[INFO] fetching crate jupiter-account 0.1.10...
[INFO] documenting jupiter-account-0.1.10 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate jupiter-account 0.1.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate jupiter-account 0.1.10 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jupiter-account 0.1.10
[INFO] finished tweaking crates.io crate jupiter-account 0.1.10
[INFO] tweaked toml for crates.io crate jupiter-account 0.1.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ac051ae0e3bfaea6efd97ab5ed43b9db5fbc247815c2f822266220df61a5e0b
[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" "8ac051ae0e3bfaea6efd97ab5ed43b9db5fbc247815c2f822266220df61a5e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ac051ae0e3bfaea6efd97ab5ed43b9db5fbc247815c2f822266220df61a5e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac051ae0e3bfaea6efd97ab5ed43b9db5fbc247815c2f822266220df61a5e0b", kill_on_drop: false }`
[INFO] [stdout] 8ac051ae0e3bfaea6efd97ab5ed43b9db5fbc247815c2f822266220df61a5e0b
[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" "RUSTDOCFLAGS=--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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 866335e72c4337b34ea450863cb31fdd1cf32c743a1408155e101bed22787466
[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" "866335e72c4337b34ea450863cb31fdd1cf32c743a1408155e101bed22787466", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde_cbor v0.10.2
[INFO] [stderr]     Checking rlp v0.4.5
[INFO] [stderr]     Checking multiproof-rs v0.1.9
[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/multiproof-rs-0.1.9/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[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 `multiproof-rs`.
[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" "866335e72c4337b34ea450863cb31fdd1cf32c743a1408155e101bed22787466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866335e72c4337b34ea450863cb31fdd1cf32c743a1408155e101bed22787466", kill_on_drop: false }`
[INFO] [stdout] 866335e72c4337b34ea450863cb31fdd1cf32c743a1408155e101bed22787466