[INFO] crate nkeys 0.0.7 is already in cache
[INFO] checking nkeys-0.0.7 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate nkeys 0.0.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nkeys 0.0.7 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nkeys 0.0.7
[INFO] finished tweaking crates.io crate nkeys 0.0.7
[INFO] tweaked toml for crates.io crate nkeys 0.0.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] ef23b320de79284356350cef680869e310aaca0e9eb59e6a57c9bf4a0699daad
[INFO] running `"docker" "start" "-a" "ef23b320de79284356350cef680869e310aaca0e9eb59e6a57c9bf4a0699daad"`
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking subtle-encoding v0.3.7
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking signatory v0.11.5
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr] error[E0432]: unresolved import `rand`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/ed25519.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use rand::{CryptoRng, RngCore};
[INFO] [stderr]    |     ^^^^ use of undeclared type or module `rand`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/secret.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use rand::{CryptoRng, RngCore};
[INFO] [stderr]    |     ^^^^ use of undeclared type or module `rand`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[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" "ef23b320de79284356350cef680869e310aaca0e9eb59e6a57c9bf4a0699daad"`
[INFO] running `"docker" "rm" "-f" "ef23b320de79284356350cef680869e310aaca0e9eb59e6a57c9bf4a0699daad"`
[INFO] [stdout] ef23b320de79284356350cef680869e310aaca0e9eb59e6a57c9bf4a0699daad