[INFO] updating cached repository knzee/PL_lab4
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/knzee/PL_lab4
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/knzee/PL_lab4" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/knzee/PL_lab4"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/knzee/PL_lab4'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/knzee/PL_lab4" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/knzee/PL_lab4"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/knzee/PL_lab4'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9b395afd760dcab9f25b6cfbf4e61efa125b6e4b
[INFO] sha for GitHub repo knzee/PL_lab4: 9b395afd760dcab9f25b6cfbf4e61efa125b6e4b
[INFO] validating manifest of knzee/PL_lab4 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of knzee/PL_lab4 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing knzee/PL_lab4
[INFO] finished frobbing knzee/PL_lab4
[INFO] frobbed toml for knzee/PL_lab4 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/knzee/PL_lab4/Cargo.toml
[INFO] started frobbing knzee/PL_lab4
[INFO] finished frobbing knzee/PL_lab4
[INFO] frobbed toml for knzee/PL_lab4 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/knzee/PL_lab4/Cargo.toml
[INFO] crate knzee/PL_lab4 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking knzee/PL_lab4 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-3/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/knzee/PL_lab4:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a1f284f504f64335b18a21d0f7c44a5e1500635b6246c38a664128596ba8badd
[INFO] running `"docker" "start" "-a" "a1f284f504f64335b18a21d0f7c44a5e1500635b6246c38a664128596ba8badd"`
[INFO] [stderr]     Checking rand v0.6.4
[INFO] [stderr]     Checking labrust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Shutdown`
[INFO] [stderr]  --> src/main.rs:6:40
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::net::{TcpListener, TcpStream, Shutdown};
[INFO] [stderr]   |                                        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Shutdown`
[INFO] [stderr]  --> src/main.rs:6:40
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::net::{TcpListener, TcpStream, Shutdown};
[INFO] [stderr]   |                                        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 |             stream.read(&mut data);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 stream.read(&mut data1);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:2
[INFO] [stderr]    |
[INFO] [stderr] 59 |     stream.read(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |         stream.read(&mut income);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 |             stream.read(&mut data);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 stream.read(&mut data1);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:2
[INFO] [stderr]    |
[INFO] [stderr] 59 |     stream.read(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |         stream.read(&mut income);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `"docker" "inspect" "a1f284f504f64335b18a21d0f7c44a5e1500635b6246c38a664128596ba8badd"`
[INFO] running `"docker" "rm" "-f" "a1f284f504f64335b18a21d0f7c44a5e1500635b6246c38a664128596ba8badd"`
[INFO] [stdout] a1f284f504f64335b18a21d0f7c44a5e1500635b6246c38a664128596ba8badd