[INFO] crate ethkey 0.2.5 is already in cache
[INFO] extracting crate ethkey 0.2.5 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/ethkey/0.2.5
[INFO] extracting crate ethkey 0.2.5 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/ethkey/0.2.5
[INFO] validating manifest of ethkey-0.2.5 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ethkey-0.2.5 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-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-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/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-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/ethkey/0.2.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ethkey-0.2.5 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/ethkey/0.2.5:/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=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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aaa504ebefc3b2852ccb0304fd70fcf0fed5a1a81fdc6a66131dd2c7e3d8493a
[INFO] running `"docker" "start" "-a" "aaa504ebefc3b2852ccb0304fd70fcf0fed5a1a81fdc6a66131dd2c7e3d8493a"`
[INFO] [stderr]     Checking error-chain v0.12.1
[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 3.61s
[INFO] running `"docker" "inspect" "aaa504ebefc3b2852ccb0304fd70fcf0fed5a1a81fdc6a66131dd2c7e3d8493a"`
[INFO] running `"docker" "rm" "-f" "aaa504ebefc3b2852ccb0304fd70fcf0fed5a1a81fdc6a66131dd2c7e3d8493a"`
[INFO] [stdout] aaa504ebefc3b2852ccb0304fd70fcf0fed5a1a81fdc6a66131dd2c7e3d8493a