[INFO] updating cached repository mosmeh/collatz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mosmeh/collatz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mosmeh/collatz" "work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mosmeh/collatz" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mosmeh/collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mosmeh/collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26977e4f6f712f45052eddb62a66e5d817256a17
[INFO] sha for GitHub repo mosmeh/collatz: 26977e4f6f712f45052eddb62a66e5d817256a17
[INFO] validating manifest of mosmeh/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 mosmeh/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 mosmeh/collatz
[INFO] finished frobbing mosmeh/collatz
[INFO] frobbed toml for mosmeh/collatz written to work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/collatz/Cargo.toml
[INFO] started frobbing mosmeh/collatz
[INFO] finished frobbing mosmeh/collatz
[INFO] frobbed toml for mosmeh/collatz written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mosmeh/collatz/Cargo.toml
[INFO] crate mosmeh/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 mosmeh/collatz against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f67deed5b70be443d8302d4c19d289daad2e19f0277dd779adef9fb506c4b2b3
[INFO] running `"docker" "start" "-a" "f67deed5b70be443d8302d4c19d289daad2e19f0277dd779adef9fb506c4b2b3"`
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.25s
[INFO] running `"docker" "inspect" "f67deed5b70be443d8302d4c19d289daad2e19f0277dd779adef9fb506c4b2b3"`
[INFO] running `"docker" "rm" "-f" "f67deed5b70be443d8302d4c19d289daad2e19f0277dd779adef9fb506c4b2b3"`
[INFO] [stdout] f67deed5b70be443d8302d4c19d289daad2e19f0277dd779adef9fb506c4b2b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d5de8d4d1cac24460c5612e592aa3e98db4953f68b1ad914c1a88d26ef8076a5
[INFO] running `"docker" "start" "-a" "d5de8d4d1cac24460c5612e592aa3e98db4953f68b1ad914c1a88d26ef8076a5"`
[INFO] [stderr]    Compiling collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "d5de8d4d1cac24460c5612e592aa3e98db4953f68b1ad914c1a88d26ef8076a5"`
[INFO] running `"docker" "rm" "-f" "d5de8d4d1cac24460c5612e592aa3e98db4953f68b1ad914c1a88d26ef8076a5"`
[INFO] [stdout] d5de8d4d1cac24460c5612e592aa3e98db4953f68b1ad914c1a88d26ef8076a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mosmeh/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 6ec944fe295e32ee61e3daae86b958d5a101fca601e4822909dff9299c39be2d
[INFO] running `"docker" "start" "-a" "6ec944fe295e32ee61e3daae86b958d5a101fca601e4822909dff9299c39be2d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/collatz-9da7acfc568512b6
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6ec944fe295e32ee61e3daae86b958d5a101fca601e4822909dff9299c39be2d"`
[INFO] running `"docker" "rm" "-f" "6ec944fe295e32ee61e3daae86b958d5a101fca601e4822909dff9299c39be2d"`
[INFO] [stdout] 6ec944fe295e32ee61e3daae86b958d5a101fca601e4822909dff9299c39be2d