[INFO] cloning repository https://github.com/JolloDede/Rustchat
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JolloDede/Rustchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJolloDede%2FRustchat"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJolloDede%2FRustchat'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18256c1e8bc6c8cf8e28d11dfb24979e6f395e26
[INFO] checking JolloDede/Rustchat against try#f88e9a4452e792c29632101b348a1df9876d45cd for pr-70087
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJolloDede%2FRustchat" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JolloDede/Rustchat on toolchain f88e9a4452e792c29632101b348a1df9876d45cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JolloDede/Rustchat
[INFO] finished tweaking git repo https://github.com/JolloDede/Rustchat
[INFO] tweaked toml for git repo https://github.com/JolloDede/Rustchat written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JolloDede/Rustchat already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4445f257528a582d736be7b8fbe3a2d8500ebc06681a70c028378fb720529fbc
[INFO] running `"docker" "start" "-a" "4445f257528a582d736be7b8fbe3a2d8500ebc06681a70c028378fb720529fbc"`
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |                         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:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             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: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |                         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:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             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]     Finished dev [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `"docker" "inspect" "4445f257528a582d736be7b8fbe3a2d8500ebc06681a70c028378fb720529fbc"`
[INFO] running `"docker" "rm" "-f" "4445f257528a582d736be7b8fbe3a2d8500ebc06681a70c028378fb720529fbc"`
[INFO] [stdout] 4445f257528a582d736be7b8fbe3a2d8500ebc06681a70c028378fb720529fbc