[INFO] cloning repository https://github.com/Holo-Host/hosting-app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Holo-Host/hosting-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolo-Host%2Fhosting-app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolo-Host%2Fhosting-app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4ae12fd3ecc04d4d68001177bf9cc5c0f552911
[INFO] testing Holo-Host/hosting-app against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolo-Host%2Fhosting-app" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Holo-Host/hosting-app on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Holo-Host/hosting-app
[INFO] finished tweaking git repo https://github.com/Holo-Host/hosting-app
[INFO] tweaked toml for git repo https://github.com/Holo-Host/hosting-app written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Holo-Host/hosting-app already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02fb92c9a1172d9a51b3eb817493f884d29bccc5dbd77c574da4613f3aa73044
[INFO] running `Command { std: "docker" "start" "-a" "02fb92c9a1172d9a51b3eb817493f884d29bccc5dbd77c574da4613f3aa73044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02fb92c9a1172d9a51b3eb817493f884d29bccc5dbd77c574da4613f3aa73044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02fb92c9a1172d9a51b3eb817493f884d29bccc5dbd77c574da4613f3aa73044", kill_on_drop: false }`
[INFO] [stdout] 02fb92c9a1172d9a51b3eb817493f884d29bccc5dbd77c574da4613f3aa73044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed09c6610ed7992d264835adb6f866667fb6319b1603c45c60b7d8646ac23a0e
[INFO] running `Command { std: "docker" "start" "-a" "ed09c6610ed7992d264835adb6f866667fb6319b1603c45c60b7d8646ac23a0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling sha1 v0.5.0
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]    Compiling futures-core-preview v0.2.3
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling futures-channel-preview v0.2.2
[INFO] [stderr]    Compiling futures-io-preview v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v1.4.2
[INFO] [stderr]    Compiling futures-sink-preview v0.2.2
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling futures-util-preview v0.2.2
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling multihash v0.8.0
[INFO] [stderr]    Compiling futures-executor-preview v0.2.2
[INFO] [stderr]    Compiling futures-stable-preview v0.2.3
[INFO] [stderr]    Compiling futures-async-runtime-preview v0.2.3
[INFO] [stderr]    Compiling futures-preview v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling rust-base58 v0.0.4
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling holochain_core_types_derive v0.0.1 (https://github.com/holochain/holochain-rust?branch=develop#1c4b5958)
[INFO] [stderr]    Compiling holochain_core_types v0.0.1 (https://github.com/holochain/holochain-rust?branch=develop#1c4b5958)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/holochain-rust-c3b6365fc5bfa642/1c4b595/core_types/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(try_from)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/holochain-rust-c3b6365fc5bfa642/1c4b595/core_types/src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(never_type)]
[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 `holochain_core_types` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "ed09c6610ed7992d264835adb6f866667fb6319b1603c45c60b7d8646ac23a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed09c6610ed7992d264835adb6f866667fb6319b1603c45c60b7d8646ac23a0e", kill_on_drop: false }`
[INFO] [stdout] ed09c6610ed7992d264835adb6f866667fb6319b1603c45c60b7d8646ac23a0e