[INFO] updating cached repository aquacadabra/manga-downloader
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aquacadabra/manga-downloader
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aquacadabra/manga-downloader" "work/ex/beta-1.38-1/sources/1.37.0/gh/aquacadabra/manga-downloader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aquacadabra/manga-downloader'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aquacadabra/manga-downloader" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aquacadabra/manga-downloader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aquacadabra/manga-downloader'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d8af3f54c319fcd23ef680c25303d68f1299c999
[INFO] sha for GitHub repo aquacadabra/manga-downloader: d8af3f54c319fcd23ef680c25303d68f1299c999
[INFO] validating manifest of aquacadabra/manga-downloader 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 aquacadabra/manga-downloader 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 aquacadabra/manga-downloader
[INFO] finished frobbing aquacadabra/manga-downloader
[INFO] frobbed toml for aquacadabra/manga-downloader written to work/ex/beta-1.38-1/sources/1.37.0/gh/aquacadabra/manga-downloader/Cargo.toml
[INFO] started frobbing aquacadabra/manga-downloader
[INFO] finished frobbing aquacadabra/manga-downloader
[INFO] frobbed toml for aquacadabra/manga-downloader written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aquacadabra/manga-downloader/Cargo.toml
[INFO] crate aquacadabra/manga-downloader 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/aquacadabra/manga-downloader/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[INFO] the lockfile is outdated, regenerating it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] testing aquacadabra/manga-downloader 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-0/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/aquacadabra/manga-downloader:/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] 78f1da743870d271dcee88bf537d11516ac2bb0af38d6446e3da8816c7c58a92
[INFO] running `"docker" "start" "-a" "78f1da743870d271dcee88bf537d11516ac2bb0af38d6446e3da8816c7c58a92"`
[INFO] [stderr]    Compiling rc v0.1.1
[INFO] [stderr]    Compiling bit-set v0.2.0
[INFO] [stderr]    Compiling tendril v0.1.6
[INFO] [stderr]    Compiling cookie v0.2.5
[INFO] [stderr]    Compiling html5ever v0.2.11
[INFO] [stderr]    Compiling hyper v0.7.2
[INFO] [stderr]    Compiling select v0.2.2
[INFO] [stderr]    Compiling manga-downloader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fs::create_dir_all(path.as_path());    
[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]     Finished dev [unoptimized + debuginfo] target(s) in 18.67s
[INFO] running `"docker" "inspect" "78f1da743870d271dcee88bf537d11516ac2bb0af38d6446e3da8816c7c58a92"`
[INFO] running `"docker" "rm" "-f" "78f1da743870d271dcee88bf537d11516ac2bb0af38d6446e3da8816c7c58a92"`
[INFO] [stdout] 78f1da743870d271dcee88bf537d11516ac2bb0af38d6446e3da8816c7c58a92
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/aquacadabra/manga-downloader:/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] 99c6cae28e31f2f1c3bdde1e300a139aec257c2c0c398b14ae0c52bb65804cd3
[INFO] running `"docker" "start" "-a" "99c6cae28e31f2f1c3bdde1e300a139aec257c2c0c398b14ae0c52bb65804cd3"`
[INFO] [stderr]    Compiling manga-downloader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fs::create_dir_all(path.as_path());    
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "99c6cae28e31f2f1c3bdde1e300a139aec257c2c0c398b14ae0c52bb65804cd3"`
[INFO] running `"docker" "rm" "-f" "99c6cae28e31f2f1c3bdde1e300a139aec257c2c0c398b14ae0c52bb65804cd3"`
[INFO] [stdout] 99c6cae28e31f2f1c3bdde1e300a139aec257c2c0c398b14ae0c52bb65804cd3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/aquacadabra/manga-downloader:/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] c17de3191b7cbcc603d696bec74930ca39988fc900de55fb370892a2b60719ff
[INFO] running `"docker" "start" "-a" "c17de3191b7cbcc603d696bec74930ca39988fc900de55fb370892a2b60719ff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/manga_downloader-e70fbbdaf21e6eca
[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" "c17de3191b7cbcc603d696bec74930ca39988fc900de55fb370892a2b60719ff"`
[INFO] running `"docker" "rm" "-f" "c17de3191b7cbcc603d696bec74930ca39988fc900de55fb370892a2b60719ff"`
[INFO] [stdout] c17de3191b7cbcc603d696bec74930ca39988fc900de55fb370892a2b60719ff