[INFO] crate liburing-sys 0.1.2 is already in cache
[INFO] checking liburing-sys-0.1.2 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate liburing-sys 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate liburing-sys 0.1.2 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate liburing-sys 0.1.2
[INFO] finished tweaking crates.io crate liburing-sys 0.1.2
[INFO] tweaked toml for crates.io crate liburing-sys 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a727c2a7a85c8173d8463334603ca618b26b33d7476b68947697688bb23c306d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a727c2a7a85c8173d8463334603ca618b26b33d7476b68947697688bb23c306d"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling liburing-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> examples/io_uring_test.rs:13:39
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut ring: io_uring = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> examples/io_uring_test.rs:30:32
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut buf = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.42s
[INFO] running `"docker" "inspect" "a727c2a7a85c8173d8463334603ca618b26b33d7476b68947697688bb23c306d"`
[INFO] running `"docker" "rm" "-f" "a727c2a7a85c8173d8463334603ca618b26b33d7476b68947697688bb23c306d"`
[INFO] [stdout] a727c2a7a85c8173d8463334603ca618b26b33d7476b68947697688bb23c306d