[INFO] updating cached repository williamyaoh/flip
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/williamyaoh/flip
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/williamyaoh/flip" "work/ex/beta-1.37-6/sources/1.36.0/gh/williamyaoh/flip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/williamyaoh/flip'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/williamyaoh/flip" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0fc56d7968201cdb3a8b3da5dfe2809671c2b197
[INFO] sha for GitHub repo williamyaoh/flip: 0fc56d7968201cdb3a8b3da5dfe2809671c2b197
[INFO] validating manifest of williamyaoh/flip on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of williamyaoh/flip on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing williamyaoh/flip
[INFO] finished frobbing williamyaoh/flip
[INFO] frobbed toml for williamyaoh/flip written to work/ex/beta-1.37-6/sources/1.36.0/gh/williamyaoh/flip/Cargo.toml
[INFO] started frobbing williamyaoh/flip
[INFO] finished frobbing williamyaoh/flip
[INFO] frobbed toml for williamyaoh/flip written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip/Cargo.toml
[INFO] crate williamyaoh/flip already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing williamyaoh/flip against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 17fb7471dcd286edf5f5b7f15c3b9f72eef4c0c23a4d1ea3ac971d13f774fd8a
[INFO] running `"docker" "start" "-a" "17fb7471dcd286edf5f5b7f15c3b9f72eef4c0c23a4d1ea3ac971d13f774fd8a"`
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling arg_input v1.0.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling flip v1.0.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.66s
[INFO] running `"docker" "inspect" "17fb7471dcd286edf5f5b7f15c3b9f72eef4c0c23a4d1ea3ac971d13f774fd8a"`
[INFO] running `"docker" "rm" "-f" "17fb7471dcd286edf5f5b7f15c3b9f72eef4c0c23a4d1ea3ac971d13f774fd8a"`
[INFO] [stdout] 17fb7471dcd286edf5f5b7f15c3b9f72eef4c0c23a4d1ea3ac971d13f774fd8a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2bc38d7e0b428e8580fa82a3a09eadf1b4cf23c4e15207f7117eb3b7dc42f6a7
[INFO] running `"docker" "start" "-a" "2bc38d7e0b428e8580fa82a3a09eadf1b4cf23c4e15207f7117eb3b7dc42f6a7"`
[INFO] [stderr]    Compiling flip v1.0.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "2bc38d7e0b428e8580fa82a3a09eadf1b4cf23c4e15207f7117eb3b7dc42f6a7"`
[INFO] running `"docker" "rm" "-f" "2bc38d7e0b428e8580fa82a3a09eadf1b4cf23c4e15207f7117eb3b7dc42f6a7"`
[INFO] [stdout] 2bc38d7e0b428e8580fa82a3a09eadf1b4cf23c4e15207f7117eb3b7dc42f6a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/williamyaoh/flip:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 15c1d78380a16b812c854c78a56de152311704c51b467ff30faf7b460cfa841a
[INFO] running `"docker" "start" "-a" "15c1d78380a16b812c854c78a56de152311704c51b467ff30faf7b460cfa841a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/flip-fb1644230849d4bd
[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" "15c1d78380a16b812c854c78a56de152311704c51b467ff30faf7b460cfa841a"`
[INFO] running `"docker" "rm" "-f" "15c1d78380a16b812c854c78a56de152311704c51b467ff30faf7b460cfa841a"`
[INFO] [stdout] 15c1d78380a16b812c854c78a56de152311704c51b467ff30faf7b460cfa841a