Sep 20 23:35:27.697 INFO checking SamYaple/waterrower-rs against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 20 23:35:27.697 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 20 23:35:27.697 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 23:35:27.972 INFO blam! 1106ebd6366a4a3baa3d1f603a30050704666b068131fdef29ba0f145d746aed
Sep 20 23:35:27.974 INFO running `"docker" "start" "-a" "1106ebd6366a4a3baa3d1f603a30050704666b068131fdef29ba0f145d746aed"`
Sep 20 23:35:29.195 INFO kablam! usermod: no changes
Sep 20 23:35:29.290 INFO kablam!     Checking libc v0.2.16
Sep 20 23:35:29.294 INFO kablam!     Checking bufstream v0.1.2
Sep 20 23:35:30.187 INFO kablam!     Checking ioctl-rs v0.1.5
Sep 20 23:35:30.187 INFO kablam!     Checking termios v0.2.2
Sep 20 23:35:30.203 INFO kablam!     Checking nix v0.7.0
Sep 20 23:35:30.862 INFO kablam!     Checking serial v0.3.4
Sep 20 23:35:34.245 INFO kablam!     Checking waterrower v0.1.0 (/source)
Sep 20 23:35:34.502 INFO kablam! warning: unused import: `std::str`
Sep 20 23:35:34.502 INFO kablam!   --> src/main.rs:11:5
Sep 20 23:35:34.502 INFO kablam!    |
Sep 20 23:35:34.502 INFO kablam! 11 | use std::str;
Sep 20 23:35:34.502 INFO kablam!    |     ^^^^^^^^
Sep 20 23:35:34.502 INFO kablam!    |
Sep 20 23:35:34.502 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 20 23:35:34.502 INFO kablam! 
Sep 20 23:35:34.624 INFO kablam! warning: unused variable: `serialtx`
Sep 20 23:35:34.624 INFO kablam!   --> src/main.rs:33:10
Sep 20 23:35:34.624 INFO kablam!    |
Sep 20 23:35:34.624 INFO kablam! 33 |     let (serialtx, serialrx) = mpsc::channel();
Sep 20 23:35:34.624 INFO kablam!    |          ^^^^^^^^ help: consider using `_serialtx` instead
Sep 20 23:35:34.624 INFO kablam!    |
Sep 20 23:35:34.624 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 20 23:35:34.624 INFO kablam! 
Sep 20 23:35:34.634 INFO kablam! warning: unused import: `std::str`
Sep 20 23:35:34.634 INFO kablam!   --> src/main.rs:11:5
Sep 20 23:35:34.634 INFO kablam!    |
Sep 20 23:35:34.634 INFO kablam! 11 | use std::str;
Sep 20 23:35:34.634 INFO kablam!    |     ^^^^^^^^
Sep 20 23:35:34.634 INFO kablam!    |
Sep 20 23:35:34.634 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 20 23:35:34.634 INFO kablam! 
Sep 20 23:35:34.643 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 23:35:34.643 INFO kablam!   --> src/main.rs:27:14
Sep 20 23:35:34.643 INFO kablam!    |
Sep 20 23:35:34.643 INFO kablam! 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Sep 20 23:35:34.643 INFO kablam!    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:35:34.643 INFO kablam!    |
Sep 20 23:35:34.643 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 20 23:35:34.643 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 23:35:34.643 INFO kablam! 
Sep 20 23:35:34.643 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 23:35:34.643 INFO kablam!   --> src/main.rs:28:14
Sep 20 23:35:34.643 INFO kablam!    |
Sep 20 23:35:34.643 INFO kablam! 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Sep 20 23:35:34.643 INFO kablam!    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:35:34.643 INFO kablam!    |
Sep 20 23:35:34.643 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 23:35:34.643 INFO kablam! 
Sep 20 23:35:34.758 INFO kablam! warning: unused variable: `serialtx`
Sep 20 23:35:34.758 INFO kablam!   --> src/main.rs:33:10
Sep 20 23:35:34.758 INFO kablam!    |
Sep 20 23:35:34.758 INFO kablam! 33 |     let (serialtx, serialrx) = mpsc::channel();
Sep 20 23:35:34.758 INFO kablam!    |          ^^^^^^^^ help: consider using `_serialtx` instead
Sep 20 23:35:34.758 INFO kablam!    |
Sep 20 23:35:34.758 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 20 23:35:34.758 INFO kablam! 
Sep 20 23:35:34.770 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 23:35:34.770 INFO kablam!   --> src/main.rs:27:14
Sep 20 23:35:34.770 INFO kablam!    |
Sep 20 23:35:34.770 INFO kablam! 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Sep 20 23:35:34.770 INFO kablam!    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:35:34.770 INFO kablam!    |
Sep 20 23:35:34.770 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 20 23:35:34.770 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 23:35:34.770 INFO kablam! 
Sep 20 23:35:34.770 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 23:35:34.770 INFO kablam!   --> src/main.rs:28:14
Sep 20 23:35:34.770 INFO kablam!    |
Sep 20 23:35:34.770 INFO kablam! 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Sep 20 23:35:34.770 INFO kablam!    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:35:34.770 INFO kablam!    |
Sep 20 23:35:34.770 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 23:35:34.770 INFO kablam! 
Sep 20 23:35:34.806 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
Sep 20 23:35:34.806 INFO kablam! su: No module specific data is present
Sep 20 23:35:36.060 INFO running `"docker" "rm" "-f" "1106ebd6366a4a3baa3d1f603a30050704666b068131fdef29ba0f145d746aed"`
Sep 20 23:35:36.170 INFO blam! 1106ebd6366a4a3baa3d1f603a30050704666b068131fdef29ba0f145d746aed