[INFO] updating cached repository https://github.com/4hiziri/rust-netflood
[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] fed77bfa517ceaa2c4b3d2278a3e9bdf849dd218
[INFO] checking 4hiziri/rust-netflood against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4hiziri%2Frust-netflood" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4hiziri/rust-netflood on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/4hiziri/rust-netflood
[INFO] finished tweaking git repo https://github.com/4hiziri/rust-netflood
[INFO] tweaked toml for git repo https://github.com/4hiziri/rust-netflood written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/4hiziri/rust-netflood already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c37f65687d2441f37207c7b71753ba312614b6155ea28407cae7389c87f2b3c9
[INFO] running `"docker" "start" "-a" "c37f65687d2441f37207c7b71753ba312614b6155ea28407cae7389c87f2b3c9"`
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking rand_isaac v0.1.0
[INFO] [stderr]     Checking pnet_macros_support v0.21.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking pcapng v0.0.1 (https://github.com/kornholi/pcapng.git#e29f7b89)
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking pnet_sys v0.21.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking pnet_datalink v0.21.0
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking netflow v0.2.0 (https://github.com/4hiziri/rust-netflow.git#ce4f9e48)
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.21.0
[INFO] [stderr]    Compiling pnet_packet v0.21.0
[INFO] [stderr]     Checking pnet_transport v0.21.0
[INFO] [stderr]     Checking netflood 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(dbg_macro)]
[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 `netflood`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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(dbg_macro)]
[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 `netflood`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c37f65687d2441f37207c7b71753ba312614b6155ea28407cae7389c87f2b3c9"`
[INFO] running `"docker" "rm" "-f" "c37f65687d2441f37207c7b71753ba312614b6155ea28407cae7389c87f2b3c9"`
[INFO] [stdout] c37f65687d2441f37207c7b71753ba312614b6155ea28407cae7389c87f2b3c9