[INFO] updating cached repository wgreenberg/rs-git
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wgreenberg/rs-git
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wgreenberg/rs-git" "work/ex/beta-1.38-1/sources/1.37.0/gh/wgreenberg/rs-git"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wgreenberg/rs-git'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wgreenberg/rs-git" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wgreenberg/rs-git"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wgreenberg/rs-git'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 195d9bde3ff0a4f4d5a7728cf64a255d1e2331f2
[INFO] sha for GitHub repo wgreenberg/rs-git: 195d9bde3ff0a4f4d5a7728cf64a255d1e2331f2
[INFO] validating manifest of wgreenberg/rs-git 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 wgreenberg/rs-git 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 wgreenberg/rs-git
[INFO] finished frobbing wgreenberg/rs-git
[INFO] frobbed toml for wgreenberg/rs-git written to work/ex/beta-1.38-1/sources/1.37.0/gh/wgreenberg/rs-git/Cargo.toml
[INFO] started frobbing wgreenberg/rs-git
[INFO] finished frobbing wgreenberg/rs-git
[INFO] frobbed toml for wgreenberg/rs-git written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wgreenberg/rs-git/Cargo.toml
[INFO] crate wgreenberg/rs-git 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 wgreenberg/rs-git 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-6/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/wgreenberg/rs-git:/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] 2ce9cd50ff99c01dc857bc4d88a3e2aea02b18583dd090301a0be8971e0ade03
[INFO] running `"docker" "start" "-a" "2ce9cd50ff99c01dc857bc4d88a3e2aea02b18583dd090301a0be8971e0ade03"`
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rs-git v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Tree`
[INFO] [stderr]   --> src/repo.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let tree = Tree::new(entries);
[INFO] [stderr]    |                    ^^^^ use of undeclared type or module `Tree`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `rs-git`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2ce9cd50ff99c01dc857bc4d88a3e2aea02b18583dd090301a0be8971e0ade03"`
[INFO] running `"docker" "rm" "-f" "2ce9cd50ff99c01dc857bc4d88a3e2aea02b18583dd090301a0be8971e0ade03"`
[INFO] [stdout] 2ce9cd50ff99c01dc857bc4d88a3e2aea02b18583dd090301a0be8971e0ade03