[INFO] updating cached repository https://github.com/wseaton/pongrust
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f72e04f2a33f7ed6f9790eb1f84276ed97a6b250
[INFO] testing wseaton/pongrust against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwseaton%2Fpongrust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wseaton/pongrust on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wseaton/pongrust
[INFO] finished tweaking git repo https://github.com/wseaton/pongrust
[INFO] tweaked toml for git repo https://github.com/wseaton/pongrust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wseaton/pongrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4993cdc080291ed8919c75c44b3c56ea79de22622012300f5b5847084d86c8ae
[INFO] running `Command { std: "docker" "start" "-a" "4993cdc080291ed8919c75c44b3c56ea79de22622012300f5b5847084d86c8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4993cdc080291ed8919c75c44b3c56ea79de22622012300f5b5847084d86c8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4993cdc080291ed8919c75c44b3c56ea79de22622012300f5b5847084d86c8ae", kill_on_drop: false }`
[INFO] [stdout] 4993cdc080291ed8919c75c44b3c56ea79de22622012300f5b5847084d86c8ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 884d156d290a4f47810b4441a9e9e840d2d937225b81474c2a1ab44f6537f1a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "884d156d290a4f47810b4441a9e9e840d2d937225b81474c2a1ab44f6537f1a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]    Compiling cpp_demangle v0.2.1
[INFO] [stderr]    Compiling fixedbitset v0.1.6
[INFO] [stderr]    Compiling backtrace v0.3.1
[INFO] [stderr]    Compiling state v0.2.1
[INFO] [stderr]    Compiling unidecode v0.2.0
[INFO] [stderr]    Compiling humansize v1.0.1
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling pest v0.4.1
[INFO] [stderr]    Compiling quick-error v1.2.0
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling unicode-bidi v0.2.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rocket v0.2.6
[INFO] [stderr]    Compiling rocket_codegen v0.2.6
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `state`.
[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 `Command { std: "docker" "inspect" "884d156d290a4f47810b4441a9e9e840d2d937225b81474c2a1ab44f6537f1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884d156d290a4f47810b4441a9e9e840d2d937225b81474c2a1ab44f6537f1a9", kill_on_drop: false }`
[INFO] [stdout] 884d156d290a4f47810b4441a9e9e840d2d937225b81474c2a1ab44f6537f1a9