Dec 07 02:35:24.944 INFO testing relay-mono-0.1.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 02:35:24.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 02:35:25.193 INFO [stdout] 601b7651fd16bd9340b8228445c46739aee6be672522d2bcbd8cfa4a10ad5fcb
Dec 07 02:35:25.195 INFO running `"docker" "start" "-a" "601b7651fd16bd9340b8228445c46739aee6be672522d2bcbd8cfa4a10ad5fcb"`
Dec 07 02:35:25.800 INFO [stderr] usermod: no changes
Dec 07 02:35:25.840 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 07 02:35:25.840 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 07 02:35:25.840 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 07 02:35:25.840 INFO [stderr] files will be included as a binary target:
Dec 07 02:35:25.840 INFO [stderr] 
Dec 07 02:35:25.840 INFO [stderr] * /source/src/main.rs
Dec 07 02:35:25.840 INFO [stderr] 
Dec 07 02:35:25.840 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 07 02:35:25.840 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 07 02:35:25.840 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 07 02:35:25.840 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 07 02:35:25.840 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 07 02:35:25.840 INFO [stderr] 
Dec 07 02:35:25.840 INFO [stderr] For more information on this warning you can consult
Dec 07 02:35:25.840 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 07 02:35:25.840 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `tessel-relay`,
Dec 07 02:35:25.840 INFO [stderr] please set bin.path in Cargo.toml
Dec 07 02:35:25.860 INFO [stderr]    Compiling tessel v0.3.1
Dec 07 02:35:26.889 INFO [stderr]    Compiling relay-mono v0.1.0 (/source)
Dec 07 02:35:27.639 INFO [stderr] warning: unused import: `std::thread`
Dec 07 02:35:27.639 INFO [stderr]  --> src/lib.rs:6:5
Dec 07 02:35:27.639 INFO [stderr]   |
Dec 07 02:35:27.639 INFO [stderr] 6 | use std::thread;
Dec 07 02:35:27.639 INFO [stderr]   |     ^^^^^^^^^^^
Dec 07 02:35:27.639 INFO [stderr]   |
Dec 07 02:35:27.639 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 07 02:35:27.639 INFO [stderr] 
Dec 07 02:35:27.639 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 07 02:35:27.639 INFO [stderr]  --> src/lib.rs:7:5
Dec 07 02:35:27.639 INFO [stderr]   |
Dec 07 02:35:27.639 INFO [stderr] 7 | use std::time::Duration;
Dec 07 02:35:27.639 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 07 02:35:27.639 INFO [stderr] 
Dec 07 02:35:27.639 INFO [stderr] warning: unused import: `std::ops::Range`
Dec 07 02:35:27.639 INFO [stderr]  --> src/lib.rs:8:5
Dec 07 02:35:27.639 INFO [stderr]   |
Dec 07 02:35:27.639 INFO [stderr] 8 | use std::ops::Range;
Dec 07 02:35:27.639 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 07 02:35:27.639 INFO [stderr] 
Dec 07 02:35:27.666 INFO [stderr] warning: unused variable: `i2c`
Dec 07 02:35:27.666 INFO [stderr]   --> src/lib.rs:19:14
Dec 07 02:35:27.666 INFO [stderr]    |
Dec 07 02:35:27.666 INFO [stderr] 19 |         let (i2c, gpio) = port.i2c();
Dec 07 02:35:27.666 INFO [stderr]    |              ^^^ help: consider using `_i2c` instead
Dec 07 02:35:27.666 INFO [stderr]    |
Dec 07 02:35:27.666 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 07 02:35:27.666 INFO [stderr] 
Dec 07 02:35:27.677 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 02:35:27.677 INFO [stderr]   --> src/lib.rs:32:9
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr] 32 |         self.pin1.output(false);
Dec 07 02:35:27.677 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 07 02:35:27.677 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 02:35:27.677 INFO [stderr] 
Dec 07 02:35:27.677 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 02:35:27.677 INFO [stderr]   --> src/lib.rs:33:9
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr] 33 |         self.pin2.output(false);
Dec 07 02:35:27.677 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 02:35:27.677 INFO [stderr] 
Dec 07 02:35:27.677 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 02:35:27.677 INFO [stderr]   --> src/lib.rs:40:13
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr] 40 |             self.pin1.output(value);
Dec 07 02:35:27.677 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 02:35:27.677 INFO [stderr] 
Dec 07 02:35:27.677 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 07 02:35:27.677 INFO [stderr]   --> src/lib.rs:43:13
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr] 43 |             self.pin2.output(value);
Dec 07 02:35:27.677 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 02:35:27.677 INFO [stderr]    |
Dec 07 02:35:27.677 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 07 02:35:27.677 INFO [stderr] 
Dec 07 02:35:28.051 INFO [stderr] error[E0463]: can't find crate for `alloc_system`
Dec 07 02:35:28.051 INFO [stderr]  --> src/main.rs:2:1
Dec 07 02:35:28.051 INFO [stderr]   |
Dec 07 02:35:28.051 INFO [stderr] 2 | extern crate alloc_system;
Dec 07 02:35:28.051 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
Dec 07 02:35:28.051 INFO [stderr] 
Dec 07 02:35:28.059 INFO [stderr] error: aborting due to previous error
Dec 07 02:35:28.059 INFO [stderr] 
Dec 07 02:35:28.059 INFO [stderr] For more information about this error, try `rustc --explain E0463`.
Dec 07 02:35:28.065 INFO [stderr] error: Could not compile `relay-mono`.
Dec 07 02:35:28.065 INFO [stderr] 
Dec 07 02:35:28.065 INFO [stderr] To learn more, run the command again with --verbose.
Dec 07 02:35:28.066 INFO [stderr] su: No module specific data is present
Dec 07 02:35:28.308 INFO running `"docker" "inspect" "601b7651fd16bd9340b8228445c46739aee6be672522d2bcbd8cfa4a10ad5fcb"`
Dec 07 02:35:28.388 INFO running `"docker" "rm" "-f" "601b7651fd16bd9340b8228445c46739aee6be672522d2bcbd8cfa4a10ad5fcb"`
Dec 07 02:35:28.461 INFO [stdout] 601b7651fd16bd9340b8228445c46739aee6be672522d2bcbd8cfa4a10ad5fcb