[INFO] updating cached repository terakun/type_inference
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/terakun/type_inference
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/terakun/type_inference" "work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/terakun/type_inference" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakun/type_inference"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakun/type_inference'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 076e33d711085981661e2995f1be376a1c367077
[INFO] sha for GitHub repo terakun/type_inference: 076e33d711085981661e2995f1be376a1c367077
[INFO] validating manifest of terakun/type_inference 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 terakun/type_inference 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 terakun/type_inference
[INFO] finished frobbing terakun/type_inference
[INFO] frobbed toml for terakun/type_inference written to work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference/Cargo.toml
[INFO] started frobbing terakun/type_inference
[INFO] finished frobbing terakun/type_inference
[INFO] frobbed toml for terakun/type_inference written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/terakun/type_inference/Cargo.toml
[INFO] crate terakun/type_inference 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 terakun/type_inference against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f007d3f61e94e37ba9e44295e04548d9c7ce91c68ee976e8128493d3f6cab219
[INFO] running `"docker" "start" "-a" "f007d3f61e94e37ba9e44295e04548d9c7ce91c68ee976e8128493d3f6cab219"`
[INFO] [stderr]    Compiling type_inference v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/ast.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Bool(bool),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `"docker" "inspect" "f007d3f61e94e37ba9e44295e04548d9c7ce91c68ee976e8128493d3f6cab219"`
[INFO] running `"docker" "rm" "-f" "f007d3f61e94e37ba9e44295e04548d9c7ce91c68ee976e8128493d3f6cab219"`
[INFO] [stdout] f007d3f61e94e37ba9e44295e04548d9c7ce91c68ee976e8128493d3f6cab219
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0cd73ab081df1636867619f78bbdd532eabf2f1c7bb0f752cccd30dfc52bf988
[INFO] running `"docker" "start" "-a" "0cd73ab081df1636867619f78bbdd532eabf2f1c7bb0f752cccd30dfc52bf988"`
[INFO] [stderr]    Compiling type_inference v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/ast.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Bool(bool),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "0cd73ab081df1636867619f78bbdd532eabf2f1c7bb0f752cccd30dfc52bf988"`
[INFO] running `"docker" "rm" "-f" "0cd73ab081df1636867619f78bbdd532eabf2f1c7bb0f752cccd30dfc52bf988"`
[INFO] [stdout] 0cd73ab081df1636867619f78bbdd532eabf2f1c7bb0f752cccd30dfc52bf988
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/terakun/type_inference:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2d11e0bc79279d61dc3c69b6275d41ec761e5332ffed88b196d84a05233796af
[INFO] running `"docker" "start" "-a" "2d11e0bc79279d61dc3c69b6275d41ec761e5332ffed88b196d84a05233796af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/type_inference-b0a1407f4ba0e281
[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" "2d11e0bc79279d61dc3c69b6275d41ec761e5332ffed88b196d84a05233796af"`
[INFO] running `"docker" "rm" "-f" "2d11e0bc79279d61dc3c69b6275d41ec761e5332ffed88b196d84a05233796af"`
[INFO] [stdout] 2d11e0bc79279d61dc3c69b6275d41ec761e5332ffed88b196d84a05233796af