Nov 07 05:41:27.414 INFO checking BenjaminGuenin/rust-programming-tutorial against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 05:41:27.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-4/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 07 05:41:27.934 INFO blam! 0fdb0956484a42843dd078235383b6fa27a8035a50d587be04f51abe6054268f
Nov 07 05:41:27.941 INFO running `"docker" "start" "-a" "0fdb0956484a42843dd078235383b6fa27a8035a50d587be04f51abe6054268f"`
Nov 07 05:41:29.708 INFO kablam! usermod: no changes
Nov 07 05:41:29.768 INFO kablam!     Checking rust-programming-tutorial v0.1.0 (/source)
Nov 07 05:41:30.276 INFO kablam! warning: unused variable: `immutable_string`
Nov 07 05:41:30.277 INFO kablam!  --> src/main.rs:3:9
Nov 07 05:41:30.277 INFO kablam!   |
Nov 07 05:41:30.277 INFO kablam! 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 07 05:41:30.278 INFO kablam!   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 07 05:41:30.278 INFO kablam!   |
Nov 07 05:41:30.278 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 07 05:41:30.278 INFO kablam! 
Nov 07 05:41:30.279 INFO kablam! warning: unused variable: `s`
Nov 07 05:41:30.279 INFO kablam!   --> src/main.rs:11:13
Nov 07 05:41:30.279 INFO kablam!    |
Nov 07 05:41:30.279 INFO kablam! 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 07 05:41:30.280 INFO kablam!    |             ^ help: consider using `_s` instead
Nov 07 05:41:30.280 INFO kablam! 
Nov 07 05:41:30.466 INFO kablam! warning: unused variable: `immutable_string`
Nov 07 05:41:30.466 INFO kablam!  --> src/main.rs:3:9
Nov 07 05:41:30.466 INFO kablam!   |
Nov 07 05:41:30.466 INFO kablam! 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 07 05:41:30.466 INFO kablam!   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 07 05:41:30.466 INFO kablam!   |
Nov 07 05:41:30.466 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 07 05:41:30.466 INFO kablam! 
Nov 07 05:41:30.466 INFO kablam! warning: unused variable: `s`
Nov 07 05:41:30.466 INFO kablam!   --> src/main.rs:11:13
Nov 07 05:41:30.466 INFO kablam!    |
Nov 07 05:41:30.466 INFO kablam! 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 07 05:41:30.466 INFO kablam!    |             ^ help: consider using `_s` instead
Nov 07 05:41:30.466 INFO kablam! 
Nov 07 05:41:30.518 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Nov 07 05:41:30.524 INFO kablam! su: No module specific data is present
Nov 07 05:41:31.218 INFO running `"docker" "rm" "-f" "0fdb0956484a42843dd078235383b6fa27a8035a50d587be04f51abe6054268f"`
Nov 07 05:41:31.525 INFO blam! 0fdb0956484a42843dd078235383b6fa27a8035a50d587be04f51abe6054268f