[INFO] crate mio-utun 0.6.19 is already in cache
[INFO] checking mio-utun-0.6.19 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] extracting crate mio-utun 0.6.19 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate mio-utun 0.6.19 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mio-utun 0.6.19
[INFO] finished tweaking crates.io crate mio-utun 0.6.19
[INFO] tweaked toml for crates.io crate mio-utun 0.6.19 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2d44bd60c0c9e3b2ff9fc89751bb0204aa9844510dcc49557c6a7c817b422894
[INFO] running `"docker" "start" "-a" "2d44bd60c0c9e3b2ff9fc89751bb0204aa9844510dcc49557c6a7c817b422894"`
[INFO] [stderr]     Checking mio-utun v0.6.19 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> tests/echo.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Write, Read};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::ErrorKind::WouldBlock`
[INFO] [stderr]  --> tests/echo.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::ErrorKind::WouldBlock;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> tests/echo.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / macro_rules! t {
[INFO] [stderr] 11 | |     ($e:expr) => (match $e {
[INFO] [stderr] 12 | |         Ok(e) => e,
[INFO] [stderr] 13 | |         Err(e) => panic!("{} failed with {}", stringify!($e), e),
[INFO] [stderr] 14 | |     })
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SERVER`
[INFO] [stderr]   --> tests/echo.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     const SERVER: Token = Token(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `"docker" "inspect" "2d44bd60c0c9e3b2ff9fc89751bb0204aa9844510dcc49557c6a7c817b422894"`
[INFO] running `"docker" "rm" "-f" "2d44bd60c0c9e3b2ff9fc89751bb0204aa9844510dcc49557c6a7c817b422894"`
[INFO] [stdout] 2d44bd60c0c9e3b2ff9fc89751bb0204aa9844510dcc49557c6a7c817b422894