[INFO] crate zerodrop 0.1.4 is already in cache
[INFO] testing zerodrop-0.1.4 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate zerodrop 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zerodrop 0.1.4 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b81dc0c9f75f3a257abe43c373644d7869abf35057dd5f3d9b6eb7244ff930a8
[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" "b81dc0c9f75f3a257abe43c373644d7869abf35057dd5f3d9b6eb7244ff930a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b81dc0c9f75f3a257abe43c373644d7869abf35057dd5f3d9b6eb7244ff930a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81dc0c9f75f3a257abe43c373644d7869abf35057dd5f3d9b6eb7244ff930a8", kill_on_drop: false }`
[INFO] [stdout] b81dc0c9f75f3a257abe43c373644d7869abf35057dd5f3d9b6eb7244ff930a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f68842ebc9c3ecdef7bf23cee60e5eb4777cf31bb64c436a3ad567a847e4ca91
[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" "f68842ebc9c3ecdef7bf23cee60e5eb4777cf31bb64c436a3ad567a847e4ca91", kill_on_drop: false }`
[INFO] [stderr]    Compiling consistenttime v0.2.0
[INFO] [stderr]    Compiling zerodrop v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/zd.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |         ZeroDrop(Box::new(::std::mem::uninitialized::<T>()))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/zd.rs:69:39
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/zd.rs:82:39
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cow.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ZeroDropCow::Boxed(Box::new(::std::mem::uninitialized::<T>()))
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cow.rs:58:39
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/cow.rs:68:47
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 let mut b = Box::new(unsafe { ::std::mem::uninitialized::<T>() });
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerodrop`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f68842ebc9c3ecdef7bf23cee60e5eb4777cf31bb64c436a3ad567a847e4ca91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68842ebc9c3ecdef7bf23cee60e5eb4777cf31bb64c436a3ad567a847e4ca91", kill_on_drop: false }`
[INFO] [stdout] f68842ebc9c3ecdef7bf23cee60e5eb4777cf31bb64c436a3ad567a847e4ca91