[INFO] updating cached repository fbernier/rshell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fbernier/rshell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fbernier/rshell" "work/ex/beta-1.38-1/sources/1.37.0/gh/fbernier/rshell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fbernier/rshell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fbernier/rshell" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fbernier/rshell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fbernier/rshell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25691d100fc0a24e0958482a17220f88e7ca6158
[INFO] sha for GitHub repo fbernier/rshell: 25691d100fc0a24e0958482a17220f88e7ca6158
[INFO] validating manifest of fbernier/rshell 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 fbernier/rshell 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 fbernier/rshell
[INFO] finished frobbing fbernier/rshell
[INFO] frobbed toml for fbernier/rshell written to work/ex/beta-1.38-1/sources/1.37.0/gh/fbernier/rshell/Cargo.toml
[INFO] started frobbing fbernier/rshell
[INFO] finished frobbing fbernier/rshell
[INFO] frobbed toml for fbernier/rshell written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fbernier/rshell/Cargo.toml
[INFO] crate fbernier/rshell 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 fbernier/rshell 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-2/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/fbernier/rshell:/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] 2a35bed88a73ebac03ba3d888af62dbbbd35226da06690888dc574e9eef051ad
[INFO] running `"docker" "start" "-a" "2a35bed88a73ebac03ba3d888af62dbbbd35226da06690888dc574e9eef051ad"`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling rshell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `builtin`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | mod builtin;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either builtin.rs or builtin/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 `rshell`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2a35bed88a73ebac03ba3d888af62dbbbd35226da06690888dc574e9eef051ad"`
[INFO] running `"docker" "rm" "-f" "2a35bed88a73ebac03ba3d888af62dbbbd35226da06690888dc574e9eef051ad"`
[INFO] [stdout] 2a35bed88a73ebac03ba3d888af62dbbbd35226da06690888dc574e9eef051ad