Dec 18 08:29:49.836 INFO checking ArtemFrantsiian/telnet_chat against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:29:49.836 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ArtemFrantsiian/telnet_chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:29:50.258 INFO [stdout] 788d58f6b5789040a6b4192ee6c9c839354fb04f0bbdde41dba22f2b3e3b9755
Dec 18 08:29:50.260 INFO running `"docker" "start" "-a" "788d58f6b5789040a6b4192ee6c9c839354fb04f0bbdde41dba22f2b3e3b9755"`
Dec 18 08:29:52.512 INFO [stderr]     Checking docopt v1.0.0
Dec 18 08:29:54.064 INFO [stderr]     Checking telnet-chat v0.1.0 (/opt/crater/workdir)
Dec 18 08:29:56.704 INFO [stderr] warning: unused import: `HashSet`
Dec 18 08:29:56.704 INFO [stderr]  --> src/server.rs:1:33
Dec 18 08:29:56.704 INFO [stderr]   |
Dec 18 08:29:56.704 INFO [stderr] 1 | use std::collections::{HashMap, HashSet};
Dec 18 08:29:56.704 INFO [stderr]   |                                 ^^^^^^^
Dec 18 08:29:56.724 INFO [stderr]   |
Dec 18 08:29:56.724 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:29:56.724 INFO [stderr] 
Dec 18 08:29:56.764 INFO [stderr] warning: unused import: `HashSet`
Dec 18 08:29:56.764 INFO [stderr]  --> src/server.rs:1:33
Dec 18 08:29:56.765 INFO [stderr]   |
Dec 18 08:29:56.765 INFO [stderr] 1 | use std::collections::{HashMap, HashSet};
Dec 18 08:29:56.765 INFO [stderr]   |                                 ^^^^^^^
Dec 18 08:29:56.765 INFO [stderr]   |
Dec 18 08:29:56.766 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:29:56.766 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:104:17
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 104 |                 writeln!(io::stderr(), "{}", err);
Dec 18 08:29:57.198 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:114:25
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 114 |                         writeln!(io::stderr(), "Client {} aborted: {}", cli_addr, err);
Dec 18 08:29:57.198 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:134:17
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 134 |                 writeln!(io::stderr(), "Request recv error: {}", err);
Dec 18 08:29:57.198 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:139:21
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 139 |                     writeln!(io::stderr(), "Response send Rrror: {}", err);
Dec 18 08:29:57.198 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:141:25
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 141 |                         cli.leave();
Dec 18 08:29:57.198 INFO [stderr]     |                         ^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]    --> src/server.rs:149:17
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr] 149 |                 cli.tx.send(Notify::Broadcast(ntf.clone()));
Dec 18 08:29:57.198 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]     |
Dec 18 08:29:57.198 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.198 INFO [stderr] 
Dec 18 08:29:57.198 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.198 INFO [stderr]   --> src/main.rs:39:9
Dec 18 08:29:57.198 INFO [stderr]    |
Dec 18 08:29:57.198 INFO [stderr] 39 |         writeln!(io::stderr(), "{}", err);
Dec 18 08:29:57.198 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.198 INFO [stderr]    |
Dec 18 08:29:57.199 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.199 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.199 INFO [stderr] 
Dec 18 08:29:57.291 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.291 INFO [stderr]    --> src/server.rs:104:17
Dec 18 08:29:57.291 INFO [stderr]     |
Dec 18 08:29:57.291 INFO [stderr] 104 |                 writeln!(io::stderr(), "{}", err);
Dec 18 08:29:57.291 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.291 INFO [stderr]     |
Dec 18 08:29:57.291 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 08:29:57.291 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.291 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.291 INFO [stderr] 
Dec 18 08:29:57.292 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.292 INFO [stderr]    --> src/server.rs:114:25
Dec 18 08:29:57.292 INFO [stderr]     |
Dec 18 08:29:57.292 INFO [stderr] 114 |                         writeln!(io::stderr(), "Client {} aborted: {}", cli_addr, err);
Dec 18 08:29:57.292 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.292 INFO [stderr]     |
Dec 18 08:29:57.292 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.293 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.293 INFO [stderr] 
Dec 18 08:29:57.294 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.294 INFO [stderr]    --> src/server.rs:134:17
Dec 18 08:29:57.294 INFO [stderr]     |
Dec 18 08:29:57.294 INFO [stderr] 134 |                 writeln!(io::stderr(), "Request recv error: {}", err);
Dec 18 08:29:57.295 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.295 INFO [stderr]     |
Dec 18 08:29:57.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.296 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.296 INFO [stderr] 
Dec 18 08:29:57.296 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.296 INFO [stderr]    --> src/server.rs:139:21
Dec 18 08:29:57.297 INFO [stderr]     |
Dec 18 08:29:57.297 INFO [stderr] 139 |                     writeln!(io::stderr(), "Response send Rrror: {}", err);
Dec 18 08:29:57.297 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.297 INFO [stderr]     |
Dec 18 08:29:57.298 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.298 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.298 INFO [stderr] 
Dec 18 08:29:57.298 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.298 INFO [stderr]    --> src/server.rs:141:25
Dec 18 08:29:57.299 INFO [stderr]     |
Dec 18 08:29:57.299 INFO [stderr] 141 |                         cli.leave();
Dec 18 08:29:57.299 INFO [stderr]     |                         ^^^^^^^^^^^^
Dec 18 08:29:57.299 INFO [stderr]     |
Dec 18 08:29:57.299 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.299 INFO [stderr] 
Dec 18 08:29:57.299 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.300 INFO [stderr]    --> src/server.rs:149:17
Dec 18 08:29:57.300 INFO [stderr]     |
Dec 18 08:29:57.301 INFO [stderr] 149 |                 cli.tx.send(Notify::Broadcast(ntf.clone()));
Dec 18 08:29:57.301 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.301 INFO [stderr]     |
Dec 18 08:29:57.301 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.301 INFO [stderr] 
Dec 18 08:29:57.301 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:29:57.301 INFO [stderr]   --> src/main.rs:39:9
Dec 18 08:29:57.302 INFO [stderr]    |
Dec 18 08:29:57.302 INFO [stderr] 39 |         writeln!(io::stderr(), "{}", err);
Dec 18 08:29:57.302 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:29:57.302 INFO [stderr]    |
Dec 18 08:29:57.303 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:29:57.303 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:29:57.303 INFO [stderr] 
Dec 18 08:29:57.369 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
Dec 18 08:29:58.566 INFO running `"docker" "inspect" "788d58f6b5789040a6b4192ee6c9c839354fb04f0bbdde41dba22f2b3e3b9755"`
Dec 18 08:29:58.968 INFO running `"docker" "rm" "-f" "788d58f6b5789040a6b4192ee6c9c839354fb04f0bbdde41dba22f2b3e3b9755"`
Dec 18 08:29:59.248 INFO [stdout] 788d58f6b5789040a6b4192ee6c9c839354fb04f0bbdde41dba22f2b3e3b9755