[INFO] updating cached repository xithiox/collatz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xithiox/collatz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xithiox/collatz" "work/ex/beta-1.37-6/sources/1.36.0/gh/xithiox/collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/xithiox/collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xithiox/collatz" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/collatz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/collatz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b26b8f2c51584e7827136eb02d5380b8de48d35
[INFO] sha for GitHub repo xithiox/collatz: 3b26b8f2c51584e7827136eb02d5380b8de48d35
[INFO] validating manifest of xithiox/collatz 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 xithiox/collatz 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 xithiox/collatz
[INFO] finished frobbing xithiox/collatz
[INFO] frobbed toml for xithiox/collatz written to work/ex/beta-1.37-6/sources/1.36.0/gh/xithiox/collatz/Cargo.toml
[INFO] started frobbing xithiox/collatz
[INFO] finished frobbing xithiox/collatz
[INFO] frobbed toml for xithiox/collatz written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/collatz/Cargo.toml
[INFO] crate xithiox/collatz 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] testing xithiox/collatz against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c9146afdf393e69be14444496893692a5b5c1eff985cd33aaf81d1d3e797cfcd
[INFO] running `"docker" "start" "-a" "c9146afdf393e69be14444496893692a5b5c1eff985cd33aaf81d1d3e797cfcd"`
[INFO] [stderr]    Compiling collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "c9146afdf393e69be14444496893692a5b5c1eff985cd33aaf81d1d3e797cfcd"`
[INFO] running `"docker" "rm" "-f" "c9146afdf393e69be14444496893692a5b5c1eff985cd33aaf81d1d3e797cfcd"`
[INFO] [stdout] c9146afdf393e69be14444496893692a5b5c1eff985cd33aaf81d1d3e797cfcd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 242ce9038a69edb84133d5369bf569ebc48d1e207ee2bb1686b3dc1a97956241
[INFO] running `"docker" "start" "-a" "242ce9038a69edb84133d5369bf569ebc48d1e207ee2bb1686b3dc1a97956241"`
[INFO] [stderr]    Compiling collatz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "242ce9038a69edb84133d5369bf569ebc48d1e207ee2bb1686b3dc1a97956241"`
[INFO] running `"docker" "rm" "-f" "242ce9038a69edb84133d5369bf569ebc48d1e207ee2bb1686b3dc1a97956241"`
[INFO] [stdout] 242ce9038a69edb84133d5369bf569ebc48d1e207ee2bb1686b3dc1a97956241
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xithiox/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a2ba5e0667931c3c1ee51fc1932a4c36594337b0b4da8620b66244455ecb8e4b
[INFO] running `"docker" "start" "-a" "a2ba5e0667931c3c1ee51fc1932a4c36594337b0b4da8620b66244455ecb8e4b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/collatz-143fb5a0744b0fe9
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::run_zero ... ok
[INFO] [stdout] test tests::process_odd ... ok
[INFO] [stdout] test tests::process_even ... ok
[INFO] [stdout] test tests::run_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/collatz-6418a2a5be836e75
[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] [stderr]    Doc-tests collatz
[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" "a2ba5e0667931c3c1ee51fc1932a4c36594337b0b4da8620b66244455ecb8e4b"`
[INFO] running `"docker" "rm" "-f" "a2ba5e0667931c3c1ee51fc1932a4c36594337b0b4da8620b66244455ecb8e4b"`
[INFO] [stdout] a2ba5e0667931c3c1ee51fc1932a4c36594337b0b4da8620b66244455ecb8e4b