[INFO] updating cached repository drojf/PNGHeaderScanner
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/drojf/PNGHeaderScanner
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/drojf/PNGHeaderScanner" "work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/drojf/PNGHeaderScanner" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drojf/PNGHeaderScanner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drojf/PNGHeaderScanner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b6d02eb540f7d9508e2d124ed363d9a5cb7aec9
[INFO] sha for GitHub repo drojf/PNGHeaderScanner: 7b6d02eb540f7d9508e2d124ed363d9a5cb7aec9
[INFO] validating manifest of drojf/PNGHeaderScanner 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 drojf/PNGHeaderScanner 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 drojf/PNGHeaderScanner
[INFO] finished frobbing drojf/PNGHeaderScanner
[INFO] frobbed toml for drojf/PNGHeaderScanner written to work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner/Cargo.toml
[INFO] started frobbing drojf/PNGHeaderScanner
[INFO] finished frobbing drojf/PNGHeaderScanner
[INFO] frobbed toml for drojf/PNGHeaderScanner written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drojf/PNGHeaderScanner/Cargo.toml
[INFO] crate drojf/PNGHeaderScanner 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 drojf/PNGHeaderScanner 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner:/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] c1ce87656c146b3cb0ecabf5fa0baca8eef15c5fa9ad8453dfe236ddffcc123c
[INFO] running `"docker" "start" "-a" "c1ce87656c146b3cb0ecabf5fa0baca8eef15c5fa9ad8453dfe236ddffcc123c"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling typed-arena v1.4.1
[INFO] [stderr]    Compiling rgb v0.8.13
[INFO] [stderr]    Compiling wild v2.0.1
[INFO] [stderr]    Compiling bit-vec v0.6.1
[INFO] [stderr]    Compiling cloudflare-zlib-sys v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling zopfli v0.4.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling cloudflare-zlib v0.2.2
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.2
[INFO] [stderr]    Compiling oxipng v2.2.2 (https://github.com/drojf/oxipng#a78ae0d1)
[INFO] [stderr]    Compiling png_header_scanner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "c1ce87656c146b3cb0ecabf5fa0baca8eef15c5fa9ad8453dfe236ddffcc123c"`
[INFO] running `"docker" "rm" "-f" "c1ce87656c146b3cb0ecabf5fa0baca8eef15c5fa9ad8453dfe236ddffcc123c"`
[INFO] [stdout] c1ce87656c146b3cb0ecabf5fa0baca8eef15c5fa9ad8453dfe236ddffcc123c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner:/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] c2062331890d5f327e65763b43a0f8f5ab9b6b51bd9e1496ec30f96747873f73
[INFO] running `"docker" "start" "-a" "c2062331890d5f327e65763b43a0f8f5ab9b6b51bd9e1496ec30f96747873f73"`
[INFO] [stderr]    Compiling png_header_scanner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "c2062331890d5f327e65763b43a0f8f5ab9b6b51bd9e1496ec30f96747873f73"`
[INFO] running `"docker" "rm" "-f" "c2062331890d5f327e65763b43a0f8f5ab9b6b51bd9e1496ec30f96747873f73"`
[INFO] [stdout] c2062331890d5f327e65763b43a0f8f5ab9b6b51bd9e1496ec30f96747873f73
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drojf/PNGHeaderScanner:/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] 9a22bf989a1a070c3e5555ccafb0905263fd9ac65a2f9e5403a4bb44ffd3826d
[INFO] running `"docker" "start" "-a" "9a22bf989a1a070c3e5555ccafb0905263fd9ac65a2f9e5403a4bb44ffd3826d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/png_header_scanner-79a49edbcea3206f
[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" "9a22bf989a1a070c3e5555ccafb0905263fd9ac65a2f9e5403a4bb44ffd3826d"`
[INFO] running `"docker" "rm" "-f" "9a22bf989a1a070c3e5555ccafb0905263fd9ac65a2f9e5403a4bb44ffd3826d"`
[INFO] [stdout] 9a22bf989a1a070c3e5555ccafb0905263fd9ac65a2f9e5403a4bb44ffd3826d