[INFO] updating cached repository https://github.com/gburgessiv/llvmbb-monitor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4fe4d62b3347cab52486c369d0b41c77d4251fa7
[INFO] testing gburgessiv/llvmbb-monitor against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgburgessiv%2Fllvmbb-monitor" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gburgessiv/llvmbb-monitor 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 git repo https://github.com/gburgessiv/llvmbb-monitor
[INFO] finished tweaking git repo https://github.com/gburgessiv/llvmbb-monitor
[INFO] tweaked toml for git repo https://github.com/gburgessiv/llvmbb-monitor written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/gburgessiv/llvmbb-monitor already has a lockfile, it will not be regenerated
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 3a47a248081e7cbfe13f13d3f0cacc9175ae04c197e4a2af0e919928a9645c5e
[INFO] running `"docker" "start" "-a" "3a47a248081e7cbfe13f13d3f0cacc9175ae04c197e4a2af0e919928a9645c5e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling serenity v0.8.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling uwl v0.5.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.2
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling rustls v0.16.0
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling async-compression v0.3.2
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling tokio v0.2.16
[INFO] [stderr]    Compiling tungstenite v0.9.2
[INFO] [stderr]    Compiling rustls-native-certs v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-rustls v0.13.0
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling command_attr v0.2.0
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]    Compiling git-version v0.3.4
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling hyper v0.13.4
[INFO] [stderr]    Compiling rusqlite v0.21.0
[INFO] [stderr]    Compiling hyper-rustls v0.20.0
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling simple_logger v1.6.0
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling llvm_buildbot_monitor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(is_sorted)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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 `llvm_buildbot_monitor`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3a47a248081e7cbfe13f13d3f0cacc9175ae04c197e4a2af0e919928a9645c5e"`
[INFO] running `"docker" "rm" "-f" "3a47a248081e7cbfe13f13d3f0cacc9175ae04c197e4a2af0e919928a9645c5e"`
[INFO] [stdout] 3a47a248081e7cbfe13f13d3f0cacc9175ae04c197e4a2af0e919928a9645c5e