[INFO] crate k-bucket 0.1.0 is already in cache
[INFO] extracting crate k-bucket 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/k-bucket/0.1.0
[INFO] extracting crate k-bucket 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/k-bucket/0.1.0
[INFO] validating manifest of k-bucket-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of k-bucket-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing k-bucket-0.1.0
[INFO] finished frobbing k-bucket-0.1.0
[INFO] frobbed toml for k-bucket-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/k-bucket/0.1.0/Cargo.toml
[INFO] started frobbing k-bucket-0.1.0
[INFO] finished frobbing k-bucket-0.1.0
[INFO] frobbed toml for k-bucket-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/k-bucket/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing k-bucket-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/k-bucket/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d5349650136bc804c26280cc689235a0f3390109057e0016e04710e307f7101a
[INFO] running `"docker" "start" "-a" "d5349650136bc804c26280cc689235a0f3390109057e0016e04710e307f7101a"`
[INFO] [stderr]    Compiling k-bucket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `"docker" "inspect" "d5349650136bc804c26280cc689235a0f3390109057e0016e04710e307f7101a"`
[INFO] running `"docker" "rm" "-f" "d5349650136bc804c26280cc689235a0f3390109057e0016e04710e307f7101a"`
[INFO] [stdout] d5349650136bc804c26280cc689235a0f3390109057e0016e04710e307f7101a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/k-bucket/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 01484f685a698f544d4204e5ce3a16ded6b3cdf732a6bcac57e7036b1ee485da
[INFO] running `"docker" "start" "-a" "01484f685a698f544d4204e5ce3a16ded6b3cdf732a6bcac57e7036b1ee485da"`
[INFO] [stderr]    Compiling k-bucket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `clippy`
[INFO] [stderr]  --> src/lib.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![cfg_attr(test, plugin(clippy))]
[INFO] [stderr]   |                          ^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `k-bucket`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `k_bucket::Contact`
[INFO] [stderr]  --> tests/add.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use k_bucket::{Contact, KBucket};
[INFO] [stderr]   |                ^^^^^^^ no `Contact` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `KBucket`
[INFO] [stderr]  --> tests/add.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use k_bucket::{Contact, KBucket};
[INFO] [stderr]   |                         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[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 `k-bucket`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "01484f685a698f544d4204e5ce3a16ded6b3cdf732a6bcac57e7036b1ee485da"`
[INFO] running `"docker" "rm" "-f" "01484f685a698f544d4204e5ce3a16ded6b3cdf732a6bcac57e7036b1ee485da"`
[INFO] [stdout] 01484f685a698f544d4204e5ce3a16ded6b3cdf732a6bcac57e7036b1ee485da