[INFO] cloning repository https://github.com/DarrenRJ/Euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DarrenRJ/Euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0a4561ac291899ec025d0ab9f95dbc2dd7a2bbf
[INFO] testing DarrenRJ/Euler against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DarrenRJ/Euler on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DarrenRJ/Euler
[INFO] finished tweaking git repo https://github.com/DarrenRJ/Euler
[INFO] tweaked toml for git repo https://github.com/DarrenRJ/Euler written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/DarrenRJ/Euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ffac39432b5424da5e8ee83a8d1f688dcd769c46508363353b7e7f88156d264
[INFO] running `Command { std: "docker" "start" "-a" "2ffac39432b5424da5e8ee83a8d1f688dcd769c46508363353b7e7f88156d264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ffac39432b5424da5e8ee83a8d1f688dcd769c46508363353b7e7f88156d264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffac39432b5424da5e8ee83a8d1f688dcd769c46508363353b7e7f88156d264", kill_on_drop: false }`
[INFO] [stdout] 2ffac39432b5424da5e8ee83a8d1f688dcd769c46508363353b7e7f88156d264
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de07d6391627e1ab40bed5ee22d8c7b48b49d842c4d5ed7118ec58d6da3a492b
[INFO] running `Command { std: "docker" "start" "-a" "de07d6391627e1ab40bed5ee22d8c7b48b49d842c4d5ed7118ec58d6da3a492b", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming v0.1.3
[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/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.90s
[INFO] running `Command { std: "docker" "inspect" "de07d6391627e1ab40bed5ee22d8c7b48b49d842c4d5ed7118ec58d6da3a492b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de07d6391627e1ab40bed5ee22d8c7b48b49d842c4d5ed7118ec58d6da3a492b", kill_on_drop: false }`
[INFO] [stdout] de07d6391627e1ab40bed5ee22d8c7b48b49d842c4d5ed7118ec58d6da3a492b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e3c9b2446a9e1a14fea675d11f2644c6c4b032ccc97bd30eb343c5152e70557
[INFO] running `Command { std: "docker" "start" "-a" "8e3c9b2446a9e1a14fea675d11f2644c6c4b032ccc97bd30eb343c5152e70557", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_factors`
[INFO] [stdout]    --> src/factors.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn test_factors() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_divisor_count`
[INFO] [stdout]    --> src/factors.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn test_divisor_count() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_proper_divisors`
[INFO] [stdout]    --> src/factors.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn test_proper_divisors() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_sum_of_proper_divisors`
[INFO] [stdout]    --> src/factors.rs:200:8
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn test_sum_of_proper_divisors() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "8e3c9b2446a9e1a14fea675d11f2644c6c4b032ccc97bd30eb343c5152e70557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3c9b2446a9e1a14fea675d11f2644c6c4b032ccc97bd30eb343c5152e70557", kill_on_drop: false }`
[INFO] [stdout] 8e3c9b2446a9e1a14fea675d11f2644c6c4b032ccc97bd30eb343c5152e70557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eeda5f39c608609edff709214f749e74e824d1f3324d005ecad0be5ece3a3e3a
[INFO] running `Command { std: "docker" "start" "-a" "eeda5f39c608609edff709214f749e74e824d1f3324d005ecad0be5ece3a3e3a", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `test_factors`
[INFO] [stderr]    --> src/factors.rs:170:8
[INFO] [stderr]     |
[INFO] [stderr] 170 |     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:179:8
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn test_divisor_count() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_proper_divisors`
[INFO] [stderr]    --> src/factors.rs:189:8
[INFO] [stderr]     |
[INFO] [stderr] 189 |     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:200:8
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn test_sum_of_proper_divisors() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `euler` (bin "euler" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/euler-26d005f9900cd9b8)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test factors::test::test_prime_factors ... ok
[INFO] [stdout] test choose::test::test_choose ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eeda5f39c608609edff709214f749e74e824d1f3324d005ecad0be5ece3a3e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeda5f39c608609edff709214f749e74e824d1f3324d005ecad0be5ece3a3e3a", kill_on_drop: false }`
[INFO] [stdout] eeda5f39c608609edff709214f749e74e824d1f3324d005ecad0be5ece3a3e3a