[INFO] updating cached repository DarrenRJ/Euler [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/DarrenRJ/Euler [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/DarrenRJ/Euler" "work/ex/beta-1.37-6/sources/1.36.0/gh/DarrenRJ/Euler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/DarrenRJ/Euler'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/DarrenRJ/Euler" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/Euler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/Euler'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2669d3f7afa22fcb93de70fcc0a8d4fb10a4f483 [INFO] sha for GitHub repo DarrenRJ/Euler: 2669d3f7afa22fcb93de70fcc0a8d4fb10a4f483 [INFO] validating manifest of DarrenRJ/Euler on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of DarrenRJ/Euler on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing DarrenRJ/Euler [INFO] finished frobbing DarrenRJ/Euler [INFO] frobbed toml for DarrenRJ/Euler written to work/ex/beta-1.37-6/sources/1.36.0/gh/DarrenRJ/Euler/Cargo.toml [INFO] started frobbing DarrenRJ/Euler [INFO] finished frobbing DarrenRJ/Euler [INFO] frobbed toml for DarrenRJ/Euler written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/Euler/Cargo.toml [INFO] crate DarrenRJ/Euler already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing DarrenRJ/Euler against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] 26b7dba2116dfbc13ee6b4f57524e96e9d61046de8113d927e240435b8a41252 [INFO] running `"docker" "start" "-a" "26b7dba2116dfbc13ee6b4f57524e96e9d61046de8113d927e240435b8a41252"` [INFO] [stderr] Compiling hamming v0.1.3 [INFO] [stderr] Compiling smallvec v0.4.4 [INFO] [stderr] Compiling primal-estimate v0.2.1 [INFO] [stderr] Compiling rand v0.3.17 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling primal-bit v0.2.4 [INFO] [stderr] Compiling primal-sieve v0.2.7 [INFO] [stderr] Compiling num-bigint v0.1.40 [INFO] [stderr] Compiling num-rational v0.1.39 [INFO] [stderr] Compiling num v0.1.40 [INFO] [stderr] Compiling primal-check v0.2.2 [INFO] [stderr] Compiling primal v0.2.3 [INFO] [stderr] Compiling euler v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2117:25 [INFO] [stderr] | [INFO] [stderr] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [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/solutions.rs:2354:13 [INFO] [stderr] | [INFO] [stderr] 2354 | let mut a = 100-i; [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/solutions.rs:2357:17 [INFO] [stderr] | [INFO] [stderr] 2357 | let mut b = 100-j; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.52s [INFO] running `"docker" "inspect" "26b7dba2116dfbc13ee6b4f57524e96e9d61046de8113d927e240435b8a41252"` [INFO] running `"docker" "rm" "-f" "26b7dba2116dfbc13ee6b4f57524e96e9d61046de8113d927e240435b8a41252"` [INFO] [stdout] 26b7dba2116dfbc13ee6b4f57524e96e9d61046de8113d927e240435b8a41252 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 74ad827e7be7d831aa9705e666acc3f6dc63417b5433baa44576213dd41cd5b5 [INFO] running `"docker" "start" "-a" "74ad827e7be7d831aa9705e666acc3f6dc63417b5433baa44576213dd41cd5b5"` [INFO] [stderr] Compiling euler v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2117:25 [INFO] [stderr] | [INFO] [stderr] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [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/solutions.rs:2354:13 [INFO] [stderr] | [INFO] [stderr] 2354 | let mut a = 100-i; [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/solutions.rs:2357:17 [INFO] [stderr] | [INFO] [stderr] 2357 | let mut b = 100-j; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_factors` [INFO] [stderr] --> src/factors.rs:205:5 [INFO] [stderr] | [INFO] [stderr] 205 | fn test_factors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_divisor_count` [INFO] [stderr] --> src/factors.rs:215:5 [INFO] [stderr] | [INFO] [stderr] 215 | fn test_divisor_count() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_proper_divisors` [INFO] [stderr] --> src/factors.rs:226:5 [INFO] [stderr] | [INFO] [stderr] 226 | fn test_proper_divisors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_sum_of_proper_divisors` [INFO] [stderr] --> src/factors.rs:238:5 [INFO] [stderr] | [INFO] [stderr] 238 | fn test_sum_of_proper_divisors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.84s [INFO] running `"docker" "inspect" "74ad827e7be7d831aa9705e666acc3f6dc63417b5433baa44576213dd41cd5b5"` [INFO] running `"docker" "rm" "-f" "74ad827e7be7d831aa9705e666acc3f6dc63417b5433baa44576213dd41cd5b5"` [INFO] [stdout] 74ad827e7be7d831aa9705e666acc3f6dc63417b5433baa44576213dd41cd5b5 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DarrenRJ/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" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] b70f0e03db597e9441cdbf2cdeed05265c80a0b6cd2bf3e42c6443d5e56b7562 [INFO] running `"docker" "start" "-a" "b70f0e03db597e9441cdbf2cdeed05265c80a0b6cd2bf3e42c6443d5e56b7562"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/crater/target/debug/deps/euler-774d3fa801d75839 [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test choose::test::test_choose ... ok [INFO] [stdout] test factors::test::test_prime_factors ... 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" "b70f0e03db597e9441cdbf2cdeed05265c80a0b6cd2bf3e42c6443d5e56b7562"` [INFO] running `"docker" "rm" "-f" "b70f0e03db597e9441cdbf2cdeed05265c80a0b6cd2bf3e42c6443d5e56b7562"` [INFO] [stdout] b70f0e03db597e9441cdbf2cdeed05265c80a0b6cd2bf3e42c6443d5e56b7562