[INFO] fetching crate ed25519-dalek 1.0.0-pre.2...
[INFO] checking ed25519-dalek-1.0.0-pre.2 against beta-2019-10-27 for pr-65897
[INFO] extracting crate ed25519-dalek 1.0.0-pre.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ed25519-dalek 1.0.0-pre.2 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 ed25519-dalek 1.0.0-pre.2
[INFO] finished tweaking crates.io crate ed25519-dalek 1.0.0-pre.2
[INFO] tweaked toml for crates.io crate ed25519-dalek 1.0.0-pre.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7df487071663a755f47ca6e9deb259d7a040e33bf562ae505fc828b5c0b08a49
[INFO] running `"docker" "start" "-a" "7df487071663a755f47ca6e9deb259d7a040e33bf562ae505fc828b5c0b08a49"`
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `ed25519_dalek::verify_batch`
[INFO] [stderr]   --> benches/ed25519_benchmarks.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     use ed25519_dalek::verify_batch;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `verify_batch` in the root
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `ed25519-dalek`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7df487071663a755f47ca6e9deb259d7a040e33bf562ae505fc828b5c0b08a49"`
[INFO] running `"docker" "rm" "-f" "7df487071663a755f47ca6e9deb259d7a040e33bf562ae505fc828b5c0b08a49"`
[INFO] [stdout] 7df487071663a755f47ca6e9deb259d7a040e33bf562ae505fc828b5c0b08a49