Nov 01 12:59:11.991 INFO checking BenjaminGuenin/rust-programming-tutorial against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 12:59:11.991 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 12:59:12.346 INFO blam! e29ab557731c886c4de210424295e15759fd4f8cf19a9246a489b029522b2e94
Nov 01 12:59:12.358 INFO running `"docker" "start" "-a" "e29ab557731c886c4de210424295e15759fd4f8cf19a9246a489b029522b2e94"`
Nov 01 12:59:13.010 INFO kablam! usermod: no changes
Nov 01 12:59:13.059 INFO kablam!     Checking rust-programming-tutorial v0.1.0 (/source)
Nov 01 12:59:13.533 INFO kablam! warning: unused variable: `immutable_string`
Nov 01 12:59:13.533 INFO kablam!  --> src/main.rs:3:9
Nov 01 12:59:13.533 INFO kablam!   |
Nov 01 12:59:13.533 INFO kablam! 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 01 12:59:13.533 INFO kablam!   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 01 12:59:13.533 INFO kablam!   |
Nov 01 12:59:13.533 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 12:59:13.533 INFO kablam! 
Nov 01 12:59:13.533 INFO kablam! warning: unused variable: `s`
Nov 01 12:59:13.533 INFO kablam!   --> src/main.rs:11:13
Nov 01 12:59:13.533 INFO kablam!    |
Nov 01 12:59:13.533 INFO kablam! 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 01 12:59:13.533 INFO kablam!    |             ^ help: consider using `_s` instead
Nov 01 12:59:13.533 INFO kablam! 
Nov 01 12:59:13.548 INFO kablam! warning: unused variable: `immutable_string`
Nov 01 12:59:13.548 INFO kablam!  --> src/main.rs:3:9
Nov 01 12:59:13.548 INFO kablam!   |
Nov 01 12:59:13.548 INFO kablam! 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Nov 01 12:59:13.549 INFO kablam!   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Nov 01 12:59:13.549 INFO kablam!   |
Nov 01 12:59:13.549 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 12:59:13.549 INFO kablam! 
Nov 01 12:59:13.549 INFO kablam! warning: unused variable: `s`
Nov 01 12:59:13.549 INFO kablam!   --> src/main.rs:11:13
Nov 01 12:59:13.549 INFO kablam!    |
Nov 01 12:59:13.550 INFO kablam! 11 |         let s = String::from("hello"); // s is valid from this point forward
Nov 01 12:59:13.550 INFO kablam!    |             ^ help: consider using `_s` instead
Nov 01 12:59:13.550 INFO kablam! 
Nov 01 12:59:13.563 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Nov 01 12:59:13.567 INFO kablam! su: No module specific data is present
Nov 01 12:59:13.856 INFO running `"docker" "rm" "-f" "e29ab557731c886c4de210424295e15759fd4f8cf19a9246a489b029522b2e94"`
Nov 01 12:59:13.972 INFO blam! e29ab557731c886c4de210424295e15759fd4f8cf19a9246a489b029522b2e94