[INFO] updating cached repository derokorian/vampire_numbers-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/derokorian/vampire_numbers-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/derokorian/vampire_numbers-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/derokorian/vampire_numbers-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/derokorian/vampire_numbers-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/derokorian/vampire_numbers-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ef42f937ae2b29762c4b9e2f6df54bb2cec7be01
[INFO] sha for GitHub repo derokorian/vampire_numbers-rust: ef42f937ae2b29762c4b9e2f6df54bb2cec7be01
[INFO] validating manifest of derokorian/vampire_numbers-rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of derokorian/vampire_numbers-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing derokorian/vampire_numbers-rust
[INFO] finished frobbing derokorian/vampire_numbers-rust
[INFO] frobbed toml for derokorian/vampire_numbers-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust/Cargo.toml
[INFO] started frobbing derokorian/vampire_numbers-rust
[INFO] finished frobbing derokorian/vampire_numbers-rust
[INFO] frobbed toml for derokorian/vampire_numbers-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/derokorian/vampire_numbers-rust/Cargo.toml
[INFO] crate derokorian/vampire_numbers-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing derokorian/vampire_numbers-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 49d79a1891d9068d543c258546512b2913103ad46e07c0ee8d8d2602547dd3a1
[INFO] running `"docker" "start" "-a" "49d79a1891d9068d543c258546512b2913103ad46e07c0ee8d8d2602547dd3a1"`
[INFO] [stderr]    Compiling e234_vampire_numbers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `num::pow`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use num::pow;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assert_eq_vec_vampire`
[INFO] [stderr]   --> src/main.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn assert_eq_vec_vampire(mut expected: Vec<Vampire>, mut compared: Vec<Vampire>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "49d79a1891d9068d543c258546512b2913103ad46e07c0ee8d8d2602547dd3a1"`
[INFO] running `"docker" "rm" "-f" "49d79a1891d9068d543c258546512b2913103ad46e07c0ee8d8d2602547dd3a1"`
[INFO] [stdout] 49d79a1891d9068d543c258546512b2913103ad46e07c0ee8d8d2602547dd3a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 234c19416196c48da1b2d2ba9fcfcacd5db0c4727dbaa0cbbac7b52b13f09585
[INFO] running `"docker" "start" "-a" "234c19416196c48da1b2d2ba9fcfcacd5db0c4727dbaa0cbbac7b52b13f09585"`
[INFO] [stderr]    Compiling e234_vampire_numbers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `num::pow`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use num::pow;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "234c19416196c48da1b2d2ba9fcfcacd5db0c4727dbaa0cbbac7b52b13f09585"`
[INFO] running `"docker" "rm" "-f" "234c19416196c48da1b2d2ba9fcfcacd5db0c4727dbaa0cbbac7b52b13f09585"`
[INFO] [stdout] 234c19416196c48da1b2d2ba9fcfcacd5db0c4727dbaa0cbbac7b52b13f09585
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/derokorian/vampire_numbers-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 1dbb3802acd27c64cb7d0a061f49f80ec0d7d6b5f3b379c1065b471daaca7eb5
[INFO] running `"docker" "start" "-a" "1dbb3802acd27c64cb7d0a061f49f80ec0d7d6b5f3b379c1065b471daaca7eb5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/e234_vampire_numbers-40e22fecb9b85112
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_find_vampire_fangs_four_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1dbb3802acd27c64cb7d0a061f49f80ec0d7d6b5f3b379c1065b471daaca7eb5"`
[INFO] running `"docker" "rm" "-f" "1dbb3802acd27c64cb7d0a061f49f80ec0d7d6b5f3b379c1065b471daaca7eb5"`
[INFO] [stdout] 1dbb3802acd27c64cb7d0a061f49f80ec0d7d6b5f3b379c1065b471daaca7eb5