[INFO] updating cached repository Dhole/rust-netcat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dhole/rust-netcat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dhole/rust-netcat" "work/ex/beta-1.37-6/sources/1.36.0/gh/Dhole/rust-netcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Dhole/rust-netcat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dhole/rust-netcat" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Dhole/rust-netcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Dhole/rust-netcat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b51d0d132b4d383d4068f74ba4d63dc52d73579e
[INFO] sha for GitHub repo Dhole/rust-netcat: b51d0d132b4d383d4068f74ba4d63dc52d73579e
[INFO] validating manifest of Dhole/rust-netcat 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 Dhole/rust-netcat 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 Dhole/rust-netcat
[INFO] finished frobbing Dhole/rust-netcat
[INFO] frobbed toml for Dhole/rust-netcat written to work/ex/beta-1.37-6/sources/1.36.0/gh/Dhole/rust-netcat/Cargo.toml
[INFO] started frobbing Dhole/rust-netcat
[INFO] finished frobbing Dhole/rust-netcat
[INFO] frobbed toml for Dhole/rust-netcat written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Dhole/rust-netcat/Cargo.toml
[INFO] crate Dhole/rust-netcat 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 Dhole/rust-netcat 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-3/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/Dhole/rust-netcat:/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] 1b91ca53530a7da5269c7d4de32575e73fa915f0454955a19b9b77e3c2b555ae
[INFO] running `"docker" "start" "-a" "1b91ca53530a7da5269c7d4de32575e73fa915f0454955a19b9b77e3c2b555ae"`
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling netcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:298:21
[INFO] [stderr]     |
[INFO] [stderr] 298 | ) -> io::Result<Box<Socket>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Socket`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `family`
[INFO] [stderr]    --> src/main.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     family: &Option<Family>,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_family`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `"docker" "inspect" "1b91ca53530a7da5269c7d4de32575e73fa915f0454955a19b9b77e3c2b555ae"`
[INFO] running `"docker" "rm" "-f" "1b91ca53530a7da5269c7d4de32575e73fa915f0454955a19b9b77e3c2b555ae"`
[INFO] [stdout] 1b91ca53530a7da5269c7d4de32575e73fa915f0454955a19b9b77e3c2b555ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/Dhole/rust-netcat:/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] c47ced8d099c9398612f5a2eb3f31200c6be7d451231873c6cecca2549c4f82f
[INFO] running `"docker" "start" "-a" "c47ced8d099c9398612f5a2eb3f31200c6be7d451231873c6cecca2549c4f82f"`
[INFO] [stderr]    Compiling netcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:298:21
[INFO] [stderr]     |
[INFO] [stderr] 298 | ) -> io::Result<Box<Socket>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Socket`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `family`
[INFO] [stderr]    --> src/main.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     family: &Option<Family>,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_family`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "c47ced8d099c9398612f5a2eb3f31200c6be7d451231873c6cecca2549c4f82f"`
[INFO] running `"docker" "rm" "-f" "c47ced8d099c9398612f5a2eb3f31200c6be7d451231873c6cecca2549c4f82f"`
[INFO] [stdout] c47ced8d099c9398612f5a2eb3f31200c6be7d451231873c6cecca2549c4f82f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/Dhole/rust-netcat:/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] 33c9f719107d476393e091306abe5817f6cdd8d252d8bcd5a81e23f681060a31
[INFO] running `"docker" "start" "-a" "33c9f719107d476393e091306abe5817f6cdd8d252d8bcd5a81e23f681060a31"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/netcat-75763b78623e02fe
[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" "33c9f719107d476393e091306abe5817f6cdd8d252d8bcd5a81e23f681060a31"`
[INFO] running `"docker" "rm" "-f" "33c9f719107d476393e091306abe5817f6cdd8d252d8bcd5a81e23f681060a31"`
[INFO] [stdout] 33c9f719107d476393e091306abe5817f6cdd8d252d8bcd5a81e23f681060a31