[INFO] fetching crate tari_mmr 0.0.5...
[INFO] checking tari_mmr-0.0.5 against beta-2019-10-27 for pr-65897
[INFO] extracting crate tari_mmr 0.0.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tari_mmr 0.0.5 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tari_mmr 0.0.5
[INFO] finished tweaking crates.io crate tari_mmr 0.0.5
[INFO] tweaked toml for crates.io crate tari_mmr 0.0.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=allow" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd99f98931506241b87f965c973c366e03d08cd5f470509a0b860ff7604e1087
[INFO] running `"docker" "start" "-a" "dd99f98931506241b87f965c973c366e03d08cd5f470509a0b860ff7604e1087"`
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking merlin v1.2.1
[INFO] [stderr]     Checking rmp v0.8.8
[INFO] [stderr]     Checking lmdb-zero v0.4.4
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tari_utilities v0.0.5
[INFO] [stderr]    Compiling tari_infra_derive v0.0.5
[INFO] [stderr]     Checking tari_storage v0.0.5
[INFO] [stderr]    Compiling bindgen v0.49.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking bulletproofs v1.0.4
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bulletproofs-1.0.4/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bulletproofs-1.0.4/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(external_doc)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bulletproofs-1.0.4/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(try_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `bulletproofs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dd99f98931506241b87f965c973c366e03d08cd5f470509a0b860ff7604e1087"`
[INFO] running `"docker" "rm" "-f" "dd99f98931506241b87f965c973c366e03d08cd5f470509a0b860ff7604e1087"`
[INFO] [stdout] dd99f98931506241b87f965c973c366e03d08cd5f470509a0b860ff7604e1087