Dec 17 19:12:40.273 INFO checking mtmccarthy/pop3 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:12:40.273 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/mtmccarthy/pop3:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:12:40.630 INFO [stdout] e4712a16367ebc0ee1d50b2ab75e6e088fc199ee872abb6cb6f9b001f5cd70ce
Dec 17 19:12:40.632 INFO running `"docker" "start" "-a" "e4712a16367ebc0ee1d50b2ab75e6e088fc199ee872abb6cb6f9b001f5cd70ce"`
Dec 17 19:12:42.416 INFO [stderr]     Checking pop3 v0.1.0 (/opt/crater/workdir)
Dec 17 19:12:42.642 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:12:42.642 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 17 19:12:42.642 INFO [stderr]    |
Dec 17 19:12:42.642 INFO [stderr] 16 |     stream.flush();
Dec 17 19:12:42.642 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 19:12:42.642 INFO [stderr]    |
Dec 17 19:12:42.642 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:12:42.642 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:12:42.642 INFO [stderr] 
Dec 17 19:12:42.642 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:12:42.643 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 17 19:12:42.643 INFO [stderr]    |
Dec 17 19:12:42.643 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 17 19:12:42.643 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.643 INFO [stderr]    |
Dec 17 19:12:42.643 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:12:42.643 INFO [stderr] 
Dec 17 19:12:42.812 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:12:42.812 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 17 19:12:42.812 INFO [stderr]    |
Dec 17 19:12:42.812 INFO [stderr] 16 |     stream.flush();
Dec 17 19:12:42.812 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 19:12:42.812 INFO [stderr]    |
Dec 17 19:12:42.812 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:12:42.812 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:12:42.812 INFO [stderr] 
Dec 17 19:12:42.812 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:12:42.812 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 17 19:12:42.812 INFO [stderr]    |
Dec 17 19:12:42.812 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 17 19:12:42.812 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.812 INFO [stderr]    |
Dec 17 19:12:42.812 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:12:42.812 INFO [stderr] 
Dec 17 19:12:42.896 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 17 19:12:42.896 INFO [stderr]  --> src/main.rs:4:5
Dec 17 19:12:42.896 INFO [stderr]   |
Dec 17 19:12:42.896 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 17 19:12:42.896 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.896 INFO [stderr]   |
Dec 17 19:12:42.896 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:12:42.896 INFO [stderr] 
Dec 17 19:12:42.896 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 19:12:42.896 INFO [stderr]  --> src/main.rs:6:5
Dec 17 19:12:42.897 INFO [stderr]   |
Dec 17 19:12:42.897 INFO [stderr] 6 | use std::io::prelude::*;
Dec 17 19:12:42.897 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.897 INFO [stderr] 
Dec 17 19:12:42.980 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 17 19:12:42.980 INFO [stderr]  --> src/main.rs:4:5
Dec 17 19:12:42.980 INFO [stderr]   |
Dec 17 19:12:42.980 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 17 19:12:42.980 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.980 INFO [stderr]   |
Dec 17 19:12:42.980 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:12:42.980 INFO [stderr] 
Dec 17 19:12:42.980 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 19:12:42.980 INFO [stderr]  --> src/main.rs:6:5
Dec 17 19:12:42.980 INFO [stderr]   |
Dec 17 19:12:42.980 INFO [stderr] 6 | use std::io::prelude::*;
Dec 17 19:12:42.980 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:12:42.980 INFO [stderr] 
Dec 17 19:12:43.076 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 17 19:12:43.944 INFO running `"docker" "inspect" "e4712a16367ebc0ee1d50b2ab75e6e088fc199ee872abb6cb6f9b001f5cd70ce"`
Dec 17 19:12:44.256 INFO running `"docker" "rm" "-f" "e4712a16367ebc0ee1d50b2ab75e6e088fc199ee872abb6cb6f9b001f5cd70ce"`
Dec 17 19:12:44.596 INFO [stdout] e4712a16367ebc0ee1d50b2ab75e6e088fc199ee872abb6cb6f9b001f5cd70ce