[INFO] fetching crate voronoiify-image 1.0.2...
[INFO] testing voronoiify-image-1.0.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate voronoiify-image 1.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate voronoiify-image 1.0.2 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 voronoiify-image 1.0.2
[INFO] disabled cargo feature 'default-run' from crates.io crate voronoiify-image 1.0.2
[INFO] finished tweaking crates.io crate voronoiify-image 1.0.2
[INFO] tweaked toml for crates.io crate voronoiify-image 1.0.2 written to /workspace/builds/worker-3/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] warning: the cargo feature `profile-overrides` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr] warning: unused manifest key: profile.dev.overrides
[INFO] [stderr] warning: unused manifest key: profile.release.overrides
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 38edbba645d4f913dabe5d0fcf056254b7c254edb81211b681fd887d34c1ede4
[INFO] running `"docker" "start" "-a" "38edbba645d4f913dabe5d0fcf056254b7c254edb81211b681fd887d34c1ede4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: the cargo feature `profile-overrides` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr] warning: unused manifest key: profile.dev.overrides
[INFO] [stderr] warning: unused manifest key: profile.release.overrides
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling scopeguard v0.1.2
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling variance v0.1.3
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling num_cpus v1.0.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling scoped-pool v1.0.0
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.11
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling voronoiify-image v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/voronoi.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/voronoi.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/voronoi.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/voronoi.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(duration_as_u128)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/norms.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | /// Pseudo-distance is not a valid norm, but rather a value with the only guarantees
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/norms.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | /// that is has the exact same partial order as the real norm ([Dist]) and is non-negative.
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `voronoiify-image`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "38edbba645d4f913dabe5d0fcf056254b7c254edb81211b681fd887d34c1ede4"`
[INFO] running `"docker" "rm" "-f" "38edbba645d4f913dabe5d0fcf056254b7c254edb81211b681fd887d34c1ede4"`
[INFO] [stdout] 38edbba645d4f913dabe5d0fcf056254b7c254edb81211b681fd887d34c1ede4