[INFO] updating cached repository https://github.com/voidxnull/mio-chat-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 638e0a6875ae0cc861b07e7403374189456ef905
[INFO] checking voidxnull/mio-chat-example against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoidxnull%2Fmio-chat-example" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voidxnull/mio-chat-example on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/voidxnull/mio-chat-example
[INFO] finished tweaking git repo https://github.com/voidxnull/mio-chat-example
[INFO] tweaked toml for git repo https://github.com/voidxnull/mio-chat-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/voidxnull/mio-chat-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 3d84c1e52689eb380cefb282a1bd7673b52481515b4bd3610aaf50c215d6c112
[INFO] running `"docker" "start" "-a" "3d84c1e52689eb380cefb282a1bd7673b52481515b4bd3610aaf50c215d6c112"`
[INFO] [stderr]     Checking mio-chat-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Timer`, `self`
[INFO] [stderr]  --> src/tcp/server.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mio_extras::timer::{self, Timer};
[INFO] [stderr]   |                         ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:64:20
[INFO] [stderr]    |
[INFO] [stderr] 64 |         Option<Box<Fn(String, &TcpConnection, &TcpSender, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, &TcpConnection, &TcpSender, &Slab<TcpConnection>)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:65:43
[INFO] [stderr]    |
[INFO] [stderr] 65 |     client_connected_callback: Option<Box<Fn(&TcpConnection, &TcpSender, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&TcpConnection, &TcpSender, &Slab<TcpConnection>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:66:46
[INFO] [stderr]    |
[INFO] [stderr] 66 |     client_disconnected_callback: Option<Box<Fn(Token, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Token, &Slab<TcpConnection>)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Timer`, `self`
[INFO] [stderr]  --> src/tcp/server.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mio_extras::timer::{self, Timer};
[INFO] [stderr]   |                         ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:64:20
[INFO] [stderr]    |
[INFO] [stderr] 64 |         Option<Box<Fn(String, &TcpConnection, &TcpSender, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, &TcpConnection, &TcpSender, &Slab<TcpConnection>)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:65:43
[INFO] [stderr]    |
[INFO] [stderr] 65 |     client_connected_callback: Option<Box<Fn(&TcpConnection, &TcpSender, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&TcpConnection, &TcpSender, &Slab<TcpConnection>)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tcp/server.rs:66:46
[INFO] [stderr]    |
[INFO] [stderr] 66 |     client_disconnected_callback: Option<Box<Fn(Token, &Slab<TcpConnection>)>>,
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Token, &Slab<TcpConnection>)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |     server.on_message_received(|msg, _, _, _| {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |     server.on_message_received(|msg, _, _, _| {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `"docker" "inspect" "3d84c1e52689eb380cefb282a1bd7673b52481515b4bd3610aaf50c215d6c112"`
[INFO] running `"docker" "rm" "-f" "3d84c1e52689eb380cefb282a1bd7673b52481515b4bd3610aaf50c215d6c112"`
[INFO] [stdout] 3d84c1e52689eb380cefb282a1bd7673b52481515b4bd3610aaf50c215d6c112