Dec 04 13:40:30.252 INFO checking mtmccarthy/pop3 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:40:30.252 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 13:40:30.659 INFO [stdout] bd71d6f34c99122bbae15bd20d7989b1df5168a6892493ae708ee48a0ad969cf
Dec 04 13:40:30.661 INFO running `"docker" "start" "-a" "bd71d6f34c99122bbae15bd20d7989b1df5168a6892493ae708ee48a0ad969cf"`
Dec 04 13:40:32.157 INFO [stderr] usermod: no changes
Dec 04 13:40:32.207 INFO [stderr]     Checking pop3 v0.1.0 (/source)
Dec 04 13:40:32.731 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:40:32.731 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 04 13:40:32.731 INFO [stderr]    |
Dec 04 13:40:32.731 INFO [stderr] 16 |     stream.flush();
Dec 04 13:40:32.731 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 13:40:32.742 INFO [stderr]    |
Dec 04 13:40:32.742 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 13:40:32.742 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:40:32.742 INFO [stderr] 
Dec 04 13:40:32.742 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:40:32.742 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 04 13:40:32.742 INFO [stderr]    |
Dec 04 13:40:32.742 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 04 13:40:32.742 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:32.742 INFO [stderr]    |
Dec 04 13:40:32.742 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:40:32.742 INFO [stderr] 
Dec 04 13:40:32.851 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:40:32.851 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 04 13:40:32.851 INFO [stderr]    |
Dec 04 13:40:32.851 INFO [stderr] 16 |     stream.flush();
Dec 04 13:40:32.851 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 13:40:32.851 INFO [stderr]    |
Dec 04 13:40:32.851 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 13:40:32.851 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:40:32.851 INFO [stderr] 
Dec 04 13:40:32.851 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 13:40:32.851 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 04 13:40:32.851 INFO [stderr]    |
Dec 04 13:40:32.851 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 04 13:40:32.851 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:32.851 INFO [stderr]    |
Dec 04 13:40:32.851 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 13:40:32.851 INFO [stderr] 
Dec 04 13:40:33.165 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 04 13:40:33.165 INFO [stderr]  --> src/main.rs:4:5
Dec 04 13:40:33.165 INFO [stderr]   |
Dec 04 13:40:33.165 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 04 13:40:33.165 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:33.165 INFO [stderr]   |
Dec 04 13:40:33.165 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 13:40:33.165 INFO [stderr] 
Dec 04 13:40:33.165 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 13:40:33.165 INFO [stderr]  --> src/main.rs:6:5
Dec 04 13:40:33.165 INFO [stderr]   |
Dec 04 13:40:33.165 INFO [stderr] 6 | use std::io::prelude::*;
Dec 04 13:40:33.165 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:33.165 INFO [stderr] 
Dec 04 13:40:33.287 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 04 13:40:33.287 INFO [stderr]  --> src/main.rs:4:5
Dec 04 13:40:33.287 INFO [stderr]   |
Dec 04 13:40:33.287 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 04 13:40:33.287 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:33.287 INFO [stderr]   |
Dec 04 13:40:33.287 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 13:40:33.287 INFO [stderr] 
Dec 04 13:40:33.287 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 13:40:33.287 INFO [stderr]  --> src/main.rs:6:5
Dec 04 13:40:33.287 INFO [stderr]   |
Dec 04 13:40:33.287 INFO [stderr] 6 | use std::io::prelude::*;
Dec 04 13:40:33.287 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 13:40:33.287 INFO [stderr] 
Dec 04 13:40:33.349 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Dec 04 13:40:33.352 INFO [stderr] su: No module specific data is present
Dec 04 13:40:34.161 INFO running `"docker" "inspect" "bd71d6f34c99122bbae15bd20d7989b1df5168a6892493ae708ee48a0ad969cf"`
Dec 04 13:40:34.595 INFO running `"docker" "rm" "-f" "bd71d6f34c99122bbae15bd20d7989b1df5168a6892493ae708ee48a0ad969cf"`
Dec 04 13:40:35.103 INFO [stdout] bd71d6f34c99122bbae15bd20d7989b1df5168a6892493ae708ee48a0ad969cf