[INFO] updating cached repository Elrohil44/Chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Elrohil44/Chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Elrohil44/Chat" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Elrohil44/Chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Elrohil44/Chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Elrohil44/Chat" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Elrohil44/Chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Elrohil44/Chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3530bf8acef7cc2c527da831b0fd2f1a0ecbb88d
[INFO] sha for GitHub repo Elrohil44/Chat: 3530bf8acef7cc2c527da831b0fd2f1a0ecbb88d
[INFO] validating manifest of Elrohil44/Chat on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Elrohil44/Chat on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Elrohil44/Chat
[INFO] finished frobbing Elrohil44/Chat
[INFO] frobbed toml for Elrohil44/Chat written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Elrohil44/Chat/Cargo.toml
[INFO] started frobbing Elrohil44/Chat
[INFO] finished frobbing Elrohil44/Chat
[INFO] frobbed toml for Elrohil44/Chat written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Elrohil44/Chat/Cargo.toml
[INFO] crate Elrohil44/Chat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Elrohil44/Chat against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Elrohil44/Chat:/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=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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3981e234aeb53ea4f8f2515eb74e6e3509e1c6c9f214a61b2592ed11cc2f07a8
[INFO] running `"docker" "start" "-a" "3981e234aeb53ea4f8f2515eb74e6e3509e1c6c9f214a61b2592ed11cc2f07a8"`
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/server.rs:89:37
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                 let mut clients_locked = clients.lock().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/bin/server.rs:89:37
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                 let mut clients_locked = clients.lock().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]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "3981e234aeb53ea4f8f2515eb74e6e3509e1c6c9f214a61b2592ed11cc2f07a8"`
[INFO] running `"docker" "rm" "-f" "3981e234aeb53ea4f8f2515eb74e6e3509e1c6c9f214a61b2592ed11cc2f07a8"`
[INFO] [stdout] 3981e234aeb53ea4f8f2515eb74e6e3509e1c6c9f214a61b2592ed11cc2f07a8