[INFO] updating cached repository Sparkmasterflex/quad_videos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Sparkmasterflex/quad_videos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Sparkmasterflex/quad_videos" "work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Sparkmasterflex/quad_videos" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sparkmasterflex/quad_videos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sparkmasterflex/quad_videos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 69428e4cf0086ad669c434873747aa462e149e2c
[INFO] sha for GitHub repo Sparkmasterflex/quad_videos: 69428e4cf0086ad669c434873747aa462e149e2c
[INFO] validating manifest of Sparkmasterflex/quad_videos 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 Sparkmasterflex/quad_videos 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 Sparkmasterflex/quad_videos
[INFO] finished frobbing Sparkmasterflex/quad_videos
[INFO] frobbed toml for Sparkmasterflex/quad_videos written to work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos/Cargo.toml
[INFO] started frobbing Sparkmasterflex/quad_videos
[INFO] finished frobbing Sparkmasterflex/quad_videos
[INFO] frobbed toml for Sparkmasterflex/quad_videos written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sparkmasterflex/quad_videos/Cargo.toml
[INFO] crate Sparkmasterflex/quad_videos 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 Sparkmasterflex/quad_videos 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos:/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] 8d274727797d6e3fbb076e4f1cb404f1b3a164e51ad4a6a38455ea4b3c2dfaf4
[INFO] running `"docker" "start" "-a" "8d274727797d6e3fbb076e4f1cb404f1b3a164e51ad4a6a38455ea4b3c2dfaf4"`
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling quad_videos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:7
[INFO] [stderr]     |
[INFO] [stderr] 110 |       fs::rename(&display, &with_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 4.04s
[INFO] running `"docker" "inspect" "8d274727797d6e3fbb076e4f1cb404f1b3a164e51ad4a6a38455ea4b3c2dfaf4"`
[INFO] running `"docker" "rm" "-f" "8d274727797d6e3fbb076e4f1cb404f1b3a164e51ad4a6a38455ea4b3c2dfaf4"`
[INFO] [stdout] 8d274727797d6e3fbb076e4f1cb404f1b3a164e51ad4a6a38455ea4b3c2dfaf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos:/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] 96b4c8daf7f1e06436d23c8983a4f8e759e33fbc634b694382f3f79fa83daa67
[INFO] running `"docker" "start" "-a" "96b4c8daf7f1e06436d23c8983a4f8e759e33fbc634b694382f3f79fa83daa67"`
[INFO] [stderr]    Compiling quad_videos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:7
[INFO] [stderr]     |
[INFO] [stderr] 110 |       fs::rename(&display, &with_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 0.82s
[INFO] running `"docker" "inspect" "96b4c8daf7f1e06436d23c8983a4f8e759e33fbc634b694382f3f79fa83daa67"`
[INFO] running `"docker" "rm" "-f" "96b4c8daf7f1e06436d23c8983a4f8e759e33fbc634b694382f3f79fa83daa67"`
[INFO] [stdout] 96b4c8daf7f1e06436d23c8983a4f8e759e33fbc634b694382f3f79fa83daa67
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sparkmasterflex/quad_videos:/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] 7f752e3ff753a5d63535170ec1054eec6e1c2fa2cd1c7ff6e0b68af948fe0fa4
[INFO] running `"docker" "start" "-a" "7f752e3ff753a5d63535170ec1054eec6e1c2fa2cd1c7ff6e0b68af948fe0fa4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quad_videos-cfd0ef10f26a543b
[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" "7f752e3ff753a5d63535170ec1054eec6e1c2fa2cd1c7ff6e0b68af948fe0fa4"`
[INFO] running `"docker" "rm" "-f" "7f752e3ff753a5d63535170ec1054eec6e1c2fa2cd1c7ff6e0b68af948fe0fa4"`
[INFO] [stdout] 7f752e3ff753a5d63535170ec1054eec6e1c2fa2cd1c7ff6e0b68af948fe0fa4