[INFO] updating cached repository JordanAdams/purge-modules
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JordanAdams/purge-modules
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JordanAdams/purge-modules" "work/ex/beta-1.38-1/sources/1.37.0/gh/JordanAdams/purge-modules"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JordanAdams/purge-modules'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JordanAdams/purge-modules" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JordanAdams/purge-modules"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JordanAdams/purge-modules'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d89d453d6382c4daf4287b39ce1e7fe2738837bc
[INFO] sha for GitHub repo JordanAdams/purge-modules: d89d453d6382c4daf4287b39ce1e7fe2738837bc
[INFO] validating manifest of JordanAdams/purge-modules 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 JordanAdams/purge-modules 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 JordanAdams/purge-modules
[INFO] finished frobbing JordanAdams/purge-modules
[INFO] frobbed toml for JordanAdams/purge-modules written to work/ex/beta-1.38-1/sources/1.37.0/gh/JordanAdams/purge-modules/Cargo.toml
[INFO] started frobbing JordanAdams/purge-modules
[INFO] finished frobbing JordanAdams/purge-modules
[INFO] frobbed toml for JordanAdams/purge-modules written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JordanAdams/purge-modules/Cargo.toml
[INFO] crate JordanAdams/purge-modules 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 JordanAdams/purge-modules 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JordanAdams/purge-modules:/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] 5595715ea807e49f92ad5cab58793f3847c5657aea2e9aefd369c0002154e244
[INFO] running `"docker" "start" "-a" "5595715ea807e49f92ad5cab58793f3847c5657aea2e9aefd369c0002154e244"`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling purge-node-modules v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:45:41
[INFO] [stderr]    |
[INFO] [stderr] 45 |                 remove_dir(path).expect(format!("Failed to delete {}", path.display()));
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected &str, found struct `std::string::String`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&str`
[INFO] [stderr]               found type `std::string::String`
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `purge-node-modules`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5595715ea807e49f92ad5cab58793f3847c5657aea2e9aefd369c0002154e244"`
[INFO] running `"docker" "rm" "-f" "5595715ea807e49f92ad5cab58793f3847c5657aea2e9aefd369c0002154e244"`
[INFO] [stdout] 5595715ea807e49f92ad5cab58793f3847c5657aea2e9aefd369c0002154e244