[INFO] updating cached repository jgergo/rust_by_example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jgergo/rust_by_example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jgergo/rust_by_example" "work/ex/beta-1.38-1/sources/1.37.0/gh/jgergo/rust_by_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jgergo/rust_by_example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jgergo/rust_by_example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgergo/rust_by_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgergo/rust_by_example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 039a3863379aa35c1841bd7d52cd518fda9d03fa
[INFO] sha for GitHub repo jgergo/rust_by_example: 039a3863379aa35c1841bd7d52cd518fda9d03fa
[INFO] validating manifest of jgergo/rust_by_example 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 jgergo/rust_by_example 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 jgergo/rust_by_example
[INFO] finished frobbing jgergo/rust_by_example
[INFO] frobbed toml for jgergo/rust_by_example written to work/ex/beta-1.38-1/sources/1.37.0/gh/jgergo/rust_by_example/Cargo.toml
[INFO] started frobbing jgergo/rust_by_example
[INFO] finished frobbing jgergo/rust_by_example
[INFO] frobbed toml for jgergo/rust_by_example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jgergo/rust_by_example/Cargo.toml
[INFO] crate jgergo/rust_by_example 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 jgergo/rust_by_example 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/jgergo/rust_by_example:/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] 8b06e6e5c3f398861ed06465d3007e5c5cd261bcb39efd0726a34275c9fe7d4a
[INFO] running `"docker" "start" "-a" "8b06e6e5c3f398861ed06465d3007e5c5cd261bcb39efd0726a34275c9fe7d4a"`
[INFO] [stderr]    Compiling rust_by_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "8b06e6e5c3f398861ed06465d3007e5c5cd261bcb39efd0726a34275c9fe7d4a"`
[INFO] running `"docker" "rm" "-f" "8b06e6e5c3f398861ed06465d3007e5c5cd261bcb39efd0726a34275c9fe7d4a"`
[INFO] [stdout] 8b06e6e5c3f398861ed06465d3007e5c5cd261bcb39efd0726a34275c9fe7d4a
[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/jgergo/rust_by_example:/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] 94fa6f7a764541467afab5d8ef217711af033caa0e4b05027b666fb9387fdaac
[INFO] running `"docker" "start" "-a" "94fa6f7a764541467afab5d8ef217711af033caa0e4b05027b666fb9387fdaac"`
[INFO] [stderr]    Compiling rust_by_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "94fa6f7a764541467afab5d8ef217711af033caa0e4b05027b666fb9387fdaac"`
[INFO] running `"docker" "rm" "-f" "94fa6f7a764541467afab5d8ef217711af033caa0e4b05027b666fb9387fdaac"`
[INFO] [stdout] 94fa6f7a764541467afab5d8ef217711af033caa0e4b05027b666fb9387fdaac
[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/jgergo/rust_by_example:/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] 065b0817d15cf1a928545eccb051ae6c7d6e1f12524dac17c40237451536eee9
[INFO] running `"docker" "start" "-a" "065b0817d15cf1a928545eccb051ae6c7d6e1f12524dac17c40237451536eee9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_by_example-b0ff0b78d2f35826
[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" "065b0817d15cf1a928545eccb051ae6c7d6e1f12524dac17c40237451536eee9"`
[INFO] running `"docker" "rm" "-f" "065b0817d15cf1a928545eccb051ae6c7d6e1f12524dac17c40237451536eee9"`
[INFO] [stdout] 065b0817d15cf1a928545eccb051ae6c7d6e1f12524dac17c40237451536eee9