[INFO] fetching crate gadu 0.1.3...
[INFO] checking gadu-0.1.3 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate gadu 0.1.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate gadu 0.1.3 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gadu 0.1.3
[INFO] finished tweaking crates.io crate gadu 0.1.3
[INFO] tweaked toml for crates.io crate gadu 0.1.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5369e8f30634b3e8168601a9c40cdeeb11a3d1f77f2e297986b6fa89067a18ed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5369e8f30634b3e8168601a9c40cdeeb11a3d1f77f2e297986b6fa89067a18ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5369e8f30634b3e8168601a9c40cdeeb11a3d1f77f2e297986b6fa89067a18ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5369e8f30634b3e8168601a9c40cdeeb11a3d1f77f2e297986b6fa89067a18ed", kill_on_drop: false }`
[INFO] [stdout] 5369e8f30634b3e8168601a9c40cdeeb11a3d1f77f2e297986b6fa89067a18ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f3bdf6af9dccbd4a48dc2c36655ae096198aff0ffd3eba267c5c8516c0c833
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "12f3bdf6af9dccbd4a48dc2c36655ae096198aff0ffd3eba267c5c8516c0c833", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking gadu v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/conn.rs:378:53
[INFO] [stdout]     |
[INFO] [stdout] 378 |     pub fn write(&mut self, buf: &[u8]) -> IoResult<(usize)> {
[INFO] [stdout]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `return` value
[INFO] [stdout]   --> src/events.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |             return { Err(e.to_string()) };
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/network_server.rs:68:50
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn server_loop(&self, net_event_handler: Arc<NetEvents>) {
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn NetEvents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/conn.rs:378:53
[INFO] [stdout]     |
[INFO] [stdout] 378 |     pub fn write(&mut self, buf: &[u8]) -> IoResult<(usize)> {
[INFO] [stdout]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `return` value
[INFO] [stdout]   --> src/events.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |             return { Err(e.to_string()) };
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/network_server.rs:68:50
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn server_loop(&self, net_event_handler: Arc<NetEvents>) {
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn NetEvents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     use std::thread;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::conn::Conn`
[INFO] [stdout]   --> src/lib.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     use crate::conn::Conn;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::server::Server`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use crate::server::Server;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read_buffer`
[INFO] [stdout]    --> src/events.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut read_buffer = [0; 32768];
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_buffer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_handler`
[INFO] [stdout]    --> src/events.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         event_handler: &T,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `read_buffer`
[INFO] [stdout]    --> src/events.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut read_buffer = [0; 32768];
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_read_buffer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_handler`
[INFO] [stdout]    --> src/events.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         event_handler: &T,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/events.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut read_buffer = [0; 32768];
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/events.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut read_buffer = [0; 32768];
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close_connection`
[INFO] [stdout]    --> src/events.rs:404:8
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn close_connection<T>(&self, id: usize, mut conn: &mut Conn, event_handler: &T) -> bool
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_event`
[INFO] [stdout]    --> src/events.rs:426:8
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn handle_event<T>(&self, id:usize, mut conn: &mut Conn, mut read_buffer: &mut [u8], event_handler: &T) -> bool
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close_connection`
[INFO] [stdout]    --> src/events.rs:404:8
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn close_connection<T>(&self, id: usize, mut conn: &mut Conn, event_handler: &T) -> bool
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_event`
[INFO] [stdout]    --> src/events.rs:426:8
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn handle_event<T>(&self, id:usize, mut conn: &mut Conn, mut read_buffer: &mut [u8], event_handler: &T) -> bool
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.72s
[INFO] running `Command { std: "docker" "inspect" "12f3bdf6af9dccbd4a48dc2c36655ae096198aff0ffd3eba267c5c8516c0c833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f3bdf6af9dccbd4a48dc2c36655ae096198aff0ffd3eba267c5c8516c0c833", kill_on_drop: false }`
[INFO] [stdout] 12f3bdf6af9dccbd4a48dc2c36655ae096198aff0ffd3eba267c5c8516c0c833
