[INFO] cloning repository https://github.com/ucanme/rust_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ucanme/rust_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fucanme%2Frust_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fucanme%2Frust_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 241c9178626f8186f161652f7749ddf732ba5561
[INFO] checking ucanme/rust_learn against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fucanme%2Frust_learn" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ucanme/rust_learn
[INFO] finished tweaking git repo https://github.com/ucanme/rust_learn
[INFO] tweaked toml for git repo https://github.com/ucanme/rust_learn written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ucanme/rust_learn on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ucanme/rust_learn 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking ucanme/rust_learn against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fucanme%2Frust_learn" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ucanme/rust_learn
[INFO] finished tweaking git repo https://github.com/ucanme/rust_learn
[INFO] tweaked toml for git repo https://github.com/ucanme/rust_learn written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ucanme/rust_learn on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ucanme/rust_learn 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "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 unsafe-any-ors v1.0.0
[INFO] [stderr]   Downloaded destructure_traitobject v0.2.0
[INFO] [stderr]   Downloaded typemap-ors v1.0.0
[INFO] [stderr]   Downloaded log4rs v1.3.0
[INFO] [stderr]   Downloaded bitflags v2.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e75b6759fdb316d754696a8b09a59e848f0529507ca27d923a65ffabd5fab2aa
[INFO] running `Command { std: "docker" "start" "-a" "e75b6759fdb316d754696a8b09a59e848f0529507ca27d923a65ffabd5fab2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e75b6759fdb316d754696a8b09a59e848f0529507ca27d923a65ffabd5fab2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e75b6759fdb316d754696a8b09a59e848f0529507ca27d923a65ffabd5fab2aa", kill_on_drop: false }`
[INFO] [stdout] e75b6759fdb316d754696a8b09a59e848f0529507ca27d923a65ffabd5fab2aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2def105acd5505ffd0afbc032fd50f7acfb4004538ee82790a575a95674095ab
[INFO] running `Command { std: "docker" "start" "-a" "2def105acd5505ffd0afbc032fd50f7acfb4004538ee82790a575a95674095ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking destructure_traitobject v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking unsafe-any-ors v1.0.0
[INFO] [stderr]     Checking typemap-ors v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking thread-id v4.2.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking tcp v0.1.0 (/opt/rustwide/workdir/src/tcp)
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> src/tcp/src/bin/epoll_server.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> src/tcp/src/bin/epoll_server.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/src/bin/epoll_server.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   if let Some(mut stream) = connections.get_mut(&token) {
[INFO] [stdout]    |                                   ----^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/src/bin/epoll_server.rs:88:41
[INFO] [stdout]    |
[INFO] [stdout] 88 | ...                   if let Some(mut stream) = connections.get_mut(&token) {
[INFO] [stdout]    |                                   ----^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking p2p v0.1.0 (/opt/rustwide/workdir/src/p2p)
[INFO] [stderr]     Checking log4rs v1.3.0
[INFO] [stdout] warning: method `send_p2p_message` is never used
[INFO] [stdout]    --> src/p2p/src/client.rs:951:8
[INFO] [stdout]     |
[INFO] [stdout]  63 | impl P2PClient {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 951 |     fn send_p2p_message(&mut self, peer_token: Token, peer_id: &str, content: String) -> Result<(), P2PError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send_p2p_message` is never used
[INFO] [stdout]    --> src/p2p/src/client.rs:951:8
[INFO] [stdout]     |
[INFO] [stdout]  63 | impl P2PClient {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 951 |     fn send_p2p_message(&mut self, peer_token: Token, peer_id: &str, content: String) -> Result<(), P2PError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log v0.1.0 (/opt/rustwide/workdir/src/log)
[INFO] [stdout] warning: unused imports: `Appender`, `Config`, `Logger`, and `Root`
[INFO] [stdout]  --> src/log/src/log.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log4rs::config::{Appender, Config, Logger, Root};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::append::console::ConsoleAppender`
[INFO] [stdout]  --> src/log/src/log.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs::append::console::ConsoleAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::append::file::FileAppender`
[INFO] [stdout]  --> src/log/src/log.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log4rs::append::file::FileAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::encode::pattern::PatternEncoder`
[INFO] [stdout]  --> src/log/src/log.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log4rs::encode::pattern::PatternEncoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::LevelFilter`
[INFO] [stdout]  --> src/log/src/log.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::LevelFilter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_config` is never used
[INFO] [stdout]  --> src/log/src/log.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn init_config() {
[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 imports: `Appender`, `Config`, `Logger`, and `Root`
[INFO] [stdout]  --> src/log/src/log.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log4rs::config::{Appender, Config, Logger, Root};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^^^^  ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::append::console::ConsoleAppender`
[INFO] [stdout]  --> src/log/src/log.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log4rs::append::console::ConsoleAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::append::file::FileAppender`
[INFO] [stdout]  --> src/log/src/log.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log4rs::append::file::FileAppender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log4rs::encode::pattern::PatternEncoder`
[INFO] [stdout]  --> src/log/src/log.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log4rs::encode::pattern::PatternEncoder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::LevelFilter`
[INFO] [stdout]  --> src/log/src/log.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::LevelFilter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_config` is never used
[INFO] [stdout]  --> src/log/src/log.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn init_config() {
[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 14.36s
[INFO] running `Command { std: "docker" "inspect" "2def105acd5505ffd0afbc032fd50f7acfb4004538ee82790a575a95674095ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2def105acd5505ffd0afbc032fd50f7acfb4004538ee82790a575a95674095ab", kill_on_drop: false }`
[INFO] [stdout] 2def105acd5505ffd0afbc032fd50f7acfb4004538ee82790a575a95674095ab
