[INFO] fetching crate uring-sys 0.7.4...
[INFO] testing uring-sys-0.7.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate uring-sys 0.7.4 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate uring-sys 0.7.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uring-sys 0.7.4
[INFO] finished tweaking crates.io crate uring-sys 0.7.4
[INFO] tweaked toml for crates.io crate uring-sys 0.7.4 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34059514be678134d960c1026cd8ba0f22db4f0158b6414b2b2196ddb6f1e497
[INFO] running `Command { std: "docker" "start" "-a" "34059514be678134d960c1026cd8ba0f22db4f0158b6414b2b2196ddb6f1e497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34059514be678134d960c1026cd8ba0f22db4f0158b6414b2b2196ddb6f1e497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34059514be678134d960c1026cd8ba0f22db4f0158b6414b2b2196ddb6f1e497", kill_on_drop: false }`
[INFO] [stdout] 34059514be678134d960c1026cd8ba0f22db4f0158b6414b2b2196ddb6f1e497
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fff1f5dbe9b94530af5499154f22a470ab6c52c394ea8fbeb7c93ac81b9ad37c
[INFO] running `Command { std: "docker" "start" "-a" "fff1f5dbe9b94530af5499154f22a470ab6c52c394ea8fbeb7c93ac81b9ad37c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling uring-sys v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "fff1f5dbe9b94530af5499154f22a470ab6c52c394ea8fbeb7c93ac81b9ad37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff1f5dbe9b94530af5499154f22a470ab6c52c394ea8fbeb7c93ac81b9ad37c", kill_on_drop: false }`
[INFO] [stdout] fff1f5dbe9b94530af5499154f22a470ab6c52c394ea8fbeb7c93ac81b9ad37c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e85fbb407173be234f6c0a6852899757dfe36494fe841b3bf799e77f310b7137
[INFO] running `Command { std: "docker" "start" "-a" "e85fbb407173be234f6c0a6852899757dfe36494fe841b3bf799e77f310b7137", kill_on_drop: false }`
[INFO] [stderr]    Compiling uring-sys v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "e85fbb407173be234f6c0a6852899757dfe36494fe841b3bf799e77f310b7137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85fbb407173be234f6c0a6852899757dfe36494fe841b3bf799e77f310b7137", kill_on_drop: false }`
[INFO] [stdout] e85fbb407173be234f6c0a6852899757dfe36494fe841b3bf799e77f310b7137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 422b75a9cc313d79356d63b9e84e9a3f72078967ddf36b507ec3212307c89b87
[INFO] running `Command { std: "docker" "start" "-a" "422b75a9cc313d79356d63b9e84e9a3f72078967ddf36b507ec3212307c89b87", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/uring_sys-1d95459a4ccb667a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests uring-sys
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "422b75a9cc313d79356d63b9e84e9a3f72078967ddf36b507ec3212307c89b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422b75a9cc313d79356d63b9e84e9a3f72078967ddf36b507ec3212307c89b87", kill_on_drop: false }`
[INFO] [stdout] 422b75a9cc313d79356d63b9e84e9a3f72078967ddf36b507ec3212307c89b87