[INFO] updating cached repository LooMaclin/repro_rust_plugin_bug_create_module
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LooMaclin/repro_rust_plugin_bug_create_module
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LooMaclin/repro_rust_plugin_bug_create_module" "work/ex/beta-1.37-6/sources/1.36.0/gh/LooMaclin/repro_rust_plugin_bug_create_module"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/LooMaclin/repro_rust_plugin_bug_create_module'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LooMaclin/repro_rust_plugin_bug_create_module" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LooMaclin/repro_rust_plugin_bug_create_module"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LooMaclin/repro_rust_plugin_bug_create_module'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f7b8fab9f81abebf0d54fbd6f60a3d592fbfc37
[INFO] sha for GitHub repo LooMaclin/repro_rust_plugin_bug_create_module: 4f7b8fab9f81abebf0d54fbd6f60a3d592fbfc37
[INFO] validating manifest of LooMaclin/repro_rust_plugin_bug_create_module 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 LooMaclin/repro_rust_plugin_bug_create_module 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 LooMaclin/repro_rust_plugin_bug_create_module
[INFO] finished frobbing LooMaclin/repro_rust_plugin_bug_create_module
[INFO] frobbed toml for LooMaclin/repro_rust_plugin_bug_create_module written to work/ex/beta-1.37-6/sources/1.36.0/gh/LooMaclin/repro_rust_plugin_bug_create_module/Cargo.toml
[INFO] started frobbing LooMaclin/repro_rust_plugin_bug_create_module
[INFO] finished frobbing LooMaclin/repro_rust_plugin_bug_create_module
[INFO] frobbed toml for LooMaclin/repro_rust_plugin_bug_create_module written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LooMaclin/repro_rust_plugin_bug_create_module/Cargo.toml
[INFO] crate LooMaclin/repro_rust_plugin_bug_create_module 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing LooMaclin/repro_rust_plugin_bug_create_module 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-7/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/LooMaclin/repro_rust_plugin_bug_create_module:/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] 28fb9d03a8d8b4570e1402a9410f9c9a02bc21859ecd8259919d110ef55fc1f0
[INFO] running `"docker" "start" "-a" "28fb9d03a8d8b4570e1402a9410f9c9a02bc21859ecd8259919d110ef55fc1f0"`
[INFO] [stderr]    Compiling repro_rust_plugin_bug v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `b`
[INFO] [stderr]  --> src/a.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod b; // alt+enter on `b`, select `create module file`. result: nothing happens
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either a/b.rs or a/b/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 `repro_rust_plugin_bug`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "28fb9d03a8d8b4570e1402a9410f9c9a02bc21859ecd8259919d110ef55fc1f0"`
[INFO] running `"docker" "rm" "-f" "28fb9d03a8d8b4570e1402a9410f9c9a02bc21859ecd8259919d110ef55fc1f0"`
[INFO] [stdout] 28fb9d03a8d8b4570e1402a9410f9c9a02bc21859ecd8259919d110ef55fc1f0