[INFO] updating cached repository PhilipDaniels/projecteuler [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/PhilipDaniels/projecteuler [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/PhilipDaniels/projecteuler" "work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/PhilipDaniels/projecteuler" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PhilipDaniels/projecteuler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PhilipDaniels/projecteuler'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 32960482901579f6c3af5ba18865db39eb6c62b9 [INFO] sha for GitHub repo PhilipDaniels/projecteuler: 32960482901579f6c3af5ba18865db39eb6c62b9 [INFO] validating manifest of PhilipDaniels/projecteuler 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 PhilipDaniels/projecteuler 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 PhilipDaniels/projecteuler [INFO] finished frobbing PhilipDaniels/projecteuler [INFO] frobbed toml for PhilipDaniels/projecteuler written to work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler/Cargo.toml [INFO] started frobbing PhilipDaniels/projecteuler [INFO] finished frobbing PhilipDaniels/projecteuler [INFO] frobbed toml for PhilipDaniels/projecteuler written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PhilipDaniels/projecteuler/Cargo.toml [INFO] crate PhilipDaniels/projecteuler 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 PhilipDaniels/projecteuler 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler:/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] bd794746222621d4c8b6de2f45b73d1564cf913de0130a280b4169f3f67722da [INFO] running `"docker" "start" "-a" "bd794746222621d4c8b6de2f45b73d1564cf913de0130a280b4169f3f67722da"` [INFO] [stderr] Compiling projecteuler v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/calc.rs:76:13 [INFO] [stderr] | [INFO] [stderr] 76 | let mut x = n; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/calc.rs:77:13 [INFO] [stderr] | [INFO] [stderr] 77 | let mut exponent = 1; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/p011_to_p020.rs:379:13 [INFO] [stderr] | [INFO] [stderr] 379 | let mut d = column_sum; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.09s [INFO] running `"docker" "inspect" "bd794746222621d4c8b6de2f45b73d1564cf913de0130a280b4169f3f67722da"` [INFO] running `"docker" "rm" "-f" "bd794746222621d4c8b6de2f45b73d1564cf913de0130a280b4169f3f67722da"` [INFO] [stdout] bd794746222621d4c8b6de2f45b73d1564cf913de0130a280b4169f3f67722da [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler:/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] 7f2e1d02d9ffbfe7717c8fc445a922fc3e05aedcab531861770ea1fc0e564b53 [INFO] running `"docker" "start" "-a" "7f2e1d02d9ffbfe7717c8fc445a922fc3e05aedcab531861770ea1fc0e564b53"` [INFO] [stderr] Compiling projecteuler v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/calc.rs:76:13 [INFO] [stderr] | [INFO] [stderr] 76 | let mut x = n; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/calc.rs:77:13 [INFO] [stderr] | [INFO] [stderr] 77 | let mut exponent = 1; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/p011_to_p020.rs:379:13 [INFO] [stderr] | [INFO] [stderr] 379 | let mut d = column_sum; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.99s [INFO] running `"docker" "inspect" "7f2e1d02d9ffbfe7717c8fc445a922fc3e05aedcab531861770ea1fc0e564b53"` [INFO] running `"docker" "rm" "-f" "7f2e1d02d9ffbfe7717c8fc445a922fc3e05aedcab531861770ea1fc0e564b53"` [INFO] [stdout] 7f2e1d02d9ffbfe7717c8fc445a922fc3e05aedcab531861770ea1fc0e564b53 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PhilipDaniels/projecteuler:/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] d67161a776a1a6599c88403a32be9864747e3b0b11a03fa92201c3a27f5b120d [INFO] running `"docker" "start" "-a" "d67161a776a1a6599c88403a32be9864747e3b0b11a03fa92201c3a27f5b120d"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/projecteuler-b284deaec5e2824f [INFO] [stdout] [INFO] [stdout] running 23 tests [INFO] [stdout] test calc::tests::collatz_len_works ... ok [INFO] [stdout] test calc::tests::divisors_works ... ok [INFO] [stdout] test calc::tests::gcd_works ... ok [INFO] [stdout] test calc::tests::sqrt_ceil_works ... ok [INFO] [stdout] test calc::tests::triangle_works ... ok [INFO] [stdout] test calc::tests::vec_to_num_works ... ok [INFO] [stdout] test calc::tests::sqrt_upper_bound_works ... ok [INFO] [stdout] test fibonacci::tests::fib_in_range_for_empty_range_returns_empty_vec ... ok [INFO] [stdout] test fibonacci::tests::fib_in_range_for_start_at_nonzero_returns_correct_fibs ... ok [INFO] [stdout] test iterator_adapters::tests::in_range_works ... ok [INFO] [stdout] test fibonacci::tests::fib_in_range_for_start_at_zero_returns_first_fibs ... ok [INFO] [stdout] test matrix::tests::from_str_for_empty_string_returns_empty_matrix ... ok [INFO] [stdout] test prime::tests::primes_in_range_for_start_at_zero_returns_first_primes ... ok [INFO] [stdout] test utils::tests::is_palindrome_for_singleton_slice_returns_true ... ok [INFO] [stdout] test prime::tests::primes_in_range_for_empty_range_returns_empty_vec ... ok [INFO] [stdout] test prime::tests::primes_in_range_for_start_at_nonzero_returns_correct_primes ... ok [INFO] [stdout] test matrix::tests::from_str_for_two_dimensional_string_returns_correct_vector ... ok [INFO] [stdout] test matrix::tests::from_str_for_string_containing_non_numbers_returns_err ... ok [INFO] [stdout] test matrix::tests::from_str_for_string_containing_different_numbers_of_cols_returns_err ... ok [INFO] [stdout] test utils::tests::is_palindrome_vec_for_slices_which_are_not_palindromes_returns_false ... ok [INFO] [stdout] test utils::tests::is_palindrome_for_slices_which_are_palindromes_returns_true ... ok [INFO] [stdout] test utils::tests::is_palindrome_vec_for_empty_slice_returns_true ... ok [INFO] [stdout] test matrix::tests::from_str_for_one_dimensional_string_returns_correct_vector ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "d67161a776a1a6599c88403a32be9864747e3b0b11a03fa92201c3a27f5b120d"` [INFO] running `"docker" "rm" "-f" "d67161a776a1a6599c88403a32be9864747e3b0b11a03fa92201c3a27f5b120d"` [INFO] [stdout] d67161a776a1a6599c88403a32be9864747e3b0b11a03fa92201c3a27f5b120d