Oct 31 22:43:22.848 INFO checking ravendyg/rust-playground against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 22:43:22.848 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"`
Oct 31 22:43:23.332 INFO blam! c8d08660564fc3beb6ffad188229d18b47c1a4a9921e1831c1c6f9888bc2de7f
Oct 31 22:43:23.346 INFO running `"docker" "start" "-a" "c8d08660564fc3beb6ffad188229d18b47c1a4a9921e1831c1c6f9888bc2de7f"`
Oct 31 22:43:24.773 INFO kablam! usermod: no changes
Oct 31 22:43:24.868 INFO kablam!     Checking guessing v0.1.0 (/source)
Oct 31 22:43:25.364 INFO kablam! warning: unused variable: `x`
Oct 31 22:43:25.364 INFO kablam!   --> src/main.rs:60:7
Oct 31 22:43:25.364 INFO kablam!    |
Oct 31 22:43:25.364 INFO kablam! 60 |   let x: Option<i32> = Option::Some(5);
Oct 31 22:43:25.364 INFO kablam!    |       ^ help: consider using `_x` instead
Oct 31 22:43:25.364 INFO kablam!    |
Oct 31 22:43:25.364 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 22:43:25.364 INFO kablam! 
Oct 31 22:43:25.364 INFO kablam! warning: unused variable: `q`
Oct 31 22:43:25.364 INFO kablam!   --> src/main.rs:62:7
Oct 31 22:43:25.364 INFO kablam!    |
Oct 31 22:43:25.364 INFO kablam! 62 |   let q: Option<f64> = Option::Some(5f64);
Oct 31 22:43:25.364 INFO kablam!    |       ^ help: consider using `_q` instead
Oct 31 22:43:25.364 INFO kablam! 
Oct 31 22:43:25.364 INFO kablam! warning: unused variable: `b`
Oct 31 22:43:25.364 INFO kablam!   --> src/main.rs:71:7
Oct 31 22:43:25.364 INFO kablam!    |
Oct 31 22:43:25.364 INFO kablam! 71 |   let b = 10;
Oct 31 22:43:25.364 INFO kablam!    |       ^ help: consider using `_b` instead
Oct 31 22:43:25.365 INFO kablam! 
Oct 31 22:43:25.365 INFO kablam! warning: variant is never constructed: `None`
Oct 31 22:43:25.365 INFO kablam!   --> src/main.rs:49:3
Oct 31 22:43:25.365 INFO kablam!    |
Oct 31 22:43:25.365 INFO kablam! 49 |   None
Oct 31 22:43:25.365 INFO kablam!    |   ^^^^
Oct 31 22:43:25.365 INFO kablam!    |
Oct 31 22:43:25.365 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 31 22:43:25.365 INFO kablam! 
Oct 31 22:43:25.365 INFO kablam! warning: enum is never used: `Result`
Oct 31 22:43:25.365 INFO kablam!   --> src/main.rs:53:1
Oct 31 22:43:25.365 INFO kablam!    |
Oct 31 22:43:25.365 INFO kablam! 53 | enum Result<T, E> {
Oct 31 22:43:25.365 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Oct 31 22:43:25.365 INFO kablam! 
Oct 31 22:43:25.424 INFO kablam! warning: unused variable: `x`
Oct 31 22:43:25.424 INFO kablam!   --> src/main.rs:60:7
Oct 31 22:43:25.424 INFO kablam!    |
Oct 31 22:43:25.424 INFO kablam! 60 |   let x: Option<i32> = Option::Some(5);
Oct 31 22:43:25.424 INFO kablam!    |       ^ help: consider using `_x` instead
Oct 31 22:43:25.424 INFO kablam!    |
Oct 31 22:43:25.424 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 22:43:25.424 INFO kablam! 
Oct 31 22:43:25.424 INFO kablam! warning: unused variable: `q`
Oct 31 22:43:25.424 INFO kablam!   --> src/main.rs:62:7
Oct 31 22:43:25.424 INFO kablam!    |
Oct 31 22:43:25.424 INFO kablam! 62 |   let q: Option<f64> = Option::Some(5f64);
Oct 31 22:43:25.424 INFO kablam!    |       ^ help: consider using `_q` instead
Oct 31 22:43:25.424 INFO kablam! 
Oct 31 22:43:25.424 INFO kablam! warning: unused variable: `b`
Oct 31 22:43:25.424 INFO kablam!   --> src/main.rs:71:7
Oct 31 22:43:25.424 INFO kablam!    |
Oct 31 22:43:25.424 INFO kablam! 71 |   let b = 10;
Oct 31 22:43:25.424 INFO kablam!    |       ^ help: consider using `_b` instead
Oct 31 22:43:25.424 INFO kablam! 
Oct 31 22:43:25.444 INFO kablam! warning: variant is never constructed: `None`
Oct 31 22:43:25.444 INFO kablam!   --> src/main.rs:49:3
Oct 31 22:43:25.444 INFO kablam!    |
Oct 31 22:43:25.444 INFO kablam! 49 |   None
Oct 31 22:43:25.444 INFO kablam!    |   ^^^^
Oct 31 22:43:25.444 INFO kablam!    |
Oct 31 22:43:25.444 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 31 22:43:25.444 INFO kablam! 
Oct 31 22:43:25.444 INFO kablam! warning: enum is never used: `Result`
Oct 31 22:43:25.444 INFO kablam!   --> src/main.rs:53:1
Oct 31 22:43:25.444 INFO kablam!    |
Oct 31 22:43:25.444 INFO kablam! 53 | enum Result<T, E> {
Oct 31 22:43:25.444 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Oct 31 22:43:25.444 INFO kablam! 
Oct 31 22:43:25.476 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Oct 31 22:43:25.476 INFO kablam! su: No module specific data is present
Oct 31 22:43:26.488 INFO running `"docker" "rm" "-f" "c8d08660564fc3beb6ffad188229d18b47c1a4a9921e1831c1c6f9888bc2de7f"`
Oct 31 22:43:26.784 INFO blam! c8d08660564fc3beb6ffad188229d18b47c1a4a9921e1831c1c6f9888bc2de7f