[INFO] crate twiggy-traits 0.3.0 is already in cache
[INFO] extracting crate twiggy-traits 0.3.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/twiggy-traits/0.3.0
[INFO] extracting crate twiggy-traits 0.3.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/twiggy-traits/0.3.0
[INFO] validating manifest of twiggy-traits-0.3.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of twiggy-traits-0.3.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/twiggy-traits/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing twiggy-traits-0.3.0 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 5efcd8501282abf396b9e08d4ed6f58b29c6efb40d180fd22156497f7759879a
[INFO] running `"docker" "start" "-a" "5efcd8501282abf396b9e08d4ed6f58b29c6efb40d180fd22156497f7759879a"`
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.12
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling gimli v0.16.1
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling twiggy-ir v0.3.0
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `"docker" "inspect" "5efcd8501282abf396b9e08d4ed6f58b29c6efb40d180fd22156497f7759879a"`
[INFO] running `"docker" "rm" "-f" "5efcd8501282abf396b9e08d4ed6f58b29c6efb40d180fd22156497f7759879a"`
[INFO] [stdout] 5efcd8501282abf396b9e08d4ed6f58b29c6efb40d180fd22156497f7759879a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] f346d0bb46ed545f55df9145a5a4715b28a3ec4bbfcbefa0a99a886fb7cb68bc
[INFO] running `"docker" "start" "-a" "f346d0bb46ed545f55df9145a5a4715b28a3ec4bbfcbefa0a99a886fb7cb68bc"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "f346d0bb46ed545f55df9145a5a4715b28a3ec4bbfcbefa0a99a886fb7cb68bc"`
[INFO] running `"docker" "rm" "-f" "f346d0bb46ed545f55df9145a5a4715b28a3ec4bbfcbefa0a99a886fb7cb68bc"`
[INFO] [stdout] f346d0bb46ed545f55df9145a5a4715b28a3ec4bbfcbefa0a99a886fb7cb68bc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] f6c1807c3ccea9264fba436fd54441a46be7478cac68b7803d9285b052bd36b7
[INFO] running `"docker" "start" "-a" "f6c1807c3ccea9264fba436fd54441a46be7478cac68b7803d9285b052bd36b7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/twiggy_traits-d7b963c4bb06ae5d
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test size_of_error_is_one_word ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twiggy-traits
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f6c1807c3ccea9264fba436fd54441a46be7478cac68b7803d9285b052bd36b7"`
[INFO] running `"docker" "rm" "-f" "f6c1807c3ccea9264fba436fd54441a46be7478cac68b7803d9285b052bd36b7"`
[INFO] [stdout] f6c1807c3ccea9264fba436fd54441a46be7478cac68b7803d9285b052bd36b7