[INFO] updating cached repository AndrewGaspar/pngs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AndrewGaspar/pngs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AndrewGaspar/pngs" "work/ex/beta-1.37-6/sources/1.36.0/gh/AndrewGaspar/pngs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AndrewGaspar/pngs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AndrewGaspar/pngs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46e3bf31dbc51c2851ee52e6b95378360097414e
[INFO] sha for GitHub repo AndrewGaspar/pngs: 46e3bf31dbc51c2851ee52e6b95378360097414e
[INFO] validating manifest of AndrewGaspar/pngs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AndrewGaspar/pngs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AndrewGaspar/pngs
[INFO] finished frobbing AndrewGaspar/pngs
[INFO] frobbed toml for AndrewGaspar/pngs written to work/ex/beta-1.37-6/sources/1.36.0/gh/AndrewGaspar/pngs/Cargo.toml
[INFO] started frobbing AndrewGaspar/pngs
[INFO] finished frobbing AndrewGaspar/pngs
[INFO] frobbed toml for AndrewGaspar/pngs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs/Cargo.toml
[INFO] crate AndrewGaspar/pngs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing AndrewGaspar/pngs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] fe3462f8214ca91e39264782fc98e9ee2deb36000b46d332ad74a044d7d72b92
[INFO] running `"docker" "start" "-a" "fe3462f8214ca91e39264782fc98e9ee2deb36000b46d332ad74a044d7d72b92"`
[INFO] [stderr]    Compiling pngs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/raw.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn fill_buffer(buffer: &mut Read, bytes: &mut [u8]) -> Result<()> {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "fe3462f8214ca91e39264782fc98e9ee2deb36000b46d332ad74a044d7d72b92"`
[INFO] running `"docker" "rm" "-f" "fe3462f8214ca91e39264782fc98e9ee2deb36000b46d332ad74a044d7d72b92"`
[INFO] [stdout] fe3462f8214ca91e39264782fc98e9ee2deb36000b46d332ad74a044d7d72b92
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 71af8b03f622546393080611cbb01a2f0797b892599dd7f10402f98478e9e2d4
[INFO] running `"docker" "start" "-a" "71af8b03f622546393080611cbb01a2f0797b892599dd7f10402f98478e9e2d4"`
[INFO] [stderr]    Compiling pngs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/raw.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn fill_buffer(buffer: &mut Read, bytes: &mut [u8]) -> Result<()> {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "71af8b03f622546393080611cbb01a2f0797b892599dd7f10402f98478e9e2d4"`
[INFO] running `"docker" "rm" "-f" "71af8b03f622546393080611cbb01a2f0797b892599dd7f10402f98478e9e2d4"`
[INFO] [stdout] 71af8b03f622546393080611cbb01a2f0797b892599dd7f10402f98478e9e2d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AndrewGaspar/pngs:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 251837c351d511f1b893770ab1bd16164473a80ea2e831671f2883172c465fcd
[INFO] running `"docker" "start" "-a" "251837c351d511f1b893770ab1bd16164473a80ea2e831671f2883172c465fcd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pngs-551017e2f9af45a4
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test raw::tests::standard_chunks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-01cac0de3f2b65a3
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test known_png ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pngs
[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" "251837c351d511f1b893770ab1bd16164473a80ea2e831671f2883172c465fcd"`
[INFO] running `"docker" "rm" "-f" "251837c351d511f1b893770ab1bd16164473a80ea2e831671f2883172c465fcd"`
[INFO] [stdout] 251837c351d511f1b893770ab1bd16164473a80ea2e831671f2883172c465fcd