[INFO] fetching crate udt 0.2.0...
[INFO] extracting crate udt 0.2.0 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/udt/0.2.0
[INFO] extracting crate udt 0.2.0 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/udt/0.2.0
[INFO] validating manifest of udt-0.2.0 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of udt-0.2.0 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing udt-0.2.0
[INFO] removed path dependency libudt4-sys from udt-0.2.0
[INFO] finished frobbing udt-0.2.0
[INFO] frobbed toml for udt-0.2.0 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/udt/0.2.0/Cargo.toml
[INFO] started frobbing udt-0.2.0
[INFO] removed path dependency libudt4-sys from udt-0.2.0
[INFO] finished frobbing udt-0.2.0
[INFO] frobbed toml for udt-0.2.0 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/udt/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libudt4-sys v0.2.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking udt-0.2.0 against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-5/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/udt/0.2.0:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 40b2b87f3e7d2caf6cbc275793e8744d11dce103c4f70bb6f0f4c4bfce8b1506
[INFO] running `"docker" "start" "-a" "40b2b87f3e7d2caf6cbc275793e8744d11dce103c4f70bb6f0f4c4bfce8b1506"`
[INFO] [stderr]    Compiling libudt4-sys v0.2.0
[INFO] [stderr]     Checking udt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]     --> src/lib.rs:1057:76
[INFO] [stderr]      |
[INFO] [stderr] 1057 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]     --> src/lib.rs:1078:76
[INFO] [stderr]      |
[INFO] [stderr] 1078 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/lib.rs:1057:5
[INFO] [stderr]      |
[INFO] [stderr] 1057 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/lib.rs:1078:5
[INFO] [stderr]      |
[INFO] [stderr] 1078 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.62s
[INFO] running `"docker" "inspect" "40b2b87f3e7d2caf6cbc275793e8744d11dce103c4f70bb6f0f4c4bfce8b1506"`
[INFO] running `"docker" "rm" "-f" "40b2b87f3e7d2caf6cbc275793e8744d11dce103c4f70bb6f0f4c4bfce8b1506"`
[INFO] [stdout] 40b2b87f3e7d2caf6cbc275793e8744d11dce103c4f70bb6f0f4c4bfce8b1506