[INFO] crate mio-utun 0.6.19 is already in cache
[INFO] extracting crate mio-utun 0.6.19 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/mio-utun/0.6.19
[INFO] extracting crate mio-utun 0.6.19 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/mio-utun/0.6.19
[INFO] validating manifest of mio-utun-0.6.19 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mio-utun-0.6.19 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mio-utun-0.6.19
[INFO] finished frobbing mio-utun-0.6.19
[INFO] frobbed toml for mio-utun-0.6.19 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/mio-utun/0.6.19/Cargo.toml
[INFO] started frobbing mio-utun-0.6.19
[INFO] finished frobbing mio-utun-0.6.19
[INFO] frobbed toml for mio-utun-0.6.19 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/mio-utun/0.6.19/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mio-utun-0.6.19 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/mio-utun/0.6.19:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9dfe39ba8bd16af83c8b631fa66b37f149303caef4fe3b88d52bf5295427c321
[INFO] running `"docker" "start" "-a" "9dfe39ba8bd16af83c8b631fa66b37f149303caef4fe3b88d52bf5295427c321"`
[INFO] [stderr]     Checking mio-utun v0.6.19 (/opt/crater/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 1.47s
[INFO] running `"docker" "inspect" "9dfe39ba8bd16af83c8b631fa66b37f149303caef4fe3b88d52bf5295427c321"`
[INFO] running `"docker" "rm" "-f" "9dfe39ba8bd16af83c8b631fa66b37f149303caef4fe3b88d52bf5295427c321"`
[INFO] [stdout] 9dfe39ba8bd16af83c8b631fa66b37f149303caef4fe3b88d52bf5295427c321