[INFO] updating cached repository garyemerson/breadth_first_search_shortest_reach
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/garyemerson/breadth_first_search_shortest_reach
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/breadth_first_search_shortest_reach" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/breadth_first_search_shortest_reach" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/garyemerson/breadth_first_search_shortest_reach"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/garyemerson/breadth_first_search_shortest_reach'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c621ee57319559079e0398369287452327d7d94
[INFO] sha for GitHub repo garyemerson/breadth_first_search_shortest_reach: 7c621ee57319559079e0398369287452327d7d94
[INFO] validating manifest of garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach
[INFO] finished frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] frobbed toml for garyemerson/breadth_first_search_shortest_reach written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach/Cargo.toml
[INFO] started frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] finished frobbing garyemerson/breadth_first_search_shortest_reach
[INFO] frobbed toml for garyemerson/breadth_first_search_shortest_reach written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/garyemerson/breadth_first_search_shortest_reach/Cargo.toml
[INFO] crate garyemerson/breadth_first_search_shortest_reach 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 garyemerson/breadth_first_search_shortest_reach against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach:/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] 8a0abf6877f4dedbb96dbe28b24c2455710e1aee642776cf0de26f9431950166
[INFO] running `"docker" "start" "-a" "8a0abf6877f4dedbb96dbe28b24c2455710e1aee642776cf0de26f9431950166"`
[INFO] [stderr]    Compiling breadth_first_search_shortest_reach v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `num_edges`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     num_edges: i32,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider prefixing with an underscore: `_num_edges`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "8a0abf6877f4dedbb96dbe28b24c2455710e1aee642776cf0de26f9431950166"`
[INFO] running `"docker" "rm" "-f" "8a0abf6877f4dedbb96dbe28b24c2455710e1aee642776cf0de26f9431950166"`
[INFO] [stdout] 8a0abf6877f4dedbb96dbe28b24c2455710e1aee642776cf0de26f9431950166
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach:/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] 37ce4080ce12825baf33c9387569ac92afae8ef97d1712655222d4c861126e37
[INFO] running `"docker" "start" "-a" "37ce4080ce12825baf33c9387569ac92afae8ef97d1712655222d4c861126e37"`
[INFO] [stderr]    Compiling breadth_first_search_shortest_reach v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `num_edges`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     num_edges: i32,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider prefixing with an underscore: `_num_edges`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "37ce4080ce12825baf33c9387569ac92afae8ef97d1712655222d4c861126e37"`
[INFO] running `"docker" "rm" "-f" "37ce4080ce12825baf33c9387569ac92afae8ef97d1712655222d4c861126e37"`
[INFO] [stdout] 37ce4080ce12825baf33c9387569ac92afae8ef97d1712655222d4c861126e37
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/garyemerson/breadth_first_search_shortest_reach:/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] f228adc85fc7fca58e9d06018dd77846d2d16c9097267b955b118ac55e6bc39f
[INFO] running `"docker" "start" "-a" "f228adc85fc7fca58e9d06018dd77846d2d16c9097267b955b118ac55e6bc39f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/breadth_first_search_shortest_reach-4c0c6df169b17333
[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" "f228adc85fc7fca58e9d06018dd77846d2d16c9097267b955b118ac55e6bc39f"`
[INFO] running `"docker" "rm" "-f" "f228adc85fc7fca58e9d06018dd77846d2d16c9097267b955b118ac55e6bc39f"`
[INFO] [stdout] f228adc85fc7fca58e9d06018dd77846d2d16c9097267b955b118ac55e6bc39f