Nov 28 00:09:48.234 INFO checking mtmccarthy/pop3 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:09:48.234 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 00:09:48.599 INFO [stdout] 9d3a69feab088e3685583b0d557c4f3ca1df73bcd69ab52b9e7824f570dd39c1
Nov 28 00:09:48.602 INFO running `"docker" "start" "-a" "9d3a69feab088e3685583b0d557c4f3ca1df73bcd69ab52b9e7824f570dd39c1"`
Nov 28 00:09:50.132 INFO [stderr] usermod: no changes
Nov 28 00:09:50.197 INFO [stderr]     Checking pop3 v0.1.0 (/source)
Nov 28 00:09:50.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:50.681 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Nov 28 00:09:50.681 INFO [stderr]    |
Nov 28 00:09:50.682 INFO [stderr] 16 |     stream.flush();
Nov 28 00:09:50.682 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 00:09:50.682 INFO [stderr]    |
Nov 28 00:09:50.682 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 00:09:50.683 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:50.683 INFO [stderr] 
Nov 28 00:09:50.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:50.683 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Nov 28 00:09:50.684 INFO [stderr]    |
Nov 28 00:09:50.684 INFO [stderr] 42 |     stream.write(b"STAT");
Nov 28 00:09:50.685 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:50.685 INFO [stderr]    |
Nov 28 00:09:50.685 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:50.685 INFO [stderr] 
Nov 28 00:09:50.936 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:50.937 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Nov 28 00:09:50.937 INFO [stderr]    |
Nov 28 00:09:50.937 INFO [stderr] 16 |     stream.flush();
Nov 28 00:09:50.938 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 00:09:50.938 INFO [stderr]    |
Nov 28 00:09:50.938 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 00:09:50.938 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:50.939 INFO [stderr] 
Nov 28 00:09:50.939 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:09:50.939 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Nov 28 00:09:50.939 INFO [stderr]    |
Nov 28 00:09:50.940 INFO [stderr] 42 |     stream.write(b"STAT");
Nov 28 00:09:50.940 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:50.940 INFO [stderr]    |
Nov 28 00:09:50.941 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:09:50.941 INFO [stderr] 
Nov 28 00:09:51.228 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Nov 28 00:09:51.228 INFO [stderr]  --> src/main.rs:4:5
Nov 28 00:09:51.228 INFO [stderr]   |
Nov 28 00:09:51.228 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Nov 28 00:09:51.228 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.228 INFO [stderr]   |
Nov 28 00:09:51.228 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:09:51.228 INFO [stderr] 
Nov 28 00:09:51.228 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 00:09:51.228 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:09:51.228 INFO [stderr]   |
Nov 28 00:09:51.228 INFO [stderr] 6 | use std::io::prelude::*;
Nov 28 00:09:51.228 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.228 INFO [stderr] 
Nov 28 00:09:51.265 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Nov 28 00:09:51.265 INFO [stderr]  --> src/main.rs:4:5
Nov 28 00:09:51.265 INFO [stderr]   |
Nov 28 00:09:51.265 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Nov 28 00:09:51.265 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.266 INFO [stderr]   |
Nov 28 00:09:51.266 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:09:51.266 INFO [stderr] 
Nov 28 00:09:51.266 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 00:09:51.266 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:09:51.266 INFO [stderr]   |
Nov 28 00:09:51.266 INFO [stderr] 6 | use std::io::prelude::*;
Nov 28 00:09:51.266 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:09:51.266 INFO [stderr] 
Nov 28 00:09:51.319 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Nov 28 00:09:51.322 INFO [stderr] su: No module specific data is present
Nov 28 00:09:52.391 INFO running `"docker" "inspect" "9d3a69feab088e3685583b0d557c4f3ca1df73bcd69ab52b9e7824f570dd39c1"`
Nov 28 00:09:52.661 INFO running `"docker" "rm" "-f" "9d3a69feab088e3685583b0d557c4f3ca1df73bcd69ab52b9e7824f570dd39c1"`
Nov 28 00:09:53.109 INFO [stdout] 9d3a69feab088e3685583b0d557c4f3ca1df73bcd69ab52b9e7824f570dd39c1