[INFO] updating cached repository lunarpulse/chatApp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lunarpulse/chatApp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lunarpulse/chatApp" "work/ex/beta-1.38-1/sources/1.37.0/gh/lunarpulse/chatApp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lunarpulse/chatApp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lunarpulse/chatApp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lunarpulse/chatApp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lunarpulse/chatApp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95002d7c78afa6eb5ad20f2bbda38a60f37eed91
[INFO] sha for GitHub repo lunarpulse/chatApp: 95002d7c78afa6eb5ad20f2bbda38a60f37eed91
[INFO] validating manifest of lunarpulse/chatApp 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 lunarpulse/chatApp 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 lunarpulse/chatApp
[INFO] finished frobbing lunarpulse/chatApp
[INFO] frobbed toml for lunarpulse/chatApp written to work/ex/beta-1.38-1/sources/1.37.0/gh/lunarpulse/chatApp/Cargo.toml
[INFO] started frobbing lunarpulse/chatApp
[INFO] finished frobbing lunarpulse/chatApp
[INFO] frobbed toml for lunarpulse/chatApp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lunarpulse/chatApp/Cargo.toml
[INFO] crate lunarpulse/chatApp 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lunarpulse/chatApp/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 lunarpulse/chatApp 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/lunarpulse/chatApp:/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] d66571a1edfc8c289e152e58da508946ef3cd34dce9d1a27904b9530b363166b
[INFO] running `"docker" "start" "-a" "d66571a1edfc8c289e152e58da508946ef3cd34dce9d1a27904b9530b363166b"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling sha1 v0.1.1
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling chat_app_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/main.rs:149:35
[INFO] [stderr]     |
[INFO] [stderr] 149 |                     Ok(Some((sock,addr)))=>sock
[INFO] [stderr]     |                                   ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:162:21
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 let mut client = self.clients.get_mut(&token).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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let mut client= self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.34s
[INFO] running `"docker" "inspect" "d66571a1edfc8c289e152e58da508946ef3cd34dce9d1a27904b9530b363166b"`
[INFO] running `"docker" "rm" "-f" "d66571a1edfc8c289e152e58da508946ef3cd34dce9d1a27904b9530b363166b"`
[INFO] [stdout] d66571a1edfc8c289e152e58da508946ef3cd34dce9d1a27904b9530b363166b
[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/lunarpulse/chatApp:/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] 32278c34daab8ee7f14f82dd4dcffd8e46f8d9294082260ee429b06d3026b450
[INFO] running `"docker" "start" "-a" "32278c34daab8ee7f14f82dd4dcffd8e46f8d9294082260ee429b06d3026b450"`
[INFO] [stderr]    Compiling chat_app_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/main.rs:149:35
[INFO] [stderr]     |
[INFO] [stderr] 149 |                     Ok(Some((sock,addr)))=>sock
[INFO] [stderr]     |                                   ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:162:21
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 let mut client = self.clients.get_mut(&token).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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let mut client= self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "32278c34daab8ee7f14f82dd4dcffd8e46f8d9294082260ee429b06d3026b450"`
[INFO] running `"docker" "rm" "-f" "32278c34daab8ee7f14f82dd4dcffd8e46f8d9294082260ee429b06d3026b450"`
[INFO] [stdout] 32278c34daab8ee7f14f82dd4dcffd8e46f8d9294082260ee429b06d3026b450
[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/lunarpulse/chatApp:/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] c873a644b564d14e3188ec1e33abe9dc1be7fbfca9b2f3f1c4aaf0a705b2382f
[INFO] running `"docker" "start" "-a" "c873a644b564d14e3188ec1e33abe9dc1be7fbfca9b2f3f1c4aaf0a705b2382f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chat_app_rust-6b1eb7dae4d86dbd
[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" "c873a644b564d14e3188ec1e33abe9dc1be7fbfca9b2f3f1c4aaf0a705b2382f"`
[INFO] running `"docker" "rm" "-f" "c873a644b564d14e3188ec1e33abe9dc1be7fbfca9b2f3f1c4aaf0a705b2382f"`
[INFO] [stdout] c873a644b564d14e3188ec1e33abe9dc1be7fbfca9b2f3f1c4aaf0a705b2382f