[INFO] cloning repository https://github.com/k-nasa/tech_fest_proxy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k-nasa/tech_fest_proxy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-nasa%2Ftech_fest_proxy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-nasa%2Ftech_fest_proxy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81216fa8ce1a0a32050029605199876e982359dc
[INFO] testing k-nasa/tech_fest_proxy against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-nasa%2Ftech_fest_proxy" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-nasa/tech_fest_proxy on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/k-nasa/tech_fest_proxy
[INFO] finished tweaking git repo https://github.com/k-nasa/tech_fest_proxy
[INFO] tweaked toml for git repo https://github.com/k-nasa/tech_fest_proxy written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/k-nasa/tech_fest_proxy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 655e1b5e4aa4cc535a4a2534d3e46dca6642bd82152d23a6865c3be19bbb5c25
[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" "655e1b5e4aa4cc535a4a2534d3e46dca6642bd82152d23a6865c3be19bbb5c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655e1b5e4aa4cc535a4a2534d3e46dca6642bd82152d23a6865c3be19bbb5c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655e1b5e4aa4cc535a4a2534d3e46dca6642bd82152d23a6865c3be19bbb5c25", kill_on_drop: false }`
[INFO] [stdout] 655e1b5e4aa4cc535a4a2534d3e46dca6642bd82152d23a6865c3be19bbb5c25
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e54b1734b5bfb9c91edae5d97034cc4e38faf2a6b68a86d8cede30239df9e41c
[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" "e54b1734b5bfb9c91edae5d97034cc4e38faf2a6b68a86d8cede30239df9e41c", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling curl v0.4.23
[INFO] [stderr]    Compiling isahc v0.7.3
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_qs v0.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling sluice v0.4.2
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling hyper v0.12.34
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling http-service v0.3.1
[INFO] [stderr]    Compiling tide-core v0.2.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-headers v0.1.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-forms v0.1.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-querystring v0.1.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-cors v0.2.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-log v0.1.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling tide-cookies v0.2.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling http-service-hyper v0.3.1
[INFO] [stderr]    Compiling tide v0.2.0 (https://github.com/rustasync/tide#af0b900b)
[INFO] [stderr]    Compiling surf v1.0.2
[INFO] [stderr]    Compiling tech_fest_proxy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.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 `tech_fest_proxy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e54b1734b5bfb9c91edae5d97034cc4e38faf2a6b68a86d8cede30239df9e41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54b1734b5bfb9c91edae5d97034cc4e38faf2a6b68a86d8cede30239df9e41c", kill_on_drop: false }`
[INFO] [stdout] e54b1734b5bfb9c91edae5d97034cc4e38faf2a6b68a86d8cede30239df9e41c
