[INFO] updating cached repository mathieuancelin/tcp-lb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mathieuancelin/tcp-lb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mathieuancelin/tcp-lb" "work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mathieuancelin/tcp-lb" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mathieuancelin/tcp-lb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mathieuancelin/tcp-lb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 875880474d2a1b0fac7ecb8317df794380de9ead
[INFO] sha for GitHub repo mathieuancelin/tcp-lb: 875880474d2a1b0fac7ecb8317df794380de9ead
[INFO] validating manifest of mathieuancelin/tcp-lb 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 mathieuancelin/tcp-lb 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 mathieuancelin/tcp-lb
[INFO] finished frobbing mathieuancelin/tcp-lb
[INFO] frobbed toml for mathieuancelin/tcp-lb written to work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb/Cargo.toml
[INFO] started frobbing mathieuancelin/tcp-lb
[INFO] finished frobbing mathieuancelin/tcp-lb
[INFO] frobbed toml for mathieuancelin/tcp-lb written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mathieuancelin/tcp-lb/Cargo.toml
[INFO] crate mathieuancelin/tcp-lb 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 mathieuancelin/tcp-lb 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb:/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] aa19d7da671c238d825b7e4bf66d517cb942d26884fa2563cb3b523084fdffb6
[INFO] running `"docker" "start" "-a" "aa19d7da671c238d825b7e4bf66d517cb942d26884fa2563cb3b523084fdffb6"`
[INFO] [stderr]    Compiling tokio-sync v0.1.3
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling tokio-current-thread v0.1.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.12
[INFO] [stderr]    Compiling dns-lookup v1.0.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.16
[INFO] [stderr]    Compiling tcp-lb v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:117:34
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn run_proxy() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:187:29
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:159:11
[INFO] [stderr]     |
[INFO] [stderr] 159 |       for mut host in lookup_host(parts[0]).unwrap() {
[INFO] [stderr]     |           ----^^^^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:178:13
[INFO] [stderr]     |
[INFO] [stderr] 178 |             serve(the_addr, the_urls, i);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.35s
[INFO] running `"docker" "inspect" "aa19d7da671c238d825b7e4bf66d517cb942d26884fa2563cb3b523084fdffb6"`
[INFO] running `"docker" "rm" "-f" "aa19d7da671c238d825b7e4bf66d517cb942d26884fa2563cb3b523084fdffb6"`
[INFO] [stdout] aa19d7da671c238d825b7e4bf66d517cb942d26884fa2563cb3b523084fdffb6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb:/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] 3c8a92033bedb14f35d5b0e41416def9a8309ec63b73e4562ef78b139c6fa677
[INFO] running `"docker" "start" "-a" "3c8a92033bedb14f35d5b0e41416def9a8309ec63b73e4562ef78b139c6fa677"`
[INFO] [stderr]    Compiling tcp-lb v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:117:34
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn run_proxy() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:187:29
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:159:11
[INFO] [stderr]     |
[INFO] [stderr] 159 |       for mut host in lookup_host(parts[0]).unwrap() {
[INFO] [stderr]     |           ----^^^^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:178:13
[INFO] [stderr]     |
[INFO] [stderr] 178 |             serve(the_addr, the_urls, i);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "3c8a92033bedb14f35d5b0e41416def9a8309ec63b73e4562ef78b139c6fa677"`
[INFO] running `"docker" "rm" "-f" "3c8a92033bedb14f35d5b0e41416def9a8309ec63b73e4562ef78b139c6fa677"`
[INFO] [stdout] 3c8a92033bedb14f35d5b0e41416def9a8309ec63b73e4562ef78b139c6fa677
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mathieuancelin/tcp-lb:/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] 68f2c254f0df9f8067f690f9396f3995b3e68049e312e74b15d1260209866eec
[INFO] running `"docker" "start" "-a" "68f2c254f0df9f8067f690f9396f3995b3e68049e312e74b15d1260209866eec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tcp_lb-b30e0734e148e1b0
[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" "68f2c254f0df9f8067f690f9396f3995b3e68049e312e74b15d1260209866eec"`
[INFO] running `"docker" "rm" "-f" "68f2c254f0df9f8067f690f9396f3995b3e68049e312e74b15d1260209866eec"`
[INFO] [stdout] 68f2c254f0df9f8067f690f9396f3995b3e68049e312e74b15d1260209866eec