[INFO] updating cached repository asdofindia/rust_reverse_collatz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asdofindia/rust_reverse_collatz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asdofindia/rust_reverse_collatz" "work/ex/beta-1.38-1/sources/1.37.0/gh/asdofindia/rust_reverse_collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/asdofindia/rust_reverse_collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asdofindia/rust_reverse_collatz" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdofindia/rust_reverse_collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdofindia/rust_reverse_collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4fcd113b09e6ba66ec6b45d14b18444edb414124
[INFO] sha for GitHub repo asdofindia/rust_reverse_collatz: 4fcd113b09e6ba66ec6b45d14b18444edb414124
[INFO] validating manifest of asdofindia/rust_reverse_collatz 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 asdofindia/rust_reverse_collatz 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 asdofindia/rust_reverse_collatz
[INFO] finished frobbing asdofindia/rust_reverse_collatz
[INFO] frobbed toml for asdofindia/rust_reverse_collatz written to work/ex/beta-1.38-1/sources/1.37.0/gh/asdofindia/rust_reverse_collatz/Cargo.toml
[INFO] started frobbing asdofindia/rust_reverse_collatz
[INFO] finished frobbing asdofindia/rust_reverse_collatz
[INFO] frobbed toml for asdofindia/rust_reverse_collatz written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdofindia/rust_reverse_collatz/Cargo.toml
[INFO] crate asdofindia/rust_reverse_collatz 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 asdofindia/rust_reverse_collatz 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/asdofindia/rust_reverse_collatz:/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] d958bd458a8dab191ee50837581cfa135a0722ad87f1ed7f6e463900b08b656c
[INFO] running `"docker" "start" "-a" "d958bd458a8dab191ee50837581cfa135a0722ad87f1ed7f6e463900b08b656c"`
[INFO] [stderr]    Compiling reverse_collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `"docker" "inspect" "d958bd458a8dab191ee50837581cfa135a0722ad87f1ed7f6e463900b08b656c"`
[INFO] running `"docker" "rm" "-f" "d958bd458a8dab191ee50837581cfa135a0722ad87f1ed7f6e463900b08b656c"`
[INFO] [stdout] d958bd458a8dab191ee50837581cfa135a0722ad87f1ed7f6e463900b08b656c
[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/asdofindia/rust_reverse_collatz:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 97163f2c64fbe39772ebcfe45ee5cd757a202ff6e4011567b38c4c7ca5cb39be
[INFO] running `"docker" "start" "-a" "97163f2c64fbe39772ebcfe45ee5cd757a202ff6e4011567b38c4c7ca5cb39be"`
[INFO] [stderr]    Compiling reverse_collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "97163f2c64fbe39772ebcfe45ee5cd757a202ff6e4011567b38c4c7ca5cb39be"`
[INFO] running `"docker" "rm" "-f" "97163f2c64fbe39772ebcfe45ee5cd757a202ff6e4011567b38c4c7ca5cb39be"`
[INFO] [stdout] 97163f2c64fbe39772ebcfe45ee5cd757a202ff6e4011567b38c4c7ca5cb39be
[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/asdofindia/rust_reverse_collatz:/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" "test" "--frozen"`
[INFO] [stdout] 7a28e36618010ecb3dc36930311318fc76d2f37fe2062bcc6dd967dbe6e193a9
[INFO] running `"docker" "start" "-a" "7a28e36618010ecb3dc36930311318fc76d2f37fe2062bcc6dd967dbe6e193a9"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reverse_collatz-f624a4e544b7988b
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7a28e36618010ecb3dc36930311318fc76d2f37fe2062bcc6dd967dbe6e193a9"`
[INFO] running `"docker" "rm" "-f" "7a28e36618010ecb3dc36930311318fc76d2f37fe2062bcc6dd967dbe6e193a9"`
[INFO] [stdout] 7a28e36618010ecb3dc36930311318fc76d2f37fe2062bcc6dd967dbe6e193a9