[INFO] cloning repository keorn/parity-spec
[INFO] running `"git" "clone" "--bare" "git://github.com/keorn/parity-spec.git" "work/cache/sources/gh/keorn/parity-spec"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/keorn/parity-spec'...
[INFO] running `"git" "clone" "work/cache/sources/gh/keorn/parity-spec" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/keorn/parity-spec"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/keorn/parity-spec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/keorn/parity-spec" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/keorn/parity-spec"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/keorn/parity-spec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e6b89769c8468da306036e4236481eb3b4c77a74
[INFO] sha for GitHub repo keorn/parity-spec: e6b89769c8468da306036e4236481eb3b4c77a74
[INFO] validating manifest of keorn/parity-spec on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of keorn/parity-spec on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing keorn/parity-spec
[INFO] finished frobbing keorn/parity-spec
[INFO] frobbed toml for keorn/parity-spec written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/keorn/parity-spec/Cargo.toml
[INFO] started frobbing keorn/parity-spec
[INFO] finished frobbing keorn/parity-spec
[INFO] frobbed toml for keorn/parity-spec written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/keorn/parity-spec/Cargo.toml
[INFO] crate keorn/parity-spec has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking keorn/parity-spec against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-4/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/keorn/parity-spec:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c467cada29a4650dd8e863ed1afe1010db4633e2002157133d64b1bb667a0bb3
[INFO] running `"docker" "start" "-a" "c467cada29a4650dd8e863ed1afe1010db4633e2002157133d64b1bb667a0bb3"`
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.13.0
[INFO] [stderr]    Compiling serde_derive v0.9.7
[INFO] [stderr]     Checking chain_spec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/main.rs:121:2
[INFO] [stderr]     |
[INFO] [stderr] 121 |     /// Read Geth chain spec.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/main.rs:185:2
[INFO] [stderr]     |
[INFO] [stderr] 185 |     /// Construct Parity chain spec.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/main.rs:121:2
[INFO] [stderr]     |
[INFO] [stderr] 121 |     /// Read Geth chain spec.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/main.rs:185:2
[INFO] [stderr]     |
[INFO] [stderr] 185 |     /// Construct Parity chain spec.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `eip158Block`
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     eip158Block: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `eip158Block`
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     eip158Block: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.37s
[INFO] running `"docker" "inspect" "c467cada29a4650dd8e863ed1afe1010db4633e2002157133d64b1bb667a0bb3"`
[INFO] running `"docker" "rm" "-f" "c467cada29a4650dd8e863ed1afe1010db4633e2002157133d64b1bb667a0bb3"`
[INFO] [stdout] c467cada29a4650dd8e863ed1afe1010db4633e2002157133d64b1bb667a0bb3