[INFO] updating cached repository Hand-of-Cthulhu/UdpPacketLossTester
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Hand-of-Cthulhu/UdpPacketLossTester
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Hand-of-Cthulhu/UdpPacketLossTester" "work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Hand-of-Cthulhu/UdpPacketLossTester" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Hand-of-Cthulhu/UdpPacketLossTester"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Hand-of-Cthulhu/UdpPacketLossTester'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9dacf2f669c58cdadee2dea71cae6c381a66aeb7
[INFO] sha for GitHub repo Hand-of-Cthulhu/UdpPacketLossTester: 9dacf2f669c58cdadee2dea71cae6c381a66aeb7
[INFO] validating manifest of Hand-of-Cthulhu/UdpPacketLossTester 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 Hand-of-Cthulhu/UdpPacketLossTester 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 Hand-of-Cthulhu/UdpPacketLossTester
[INFO] finished frobbing Hand-of-Cthulhu/UdpPacketLossTester
[INFO] frobbed toml for Hand-of-Cthulhu/UdpPacketLossTester written to work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester/Cargo.toml
[INFO] started frobbing Hand-of-Cthulhu/UdpPacketLossTester
[INFO] finished frobbing Hand-of-Cthulhu/UdpPacketLossTester
[INFO] frobbed toml for Hand-of-Cthulhu/UdpPacketLossTester written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Hand-of-Cthulhu/UdpPacketLossTester/Cargo.toml
[INFO] crate Hand-of-Cthulhu/UdpPacketLossTester 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 Hand-of-Cthulhu/UdpPacketLossTester 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester:/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] f654ece6aab74a8fe63aec6486d6570bbc7f9a1f97d0d3b18a0ac2d9a4f8ef95
[INFO] running `"docker" "start" "-a" "f654ece6aab74a8fe63aec6486d6570bbc7f9a1f97d0d3b18a0ac2d9a4f8ef95"`
[INFO] [stderr]    Compiling udp_socket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/sender/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "f654ece6aab74a8fe63aec6486d6570bbc7f9a1f97d0d3b18a0ac2d9a4f8ef95"`
[INFO] running `"docker" "rm" "-f" "f654ece6aab74a8fe63aec6486d6570bbc7f9a1f97d0d3b18a0ac2d9a4f8ef95"`
[INFO] [stdout] f654ece6aab74a8fe63aec6486d6570bbc7f9a1f97d0d3b18a0ac2d9a4f8ef95
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester:/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] 5be545146e973a0bc3c7967edbb3eeda3bbc1b9c0fc1977f975b969ce97d3336
[INFO] running `"docker" "start" "-a" "5be545146e973a0bc3c7967edbb3eeda3bbc1b9c0fc1977f975b969ce97d3336"`
[INFO] [stderr]    Compiling udp_socket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/sender/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "5be545146e973a0bc3c7967edbb3eeda3bbc1b9c0fc1977f975b969ce97d3336"`
[INFO] running `"docker" "rm" "-f" "5be545146e973a0bc3c7967edbb3eeda3bbc1b9c0fc1977f975b969ce97d3336"`
[INFO] [stdout] 5be545146e973a0bc3c7967edbb3eeda3bbc1b9c0fc1977f975b969ce97d3336
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Hand-of-Cthulhu/UdpPacketLossTester:/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] f4651573f0caaabc3f4650ad3973129cdff3ccaed19c3bf68fff6527da94aa96
[INFO] running `"docker" "start" "-a" "f4651573f0caaabc3f4650ad3973129cdff3ccaed19c3bf68fff6527da94aa96"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reciever-78a81109ccd0cbc2
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sender-92c6ddb1e1378f34
[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] [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" "f4651573f0caaabc3f4650ad3973129cdff3ccaed19c3bf68fff6527da94aa96"`
[INFO] running `"docker" "rm" "-f" "f4651573f0caaabc3f4650ad3973129cdff3ccaed19c3bf68fff6527da94aa96"`
[INFO] [stdout] f4651573f0caaabc3f4650ad3973129cdff3ccaed19c3bf68fff6527da94aa96