[INFO] updating cached repository ryandbair/rust-ffmpeg-jpeg-sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ryandbair/rust-ffmpeg-jpeg-sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ryandbair/rust-ffmpeg-jpeg-sample" "work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ryandbair/rust-ffmpeg-jpeg-sample" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryandbair/rust-ffmpeg-jpeg-sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryandbair/rust-ffmpeg-jpeg-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb7e7efe8657cb886a8d99f520b30bc797fcd90a
[INFO] sha for GitHub repo ryandbair/rust-ffmpeg-jpeg-sample: cb7e7efe8657cb886a8d99f520b30bc797fcd90a
[INFO] validating manifest of ryandbair/rust-ffmpeg-jpeg-sample 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 ryandbair/rust-ffmpeg-jpeg-sample 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 ryandbair/rust-ffmpeg-jpeg-sample
[INFO] removed path dependency ffmpeg from ryandbair/rust-ffmpeg-jpeg-sample
[INFO] finished frobbing ryandbair/rust-ffmpeg-jpeg-sample
[INFO] frobbed toml for ryandbair/rust-ffmpeg-jpeg-sample written to work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample/Cargo.toml
[INFO] started frobbing ryandbair/rust-ffmpeg-jpeg-sample
[INFO] removed path dependency ffmpeg from ryandbair/rust-ffmpeg-jpeg-sample
[INFO] finished frobbing ryandbair/rust-ffmpeg-jpeg-sample
[INFO] frobbed toml for ryandbair/rust-ffmpeg-jpeg-sample written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ryandbair/rust-ffmpeg-jpeg-sample/Cargo.toml
[INFO] crate ryandbair/rust-ffmpeg-jpeg-sample 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]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample/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 ryandbair/rust-ffmpeg-jpeg-sample against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 056f9c40ba68b189c7bc97cfe6357b95f1e8cca08af1f7c77af1eabb5995c7b7
[INFO] running `"docker" "start" "-a" "056f9c40ba68b189c7bc97cfe6357b95f1e8cca08af1f7c77af1eabb5995c7b7"`
[INFO] [stderr] warning: dependency (ffmpeg) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling lzw v0.9.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling gif v0.7.0
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling ffmpeg-sys v2.8.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling png v0.4.3
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling ffmpeg v0.2.0-alpha.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.7.2
[INFO] [stderr]    Compiling ffmpeg-jpeg v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 writeln!(&mut std::io::stderr(), "got a frame, size is: {}x{}", frame.width(), frame.height());
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.65s
[INFO] running `"docker" "inspect" "056f9c40ba68b189c7bc97cfe6357b95f1e8cca08af1f7c77af1eabb5995c7b7"`
[INFO] running `"docker" "rm" "-f" "056f9c40ba68b189c7bc97cfe6357b95f1e8cca08af1f7c77af1eabb5995c7b7"`
[INFO] [stdout] 056f9c40ba68b189c7bc97cfe6357b95f1e8cca08af1f7c77af1eabb5995c7b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5df72c6f44ed83fc0b24b096f2257a652268a54e4ae3cc35efc21e054eaf3cf4
[INFO] running `"docker" "start" "-a" "5df72c6f44ed83fc0b24b096f2257a652268a54e4ae3cc35efc21e054eaf3cf4"`
[INFO] [stderr] warning: dependency (ffmpeg) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling ffmpeg-jpeg v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 writeln!(&mut std::io::stderr(), "got a frame, size is: {}x{}", frame.width(), frame.height());
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "5df72c6f44ed83fc0b24b096f2257a652268a54e4ae3cc35efc21e054eaf3cf4"`
[INFO] running `"docker" "rm" "-f" "5df72c6f44ed83fc0b24b096f2257a652268a54e4ae3cc35efc21e054eaf3cf4"`
[INFO] [stdout] 5df72c6f44ed83fc0b24b096f2257a652268a54e4ae3cc35efc21e054eaf3cf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ryandbair/rust-ffmpeg-jpeg-sample:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 6c6725db9ce6bb055729b82e8a66bf39ae8e2ed9be7d97af51182f73ab7e95cb
[INFO] running `"docker" "start" "-a" "6c6725db9ce6bb055729b82e8a66bf39ae8e2ed9be7d97af51182f73ab7e95cb"`
[INFO] [stderr] warning: dependency (ffmpeg) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ffmpeg_jpeg-324682d3f2f47fcb
[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" "6c6725db9ce6bb055729b82e8a66bf39ae8e2ed9be7d97af51182f73ab7e95cb"`
[INFO] running `"docker" "rm" "-f" "6c6725db9ce6bb055729b82e8a66bf39ae8e2ed9be7d97af51182f73ab7e95cb"`
[INFO] [stdout] 6c6725db9ce6bb055729b82e8a66bf39ae8e2ed9be7d97af51182f73ab7e95cb