[INFO] updating cached repository slme9364/melody-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/slme9364/melody-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/slme9364/melody-generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/slme9364/melody-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/slme9364/melody-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/slme9364/melody-generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slme9364/melody-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slme9364/melody-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11f07e09663c53f2c2f3e0bf0c2e381b8ee954c6
[INFO] sha for GitHub repo slme9364/melody-generator: 11f07e09663c53f2c2f3e0bf0c2e381b8ee954c6
[INFO] validating manifest of slme9364/melody-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 slme9364/melody-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 slme9364/melody-generator
[INFO] finished frobbing slme9364/melody-generator
[INFO] frobbed toml for slme9364/melody-generator written to work/ex/beta-1.38-1/sources/1.37.0/gh/slme9364/melody-generator/Cargo.toml
[INFO] started frobbing slme9364/melody-generator
[INFO] finished frobbing slme9364/melody-generator
[INFO] frobbed toml for slme9364/melody-generator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slme9364/melody-generator/Cargo.toml
[INFO] crate slme9364/melody-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 slme9364/melody-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-2/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/slme9364/melody-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] 71cd8cef14b44e93d51912f24e3ccf9c234dac1dbc86248461b24c50977d3591
[INFO] running `"docker" "start" "-a" "71cd8cef14b44e93d51912f24e3ccf9c234dac1dbc86248461b24c50977d3591"`
[INFO] [stderr]    Compiling melody-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     for i in 0..16 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "71cd8cef14b44e93d51912f24e3ccf9c234dac1dbc86248461b24c50977d3591"`
[INFO] running `"docker" "rm" "-f" "71cd8cef14b44e93d51912f24e3ccf9c234dac1dbc86248461b24c50977d3591"`
[INFO] [stdout] 71cd8cef14b44e93d51912f24e3ccf9c234dac1dbc86248461b24c50977d3591
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/slme9364/melody-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] 84d9f555db0053824e8901d43013c0cc9b5311a65a749947de4592a8fe31f167
[INFO] running `"docker" "start" "-a" "84d9f555db0053824e8901d43013c0cc9b5311a65a749947de4592a8fe31f167"`
[INFO] [stderr]    Compiling melody-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     for i in 0..16 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "84d9f555db0053824e8901d43013c0cc9b5311a65a749947de4592a8fe31f167"`
[INFO] running `"docker" "rm" "-f" "84d9f555db0053824e8901d43013c0cc9b5311a65a749947de4592a8fe31f167"`
[INFO] [stdout] 84d9f555db0053824e8901d43013c0cc9b5311a65a749947de4592a8fe31f167
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/slme9364/melody-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] 4f768f352880f1078b1e606aaad96df30139421ff40b26bd7b290f31c91678b8
[INFO] running `"docker" "start" "-a" "4f768f352880f1078b1e606aaad96df30139421ff40b26bd7b290f31c91678b8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[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] [stderr]      Running /opt/crater/target/debug/deps/melody_generator-805549991d44d000
[INFO] running `"docker" "inspect" "4f768f352880f1078b1e606aaad96df30139421ff40b26bd7b290f31c91678b8"`
[INFO] running `"docker" "rm" "-f" "4f768f352880f1078b1e606aaad96df30139421ff40b26bd7b290f31c91678b8"`
[INFO] [stdout] 4f768f352880f1078b1e606aaad96df30139421ff40b26bd7b290f31c91678b8