Dec 04 18:00:41.768 INFO checking grenade/rust-tutorial against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 18:00:41.768 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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 04 18:00:42.260 INFO [stdout] e2fc586d142ed38771e01383a84c2e59560b0a7929d03e384e56debd23469b29
Dec 04 18:00:42.265 INFO running `"docker" "start" "-a" "e2fc586d142ed38771e01383a84c2e59560b0a7929d03e384e56debd23469b29"`
Dec 04 18:00:43.460 INFO [stderr] usermod: no changes
Dec 04 18:00:43.583 INFO [stderr]     Checking redisish v0.1.0 (/source/redisish)
Dec 04 18:00:43.584 INFO [stderr]     Checking tutorial v0.1.0 (/source)
Dec 04 18:00:43.589 INFO [stderr]     Checking clap v2.24.2
Dec 04 18:00:51.131 INFO [stderr]     Checking mailbox v0.1.0 (/source/mailbox)
Dec 04 18:00:51.919 INFO [stderr] warning: unused import: `Error`
Dec 04 18:00:51.919 INFO [stderr]  --> mailbox/src/main.rs:4:32
Dec 04 18:00:51.919 INFO [stderr]   |
Dec 04 18:00:51.919 INFO [stderr] 4 | use redisish::{parse, Command, Error};
Dec 04 18:00:51.919 INFO [stderr]   |                                ^^^^^
Dec 04 18:00:51.919 INFO [stderr]   |
Dec 04 18:00:51.919 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 18:00:51.919 INFO [stderr] 
Dec 04 18:00:51.956 INFO [stderr] warning: unused import: `Error`
Dec 04 18:00:51.956 INFO [stderr]  --> mailbox/src/main.rs:4:32
Dec 04 18:00:51.956 INFO [stderr]   |
Dec 04 18:00:51.956 INFO [stderr] 4 | use redisish::{parse, Command, Error};
Dec 04 18:00:51.956 INFO [stderr]   |                                ^^^^^
Dec 04 18:00:51.956 INFO [stderr]   |
Dec 04 18:00:51.956 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 18:00:51.956 INFO [stderr] 
Dec 04 18:00:51.999 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 18:00:51.999 INFO [stderr]   --> mailbox/src/main.rs:65:5
Dec 04 18:00:51.999 INFO [stderr]    |
Dec 04 18:00:51.999 INFO [stderr] 65 |     stream.read_to_string(&mut buffer);
Dec 04 18:00:51.999 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:00:51.999 INFO [stderr]    |
Dec 04 18:00:51.999 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 18:00:51.999 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 18:00:51.999 INFO [stderr] 
Dec 04 18:00:52.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 18:00:52.041 INFO [stderr]   --> mailbox/src/main.rs:65:5
Dec 04 18:00:52.041 INFO [stderr]    |
Dec 04 18:00:52.041 INFO [stderr] 65 |     stream.read_to_string(&mut buffer);
Dec 04 18:00:52.041 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:00:52.041 INFO [stderr]    |
Dec 04 18:00:52.041 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 18:00:52.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 18:00:52.041 INFO [stderr] 
Dec 04 18:00:52.050 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.57s
Dec 04 18:00:52.073 INFO [stderr] su: No module specific data is present
Dec 04 18:00:52.757 INFO running `"docker" "inspect" "e2fc586d142ed38771e01383a84c2e59560b0a7929d03e384e56debd23469b29"`
Dec 04 18:00:52.989 INFO running `"docker" "rm" "-f" "e2fc586d142ed38771e01383a84c2e59560b0a7929d03e384e56debd23469b29"`
Dec 04 18:00:53.318 INFO [stdout] e2fc586d142ed38771e01383a84c2e59560b0a7929d03e384e56debd23469b29