[INFO] fetching crate soa-vec 0.5.0...
[INFO] testing soa-vec-0.5.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate soa-vec 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate soa-vec 0.5.0 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 soa-vec 0.5.0
[INFO] finished tweaking crates.io crate soa-vec 0.5.0
[INFO] tweaked toml for crates.io crate soa-vec 0.5.0 written to /workspace/builds/worker-6/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded second-stack v0.2.1
[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=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] 0bc08467b94fd6f156b3fe17a00d22c15527c9f8a8eff5aa68206297975aca9d
[INFO] running `"docker" "start" "-a" "0bc08467b94fd6f156b3fe17a00d22c15527c9f8a8eff5aa68206297975aca9d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling second-stack v0.2.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/second-stack-0.2.1/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(allocator_api, alloc_layout_extra, ptr_offset_from)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/second-stack-0.2.1/src/lib.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let bottom = Global.alloc(layout).unwrap().as_ptr(); // TODO: There may be mitigation, like not doubling in size.
[INFO] [stderr]     |                                 ^^^^^ ------ supplied 1 argument
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_ptr` found for struct `std::alloc::MemoryBlock` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/second-stack-0.2.1/src/lib.rs:108:56
[INFO] [stderr]     |
[INFO] [stderr] 108 |             let bottom = Global.alloc(layout).unwrap().as_ptr(); // TODO: There may be mitigation, like not doubling in size.
[INFO] [stderr]     |                                                        ^^^^^^ method not found in `std::alloc::MemoryBlock`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `second-stack`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0bc08467b94fd6f156b3fe17a00d22c15527c9f8a8eff5aa68206297975aca9d"`
[INFO] running `"docker" "rm" "-f" "0bc08467b94fd6f156b3fe17a00d22c15527c9f8a8eff5aa68206297975aca9d"`
[INFO] [stdout] 0bc08467b94fd6f156b3fe17a00d22c15527c9f8a8eff5aa68206297975aca9d