[INFO] updating cached repository grahame/dividebatur2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grahame/dividebatur2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grahame/dividebatur2" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/grahame/dividebatur2"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/grahame/dividebatur2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grahame/dividebatur2" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f52f658ff168ef1070b659fe57fcdf283318bc92
[INFO] sha for GitHub repo grahame/dividebatur2: f52f658ff168ef1070b659fe57fcdf283318bc92
[INFO] validating manifest of grahame/dividebatur2 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 grahame/dividebatur2 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 grahame/dividebatur2
[INFO] finished frobbing grahame/dividebatur2
[INFO] frobbed toml for grahame/dividebatur2 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/grahame/dividebatur2/Cargo.toml
[INFO] started frobbing grahame/dividebatur2
[INFO] finished frobbing grahame/dividebatur2
[INFO] frobbed toml for grahame/dividebatur2 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2/Cargo.toml
[INFO] crate grahame/dividebatur2 has a lockfile. skipping
[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 grahame/dividebatur2 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] fed2c0638e322684984fb2afc5d3083922f83ccf4dbb4ce83267b796fe1875de
[INFO] running `"docker" "start" "-a" "fed2c0638e322684984fb2afc5d3083922f83ccf4dbb4ce83267b796fe1875de"`
[INFO] [stderr]    Compiling num-complex v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling dividebatur v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.89s
[INFO] running `"docker" "inspect" "fed2c0638e322684984fb2afc5d3083922f83ccf4dbb4ce83267b796fe1875de"`
[INFO] running `"docker" "rm" "-f" "fed2c0638e322684984fb2afc5d3083922f83ccf4dbb4ce83267b796fe1875de"`
[INFO] [stdout] fed2c0638e322684984fb2afc5d3083922f83ccf4dbb4ce83267b796fe1875de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6b89673f23683286bb8288270da3c1b94fb76819b0f9ed6793e3bc167dc68311
[INFO] running `"docker" "start" "-a" "6b89673f23683286bb8288270da3c1b94fb76819b0f9ed6793e3bc167dc68311"`
[INFO] [stderr]    Compiling dividebatur v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `"docker" "inspect" "6b89673f23683286bb8288270da3c1b94fb76819b0f9ed6793e3bc167dc68311"`
[INFO] running `"docker" "rm" "-f" "6b89673f23683286bb8288270da3c1b94fb76819b0f9ed6793e3bc167dc68311"`
[INFO] [stdout] 6b89673f23683286bb8288270da3c1b94fb76819b0f9ed6793e3bc167dc68311
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/grahame/dividebatur2:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 7b0e53660af78201c1d6115539c4b21198ac181298c00a1aa1ca8140eac5cefb
[INFO] running `"docker" "start" "-a" "7b0e53660af78201c1d6115539c4b21198ac181298c00a1aa1ca8140eac5cefb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dividebatur-cb06a505e8c912be
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test aec::data::formalpreferences::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dividebatur-3f5abd9c056c9414
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test aec::data::formalpreferences::tests::it_works ... 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 dividebatur
[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" "7b0e53660af78201c1d6115539c4b21198ac181298c00a1aa1ca8140eac5cefb"`
[INFO] running `"docker" "rm" "-f" "7b0e53660af78201c1d6115539c4b21198ac181298c00a1aa1ca8140eac5cefb"`
[INFO] [stdout] 7b0e53660af78201c1d6115539c4b21198ac181298c00a1aa1ca8140eac5cefb