[INFO] crate zerodrop 0.1.4 is already in cache
[INFO] testing zerodrop-0.1.4 against 1.44.0 for beta-1.45-1
[INFO] extracting crate zerodrop 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zerodrop 0.1.4 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate zerodrop 0.1.4
[INFO] finished tweaking crates.io crate zerodrop 0.1.4
[INFO] tweaked toml for crates.io crate zerodrop 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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-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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e589d46a759b592c287b89a1a9ce6e704018db6a911ab2eecb650f5110d9843
[INFO] running `"docker" "start" "-a" "1e589d46a759b592c287b89a1a9ce6e704018db6a911ab2eecb650f5110d9843"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling consistenttime v0.2.0
[INFO] [stderr]    Compiling zerodrop v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/zd.rs:64:27
[INFO] [stderr]    |
[INFO] [stderr] 64 |         ZeroDrop(Box::new(::std::mem::uninitialized::<T>()))
[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]   --> src/zd.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/zd.rs:82:39
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/cow.rs:47:37
[INFO] [stderr]    |
[INFO] [stderr] 47 |         ZeroDropCow::Boxed(Box::new(::std::mem::uninitialized::<T>()))
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/cow.rs:58:39
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/cow.rs:68:47
[INFO] [stderr]    |
[INFO] [stderr] 68 |                 let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `zerodrop`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1e589d46a759b592c287b89a1a9ce6e704018db6a911ab2eecb650f5110d9843"`
[INFO] running `"docker" "rm" "-f" "1e589d46a759b592c287b89a1a9ce6e704018db6a911ab2eecb650f5110d9843"`
[INFO] [stdout] 1e589d46a759b592c287b89a1a9ce6e704018db6a911ab2eecb650f5110d9843