[INFO] updating cached repository Herbert-Karl/project_euler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Herbert-Karl/project_euler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Herbert-Karl/project_euler" "work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_euler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_euler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Herbert-Karl/project_euler" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Herbert-Karl/project_euler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Herbert-Karl/project_euler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23cbf9f47cbf75e035bbdd0cf353aad66bc126af
[INFO] sha for GitHub repo Herbert-Karl/project_euler: 23cbf9f47cbf75e035bbdd0cf353aad66bc126af
[INFO] validating manifest of Herbert-Karl/project_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 Herbert-Karl/project_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 Herbert-Karl/project_euler
[INFO] finished frobbing Herbert-Karl/project_euler
[INFO] frobbed toml for Herbert-Karl/project_euler written to work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_euler/Cargo.toml
[INFO] started frobbing Herbert-Karl/project_euler
[INFO] finished frobbing Herbert-Karl/project_euler
[INFO] frobbed toml for Herbert-Karl/project_euler written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Herbert-Karl/project_euler/Cargo.toml
[INFO] crate Herbert-Karl/project_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 Herbert-Karl/project_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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_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] ea4ab7362953bb4911469edf38ef4feddb53cc13679b8ab8c198500404cac8a1
[INFO] running `"docker" "start" "-a" "ea4ab7362953bb4911469edf38ef4feddb53cc13679b8ab8c198500404cac8a1"`
[INFO] [stderr]    Compiling project_euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/problem_0009.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut triplet: (u32, u32, u32) = (1, 2, 3);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial`
[INFO] [stderr]   --> src/common.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub fn factorial(n: u128) -> u128 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_pandigital`
[INFO] [stderr]    --> src/common.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn is_pandigital(n: u64) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `smallest_multiple`
[INFO] [stderr]  --> src/problem_0005.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn smallest_multiple(n: u128) -> u128 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `special_pythagorean_triplet`
[INFO] [stderr]  --> src/problem_0009.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn special_pythagorean_triplet() -> ((u32, u32, u32), u32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial_digit_sum`
[INFO] [stderr]  --> src/problem_0020.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn factorial_digit_sum(n: u128) -> u128 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "ea4ab7362953bb4911469edf38ef4feddb53cc13679b8ab8c198500404cac8a1"`
[INFO] running `"docker" "rm" "-f" "ea4ab7362953bb4911469edf38ef4feddb53cc13679b8ab8c198500404cac8a1"`
[INFO] [stdout] ea4ab7362953bb4911469edf38ef4feddb53cc13679b8ab8c198500404cac8a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_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] c3d8bf96ec2df10e972f318a753e55ecc7f226037ff1151c7e32a54aeb9bbbe3
[INFO] running `"docker" "start" "-a" "c3d8bf96ec2df10e972f318a753e55ecc7f226037ff1151c7e32a54aeb9bbbe3"`
[INFO] [stderr]    Compiling project_euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/problem_0009.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut triplet: (u32, u32, u32) = (1, 2, 3);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `special_pythagorean_triplet`
[INFO] [stderr]  --> src/problem_0009.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn special_pythagorean_triplet() -> ((u32, u32, u32), u32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "c3d8bf96ec2df10e972f318a753e55ecc7f226037ff1151c7e32a54aeb9bbbe3"`
[INFO] running `"docker" "rm" "-f" "c3d8bf96ec2df10e972f318a753e55ecc7f226037ff1151c7e32a54aeb9bbbe3"`
[INFO] [stdout] c3d8bf96ec2df10e972f318a753e55ecc7f226037ff1151c7e32a54aeb9bbbe3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Herbert-Karl/project_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] 16adeb3bc82568245022396f08e104a2d21592d3df385334116f79703f85ad69
[INFO] running `"docker" "start" "-a" "16adeb3bc82568245022396f08e104a2d21592d3df385334116f79703f85ad69"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/project_euler-94b6efd6b86cd861
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::factorial_t00 ... ok
[INFO] [stdout] test tests::amicable_pair_t00 ... ok
[INFO] [stdout] test tests::amicable_pair_t01 ... ok
[INFO] [stdout] test tests::factorial_t01 ... ok
[INFO] [stdout] test tests::collatz_sequence_t00 ... ok
[INFO] [stdout] test tests::problem_10_t00 ... ok
[INFO] [stdout] test tests::problem_12_t00 ... ok
[INFO] [stdout] test tests::problem_3_t00 ... ok
[INFO] [stdout] test tests::problem_20_t00 ... ok
[INFO] [stdout] test tests::is_pandigital_t00 ... ok
[INFO] [stdout] test tests::problem_5_t00 ... ok
[INFO] [stdout] test tests::problem_6_t00 ... ok
[INFO] [stdout] test tests::problem_7_t00 ... ok
[INFO] [stdout] test tests::problem_8_t00 ... ok
[INFO] [stdout] test tests::proper_divisors_t00 ... ok
[INFO] [stdout] test tests::proper_divisors_t01 ... ok
[INFO] [stdout] test tests::is_pandigital_t01 ... ok
[INFO] [stdout] test tests::factorial_t02 ... ok
[INFO] [stdout] test tests::is_palindrome_t00 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "16adeb3bc82568245022396f08e104a2d21592d3df385334116f79703f85ad69"`
[INFO] running `"docker" "rm" "-f" "16adeb3bc82568245022396f08e104a2d21592d3df385334116f79703f85ad69"`
[INFO] [stdout] 16adeb3bc82568245022396f08e104a2d21592d3df385334116f79703f85ad69