Dec 17 19:52:39.692 INFO checking mcahriman/m590-proto against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:52:39.692 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/mcahriman/m590-proto:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:52:40.184 INFO [stdout] b40e5d4e827f5ef21090659b332f9b1c6328a095a5ec47156b164f563f21fff8
Dec 17 19:52:40.186 INFO running `"docker" "start" "-a" "b40e5d4e827f5ef21090659b332f9b1c6328a095a5ec47156b164f563f21fff8"`
Dec 17 19:52:41.696 INFO [stderr]     Checking serial-core v0.4.0
Dec 17 19:52:42.048 INFO [stderr]     Checking m590e-uart-proto v0.1.0 (/opt/crater/workdir)
Dec 17 19:52:42.204 INFO [stderr] warning: unused import: `std::io`
Dec 17 19:52:42.204 INFO [stderr]  --> src/main.rs:4:5
Dec 17 19:52:42.204 INFO [stderr]   |
Dec 17 19:52:42.205 INFO [stderr] 4 | use std::io;
Dec 17 19:52:42.205 INFO [stderr]   |     ^^^^^^^
Dec 17 19:52:42.205 INFO [stderr]   |
Dec 17 19:52:42.205 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:52:42.208 INFO [stderr] 
Dec 17 19:52:42.208 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 17 19:52:42.208 INFO [stderr]  --> src/main.rs:5:5
Dec 17 19:52:42.208 INFO [stderr]   |
Dec 17 19:52:42.208 INFO [stderr] 5 | use std::time::Duration;
Dec 17 19:52:42.208 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.208 INFO [stderr] 
Dec 17 19:52:42.208 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 19:52:42.208 INFO [stderr]  --> src/main.rs:9:5
Dec 17 19:52:42.208 INFO [stderr]   |
Dec 17 19:52:42.208 INFO [stderr] 9 | use std::io::prelude::*;
Dec 17 19:52:42.208 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.208 INFO [stderr] 
Dec 17 19:52:42.244 INFO [stderr] warning: unused import: `serial::prelude`
Dec 17 19:52:42.244 INFO [stderr]   --> src/main.rs:10:5
Dec 17 19:52:42.244 INFO [stderr]    |
Dec 17 19:52:42.244 INFO [stderr] 10 | use serial::prelude::*;
Dec 17 19:52:42.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 19:52:42.244 INFO [stderr] 
Dec 17 19:52:42.244 INFO [stderr] warning: constant item is never used: `E_ERR`
Dec 17 19:52:42.244 INFO [stderr]   --> src/main.rs:15:1
Dec 17 19:52:42.244 INFO [stderr]    |
Dec 17 19:52:42.244 INFO [stderr] 15 | const E_ERR: i32 = 1;
Dec 17 19:52:42.244 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.244 INFO [stderr]    |
Dec 17 19:52:42.244 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 19:52:42.244 INFO [stderr] 
Dec 17 19:52:42.305 INFO [stderr] warning: unused import: `std::io`
Dec 17 19:52:42.305 INFO [stderr]  --> src/main.rs:4:5
Dec 17 19:52:42.305 INFO [stderr]   |
Dec 17 19:52:42.305 INFO [stderr] 4 | use std::io;
Dec 17 19:52:42.305 INFO [stderr]   |     ^^^^^^^
Dec 17 19:52:42.305 INFO [stderr]   |
Dec 17 19:52:42.305 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:52:42.305 INFO [stderr] 
Dec 17 19:52:42.306 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 17 19:52:42.306 INFO [stderr]  --> src/main.rs:5:5
Dec 17 19:52:42.306 INFO [stderr]   |
Dec 17 19:52:42.306 INFO [stderr] 5 | use std::time::Duration;
Dec 17 19:52:42.306 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.306 INFO [stderr] 
Dec 17 19:52:42.306 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 19:52:42.306 INFO [stderr]  --> src/main.rs:9:5
Dec 17 19:52:42.306 INFO [stderr]   |
Dec 17 19:52:42.306 INFO [stderr] 9 | use std::io::prelude::*;
Dec 17 19:52:42.306 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.306 INFO [stderr] 
Dec 17 19:52:42.328 INFO [stderr] warning: unused import: `serial::prelude`
Dec 17 19:52:42.328 INFO [stderr]   --> src/main.rs:10:5
Dec 17 19:52:42.328 INFO [stderr]    |
Dec 17 19:52:42.328 INFO [stderr] 10 | use serial::prelude::*;
Dec 17 19:52:42.328 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 19:52:42.328 INFO [stderr] 
Dec 17 19:52:42.340 INFO [stderr] warning: constant item is never used: `E_ERR`
Dec 17 19:52:42.340 INFO [stderr]   --> src/main.rs:15:1
Dec 17 19:52:42.340 INFO [stderr]    |
Dec 17 19:52:42.340 INFO [stderr] 15 | const E_ERR: i32 = 1;
Dec 17 19:52:42.340 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:42.340 INFO [stderr]    |
Dec 17 19:52:42.340 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 19:52:42.340 INFO [stderr] 
Dec 17 19:52:42.372 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Dec 17 19:52:43.090 INFO running `"docker" "inspect" "b40e5d4e827f5ef21090659b332f9b1c6328a095a5ec47156b164f563f21fff8"`
Dec 17 19:52:43.424 INFO running `"docker" "rm" "-f" "b40e5d4e827f5ef21090659b332f9b1c6328a095a5ec47156b164f563f21fff8"`
Dec 17 19:52:43.792 INFO [stdout] b40e5d4e827f5ef21090659b332f9b1c6328a095a5ec47156b164f563f21fff8