[INFO] crate aci_png 0.8.0-pre0 is already in cache
[INFO] extracting crate aci_png 0.8.0-pre0 into work/ex/beta-1.37-6/sources/1.36.0/reg/aci_png/0.8.0-pre0
[INFO] extracting crate aci_png 0.8.0-pre0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aci_png/0.8.0-pre0
[INFO] validating manifest of aci_png-0.8.0-pre0 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 aci_png-0.8.0-pre0 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 aci_png-0.8.0-pre0
[INFO] finished frobbing aci_png-0.8.0-pre0
[INFO] frobbed toml for aci_png-0.8.0-pre0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/aci_png/0.8.0-pre0/Cargo.toml
[INFO] started frobbing aci_png-0.8.0-pre0
[INFO] finished frobbing aci_png-0.8.0-pre0
[INFO] frobbed toml for aci_png-0.8.0-pre0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aci_png/0.8.0-pre0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 aci_png-0.8.0-pre0 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-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aci_png/0.8.0-pre0:/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] 2f7a6803bcf61cff51494d8f9f90ea62fe7005934ac605cb623b74d5dee5e69e
[INFO] running `"docker" "start" "-a" "2f7a6803bcf61cff51494d8f9f90ea62fe7005934ac605cb623b74d5dee5e69e"`
[INFO] [stderr]    Compiling afi v0.8.0-pre0
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/png.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "2f7a6803bcf61cff51494d8f9f90ea62fe7005934ac605cb623b74d5dee5e69e"`
[INFO] running `"docker" "rm" "-f" "2f7a6803bcf61cff51494d8f9f90ea62fe7005934ac605cb623b74d5dee5e69e"`
[INFO] [stdout] 2f7a6803bcf61cff51494d8f9f90ea62fe7005934ac605cb623b74d5dee5e69e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aci_png/0.8.0-pre0:/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] 6ede0a0608dcb7085f728ce068d2222e5fbe83cdc35b1434bb24654671df3f64
[INFO] running `"docker" "start" "-a" "6ede0a0608dcb7085f728ce068d2222e5fbe83cdc35b1434bb24654671df3f64"`
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/png.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "6ede0a0608dcb7085f728ce068d2222e5fbe83cdc35b1434bb24654671df3f64"`
[INFO] running `"docker" "rm" "-f" "6ede0a0608dcb7085f728ce068d2222e5fbe83cdc35b1434bb24654671df3f64"`
[INFO] [stdout] 6ede0a0608dcb7085f728ce068d2222e5fbe83cdc35b1434bb24654671df3f64
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aci_png/0.8.0-pre0:/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] c9d67492dbc397ba16e70fac27ea449a15894f0ae8a1e6f48340bb1fc9de5a75
[INFO] running `"docker" "start" "-a" "c9d67492dbc397ba16e70fac27ea449a15894f0ae8a1e6f48340bb1fc9de5a75"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aci_png-4505798a2e8a35dd
[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] [stderr]    Doc-tests aci_png
[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" "c9d67492dbc397ba16e70fac27ea449a15894f0ae8a1e6f48340bb1fc9de5a75"`
[INFO] running `"docker" "rm" "-f" "c9d67492dbc397ba16e70fac27ea449a15894f0ae8a1e6f48340bb1fc9de5a75"`
[INFO] [stdout] c9d67492dbc397ba16e70fac27ea449a15894f0ae8a1e6f48340bb1fc9de5a75