] [stdout] test io::tests::read_empty_blocking ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c912fc640a9a0f0b9c5b72ce7927eb06a353a0afcd68d13ab94b17f078f7604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c912fc640a9a0f0b9c5b72ce7927eb06a353a0afcd68d13ab94b17f078f7604", kill_on_drop: false }`
[INFO] [stdout] 6c912fc640a9a0f0b9c5b72ce7927eb06a353a0afcd68d13ab94b17f078f7604