[INFO] updating cached repository msevilgenius/rusty-euler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/msevilgenius/rusty-euler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/msevilgenius/rusty-euler" "work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/msevilgenius/rusty-euler" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msevilgenius/rusty-euler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msevilgenius/rusty-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ef8da5845b6c162420580cfee9eec54a04c0442
[INFO] sha for GitHub repo msevilgenius/rusty-euler: 8ef8da5845b6c162420580cfee9eec54a04c0442
[INFO] validating manifest of msevilgenius/rusty-euler 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 msevilgenius/rusty-euler 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 msevilgenius/rusty-euler
[INFO] finished frobbing msevilgenius/rusty-euler
[INFO] frobbed toml for msevilgenius/rusty-euler written to work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler/Cargo.toml
[INFO] started frobbing msevilgenius/rusty-euler
[INFO] finished frobbing msevilgenius/rusty-euler
[INFO] frobbed toml for msevilgenius/rusty-euler written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msevilgenius/rusty-euler/Cargo.toml
[INFO] crate msevilgenius/rusty-euler 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing msevilgenius/rusty-euler 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler:/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] 60384b420cbf6fe390aac6465b316feea1558d11ce21ff9ede78062df021e89d
[INFO] running `"docker" "start" "-a" "60384b420cbf6fe390aac6465b316feea1558d11ce21ff9ede78062df021e89d"`
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `largest_prime_factor`
[INFO] [stderr]  --> src/problems/problem3.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn largest_prime_factor(num: i64) -> i64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "60384b420cbf6fe390aac6465b316feea1558d11ce21ff9ede78062df021e89d"`
[INFO] running `"docker" "rm" "-f" "60384b420cbf6fe390aac6465b316feea1558d11ce21ff9ede78062df021e89d"`
[INFO] [stdout] 60384b420cbf6fe390aac6465b316feea1558d11ce21ff9ede78062df021e89d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler:/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] 6005168928fe9a9abad5cb532068ecb6df4e3d9d450012464dbbc8201a4e7b08
[INFO] running `"docker" "start" "-a" "6005168928fe9a9abad5cb532068ecb6df4e3d9d450012464dbbc8201a4e7b08"`
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "6005168928fe9a9abad5cb532068ecb6df4e3d9d450012464dbbc8201a4e7b08"`
[INFO] running `"docker" "rm" "-f" "6005168928fe9a9abad5cb532068ecb6df4e3d9d450012464dbbc8201a4e7b08"`
[INFO] [stdout] 6005168928fe9a9abad5cb532068ecb6df4e3d9d450012464dbbc8201a4e7b08
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/msevilgenius/rusty-euler:/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] a047b0a8f59cf4cadb9cd28fed45bfca098f09093e1cc927ed9e90b35653b1a7
[INFO] running `"docker" "start" "-a" "a047b0a8f59cf4cadb9cd28fed45bfca098f09093e1cc927ed9e90b35653b1a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/euler-d2fb64dee04c2518
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test problems::problem2::tests::fib ... ok
[INFO] [stdout] test problems::problem3::tests::prime_factor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a047b0a8f59cf4cadb9cd28fed45bfca098f09093e1cc927ed9e90b35653b1a7"`
[INFO] running `"docker" "rm" "-f" "a047b0a8f59cf4cadb9cd28fed45bfca098f09093e1cc927ed9e90b35653b1a7"`
[INFO] [stdout] a047b0a8f59cf4cadb9cd28fed45bfca098f09093e1cc927ed9e90b35653b1a7