[INFO] updating cached repository yupferris/ans-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yupferris/ans-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yupferris/ans-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/yupferris/ans-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yupferris/ans-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yupferris/ans-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yupferris/ans-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yupferris/ans-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a92d5aa8c47b32f4edc65b1032407b1107cd0fe3
[INFO] sha for GitHub repo yupferris/ans-playground: a92d5aa8c47b32f4edc65b1032407b1107cd0fe3
[INFO] validating manifest of yupferris/ans-playground 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 yupferris/ans-playground 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 yupferris/ans-playground
[INFO] finished frobbing yupferris/ans-playground
[INFO] frobbed toml for yupferris/ans-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/yupferris/ans-playground/Cargo.toml
[INFO] started frobbing yupferris/ans-playground
[INFO] finished frobbing yupferris/ans-playground
[INFO] frobbed toml for yupferris/ans-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yupferris/ans-playground/Cargo.toml
[INFO] crate yupferris/ans-playground 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 yupferris/ans-playground 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-1/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/yupferris/ans-playground:/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] 84c9b910b531394b9ce3d06bfebd2af99c0f568d7b16d5bde7afcb306d3edb58
[INFO] running `"docker" "start" "-a" "84c9b910b531394b9ce3d06bfebd2af99c0f568d7b16d5bde7afcb306d3edb58"`
[INFO] [stderr]    Compiling ans-playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "84c9b910b531394b9ce3d06bfebd2af99c0f568d7b16d5bde7afcb306d3edb58"`
[INFO] running `"docker" "rm" "-f" "84c9b910b531394b9ce3d06bfebd2af99c0f568d7b16d5bde7afcb306d3edb58"`
[INFO] [stdout] 84c9b910b531394b9ce3d06bfebd2af99c0f568d7b16d5bde7afcb306d3edb58
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yupferris/ans-playground:/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] f90b467fab0521382cc282a6129b5a1792d96bbb4a2ca59b97ef85697c28b48d
[INFO] running `"docker" "start" "-a" "f90b467fab0521382cc282a6129b5a1792d96bbb4a2ca59b97ef85697c28b48d"`
[INFO] [stderr]    Compiling ans-playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "f90b467fab0521382cc282a6129b5a1792d96bbb4a2ca59b97ef85697c28b48d"`
[INFO] running `"docker" "rm" "-f" "f90b467fab0521382cc282a6129b5a1792d96bbb4a2ca59b97ef85697c28b48d"`
[INFO] [stdout] f90b467fab0521382cc282a6129b5a1792d96bbb4a2ca59b97ef85697c28b48d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yupferris/ans-playground:/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] b71a15391bac32ff94c0fae4e4a66fa78cccde13d5a3c12a29c2756855d31a93
[INFO] running `"docker" "start" "-a" "b71a15391bac32ff94c0fae4e4a66fa78cccde13d5a3c12a29c2756855d31a93"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ans_playground-aa59291c89cdff02
[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" "b71a15391bac32ff94c0fae4e4a66fa78cccde13d5a3c12a29c2756855d31a93"`
[INFO] running `"docker" "rm" "-f" "b71a15391bac32ff94c0fae4e4a66fa78cccde13d5a3c12a29c2756855d31a93"`
[INFO] [stdout] b71a15391bac32ff94c0fae4e4a66fa78cccde13d5a3c12a29c2756855d31a93