[INFO] updating cached repository 27factorial/chat_server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/27factorial/chat_server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/27factorial/chat_server" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/27factorial/chat_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/27factorial/chat_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/27factorial/chat_server" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/27factorial/chat_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/27factorial/chat_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fcf5aeac6cf1fac7d863f285eedda7f97ec38a89
[INFO] sha for GitHub repo 27factorial/chat_server: fcf5aeac6cf1fac7d863f285eedda7f97ec38a89
[INFO] validating manifest of 27factorial/chat_server on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of 27factorial/chat_server on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing 27factorial/chat_server
[INFO] finished frobbing 27factorial/chat_server
[INFO] frobbed toml for 27factorial/chat_server written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/27factorial/chat_server/Cargo.toml
[INFO] started frobbing 27factorial/chat_server
[INFO] finished frobbing 27factorial/chat_server
[INFO] frobbed toml for 27factorial/chat_server written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/27factorial/chat_server/Cargo.toml
[INFO] crate 27factorial/chat_server already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking 27factorial/chat_server against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-0/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/27factorial/chat_server:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fe57ac5a25acec3d7a9de11a149588c28d5f7db17bfb7c5a1dcdc41659009d50
[INFO] running `"docker" "start" "-a" "fe57ac5a25acec3d7a9de11a149588c28d5f7db17bfb7c5a1dcdc41659009d50"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking chat_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `handlers`
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     handlers: Vec<Handler>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `broadcast_thread`
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     broadcast_thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `handlers`
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     handlers: Vec<Handler>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `broadcast_thread`
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     broadcast_thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "fe57ac5a25acec3d7a9de11a149588c28d5f7db17bfb7c5a1dcdc41659009d50"`
[INFO] running `"docker" "rm" "-f" "fe57ac5a25acec3d7a9de11a149588c28d5f7db17bfb7c5a1dcdc41659009d50"`
[INFO] [stdout] fe57ac5a25acec3d7a9de11a149588c28d5f7db17bfb7c5a1dcdc41659009d50