[INFO] crate bve 0.0.1 is already in cache
[INFO] testing bve-0.0.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate bve 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bve 0.0.1 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 bve 0.0.1
[INFO] finished tweaking crates.io crate bve 0.0.1
[INFO] tweaked toml for crates.io crate bve 0.0.1 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] 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] a6ad840145a3902a964ecc18eab8f6788ed827fc8e87f7b1d030e997add77eea
[INFO] running `"docker" "start" "-a" "a6ad840145a3902a964ecc18eab8f6788ed827fc8e87f7b1d030e997add77eea"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling tinystr v0.3.2
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling fluent-syntax v0.9.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]    Compiling chardetng v0.1.9
[INFO] [stderr]    Compiling type-map v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling unic-langid-impl v0.8.0
[INFO] [stderr]    Compiling locale_config v0.3.0
[INFO] [stderr]    Compiling unic-locale-impl v0.8.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling unic-locale v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling unic-langid-macros-impl v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling unic-langid-macros v0.8.0
[INFO] [stderr]    Compiling unic-langid v0.8.0
[INFO] [stderr]    Compiling fluent-langneg v0.12.1
[INFO] [stderr]    Compiling intl-memoizer v0.3.0
[INFO] [stderr]    Compiling intl_pluralrules v6.0.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling include_dir_impl v0.5.0
[INFO] [stderr]    Compiling tracing v0.1.15
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling bve-derive v0.0.1
[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/bve-derive-0.0.1/src/lib.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | #![feature(core_panic)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling include_dir v0.5.0
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `bve-derive`.
[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" "a6ad840145a3902a964ecc18eab8f6788ed827fc8e87f7b1d030e997add77eea"`
[INFO] running `"docker" "rm" "-f" "a6ad840145a3902a964ecc18eab8f6788ed827fc8e87f7b1d030e997add77eea"`
[INFO] [stdout] a6ad840145a3902a964ecc18eab8f6788ed827fc8e87f7b1d030e997add77eea