[INFO] updating cached repository malramsay64/random_number_generators
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/malramsay64/random_number_generators
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/malramsay64/random_number_generators" "work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/malramsay64/random_number_generators" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/malramsay64/random_number_generators"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/malramsay64/random_number_generators'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4310b8c9eebb26620eaecae656e427abb7e32aa6
[INFO] sha for GitHub repo malramsay64/random_number_generators: 4310b8c9eebb26620eaecae656e427abb7e32aa6
[INFO] validating manifest of malramsay64/random_number_generators 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 malramsay64/random_number_generators 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 malramsay64/random_number_generators
[INFO] finished frobbing malramsay64/random_number_generators
[INFO] frobbed toml for malramsay64/random_number_generators written to work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators/Cargo.toml
[INFO] started frobbing malramsay64/random_number_generators
[INFO] finished frobbing malramsay64/random_number_generators
[INFO] frobbed toml for malramsay64/random_number_generators written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/malramsay64/random_number_generators/Cargo.toml
[INFO] crate malramsay64/random_number_generators 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 malramsay64/random_number_generators against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d1c6f2ca683edfbbe58c4bee009735a9c4e098fd604150466e6469ad1d51b3d2
[INFO] running `"docker" "start" "-a" "d1c6f2ca683edfbbe58c4bee009735a9c4e098fd604150466e6469ad1d51b3d2"`
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling rand_xoshiro v0.2.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling sfmt v0.5.0
[INFO] [stderr]    Compiling random_number_generators v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.46s
[INFO] running `"docker" "inspect" "d1c6f2ca683edfbbe58c4bee009735a9c4e098fd604150466e6469ad1d51b3d2"`
[INFO] running `"docker" "rm" "-f" "d1c6f2ca683edfbbe58c4bee009735a9c4e098fd604150466e6469ad1d51b3d2"`
[INFO] [stdout] d1c6f2ca683edfbbe58c4bee009735a9c4e098fd604150466e6469ad1d51b3d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] dfd3d98e3e832bdc426a45814010e0d7b247bc2ecfcc0e23c048a97d6386e827
[INFO] running `"docker" "start" "-a" "dfd3d98e3e832bdc426a45814010e0d7b247bc2ecfcc0e23c048a97d6386e827"`
[INFO] [stderr]    Compiling random_number_generators v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "dfd3d98e3e832bdc426a45814010e0d7b247bc2ecfcc0e23c048a97d6386e827"`
[INFO] running `"docker" "rm" "-f" "dfd3d98e3e832bdc426a45814010e0d7b247bc2ecfcc0e23c048a97d6386e827"`
[INFO] [stdout] dfd3d98e3e832bdc426a45814010e0d7b247bc2ecfcc0e23c048a97d6386e827
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/malramsay64/random_number_generators:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 98177e60933b1a3c3dc2a6263f99244b01b2008ad84f1015a8462f9288abbdf8
[INFO] running `"docker" "start" "-a" "98177e60933b1a3c3dc2a6263f99244b01b2008ad84f1015a8462f9288abbdf8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/random_number_generators-7d1cc5226736c482
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'tests::test_invariant' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: process didn't exit successfully: `/opt/crater/target/debug/deps/random_number_generators-7d1cc5226736c482` (signal: 6, SIGABRT: process abort signal)
[INFO] running `"docker" "inspect" "98177e60933b1a3c3dc2a6263f99244b01b2008ad84f1015a8462f9288abbdf8"`
[INFO] running `"docker" "rm" "-f" "98177e60933b1a3c3dc2a6263f99244b01b2008ad84f1015a8462f9288abbdf8"`
[INFO] [stdout] 98177e60933b1a3c3dc2a6263f99244b01b2008ad84f1015a8462f9288abbdf8