Nov 28 00:09:49.101 INFO checking mtmccarthy/pop3 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 00:09:49.102 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 00:09:49.682 INFO [stdout] f1925afd0768d7e9f626a0dc2e9a163b8c21d32450484f7b42078626940f4900
Nov 28 00:09:49.686 INFO running `"docker" "start" "-a" "f1925afd0768d7e9f626a0dc2e9a163b8c21d32450484f7b42078626940f4900"`
Nov 28 00:09:51.328 INFO [stderr] usermod: no changes
Nov 28 00:09:51.401 INFO [stderr]     Checking pop3 v0.1.0 (/source)
Nov 28 00:09:51.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:51.892 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Nov 28 00:09:51.892 INFO [stderr]    |
Nov 28 00:09:51.892 INFO [stderr] 16 |     stream.flush();
Nov 28 00:09:51.892 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 00:09:51.892 INFO [stderr]    |
Nov 28 00:09:51.892 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 00:09:51.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:51.892 INFO [stderr] 
Nov 28 00:09:51.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:51.892 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Nov 28 00:09:51.892 INFO [stderr]    |
Nov 28 00:09:51.892 INFO [stderr] 42 |     stream.write(b"STAT");
Nov 28 00:09:51.892 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.892 INFO [stderr]    |
Nov 28 00:09:51.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:51.892 INFO [stderr] 
Nov 28 00:09:51.988 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:51.988 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Nov 28 00:09:51.988 INFO [stderr]    |
Nov 28 00:09:51.988 INFO [stderr] 16 |     stream.flush();
Nov 28 00:09:51.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 00:09:51.988 INFO [stderr]    |
Nov 28 00:09:51.988 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 00:09:51.988 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:51.988 INFO [stderr] 
Nov 28 00:09:51.988 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:51.988 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Nov 28 00:09:51.988 INFO [stderr]    |
Nov 28 00:09:51.988 INFO [stderr] 42 |     stream.write(b"STAT");
Nov 28 00:09:51.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.988 INFO [stderr]    |
Nov 28 00:09:51.988 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:51.988 INFO [stderr] 
Nov 28 00:09:52.336 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Nov 28 00:09:52.336 INFO [stderr]  --> src/main.rs:4:5
Nov 28 00:09:52.336 INFO [stderr]   |
Nov 28 00:09:52.336 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Nov 28 00:09:52.336 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:52.336 INFO [stderr]   |
Nov 28 00:09:52.336 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:09:52.336 INFO [stderr] 
Nov 28 00:09:52.336 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 00:09:52.336 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:09:52.336 INFO [stderr]   |
Nov 28 00:09:52.336 INFO [stderr] 6 | use std::io::prelude::*;
Nov 28 00:09:52.336 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:52.336 INFO [stderr] 
Nov 28 00:09:52.348 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Nov 28 00:09:52.348 INFO [stderr]  --> src/main.rs:4:5
Nov 28 00:09:52.348 INFO [stderr]   |
Nov 28 00:09:52.348 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Nov 28 00:09:52.348 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:52.348 INFO [stderr]   |
Nov 28 00:09:52.348 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:09:52.348 INFO [stderr] 
Nov 28 00:09:52.348 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 00:09:52.348 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:09:52.348 INFO [stderr]   |
Nov 28 00:09:52.348 INFO [stderr] 6 | use std::io::prelude::*;
Nov 28 00:09:52.348 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:52.348 INFO [stderr] 
Nov 28 00:09:52.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Nov 28 00:09:52.419 INFO [stderr] su: No module specific data is present
Nov 28 00:09:53.429 INFO running `"docker" "inspect" "f1925afd0768d7e9f626a0dc2e9a163b8c21d32450484f7b42078626940f4900"`
Nov 28 00:09:53.737 INFO running `"docker" "rm" "-f" "f1925afd0768d7e9f626a0dc2e9a163b8c21d32450484f7b42078626940f4900"`
Nov 28 00:09:54.121 INFO [stdout] f1925afd0768d7e9f626a0dc2e9a163b8c21d32450484f7b42078626940f4900