[INFO] cloning repository https://github.com/robinsonweng/irc_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinsonweng/irc_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonweng%2Firc_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonweng%2Firc_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f03693fa5ec410966380fe88fa83676211b67704
[INFO] checking robinsonweng/irc_server against master#3350c1eb3fd8fe1bee1ed4c76944d707bd256876 for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonweng%2Firc_server" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinsonweng/irc_server on toolchain 3350c1eb3fd8fe1bee1ed4c76944d707bd256876
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robinsonweng/irc_server
[INFO] finished tweaking git repo https://github.com/robinsonweng/irc_server
[INFO] tweaked toml for git repo https://github.com/robinsonweng/irc_server written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/robinsonweng/irc_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37c6d7908bb6df91321fc1d7b1c40dfaa7a3f53126304ee7e4e86ebf85903007
[INFO] running `Command { std: "docker" "start" "-a" "37c6d7908bb6df91321fc1d7b1c40dfaa7a3f53126304ee7e4e86ebf85903007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37c6d7908bb6df91321fc1d7b1c40dfaa7a3f53126304ee7e4e86ebf85903007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c6d7908bb6df91321fc1d7b1c40dfaa7a3f53126304ee7e4e86ebf85903007", kill_on_drop: false }`
[INFO] [stdout] 37c6d7908bb6df91321fc1d7b1c40dfaa7a3f53126304ee7e4e86ebf85903007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1b0709b3899f68a02870519f863dc6a62732dae6d7f2b3f78d2106f0a74a462
[INFO] running `Command { std: "docker" "start" "-a" "d1b0709b3899f68a02870519f863dc6a62732dae6d7f2b3f78d2106f0a74a462", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking irc_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/irc.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/irc.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]    --> src/irc.rs:134:37
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]    --> src/irc.rs:134:55
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_user` is never used
[INFO] [stdout]    --> src/irc.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]    --> src/irc.rs:134:37
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]    --> src/irc.rs:134:55
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |                                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_user` is never used
[INFO] [stdout]    --> src/irc.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn register_user<T>(stream: &mut T, user: &impl User, command: &CommandFromUser) -> std::io::Result<()>
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHANNEL_NAME` is never used
[INFO] [stdout]   --> tests/test_irc.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const CHANNEL_NAME: &str = "rust";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.83s
[INFO] running `Command { std: "docker" "inspect" "d1b0709b3899f68a02870519f863dc6a62732dae6d7f2b3f78d2106f0a74a462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b0709b3899f68a02870519f863dc6a62732dae6d7f2b3f78d2106f0a74a462", kill_on_drop: false }`
[INFO] [stdout] d1b0709b3899f68a02870519f863dc6a62732dae6d7f2b3f78d2106f0a74a462