[INFO] fetching crate twiggy-traits 0.3.0...
[INFO] extracting crate twiggy-traits 0.3.0 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/twiggy-traits/0.3.0
[INFO] extracting crate twiggy-traits 0.3.0 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/twiggy-traits/0.3.0
[INFO] validating manifest of twiggy-traits-0.3.0 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 twiggy-traits-0.3.0 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 twiggy-traits-0.3.0
[INFO] finished frobbing twiggy-traits-0.3.0
[INFO] frobbed toml for twiggy-traits-0.3.0 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/twiggy-traits/0.3.0/Cargo.toml
[INFO] started frobbing twiggy-traits-0.3.0
[INFO] finished frobbing twiggy-traits-0.3.0
[INFO] frobbed toml for twiggy-traits-0.3.0 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/twiggy-traits/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twiggy-ir v0.3.0
[INFO] [stderr]   Downloaded frozen v1.0.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking twiggy-traits-0.3.0 against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-5/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/twiggy-traits/0.3.0:/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=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] 19cfe053cafd852cc7ec68d8a6e64f5cc6285ab06400420f0dd7709d9d5ee22c
[INFO] running `"docker" "start" "-a" "19cfe053cafd852cc7ec68d8a6e64f5cc6285ab06400420f0dd7709d9d5ee22c"`
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.12
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking parity-wasm v0.32.0
[INFO] [stderr]     Checking gimli v0.16.1
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking regex v1.1.2
[INFO] [stderr]     Checking twiggy-ir v0.3.0
[INFO] [stderr]     Checking twiggy-traits v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]    --> traits.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         items: &ir::Items,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]    --> traits.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         destination: &mut io::Write,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `items`
[INFO] [stderr]    --> traits.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         items: &ir::Items,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_items`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]    --> traits.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         destination: &mut io::Write,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.67s
[INFO] running `"docker" "inspect" "19cfe053cafd852cc7ec68d8a6e64f5cc6285ab06400420f0dd7709d9d5ee22c"`
[INFO] running `"docker" "rm" "-f" "19cfe053cafd852cc7ec68d8a6e64f5cc6285ab06400420f0dd7709d9d5ee22c"`
[INFO] [stdout] 19cfe053cafd852cc7ec68d8a6e64f5cc6285ab06400420f0dd7709d9d5ee22c