[INFO] updating cached repository ex0dus-0x/PolyPasswordHasher-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ex0dus-0x/PolyPasswordHasher-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ex0dus-0x/PolyPasswordHasher-Rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/PolyPasswordHasher-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/PolyPasswordHasher-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ex0dus-0x/PolyPasswordHasher-Rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/PolyPasswordHasher-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/PolyPasswordHasher-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 53d21264556819fbf0db3b0db09c57ccf37e295f
[INFO] sha for GitHub repo ex0dus-0x/PolyPasswordHasher-Rust: 53d21264556819fbf0db3b0db09c57ccf37e295f
[INFO] validating manifest of ex0dus-0x/PolyPasswordHasher-Rust 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 ex0dus-0x/PolyPasswordHasher-Rust 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 ex0dus-0x/PolyPasswordHasher-Rust
[INFO] finished frobbing ex0dus-0x/PolyPasswordHasher-Rust
[INFO] frobbed toml for ex0dus-0x/PolyPasswordHasher-Rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/PolyPasswordHasher-Rust/Cargo.toml
[INFO] started frobbing ex0dus-0x/PolyPasswordHasher-Rust
[INFO] finished frobbing ex0dus-0x/PolyPasswordHasher-Rust
[INFO] frobbed toml for ex0dus-0x/PolyPasswordHasher-Rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/PolyPasswordHasher-Rust/Cargo.toml
[INFO] crate ex0dus-0x/PolyPasswordHasher-Rust 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 ex0dus-0x/PolyPasswordHasher-Rust 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-1/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/ex0dus-0x/PolyPasswordHasher-Rust:/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] 387f85a7dae966157045b2f85f022e75e427e7a2139804070ea9788abb32986a
[INFO] running `"docker" "start" "-a" "387f85a7dae966157045b2f85f022e75e427e7a2139804070ea9788abb32986a"`
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling serde v1.0.25
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling serde_derive_internals v0.18.1
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.3.19
[INFO] [stderr]    Compiling openssl-sys v0.9.23
[INFO] [stderr]    Compiling serde_derive v1.0.26
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.8
[INFO] [stderr]    Compiling PolyPasswordHasher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `math`
[INFO] [stderr]  --> src/shamirsecret.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | mod math;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either shamirsecret/math.rs or shamirsecret/math/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 `PolyPasswordHasher`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "387f85a7dae966157045b2f85f022e75e427e7a2139804070ea9788abb32986a"`
[INFO] running `"docker" "rm" "-f" "387f85a7dae966157045b2f85f022e75e427e7a2139804070ea9788abb32986a"`
[INFO] [stdout] 387f85a7dae966157045b2f85f022e75e427e7a2139804070ea9788abb32986a