[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 try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonweng%2Firc_server" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robinsonweng/irc_server on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking robinsonweng/irc_server against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonweng%2Firc_server" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robinsonweng/irc_server on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.25.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9443a8a323112662334b624aa2748b4e84a7d248cfc745765382f86319ecddcf
[INFO] running `Command { std: "docker" "start" "-a" "9443a8a323112662334b624aa2748b4e84a7d248cfc745765382f86319ecddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9443a8a323112662334b624aa2748b4e84a7d248cfc745765382f86319ecddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9443a8a323112662334b624aa2748b4e84a7d248cfc745765382f86319ecddcf", kill_on_drop: false }`
[INFO] [stdout] 9443a8a323112662334b624aa2748b4e84a7d248cfc745765382f86319ecddcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc348a283a0b992daa86f65d7045cd2298753e535e76c43d27f040c90d98468b
[INFO] running `Command { std: "docker" "start" "-a" "bc348a283a0b992daa86f65d7045cd2298753e535e76c43d27f040c90d98468b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]     Checking memchr v2.6.3
[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]     Checking regex v1.10.2
[INFO] [stderr]    Compiling strum_macros v0.25.2
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.13s
[INFO] running `Command { std: "docker" "inspect" "bc348a283a0b992daa86f65d7045cd2298753e535e76c43d27f040c90d98468b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc348a283a0b992daa86f65d7045cd2298753e535e76c43d27f040c90d98468b", kill_on_drop: false }`
[INFO] [stdout] bc348a283a0b992daa86f65d7045cd2298753e535e76c43d27f040c90d98468b