Dec 15 04:40:31.955 INFO testing mio-utun-0.6.19 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 04:40:31.955 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 04:40:32.122 INFO [stdout] c1ceae9d384a5d6619ae3a1ad562c9bc1f4e745d225bad5a1128dc779e936899
Dec 15 04:40:32.128 INFO running `"docker" "start" "-a" "c1ceae9d384a5d6619ae3a1ad562c9bc1f4e745d225bad5a1128dc779e936899"`
Dec 15 04:40:32.542 INFO [stderr] usermod: no changes
Dec 15 04:40:32.595 INFO [stderr]    Compiling mio-utun v0.6.19 (/source)
Dec 15 04:40:33.810 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
Dec 15 04:40:33.814 INFO [stderr] su: No module specific data is present
Dec 15 04:40:34.070 INFO running `"docker" "inspect" "c1ceae9d384a5d6619ae3a1ad562c9bc1f4e745d225bad5a1128dc779e936899"`
Dec 15 04:40:34.173 INFO running `"docker" "rm" "-f" "c1ceae9d384a5d6619ae3a1ad562c9bc1f4e745d225bad5a1128dc779e936899"`
Dec 15 04:40:34.246 INFO [stdout] c1ceae9d384a5d6619ae3a1ad562c9bc1f4e745d225bad5a1128dc779e936899
Dec 15 04:40:34.248 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15 04:40:34.425 INFO [stdout] a814a4dec4ae3095993a16c8f18adcce5f64166ac6f36c78adfdb1534dfeed71
Dec 15 04:40:34.429 INFO running `"docker" "start" "-a" "a814a4dec4ae3095993a16c8f18adcce5f64166ac6f36c78adfdb1534dfeed71"`
Dec 15 04:40:34.779 INFO [stderr] usermod: no changes
Dec 15 04:40:34.843 INFO [stderr]    Compiling mio-utun v0.6.19 (/source)
Dec 15 04:40:36.419 INFO [stderr] warning: unused import: `Write`
Dec 15 04:40:36.419 INFO [stderr]  --> tests/echo.rs:4:21
Dec 15 04:40:36.419 INFO [stderr]   |
Dec 15 04:40:36.419 INFO [stderr] 4 | use std::io::{self, Write, Read};
Dec 15 04:40:36.419 INFO [stderr]   |                     ^^^^^
Dec 15 04:40:36.419 INFO [stderr]   |
Dec 15 04:40:36.419 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 04:40:36.419 INFO [stderr] 
Dec 15 04:40:36.419 INFO [stderr] warning: unused import: `std::io::ErrorKind::WouldBlock`
Dec 15 04:40:36.419 INFO [stderr]  --> tests/echo.rs:5:5
Dec 15 04:40:36.419 INFO [stderr]   |
Dec 15 04:40:36.419 INFO [stderr] 5 | use std::io::ErrorKind::WouldBlock;
Dec 15 04:40:36.419 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 04:40:36.419 INFO [stderr] 
Dec 15 04:40:36.419 INFO [stderr] warning: unused macro definition
Dec 15 04:40:36.419 INFO [stderr]   --> tests/echo.rs:10:1
Dec 15 04:40:36.419 INFO [stderr]    |
Dec 15 04:40:36.419 INFO [stderr] 10 | / macro_rules! t {
Dec 15 04:40:36.419 INFO [stderr] 11 | |     ($e:expr) => (match $e {
Dec 15 04:40:36.419 INFO [stderr] 12 | |         Ok(e) => e,
Dec 15 04:40:36.419 INFO [stderr] 13 | |         Err(e) => panic!("{} failed with {}", stringify!($e), e),
Dec 15 04:40:36.419 INFO [stderr] 14 | |     })
Dec 15 04:40:36.419 INFO [stderr] 15 | | }
Dec 15 04:40:36.419 INFO [stderr]    | |_^
Dec 15 04:40:36.419 INFO [stderr]    |
Dec 15 04:40:36.419 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 15 04:40:36.419 INFO [stderr] 
Dec 15 04:40:36.468 INFO [stderr] warning: constant item is never used: `SERVER`
Dec 15 04:40:36.468 INFO [stderr]   --> tests/echo.rs:19:5
Dec 15 04:40:36.468 INFO [stderr]    |
Dec 15 04:40:36.468 INFO [stderr] 19 |     const SERVER: Token = Token(0);
Dec 15 04:40:36.468 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 04:40:36.468 INFO [stderr]    |
Dec 15 04:40:36.468 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 04:40:36.468 INFO [stderr] 
Dec 15 04:40:37.422 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
Dec 15 04:40:37.423 INFO [stderr] su: No module specific data is present
Dec 15 04:40:37.962 INFO running `"docker" "inspect" "a814a4dec4ae3095993a16c8f18adcce5f64166ac6f36c78adfdb1534dfeed71"`
Dec 15 04:40:38.032 INFO running `"docker" "rm" "-f" "a814a4dec4ae3095993a16c8f18adcce5f64166ac6f36c78adfdb1534dfeed71"`
Dec 15 04:40:38.166 INFO [stdout] a814a4dec4ae3095993a16c8f18adcce5f64166ac6f36c78adfdb1534dfeed71