Dec 05 13:36:30.024 INFO testing mtmccarthy/pop3 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 13:36:30.024 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 13:36:30.176 INFO [stdout] 618b5fa2d5bbbe04d3f6f7ce1b1df76e96118794c7c06fea323e285b7d784604
Dec 05 13:36:30.182 INFO running `"docker" "start" "-a" "618b5fa2d5bbbe04d3f6f7ce1b1df76e96118794c7c06fea323e285b7d784604"`
Dec 05 13:36:30.948 INFO [stderr] usermod: no changes
Dec 05 13:36:31.008 INFO [stderr]    Compiling pop3 v0.1.0 (/source)
Dec 05 13:36:31.260 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:36:31.260 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 05 13:36:31.260 INFO [stderr]    |
Dec 05 13:36:31.260 INFO [stderr] 16 |     stream.flush();
Dec 05 13:36:31.260 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 05 13:36:31.260 INFO [stderr]    |
Dec 05 13:36:31.260 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 13:36:31.260 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:36:31.260 INFO [stderr] 
Dec 05 13:36:31.263 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:36:31.263 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 05 13:36:31.263 INFO [stderr]    |
Dec 05 13:36:31.263 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 05 13:36:31.263 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:31.263 INFO [stderr]    |
Dec 05 13:36:31.263 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:36:31.263 INFO [stderr] 
Dec 05 13:36:31.779 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 05 13:36:31.779 INFO [stderr]  --> src/main.rs:4:5
Dec 05 13:36:31.779 INFO [stderr]   |
Dec 05 13:36:31.779 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 05 13:36:31.779 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:31.779 INFO [stderr]   |
Dec 05 13:36:31.779 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 13:36:31.779 INFO [stderr] 
Dec 05 13:36:31.779 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 13:36:31.779 INFO [stderr]  --> src/main.rs:6:5
Dec 05 13:36:31.779 INFO [stderr]   |
Dec 05 13:36:31.779 INFO [stderr] 6 | use std::io::prelude::*;
Dec 05 13:36:31.779 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:31.779 INFO [stderr] 
Dec 05 13:36:32.207 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
Dec 05 13:36:32.211 INFO [stderr] su: No module specific data is present
Dec 05 13:36:32.532 INFO running `"docker" "inspect" "618b5fa2d5bbbe04d3f6f7ce1b1df76e96118794c7c06fea323e285b7d784604"`
Dec 05 13:36:32.762 INFO running `"docker" "rm" "-f" "618b5fa2d5bbbe04d3f6f7ce1b1df76e96118794c7c06fea323e285b7d784604"`
Dec 05 13:36:32.911 INFO [stdout] 618b5fa2d5bbbe04d3f6f7ce1b1df76e96118794c7c06fea323e285b7d784604
Dec 05 13:36:32.913 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 13:36:33.198 INFO [stdout] 959ebb45eae5a69716b12b0eb00734b9c92aead125a1cbdbd90422ca2b25ecb1
Dec 05 13:36:33.202 INFO running `"docker" "start" "-a" "959ebb45eae5a69716b12b0eb00734b9c92aead125a1cbdbd90422ca2b25ecb1"`
Dec 05 13:36:33.900 INFO [stderr] usermod: no changes
Dec 05 13:36:33.968 INFO [stderr]    Compiling pop3 v0.1.0 (/source)
Dec 05 13:36:34.331 INFO [stderr] warning: unused import: `pop3::pop3::pop3client::send_stat`
Dec 05 13:36:34.331 INFO [stderr]  --> src/main.rs:4:5
Dec 05 13:36:34.331 INFO [stderr]   |
Dec 05 13:36:34.331 INFO [stderr] 4 | use pop3::pop3::pop3client::send_stat;
Dec 05 13:36:34.331 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:34.331 INFO [stderr]   |
Dec 05 13:36:34.331 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 13:36:34.331 INFO [stderr] 
Dec 05 13:36:34.331 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 13:36:34.331 INFO [stderr]  --> src/main.rs:6:5
Dec 05 13:36:34.331 INFO [stderr]   |
Dec 05 13:36:34.331 INFO [stderr] 6 | use std::io::prelude::*;
Dec 05 13:36:34.331 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:34.331 INFO [stderr] 
Dec 05 13:36:34.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:36:34.536 INFO [stderr]   --> src/pop3/pop3client.rs:16:5
Dec 05 13:36:34.536 INFO [stderr]    |
Dec 05 13:36:34.536 INFO [stderr] 16 |     stream.flush();
Dec 05 13:36:34.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 05 13:36:34.536 INFO [stderr]    |
Dec 05 13:36:34.536 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 13:36:34.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:36:34.536 INFO [stderr] 
Dec 05 13:36:34.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:36:34.536 INFO [stderr]   --> src/pop3/pop3client.rs:42:5
Dec 05 13:36:34.536 INFO [stderr]    |
Dec 05 13:36:34.536 INFO [stderr] 42 |     stream.write(b"STAT");
Dec 05 13:36:34.536 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:36:34.536 INFO [stderr]    |
Dec 05 13:36:34.536 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:36:34.536 INFO [stderr] 
Dec 05 13:36:35.048 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 05 13:36:35.056 INFO [stderr] su: No module specific data is present
Dec 05 13:36:35.618 INFO running `"docker" "inspect" "959ebb45eae5a69716b12b0eb00734b9c92aead125a1cbdbd90422ca2b25ecb1"`
Dec 05 13:36:35.846 INFO running `"docker" "rm" "-f" "959ebb45eae5a69716b12b0eb00734b9c92aead125a1cbdbd90422ca2b25ecb1"`
Dec 05 13:36:36.211 INFO [stdout] 959ebb45eae5a69716b12b0eb00734b9c92aead125a1cbdbd90422ca2b25ecb1
Dec 05 13:36:36.220 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 13:36:36.716 INFO [stdout] b34e3511cad91a3d0c1bb31858d555dbf1041086165ae0acec02ce713d184fcf
Dec 05 13:36:36.724 INFO running `"docker" "start" "-a" "b34e3511cad91a3d0c1bb31858d555dbf1041086165ae0acec02ce713d184fcf"`
Dec 05 13:36:38.660 INFO [stderr] usermod: no changes
Dec 05 13:36:38.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 05 13:36:38.748 INFO [stderr]      Running /target/debug/deps/pop3-ab3aa6ca2a1786ed
Dec 05 13:36:38.760 INFO [stderr]      Running /target/debug/deps/pop3-032cb7292d50a3db
Dec 05 13:36:38.760 INFO [stdout] 
Dec 05 13:36:38.760 INFO [stdout] running 0 tests
Dec 05 13:36:38.760 INFO [stdout] 
Dec 05 13:36:38.760 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:36:38.760 INFO [stdout] 
Dec 05 13:36:38.772 INFO [stderr]    Doc-tests pop3
Dec 05 13:36:38.772 INFO [stdout] 
Dec 05 13:36:38.772 INFO [stdout] running 0 tests
Dec 05 13:36:38.772 INFO [stdout] 
Dec 05 13:36:38.772 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:36:38.772 INFO [stdout] 
Dec 05 13:36:39.113 INFO [stdout] 
Dec 05 13:36:39.113 INFO [stdout] running 0 tests
Dec 05 13:36:39.113 INFO [stdout] 
Dec 05 13:36:39.113 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:36:39.113 INFO [stdout] 
Dec 05 13:36:39.119 INFO [stderr] su: No module specific data is present
Dec 05 13:36:40.487 INFO running `"docker" "inspect" "b34e3511cad91a3d0c1bb31858d555dbf1041086165ae0acec02ce713d184fcf"`
Dec 05 13:36:40.804 INFO running `"docker" "rm" "-f" "b34e3511cad91a3d0c1bb31858d555dbf1041086165ae0acec02ce713d184fcf"`
Dec 05 13:36:41.232 INFO [stdout] b34e3511cad91a3d0c1bb31858d555dbf1041086165ae0acec02ce713d184fcf