[INFO] updating cached repository booyaa/read_bytes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/booyaa/read_bytes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/booyaa/read_bytes" "work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/booyaa/read_bytes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/booyaa/read_bytes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/booyaa/read_bytes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b5a2ef7969111d3a614c607b2758d8b3f265bdba
[INFO] sha for GitHub repo booyaa/read_bytes: b5a2ef7969111d3a614c607b2758d8b3f265bdba
[INFO] validating manifest of booyaa/read_bytes 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 booyaa/read_bytes 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 booyaa/read_bytes
[INFO] finished frobbing booyaa/read_bytes
[INFO] frobbed toml for booyaa/read_bytes written to work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes/Cargo.toml
[INFO] started frobbing booyaa/read_bytes
[INFO] finished frobbing booyaa/read_bytes
[INFO] frobbed toml for booyaa/read_bytes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/booyaa/read_bytes/Cargo.toml
[INFO] crate booyaa/read_bytes 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 booyaa/read_bytes 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes:/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] 9a306367d0f0e650ef9fa5b5efe5d8ea2a69cfad01518b36c01957c14573263d
[INFO] running `"docker" "start" "-a" "9a306367d0f0e650ef9fa5b5efe5d8ea2a69cfad01518b36c01957c14573263d"`
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling read_bytes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / error_chain! {
[INFO] [stderr] 9  | |     foreign_links {
[INFO] [stderr] 10 | |         Io(std::io::Error);
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `"docker" "inspect" "9a306367d0f0e650ef9fa5b5efe5d8ea2a69cfad01518b36c01957c14573263d"`
[INFO] running `"docker" "rm" "-f" "9a306367d0f0e650ef9fa5b5efe5d8ea2a69cfad01518b36c01957c14573263d"`
[INFO] [stdout] 9a306367d0f0e650ef9fa5b5efe5d8ea2a69cfad01518b36c01957c14573263d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes:/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] 90ac69483286041198329e3e8e23ffbf8b455fc9987ae3d5d4ee86bcd638ec1b
[INFO] running `"docker" "start" "-a" "90ac69483286041198329e3e8e23ffbf8b455fc9987ae3d5d4ee86bcd638ec1b"`
[INFO] [stderr]    Compiling read_bytes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / error_chain! {
[INFO] [stderr] 9  | |     foreign_links {
[INFO] [stderr] 10 | |         Io(std::io::Error);
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "90ac69483286041198329e3e8e23ffbf8b455fc9987ae3d5d4ee86bcd638ec1b"`
[INFO] running `"docker" "rm" "-f" "90ac69483286041198329e3e8e23ffbf8b455fc9987ae3d5d4ee86bcd638ec1b"`
[INFO] [stdout] 90ac69483286041198329e3e8e23ffbf8b455fc9987ae3d5d4ee86bcd638ec1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/booyaa/read_bytes:/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] 922ce81343f53b98203d5044f2888d0f6e97ff5c85f1ef1bec0a7c6079c9019f
[INFO] running `"docker" "start" "-a" "922ce81343f53b98203d5044f2888d0f6e97ff5c85f1ef1bec0a7c6079c9019f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/read_bytes-dc7d0c3eaca25775
[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" "922ce81343f53b98203d5044f2888d0f6e97ff5c85f1ef1bec0a7c6079c9019f"`
[INFO] running `"docker" "rm" "-f" "922ce81343f53b98203d5044f2888d0f6e97ff5c85f1ef1bec0a7c6079c9019f"`
[INFO] [stdout] 922ce81343f53b98203d5044f2888d0f6e97ff5c85f1ef1bec0a7c6079c9019f