[INFO] fetching crate ein-ffi 0.6.0...
[INFO] testing ein-ffi-0.6.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate ein-ffi 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ein-ffi 0.6.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ein-ffi 0.6.0
[INFO] finished tweaking crates.io crate ein-ffi 0.6.0
[INFO] tweaked toml for crates.io crate ein-ffi 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4877d19b69a8eadea42afe5f930b28bca8f017c35dc8ba05335aa8b072916232
[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" "4877d19b69a8eadea42afe5f930b28bca8f017c35dc8ba05335aa8b072916232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4877d19b69a8eadea42afe5f930b28bca8f017c35dc8ba05335aa8b072916232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4877d19b69a8eadea42afe5f930b28bca8f017c35dc8ba05335aa8b072916232", kill_on_drop: false }`
[INFO] [stdout] 4877d19b69a8eadea42afe5f930b28bca8f017c35dc8ba05335aa8b072916232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 1a98171b1b85c9b2f59de727eee1b422bcd21d57ce270f85e172c5be99080bf1
[INFO] running `Command { std: "docker" "start" "-a" "1a98171b1b85c9b2f59de727eee1b422bcd21d57ce270f85e172c5be99080bf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ein-ffi v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "1a98171b1b85c9b2f59de727eee1b422bcd21d57ce270f85e172c5be99080bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a98171b1b85c9b2f59de727eee1b422bcd21d57ce270f85e172c5be99080bf1", kill_on_drop: false }`
[INFO] [stdout] 1a98171b1b85c9b2f59de727eee1b422bcd21d57ce270f85e172c5be99080bf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20011e736a39af3395fffdec263dbdbc186a2517c8eacd00158401b81f5739f4
[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" "20011e736a39af3395fffdec263dbdbc186a2517c8eacd00158401b81f5739f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ein-ffi v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/arc/arc_buffer.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         ArcBuffer::from(vec![0u8; 42].as_slice());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/arc/arc_buffer.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         ArcBuffer::from("hello".as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "20011e736a39af3395fffdec263dbdbc186a2517c8eacd00158401b81f5739f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20011e736a39af3395fffdec263dbdbc186a2517c8eacd00158401b81f5739f4", kill_on_drop: false }`
[INFO] [stdout] 20011e736a39af3395fffdec263dbdbc186a2517c8eacd00158401b81f5739f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] bacde4f4dcba1dce9b406b2a8c8b50421acd7c5d5abf7c27df293577819820df
[INFO] running `Command { std: "docker" "start" "-a" "bacde4f4dcba1dce9b406b2a8c8b50421acd7c5d5abf7c27df293577819820df", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stdout] running 24 tests
[INFO] [stderr]    --> src/arc/arc_buffer.rs:114:9
[INFO] [stdout] test arc::arc_block::tests::create ... ok
[INFO] [stderr]     |
[INFO] [stderr] 114 |         ArcBuffer::from(vec![0u8; 42].as_slice());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/arc/arc_buffer.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |         ArcBuffer::from("hello".as_bytes());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ein-ffi` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ein_ffi-c0bf546a8ce33997)
[INFO] [stdout] test arc::arc_block::tests::clone ... ok
[INFO] [stdout] test arc::tests::zero_sized::clone ... ok
[INFO] [stdout] test arc::arc_block::tests::create_null ... ok
[INFO] [stdout] test arc::tests::clone ... ok
[INFO] [stdout] test arc::arc_buffer::tests::create_zero_sized_buffer ... ok
[INFO] [stdout] test arc::arc_buffer::tests::create_buffer ... ok
[INFO] [stdout] test arc::tests::zero_sized::create ... ok
[INFO] [stdout] test arc::arc_buffer::tests::clone ... ok
[INFO] [stdout] test arc::tests::create ... ok
[INFO] [stdout] test arc::tests::load_payload ... ok
[INFO] [stdout] test arc::arc_block::tests::drop ... ok
[INFO] [stdout] test arc::arc_block::tests::drop_twice ... ok
[INFO] [stdout] test arc::tests::zero_sized::load_payload ... ok
[INFO] [stdout] test string::tests::join ... ok
[INFO] [stdout] test arc::arc_buffer::tests::convert_from_string ... ok
[INFO] [stdout] test string::tests::slice_into_whole ... ok
[INFO] [stdout] test string::tests::slice_with_emojis ... ok
[INFO] [stdout] test string::tests::slice_last_with_emojis ... ok
[INFO] [stdout] test string::tests::slice_with_negative_index ... ok
[INFO] [stdout] test arc::arc_buffer::tests::convert_from_vec ... ok
[INFO] [stdout] test string::tests::join_empty ... ok
[INFO] [stdout] test string::tests::slice_with_ascii ... ok
[INFO] [stderr]    Doc-tests ein-ffi
[INFO] [stdout] test string::tests::slice_into_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "bacde4f4dcba1dce9b406b2a8c8b50421acd7c5d5abf7c27df293577819820df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacde4f4dcba1dce9b406b2a8c8b50421acd7c5d5abf7c27df293577819820df", kill_on_drop: false }`
[INFO] [stdout] bacde4f4dcba1dce9b406b2a8c8b50421acd7c5d5abf7c27df293577819820df