[INFO] cloning repository https://github.com/moxaj/friendly-octopus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moxaj/friendly-octopus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dd5d55b22861f5426e4ada604b95cb4efea1829
[INFO] testing moxaj/friendly-octopus against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moxaj/friendly-octopus on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moxaj/friendly-octopus
[INFO] finished tweaking git repo https://github.com/moxaj/friendly-octopus
[INFO] tweaked toml for git repo https://github.com/moxaj/friendly-octopus written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/moxaj/friendly-octopus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 132fc2aa4054eeb35657b39e48d107e6913251ea7ed433d194a278f733ef2a75
[INFO] running `Command { std: "docker" "start" "-a" "132fc2aa4054eeb35657b39e48d107e6913251ea7ed433d194a278f733ef2a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "132fc2aa4054eeb35657b39e48d107e6913251ea7ed433d194a278f733ef2a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132fc2aa4054eeb35657b39e48d107e6913251ea7ed433d194a278f733ef2a75", kill_on_drop: false }`
[INFO] [stdout] 132fc2aa4054eeb35657b39e48d107e6913251ea7ed433d194a278f733ef2a75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8e1b3bda59942c637b57e5761e58715e0a4966a7b0c4711052f1cd55b590912
[INFO] running `Command { std: "docker" "start" "-a" "e8e1b3bda59942c637b57e5761e58715e0a4966a7b0c4711052f1cd55b590912", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling spin v0.5.1
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.11
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]    Compiling net-client v0.1.0 (/opt/rustwide/workdir/net-client)
[INFO] [stderr]    Compiling web-server v0.1.0 (/opt/rustwide/workdir/web-server)
[INFO] [stderr]    Compiling game-manager v0.1.0 (/opt/rustwide/workdir/game-manager)
[INFO] [stderr]    Compiling web-client v0.1.0 (/opt/rustwide/workdir/web-client)
[INFO] [stderr]    Compiling desktop-client v0.1.0 (/opt/rustwide/workdir/desktop-client)
[INFO] [stderr]    Compiling generational-arena v0.2.2
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling web-server-package v0.1.0 (/opt/rustwide/workdir/web-server-package)
[INFO] [stderr]    Compiling web-client-package v0.1.0 (/opt/rustwide/workdir/web-client-package)
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling desktop-client-package v0.1.0 (/opt/rustwide/workdir/desktop-client-package)
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling tracing-core v0.1.5
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.5
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.5
[INFO] [stderr]    Compiling async-trait v0.1.11
[INFO] [stderr]    Compiling tracing v0.1.7
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.5
[INFO] [stderr]    Compiling pin-project v0.4.0-alpha.11
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.5
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.5
[INFO] [stderr]    Compiling tokio-fs v0.2.0-alpha.5
[INFO] [stderr]    Compiling tokio-timer v0.3.0-alpha.5
[INFO] [stderr]    Compiling tokio-net v0.2.0-alpha.5
[INFO] [stderr]    Compiling tokio v0.2.0-alpha.5
[INFO] [stderr]    Compiling net v0.1.0 (/opt/rustwide/workdir/net)
[INFO] [stderr]    Compiling net-server v0.1.0 (/opt/rustwide/workdir/net-server)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> net-server/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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 `net-server`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e8e1b3bda59942c637b57e5761e58715e0a4966a7b0c4711052f1cd55b590912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e1b3bda59942c637b57e5761e58715e0a4966a7b0c4711052f1cd55b590912", kill_on_drop: false }`
[INFO] [stdout] e8e1b3bda59942c637b57e5761e58715e0a4966a7b0c4711052f1cd55b590912
