[INFO] fetching crate ethkey 0.2.5...
[INFO] extracting crate ethkey 0.2.5 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/ethkey/0.2.5
[INFO] extracting crate ethkey 0.2.5 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/ethkey/0.2.5
[INFO] validating manifest of ethkey-0.2.5 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ethkey-0.2.5 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ethkey-0.2.5
[INFO] finished frobbing ethkey-0.2.5
[INFO] frobbed toml for ethkey-0.2.5 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/ethkey/0.2.5/Cargo.toml
[INFO] started frobbing ethkey-0.2.5
[INFO] finished frobbing ethkey-0.2.5
[INFO] frobbed toml for ethkey-0.2.5 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/ethkey/0.2.5/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ethkey-0.2.5 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/ethkey/0.2.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 26b9c91c1a1002ccba43e945a7da532e6e995444853b17494da21f8225b2a4aa
[INFO] running `"docker" "start" "-a" "26b9c91c1a1002ccba43e945a7da532e6e995444853b17494da21f8225b2a4aa"`
[INFO] [stderr]     Checking memzero v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling secp256k1 v0.12.2
[INFO] [stderr]     Checking stream-cipher v0.3.0
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking ripemd160 v0.8.0
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking scrypt v0.1.2
[INFO] [stderr]     Checking aes-ctr v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking parity-crypto v0.3.1
[INFO] [stderr]     Checking ethsign v0.5.0
[INFO] [stderr]     Checking ethkey v0.2.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `error_chain_processing`, `impl_error_chain_kind`, `impl_error_chain_processed`, `impl_extract_backtrace`
[INFO] [stderr]   --> src/lib.rs:34:18
[INFO] [stderr]    |
[INFO] [stderr] 34 |     error_chain, error_chain_processing, impl_error_chain_kind, impl_error_chain_processed,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 35 |     impl_extract_backtrace,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error_chain_processing`, `impl_error_chain_kind`, `impl_error_chain_processed`, `impl_extract_backtrace`
[INFO] [stderr]   --> src/lib.rs:34:18
[INFO] [stderr]    |
[INFO] [stderr] 34 |     error_chain, error_chain_processing, impl_error_chain_kind, impl_error_chain_processed,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 35 |     impl_extract_backtrace,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.76s
[INFO] running `"docker" "inspect" "26b9c91c1a1002ccba43e945a7da532e6e995444853b17494da21f8225b2a4aa"`
[INFO] running `"docker" "rm" "-f" "26b9c91c1a1002ccba43e945a7da532e6e995444853b17494da21f8225b2a4aa"`
[INFO] [stdout] 26b9c91c1a1002ccba43e945a7da532e6e995444853b17494da21f8225b2a4aa