[INFO] crate couchdb-container 0.2.0 is already in cache
[INFO] testing couchdb-container-0.2.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate couchdb-container 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate couchdb-container 0.2.0 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 couchdb-container 0.2.0
[INFO] finished tweaking crates.io crate couchdb-container 0.2.0
[INFO] tweaked toml for crates.io crate couchdb-container 0.2.0 written to /workspace/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] eab123f8173b3be2b42c56d5c49ebabc0cf92d1a445c9cd2804467b2e7f13c6f
[INFO] running `Command { std: "docker" "start" "-a" "eab123f8173b3be2b42c56d5c49ebabc0cf92d1a445c9cd2804467b2e7f13c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eab123f8173b3be2b42c56d5c49ebabc0cf92d1a445c9cd2804467b2e7f13c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab123f8173b3be2b42c56d5c49ebabc0cf92d1a445c9cd2804467b2e7f13c6f", kill_on_drop: false }`
[INFO] [stdout] eab123f8173b3be2b42c56d5c49ebabc0cf92d1a445c9cd2804467b2e7f13c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] a2ffc9bcd060389fd56d2213e6cc6197ddb21f942de0952134ab5e29f8a3f306
[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" "a2ffc9bcd060389fd56d2213e6cc6197ddb21f942de0952134ab5e29f8a3f306", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling hyper-openssl v0.7.1
[INFO] [stderr]    Compiling linked_hash_set v0.1.4
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-openssl v0.3.0
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tar v0.4.29
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling hyperlocal v0.6.0
[INFO] [stderr]    Compiling shiplift v0.5.0
[INFO] [stderr]    Compiling harbourmaster v0.3.0
[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/harbourmaster-0.3.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(async_await)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `harbourmaster`.
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[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" "a2ffc9bcd060389fd56d2213e6cc6197ddb21f942de0952134ab5e29f8a3f306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ffc9bcd060389fd56d2213e6cc6197ddb21f942de0952134ab5e29f8a3f306", kill_on_drop: false }`
[INFO] [stdout] a2ffc9bcd060389fd56d2213e6cc6197ddb21f942de0952134ab5e29f8a3f306