[INFO] updating cached repository bschwind/udp-stress-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bschwind/udp-stress-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bschwind/udp-stress-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/bschwind/udp-stress-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bschwind/udp-stress-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bschwind/udp-stress-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae582a9eb84e7c8ddbdce41d0f638ca9d149e007
[INFO] sha for GitHub repo bschwind/udp-stress-test: ae582a9eb84e7c8ddbdce41d0f638ca9d149e007
[INFO] validating manifest of bschwind/udp-stress-test 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 bschwind/udp-stress-test 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 bschwind/udp-stress-test
[INFO] finished frobbing bschwind/udp-stress-test
[INFO] frobbed toml for bschwind/udp-stress-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/bschwind/udp-stress-test/Cargo.toml
[INFO] started frobbing bschwind/udp-stress-test
[INFO] finished frobbing bschwind/udp-stress-test
[INFO] frobbed toml for bschwind/udp-stress-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test/Cargo.toml
[INFO] crate bschwind/udp-stress-test 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 bschwind/udp-stress-test against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c5a47149c68f29a232cde89587e9a981319fa86509b535ff95c12887097cd733
[INFO] running `"docker" "start" "-a" "c5a47149c68f29a232cde89587e9a981319fa86509b535ff95c12887097cd733"`
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling tokio-timer v0.1.1
[INFO] [stderr]    Compiling bytes v0.4.3
[INFO] [stderr]    Compiling mio v0.6.7
[INFO] [stderr]    Compiling tokio-io v0.1.1
[INFO] [stderr]    Compiling tokio-core v0.1.7
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling udp-fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/main.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn run_server(bind_addr: &str, server_port: u16, buf: Vec<u8>, num_clients: usize) {
[INFO] [stderr]     |                                                  ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.25s
[INFO] running `"docker" "inspect" "c5a47149c68f29a232cde89587e9a981319fa86509b535ff95c12887097cd733"`
[INFO] running `"docker" "rm" "-f" "c5a47149c68f29a232cde89587e9a981319fa86509b535ff95c12887097cd733"`
[INFO] [stdout] c5a47149c68f29a232cde89587e9a981319fa86509b535ff95c12887097cd733
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f81c296b38d9f7e87b37c651f64d0021f4d9014a78e5528b9c3a530aa1c100f2
[INFO] running `"docker" "start" "-a" "f81c296b38d9f7e87b37c651f64d0021f4d9014a78e5528b9c3a530aa1c100f2"`
[INFO] [stderr]    Compiling udp-fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/main.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn run_server(bind_addr: &str, server_port: u16, buf: Vec<u8>, num_clients: usize) {
[INFO] [stderr]     |                                                  ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "f81c296b38d9f7e87b37c651f64d0021f4d9014a78e5528b9c3a530aa1c100f2"`
[INFO] running `"docker" "rm" "-f" "f81c296b38d9f7e87b37c651f64d0021f4d9014a78e5528b9c3a530aa1c100f2"`
[INFO] [stdout] f81c296b38d9f7e87b37c651f64d0021f4d9014a78e5528b9c3a530aa1c100f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bschwind/udp-stress-test:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 5b56d00f16a98a05340d8d55b87fce6913b1c5e7f3a13e772785c0c7abe86cda
[INFO] running `"docker" "start" "-a" "5b56d00f16a98a05340d8d55b87fce6913b1c5e7f3a13e772785c0c7abe86cda"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/udp_fun-30d3b6c41b6e8c79
[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" "5b56d00f16a98a05340d8d55b87fce6913b1c5e7f3a13e772785c0c7abe86cda"`
[INFO] running `"docker" "rm" "-f" "5b56d00f16a98a05340d8d55b87fce6913b1c5e7f3a13e772785c0c7abe86cda"`
[INFO] [stdout] 5b56d00f16a98a05340d8d55b87fce6913b1c5e7f3a13e772785c0c7abe86cda