[INFO] updating cached repository wraikny/playground_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wraikny/playground_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wraikny/playground_rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/wraikny/playground_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wraikny/playground_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wraikny/playground_rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wraikny/playground_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wraikny/playground_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e85a142170a410b8e28be098dd252c89b87a161
[INFO] sha for GitHub repo wraikny/playground_rs: 1e85a142170a410b8e28be098dd252c89b87a161
[INFO] validating manifest of wraikny/playground_rs 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 wraikny/playground_rs 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 wraikny/playground_rs
[INFO] finished frobbing wraikny/playground_rs
[INFO] frobbed toml for wraikny/playground_rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/wraikny/playground_rs/Cargo.toml
[INFO] started frobbing wraikny/playground_rs
[INFO] finished frobbing wraikny/playground_rs
[INFO] frobbed toml for wraikny/playground_rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wraikny/playground_rs/Cargo.toml
[INFO] crate wraikny/playground_rs 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 wraikny/playground_rs 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/wraikny/playground_rs:/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] 7f72a4192ddc54d4464713599f91b2e303fc5ab2bd6112921b9126548b8c8f6d
[INFO] running `"docker" "start" "-a" "7f72a4192ddc54d4464713599f91b2e303fc5ab2bd6112921b9126548b8c8f6d"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "7f72a4192ddc54d4464713599f91b2e303fc5ab2bd6112921b9126548b8c8f6d"`
[INFO] running `"docker" "rm" "-f" "7f72a4192ddc54d4464713599f91b2e303fc5ab2bd6112921b9126548b8c8f6d"`
[INFO] [stdout] 7f72a4192ddc54d4464713599f91b2e303fc5ab2bd6112921b9126548b8c8f6d
[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/wraikny/playground_rs:/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] 76f0b836f31320f3d6616557c18303087ccd04f4672906b0acda45fe863791d3
[INFO] running `"docker" "start" "-a" "76f0b836f31320f3d6616557c18303087ccd04f4672906b0acda45fe863791d3"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "76f0b836f31320f3d6616557c18303087ccd04f4672906b0acda45fe863791d3"`
[INFO] running `"docker" "rm" "-f" "76f0b836f31320f3d6616557c18303087ccd04f4672906b0acda45fe863791d3"`
[INFO] [stdout] 76f0b836f31320f3d6616557c18303087ccd04f4672906b0acda45fe863791d3
[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/wraikny/playground_rs:/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] 32c8327d4c0aa9ffa7a2a8245530fe38ecba11f8a1edea25c0565f4238e1daa1
[INFO] running `"docker" "start" "-a" "32c8327d4c0aa9ffa7a2a8245530fe38ecba11f8a1edea25c0565f4238e1daa1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-daca7ed55ccf6de1
[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]      Running /opt/crater/target/debug/deps/playground-08c72a00d6ebcd6e
[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 playground
[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" "32c8327d4c0aa9ffa7a2a8245530fe38ecba11f8a1edea25c0565f4238e1daa1"`
[INFO] running `"docker" "rm" "-f" "32c8327d4c0aa9ffa7a2a8245530fe38ecba11f8a1edea25c0565f4238e1daa1"`
[INFO] [stdout] 32c8327d4c0aa9ffa7a2a8245530fe38ecba11f8a1edea25c0565f4238e1daa1