[INFO] updating cached repository francescop/rust_portscanner
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/francescop/rust_portscanner
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/francescop/rust_portscanner" "work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/francescop/rust_portscanner" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/francescop/rust_portscanner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/francescop/rust_portscanner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73a2be9423918e24f9fc064c2afbf3e020330c66
[INFO] sha for GitHub repo francescop/rust_portscanner: 73a2be9423918e24f9fc064c2afbf3e020330c66
[INFO] validating manifest of francescop/rust_portscanner 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 francescop/rust_portscanner 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 francescop/rust_portscanner
[INFO] finished frobbing francescop/rust_portscanner
[INFO] frobbed toml for francescop/rust_portscanner written to work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner/Cargo.toml
[INFO] started frobbing francescop/rust_portscanner
[INFO] finished frobbing francescop/rust_portscanner
[INFO] frobbed toml for francescop/rust_portscanner written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/francescop/rust_portscanner/Cargo.toml
[INFO] crate francescop/rust_portscanner 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 francescop/rust_portscanner 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner:/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] 4fab6590fa32bf35359515dd7dc306a565f9c52e4fe3b64032534ad7ed9a56dd
[INFO] running `"docker" "start" "-a" "4fab6590fa32bf35359515dd7dc306a565f9c52e4fe3b64032534ad7ed9a56dd"`
[INFO] [stderr]    Compiling port_scanner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "4fab6590fa32bf35359515dd7dc306a565f9c52e4fe3b64032534ad7ed9a56dd"`
[INFO] running `"docker" "rm" "-f" "4fab6590fa32bf35359515dd7dc306a565f9c52e4fe3b64032534ad7ed9a56dd"`
[INFO] [stdout] 4fab6590fa32bf35359515dd7dc306a565f9c52e4fe3b64032534ad7ed9a56dd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner:/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] c7a27c618e09a6b91ef07c6718f138dc6bd166b622beae3522e1d875091c973b
[INFO] running `"docker" "start" "-a" "c7a27c618e09a6b91ef07c6718f138dc6bd166b622beae3522e1d875091c973b"`
[INFO] [stderr]    Compiling port_scanner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "c7a27c618e09a6b91ef07c6718f138dc6bd166b622beae3522e1d875091c973b"`
[INFO] running `"docker" "rm" "-f" "c7a27c618e09a6b91ef07c6718f138dc6bd166b622beae3522e1d875091c973b"`
[INFO] [stdout] c7a27c618e09a6b91ef07c6718f138dc6bd166b622beae3522e1d875091c973b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/francescop/rust_portscanner:/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] 0b7af58ef26a85e66032c797ef208fcd68ffe3d73b38c533fd5a5f4b2c7d526f
[INFO] running `"docker" "start" "-a" "0b7af58ef26a85e66032c797ef208fcd68ffe3d73b38c533fd5a5f4b2c7d526f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/port_scanner-ce643bc59f5ba32c
[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" "0b7af58ef26a85e66032c797ef208fcd68ffe3d73b38c533fd5a5f4b2c7d526f"`
[INFO] running `"docker" "rm" "-f" "0b7af58ef26a85e66032c797ef208fcd68ffe3d73b38c533fd5a5f4b2c7d526f"`
[INFO] [stdout] 0b7af58ef26a85e66032c797ef208fcd68ffe3d73b38c533fd5a5f4b2c7d526f