[INFO] updating cached repository ExcaliburZero/png-extractor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ExcaliburZero/png-extractor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ExcaliburZero/png-extractor" "work/ex/beta-1.38-1/sources/1.37.0/gh/ExcaliburZero/png-extractor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ExcaliburZero/png-extractor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ExcaliburZero/png-extractor" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ExcaliburZero/png-extractor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ExcaliburZero/png-extractor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 833c1154c4334b0cd08da572817e837c6ebbc965
[INFO] sha for GitHub repo ExcaliburZero/png-extractor: 833c1154c4334b0cd08da572817e837c6ebbc965
[INFO] validating manifest of ExcaliburZero/png-extractor 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 ExcaliburZero/png-extractor 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 ExcaliburZero/png-extractor
[INFO] finished frobbing ExcaliburZero/png-extractor
[INFO] frobbed toml for ExcaliburZero/png-extractor written to work/ex/beta-1.38-1/sources/1.37.0/gh/ExcaliburZero/png-extractor/Cargo.toml
[INFO] started frobbing ExcaliburZero/png-extractor
[INFO] finished frobbing ExcaliburZero/png-extractor
[INFO] frobbed toml for ExcaliburZero/png-extractor written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ExcaliburZero/png-extractor/Cargo.toml
[INFO] crate ExcaliburZero/png-extractor 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 ExcaliburZero/png-extractor 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-6/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/ExcaliburZero/png-extractor:/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] f8c4ee1169a08ea380e758e5f063c18d46417a7e29b16cac08cf276cd50b4caf
[INFO] running `"docker" "start" "-a" "f8c4ee1169a08ea380e758e5f063c18d46417a7e29b16cac08cf276cd50b4caf"`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling png-extractor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `"docker" "inspect" "f8c4ee1169a08ea380e758e5f063c18d46417a7e29b16cac08cf276cd50b4caf"`
[INFO] running `"docker" "rm" "-f" "f8c4ee1169a08ea380e758e5f063c18d46417a7e29b16cac08cf276cd50b4caf"`
[INFO] [stdout] f8c4ee1169a08ea380e758e5f063c18d46417a7e29b16cac08cf276cd50b4caf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/ExcaliburZero/png-extractor:/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] db1dd485119539a2dcf64c81cb56ae542279eea9ad9f0ec0b863ae2ab181fbfb
[INFO] running `"docker" "start" "-a" "db1dd485119539a2dcf64c81cb56ae542279eea9ad9f0ec0b863ae2ab181fbfb"`
[INFO] [stderr]    Compiling png-extractor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "db1dd485119539a2dcf64c81cb56ae542279eea9ad9f0ec0b863ae2ab181fbfb"`
[INFO] running `"docker" "rm" "-f" "db1dd485119539a2dcf64c81cb56ae542279eea9ad9f0ec0b863ae2ab181fbfb"`
[INFO] [stdout] db1dd485119539a2dcf64c81cb56ae542279eea9ad9f0ec0b863ae2ab181fbfb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/ExcaliburZero/png-extractor:/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] c9ebe1a3887af6347f10549648eaee91b733d6ee69f56d1eb05f58c9046db7a9
[INFO] running `"docker" "start" "-a" "c9ebe1a3887af6347f10549648eaee91b733d6ee69f56d1eb05f58c9046db7a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/png_extractor-1143ccff0b297cf8
[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" "c9ebe1a3887af6347f10549648eaee91b733d6ee69f56d1eb05f58c9046db7a9"`
[INFO] running `"docker" "rm" "-f" "c9ebe1a3887af6347f10549648eaee91b733d6ee69f56d1eb05f58c9046db7a9"`
[INFO] [stdout] c9ebe1a3887af6347f10549648eaee91b733d6ee69f56d1eb05f58c9046db7a9