[INFO] crate fixed-codec-derive 0.1.0 is already in cache
[INFO] testing fixed-codec-derive-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate fixed-codec-derive 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate fixed-codec-derive 0.1.0 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 crates.io crate fixed-codec-derive 0.1.0
[INFO] finished tweaking crates.io crate fixed-codec-derive 0.1.0
[INFO] tweaked toml for crates.io crate fixed-codec-derive 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d79e4e7b055abfd16d939d8a12b121fd6d1952c0caf68666bb01318dcf6b57ca
[INFO] running `Command { std: "docker" "start" "-a" "d79e4e7b055abfd16d939d8a12b121fd6d1952c0caf68666bb01318dcf6b57ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d79e4e7b055abfd16d939d8a12b121fd6d1952c0caf68666bb01318dcf6b57ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d79e4e7b055abfd16d939d8a12b121fd6d1952c0caf68666bb01318dcf6b57ca", kill_on_drop: false }`
[INFO] [stdout] d79e4e7b055abfd16d939d8a12b121fd6d1952c0caf68666bb01318dcf6b57ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c362151d74406de8f26199d2d906c1e355167e899a13d21c357f7223533b0bb
[INFO] running `Command { std: "docker" "start" "-a" "8c362151d74406de8f26199d2d906c1e355167e899a13d21c357f7223533b0bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed-codec-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "8c362151d74406de8f26199d2d906c1e355167e899a13d21c357f7223533b0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c362151d74406de8f26199d2d906c1e355167e899a13d21c357f7223533b0bb", kill_on_drop: false }`
[INFO] [stdout] 8c362151d74406de8f26199d2d906c1e355167e899a13d21c357f7223533b0bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa87822ed00583f3d8d23f0a018d0242d6965cf5b63573164602a5e38d0fd82
[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" "efa87822ed00583f3d8d23f0a018d0242d6965cf5b63573164602a5e38d0fd82", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling hashbrown v0.3.1
[INFO] [stderr]    Compiling creep v0.1.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling rlp v0.4.5
[INFO] [stderr]    Compiling fixed-hash v0.5.2
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling impl-rlp v0.2.1
[INFO] [stderr]    Compiling hasher v0.1.3
[INFO] [stderr]    Compiling fixed-hash v0.2.5
[INFO] [stderr]    Compiling uint v0.4.1
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling ethereum-types-serialize v0.2.2
[INFO] [stderr]    Compiling impl-serde v0.2.3
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling ethbloom v0.5.3
[INFO] [stderr]    Compiling ethbloom v0.8.1
[INFO] [stderr]    Compiling ethereum-types v0.4.2
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling rlp v0.3.0
[INFO] [stderr]    Compiling cita_trie v2.0.0
[INFO] [stderr]    Compiling muta-protocol v0.1.0-alpha.1
[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/muta-protocol-0.1.0-alpha.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `muta-protocol`.
[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" "efa87822ed00583f3d8d23f0a018d0242d6965cf5b63573164602a5e38d0fd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa87822ed00583f3d8d23f0a018d0242d6965cf5b63573164602a5e38d0fd82", kill_on_drop: false }`
[INFO] [stdout] efa87822ed00583f3d8d23f0a018d0242d6965cf5b63573164602a5e38d0fd82