[INFO] updating cached repository OddBloke/podcast-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/OddBloke/podcast-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/OddBloke/podcast-generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/OddBloke/podcast-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/OddBloke/podcast-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/OddBloke/podcast-generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OddBloke/podcast-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OddBloke/podcast-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 289f1ec183bc031c0ab213ee2cdf50be0994e57a
[INFO] sha for GitHub repo OddBloke/podcast-generator: 289f1ec183bc031c0ab213ee2cdf50be0994e57a
[INFO] validating manifest of OddBloke/podcast-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 OddBloke/podcast-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 OddBloke/podcast-generator
[INFO] finished frobbing OddBloke/podcast-generator
[INFO] frobbed toml for OddBloke/podcast-generator written to work/ex/beta-1.38-1/sources/1.37.0/gh/OddBloke/podcast-generator/Cargo.toml
[INFO] started frobbing OddBloke/podcast-generator
[INFO] finished frobbing OddBloke/podcast-generator
[INFO] frobbed toml for OddBloke/podcast-generator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/OddBloke/podcast-generator/Cargo.toml
[INFO] crate OddBloke/podcast-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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/OddBloke/podcast-generator/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing OddBloke/podcast-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/OddBloke/podcast-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] 7e18e58dd549577a31088e7cdea45ed0461e5d7ac567cdf26f0f5909fc94c5c9
[INFO] running `"docker" "start" "-a" "7e18e58dd549577a31088e7cdea45ed0461e5d7ac567cdf26f0f5909fc94c5c9"`
[INFO] [stderr]    Compiling podcast-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `podcast`
[INFO] [stderr]   --> src/podcast.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn create_podcast_xml<W: io::Write>(podcast: Podcast, writer: &mut W) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_podcast`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Podcast`
[INFO] [stderr]   --> src/podcast.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Podcast {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_podcast_xml`
[INFO] [stderr]   --> src/podcast.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn create_podcast_xml<W: io::Write>(podcast: Podcast, writer: &mut W) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         writer.write_fmt(format_args!("{}\n", podcast_item.name));
[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/podcast.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     writer.write(start_doc_event);
[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 1.85s
[INFO] running `"docker" "inspect" "7e18e58dd549577a31088e7cdea45ed0461e5d7ac567cdf26f0f5909fc94c5c9"`
[INFO] running `"docker" "rm" "-f" "7e18e58dd549577a31088e7cdea45ed0461e5d7ac567cdf26f0f5909fc94c5c9"`
[INFO] [stdout] 7e18e58dd549577a31088e7cdea45ed0461e5d7ac567cdf26f0f5909fc94c5c9
[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/OddBloke/podcast-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] 01b363b06507f1b02200ce11e060d67e570674e1cb47c7f6552f5c524b9597d7
[INFO] running `"docker" "start" "-a" "01b363b06507f1b02200ce11e060d67e570674e1cb47c7f6552f5c524b9597d7"`
[INFO] [stderr]    Compiling podcast-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `podcast`
[INFO] [stderr]   --> src/podcast.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn create_podcast_xml<W: io::Write>(podcast: Podcast, writer: &mut W) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_podcast`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         writer.write_fmt(format_args!("{}\n", podcast_item.name));
[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/podcast.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     writer.write(start_doc_event);
[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 2.63s
[INFO] running `"docker" "inspect" "01b363b06507f1b02200ce11e060d67e570674e1cb47c7f6552f5c524b9597d7"`
[INFO] running `"docker" "rm" "-f" "01b363b06507f1b02200ce11e060d67e570674e1cb47c7f6552f5c524b9597d7"`
[INFO] [stdout] 01b363b06507f1b02200ce11e060d67e570674e1cb47c7f6552f5c524b9597d7
[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/OddBloke/podcast-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] 53c43e55c0d04049f91b5e8ef7082ee796fbc7eaf07ebe41a634ef8c128458fb
[INFO] running `"docker" "start" "-a" "53c43e55c0d04049f91b5e8ef7082ee796fbc7eaf07ebe41a634ef8c128458fb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/podcast_generator-85c3dcbbe31c6725
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test collect::test::list_empty_directory ... ok
[INFO] [stdout] test collect::test::list_nonexistent_directory_returns_error ... ok
[INFO] [stdout] test collect::test::filenames_returned_as_names ... ok
[INFO] [stdout] test collect::test::non_extension_files_ignored ... ok
[INFO] [stdout] test podcast::test::test_empty_podcast_produces_empty_xml ... ok
[INFO] [stdout] test collect::test::non_mp3_files_ignored ... ok
[INFO] [stdout] test collect::test::list_single_item ... ok
[INFO] [stdout] test test::test_empty_existing_directory ... ok
[INFO] [stdout] test test::test_single_file ... ok
[INFO] [stdout] test test::test_multiple_files ... ok
[INFO] [stdout] test test::test_non_mp3_files ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "53c43e55c0d04049f91b5e8ef7082ee796fbc7eaf07ebe41a634ef8c128458fb"`
[INFO] running `"docker" "rm" "-f" "53c43e55c0d04049f91b5e8ef7082ee796fbc7eaf07ebe41a634ef8c128458fb"`
[INFO] [stdout] 53c43e55c0d04049f91b5e8ef7082ee796fbc7eaf07ebe41a634ef8c128458fb