[INFO] updating cached repository za-rudeboy/rust_excercise
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/za-rudeboy/rust_excercise
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/za-rudeboy/rust_excercise" "work/ex/beta-1.37-6/sources/1.36.0/gh/za-rudeboy/rust_excercise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/za-rudeboy/rust_excercise'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/za-rudeboy/rust_excercise" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/za-rudeboy/rust_excercise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/za-rudeboy/rust_excercise'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e5aa891424f9ede181c4d2a0ddc7ac5b384c501
[INFO] sha for GitHub repo za-rudeboy/rust_excercise: 0e5aa891424f9ede181c4d2a0ddc7ac5b384c501
[INFO] validating manifest of za-rudeboy/rust_excercise 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 za-rudeboy/rust_excercise 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 za-rudeboy/rust_excercise
[INFO] finished frobbing za-rudeboy/rust_excercise
[INFO] frobbed toml for za-rudeboy/rust_excercise written to work/ex/beta-1.37-6/sources/1.36.0/gh/za-rudeboy/rust_excercise/Cargo.toml
[INFO] started frobbing za-rudeboy/rust_excercise
[INFO] finished frobbing za-rudeboy/rust_excercise
[INFO] frobbed toml for za-rudeboy/rust_excercise written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/za-rudeboy/rust_excercise/Cargo.toml
[INFO] crate za-rudeboy/rust_excercise 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 za-rudeboy/rust_excercise 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/za-rudeboy/rust_excercise:/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] b7797fb84e207468b5b9109988b4a369d3f0ec69a7ad16d2b88d888a2521030f
[INFO] running `"docker" "start" "-a" "b7797fb84e207468b5b9109988b4a369d3f0ec69a7ad16d2b88d888a2521030f"`
[INFO] [stderr]    Compiling exercise v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `second`
[INFO] [stderr]   --> src/main.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn simple_calculator(first: String, second: String) {
[INFO] [stderr]    |                                     ^^^^^^ help: consider prefixing with an underscore: `_second`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_characters`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn count_characters(s: String) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_quotes`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn print_quotes(quote: String) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `madlib`
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn madlib(noun: String, verb: String, adjective: String, adverb: String) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_calculator`
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn simple_calculator(first: String, second: String) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "b7797fb84e207468b5b9109988b4a369d3f0ec69a7ad16d2b88d888a2521030f"`
[INFO] running `"docker" "rm" "-f" "b7797fb84e207468b5b9109988b4a369d3f0ec69a7ad16d2b88d888a2521030f"`
[INFO] [stdout] b7797fb84e207468b5b9109988b4a369d3f0ec69a7ad16d2b88d888a2521030f
[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/za-rudeboy/rust_excercise:/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] aa94eb18b9d74ef0f27d333332d127bcfd97acd7f8da0c39d01da9a718d53124
[INFO] running `"docker" "start" "-a" "aa94eb18b9d74ef0f27d333332d127bcfd97acd7f8da0c39d01da9a718d53124"`
[INFO] [stderr]    Compiling exercise v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `second`
[INFO] [stderr]   --> src/main.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn simple_calculator(first: String, second: String) {
[INFO] [stderr]    |                                     ^^^^^^ help: consider prefixing with an underscore: `_second`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "aa94eb18b9d74ef0f27d333332d127bcfd97acd7f8da0c39d01da9a718d53124"`
[INFO] running `"docker" "rm" "-f" "aa94eb18b9d74ef0f27d333332d127bcfd97acd7f8da0c39d01da9a718d53124"`
[INFO] [stdout] aa94eb18b9d74ef0f27d333332d127bcfd97acd7f8da0c39d01da9a718d53124
[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/za-rudeboy/rust_excercise:/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] 295eb95f8440306f284b5455c983d52ab445cd13226d17c7e64e41fdae93b4e4
[INFO] running `"docker" "start" "-a" "295eb95f8440306f284b5455c983d52ab445cd13226d17c7e64e41fdae93b4e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exercise-8a367a855c5ede4a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::should_calculate_numbers ... ok
[INFO] [stdout] test tests::should_count_characters ... ok
[INFO] [stdout] test tests::should_madlib ... ok
[INFO] [stdout] test tests::should_print_quote ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "295eb95f8440306f284b5455c983d52ab445cd13226d17c7e64e41fdae93b4e4"`
[INFO] running `"docker" "rm" "-f" "295eb95f8440306f284b5455c983d52ab445cd13226d17c7e64e41fdae93b4e4"`
[INFO] [stdout] 295eb95f8440306f284b5455c983d52ab445cd13226d17c7e64e41fdae93b4e4