[INFO] cloning repository https://github.com/kognise/arpchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kognise/arpchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkognise%2Farpchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkognise%2Farpchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b05ce1f5deb0e83a76d93d540463cb45ca00711
[INFO] testing kognise/arpchat against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkognise%2Farpchat" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kognise/arpchat on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-16/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/kognise/arpchat
[INFO] finished tweaking git repo https://github.com/kognise/arpchat
[INFO] tweaked toml for git repo https://github.com/kognise/arpchat written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/kognise/arpchat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9365dd68f3b0730c1960d4b13eb2b12223dbdab9d2fcc0fa2a345f0b311332ca
[INFO] running `Command { std: "docker" "start" "-a" "9365dd68f3b0730c1960d4b13eb2b12223dbdab9d2fcc0fa2a345f0b311332ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9365dd68f3b0730c1960d4b13eb2b12223dbdab9d2fcc0fa2a345f0b311332ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9365dd68f3b0730c1960d4b13eb2b12223dbdab9d2fcc0fa2a345f0b311332ca", kill_on_drop: false }`
[INFO] [stdout] 9365dd68f3b0730c1960d4b13eb2b12223dbdab9d2fcc0fa2a345f0b311332ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dff004398675e85c39aa291d61bf89e1682e808f5319a50387b26f7c572fc1ea
[INFO] running `Command { std: "docker" "start" "-a" "dff004398675e85c39aa291d61bf89e1682e808f5319a50387b26f7c572fc1ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling pnet_base v0.29.0
[INFO] [stderr]    Compiling num_threads v0.1.5
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling pnet v0.29.0
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling smaz v0.1.0
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling pnet_macros_support v0.29.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling pnet_sys v0.29.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling directories v4.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crossterm v0.22.1
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling pnet_macros v0.29.0
[INFO] [stderr]    Compiling enum-map-derive v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling enum-map v2.0.3
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling enumset_derive v0.5.5
[INFO] [stderr]    Compiling pnet_packet v0.29.0
[INFO] [stderr]    Compiling enumset v1.0.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling pnet_transport v0.29.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling ipnetwork v0.18.0
[INFO] [stderr]    Compiling pnet_datalink v0.29.0
[INFO] [stderr]    Compiling cursive_core v0.3.1
[INFO] [stderr]    Compiling cursive v0.17.0
[INFO] [stderr]    Compiling arpchat v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(derive_default_enum)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arpchat` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dff004398675e85c39aa291d61bf89e1682e808f5319a50387b26f7c572fc1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dff004398675e85c39aa291d61bf89e1682e808f5319a50387b26f7c572fc1ea", kill_on_drop: false }`
[INFO] [stdout] dff004398675e85c39aa291d61bf89e1682e808f5319a50387b26f7c572fc1ea