[INFO] fetching crate extra_pointers 0.1.4...
[INFO] testing extra_pointers-0.1.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate extra_pointers 0.1.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate extra_pointers 0.1.4 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate extra_pointers 0.1.4
[INFO] finished tweaking crates.io crate extra_pointers 0.1.4
[INFO] tweaked toml for crates.io crate extra_pointers 0.1.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-06-03" "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] 8d367a83456526ed9a39bbdb13d14904c0adfc62541c5e2f3dacb056158d15cc
[INFO] running `"docker" "start" "-a" "8d367a83456526ed9a39bbdb13d14904c0adfc62541c5e2f3dacb056158d15cc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling extra_pointers v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::ptr::Shared`
[INFO] [stderr]  --> src/irc.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ptr::Shared;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^ no `Shared` in `ptr`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(shared, unsize, coerce_unsized, intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures with one field being coerced, none found
[INFO] [stderr]   --> src/irc.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl<T: ?Sized + IntrusiveReferenceCounted, U: ?Sized + IntrusiveReferenceCounted> CoerceUnsized<Irc<U>> for Irc<T> where T: Unsize<U> {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0374, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0374`.
[INFO] [stderr] error: could not compile `extra_pointers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8d367a83456526ed9a39bbdb13d14904c0adfc62541c5e2f3dacb056158d15cc"`
[INFO] running `"docker" "rm" "-f" "8d367a83456526ed9a39bbdb13d14904c0adfc62541c5e2f3dacb056158d15cc"`
[INFO] [stdout] 8d367a83456526ed9a39bbdb13d14904c0adfc62541c5e2f3dacb056158d15cc