[INFO] updating cached repository yuki-takeichi/reveldb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yuki-takeichi/reveldb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yuki-takeichi/reveldb" "work/ex/beta-1.38-1/sources/1.37.0/gh/yuki-takeichi/reveldb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yuki-takeichi/reveldb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yuki-takeichi/reveldb" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuki-takeichi/reveldb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuki-takeichi/reveldb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a15ef9ffd4d7b8b6f5dcb940a905fdf24cc7bef2
[INFO] sha for GitHub repo yuki-takeichi/reveldb: a15ef9ffd4d7b8b6f5dcb940a905fdf24cc7bef2
[INFO] validating manifest of yuki-takeichi/reveldb 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 yuki-takeichi/reveldb 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 yuki-takeichi/reveldb
[INFO] finished frobbing yuki-takeichi/reveldb
[INFO] frobbed toml for yuki-takeichi/reveldb written to work/ex/beta-1.38-1/sources/1.37.0/gh/yuki-takeichi/reveldb/Cargo.toml
[INFO] started frobbing yuki-takeichi/reveldb
[INFO] finished frobbing yuki-takeichi/reveldb
[INFO] frobbed toml for yuki-takeichi/reveldb written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuki-takeichi/reveldb/Cargo.toml
[INFO] crate yuki-takeichi/reveldb 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 yuki-takeichi/reveldb 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yuki-takeichi/reveldb:/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] fa86479eda0c1ca503f9f8100cefdceeb4e1e89c5d4b513c747e9185f3dd4cd4
[INFO] running `"docker" "start" "-a" "fa86479eda0c1ca503f9f8100cefdceeb4e1e89c5d4b513c747e9185f3dd4cd4"`
[INFO] [stderr]    Compiling typed-arena v1.3.0
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling reveldb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `log`
[INFO] [stderr]   --> src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | mod log;
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: name the file either log.rs or log/mod.rs inside the directory "src"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: Could not compile `reveldb`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fa86479eda0c1ca503f9f8100cefdceeb4e1e89c5d4b513c747e9185f3dd4cd4"`
[INFO] running `"docker" "rm" "-f" "fa86479eda0c1ca503f9f8100cefdceeb4e1e89c5d4b513c747e9185f3dd4cd4"`
[INFO] [stdout] fa86479eda0c1ca503f9f8100cefdceeb4e1e89c5d4b513c747e9185f3dd4cd4