[INFO] updating cached repository LothTikar/rusty_playlist_maker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LothTikar/rusty_playlist_maker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LothTikar/rusty_playlist_maker" "work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LothTikar/rusty_playlist_maker" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LothTikar/rusty_playlist_maker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LothTikar/rusty_playlist_maker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ada27d2ceadbb90eff2a52d42e454837aefd48e6
[INFO] sha for GitHub repo LothTikar/rusty_playlist_maker: ada27d2ceadbb90eff2a52d42e454837aefd48e6
[INFO] validating manifest of LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker
[INFO] finished frobbing LothTikar/rusty_playlist_maker
[INFO] frobbed toml for LothTikar/rusty_playlist_maker written to work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker/Cargo.toml
[INFO] started frobbing LothTikar/rusty_playlist_maker
[INFO] finished frobbing LothTikar/rusty_playlist_maker
[INFO] frobbed toml for LothTikar/rusty_playlist_maker written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LothTikar/rusty_playlist_maker/Cargo.toml
[INFO] crate LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6be32cd715f615f784346bfb9be26b0fd99c1f6514055062d60cd6058a7413bf
[INFO] running `"docker" "start" "-a" "6be32cd715f615f784346bfb9be26b0fd99c1f6514055062d60cd6058a7413bf"`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.1
[INFO] [stderr]    Compiling rusty_playlist_maker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         file.write_all((i + "\n").as_bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             file.write_all(format!("{}\n", i).as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.00s
[INFO] running `"docker" "inspect" "6be32cd715f615f784346bfb9be26b0fd99c1f6514055062d60cd6058a7413bf"`
[INFO] running `"docker" "rm" "-f" "6be32cd715f615f784346bfb9be26b0fd99c1f6514055062d60cd6058a7413bf"`
[INFO] [stdout] 6be32cd715f615f784346bfb9be26b0fd99c1f6514055062d60cd6058a7413bf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ea2f1d557b2e6b9f388932e2fa53517fad8723ed652990fc92318c5899d993b0
[INFO] running `"docker" "start" "-a" "ea2f1d557b2e6b9f388932e2fa53517fad8723ed652990fc92318c5899d993b0"`
[INFO] [stderr]    Compiling rusty_playlist_maker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         file.write_all((i + "\n").as_bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             file.write_all(format!("{}\n", i).as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "ea2f1d557b2e6b9f388932e2fa53517fad8723ed652990fc92318c5899d993b0"`
[INFO] running `"docker" "rm" "-f" "ea2f1d557b2e6b9f388932e2fa53517fad8723ed652990fc92318c5899d993b0"`
[INFO] [stdout] ea2f1d557b2e6b9f388932e2fa53517fad8723ed652990fc92318c5899d993b0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LothTikar/rusty_playlist_maker:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f44fcb5473581544b34d460f5012d42e63cc34bb249dfdd90926dbf9ae271b71
[INFO] running `"docker" "start" "-a" "f44fcb5473581544b34d460f5012d42e63cc34bb249dfdd90926dbf9ae271b71"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_playlist_maker-4b7aba235aa4f661
[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" "f44fcb5473581544b34d460f5012d42e63cc34bb249dfdd90926dbf9ae271b71"`
[INFO] running `"docker" "rm" "-f" "f44fcb5473581544b34d460f5012d42e63cc34bb249dfdd90926dbf9ae271b71"`
[INFO] [stdout] f44fcb5473581544b34d460f5012d42e63cc34bb249dfdd90926dbf9ae271b71