[INFO] updating cached repository lrssnn/chord_generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lrssnn/chord_generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lrssnn/chord_generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/lrssnn/chord_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lrssnn/chord_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lrssnn/chord_generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 872dcf33be3eada3f7c05de67120bd066b496f78
[INFO] sha for GitHub repo lrssnn/chord_generator: 872dcf33be3eada3f7c05de67120bd066b496f78
[INFO] validating manifest of lrssnn/chord_generator 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 lrssnn/chord_generator 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 lrssnn/chord_generator
[INFO] finished frobbing lrssnn/chord_generator
[INFO] frobbed toml for lrssnn/chord_generator written to work/ex/beta-1.38-1/sources/1.37.0/gh/lrssnn/chord_generator/Cargo.toml
[INFO] started frobbing lrssnn/chord_generator
[INFO] finished frobbing lrssnn/chord_generator
[INFO] frobbed toml for lrssnn/chord_generator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator/Cargo.toml
[INFO] crate lrssnn/chord_generator 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 lrssnn/chord_generator against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f488e07292879e4384e2a0e15be3decbe6663393bb78270814a8a0bc3be09077
[INFO] running `"docker" "start" "-a" "f488e07292879e4384e2a0e15be3decbe6663393bb78270814a8a0bc3be09077"`
[INFO] [stderr]    Compiling chord_generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `letter`
[INFO] [stderr]   --> src/note.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn letter(&self, flat:bool) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `major_scale`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn major_scale(r: Note) -> Vec<Note> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_flat_scale`
[INFO] [stderr]   --> src/main.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn is_flat_scale(scale: &Vec<Note>) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "f488e07292879e4384e2a0e15be3decbe6663393bb78270814a8a0bc3be09077"`
[INFO] running `"docker" "rm" "-f" "f488e07292879e4384e2a0e15be3decbe6663393bb78270814a8a0bc3be09077"`
[INFO] [stdout] f488e07292879e4384e2a0e15be3decbe6663393bb78270814a8a0bc3be09077
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d4f22771c0572842165ecb578ebf4042caa110744452fa4b99e154aeb6788341
[INFO] running `"docker" "start" "-a" "d4f22771c0572842165ecb578ebf4042caa110744452fa4b99e154aeb6788341"`
[INFO] [stderr]    Compiling chord_generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `letter`
[INFO] [stderr]   --> src/note.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn letter(&self, flat:bool) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `major_scale`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn major_scale(r: Note) -> Vec<Note> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_flat_scale`
[INFO] [stderr]   --> src/main.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn is_flat_scale(scale: &Vec<Note>) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "d4f22771c0572842165ecb578ebf4042caa110744452fa4b99e154aeb6788341"`
[INFO] running `"docker" "rm" "-f" "d4f22771c0572842165ecb578ebf4042caa110744452fa4b99e154aeb6788341"`
[INFO] [stdout] d4f22771c0572842165ecb578ebf4042caa110744452fa4b99e154aeb6788341
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lrssnn/chord_generator:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1fdef37577c8f4d45bff283bc8e837297aa0a3f9940370b9d03ffa51a54f3bf9
[INFO] running `"docker" "start" "-a" "1fdef37577c8f4d45bff283bc8e837297aa0a3f9940370b9d03ffa51a54f3bf9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chord_generator-d4a0fcee803afaf7
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1fdef37577c8f4d45bff283bc8e837297aa0a3f9940370b9d03ffa51a54f3bf9"`
[INFO] running `"docker" "rm" "-f" "1fdef37577c8f4d45bff283bc8e837297aa0a3f9940370b9d03ffa51a54f3bf9"`
[INFO] [stdout] 1fdef37577c8f4d45bff283bc8e837297aa0a3f9940370b9d03ffa51a54f3bf9