[INFO] updating cached repository dgnsrekt/learning-rust-by-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dgnsrekt/learning-rust-by-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dgnsrekt/learning-rust-by-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/dgnsrekt/learning-rust-by-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dgnsrekt/learning-rust-by-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dgnsrekt/learning-rust-by-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dgnsrekt/learning-rust-by-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dgnsrekt/learning-rust-by-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ccc3b39abd327d3ba3084a14e453a99e3a5254c9
[INFO] sha for GitHub repo dgnsrekt/learning-rust-by-example: ccc3b39abd327d3ba3084a14e453a99e3a5254c9
[INFO] validating manifest of dgnsrekt/learning-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 dgnsrekt/learning-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 dgnsrekt/learning-rust-by-example
[INFO] finished frobbing dgnsrekt/learning-rust-by-example
[INFO] frobbed toml for dgnsrekt/learning-rust-by-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/dgnsrekt/learning-rust-by-example/Cargo.toml
[INFO] started frobbing dgnsrekt/learning-rust-by-example
[INFO] finished frobbing dgnsrekt/learning-rust-by-example
[INFO] frobbed toml for dgnsrekt/learning-rust-by-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dgnsrekt/learning-rust-by-example/Cargo.toml
[INFO] crate dgnsrekt/learning-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 dgnsrekt/learning-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-0/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/dgnsrekt/learning-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] 3ea5dabefc4919cbfa687e26e71a5836442656b85f3d734688c16fe81aa8ad7c
[INFO] running `"docker" "start" "-a" "3ea5dabefc4919cbfa687e26e71a5836442656b85f3d734688c16fe81aa8ad7c"`
[INFO] [stderr]    Compiling learning-rust-by-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "3ea5dabefc4919cbfa687e26e71a5836442656b85f3d734688c16fe81aa8ad7c"`
[INFO] running `"docker" "rm" "-f" "3ea5dabefc4919cbfa687e26e71a5836442656b85f3d734688c16fe81aa8ad7c"`
[INFO] [stdout] 3ea5dabefc4919cbfa687e26e71a5836442656b85f3d734688c16fe81aa8ad7c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/dgnsrekt/learning-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] 053e9d18063cb0cf7a03f9727bafc8ae121fdf8c4f3193206b8d34132b2ba913
[INFO] running `"docker" "start" "-a" "053e9d18063cb0cf7a03f9727bafc8ae121fdf8c4f3193206b8d34132b2ba913"`
[INFO] [stderr]    Compiling learning-rust-by-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "053e9d18063cb0cf7a03f9727bafc8ae121fdf8c4f3193206b8d34132b2ba913"`
[INFO] running `"docker" "rm" "-f" "053e9d18063cb0cf7a03f9727bafc8ae121fdf8c4f3193206b8d34132b2ba913"`
[INFO] [stdout] 053e9d18063cb0cf7a03f9727bafc8ae121fdf8c4f3193206b8d34132b2ba913
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/dgnsrekt/learning-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] 0d4e1ae12522eb10c7a72fc768ccf4673e5e9703839c654a11e046904ae92b3a
[INFO] running `"docker" "start" "-a" "0d4e1ae12522eb10c7a72fc768ccf4673e5e9703839c654a11e046904ae92b3a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning_rust_by_example-865b66dc73be4d11
[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" "0d4e1ae12522eb10c7a72fc768ccf4673e5e9703839c654a11e046904ae92b3a"`
[INFO] running `"docker" "rm" "-f" "0d4e1ae12522eb10c7a72fc768ccf4673e5e9703839c654a11e046904ae92b3a"`
[INFO] [stdout] 0d4e1ae12522eb10c7a72fc768ccf4673e5e9703839c654a11e046904ae92b3a