Nov 29 19:58:59.149 INFO checking ravendyg/rust-playground against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 19:58:59.149 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 19:58:59.440 INFO [stdout] dbfb471486e0515ef2a6434a92f411716ef991b0e5fc79d592c328b20bcf1ab6
Nov 29 19:58:59.442 INFO running `"docker" "start" "-a" "dbfb471486e0515ef2a6434a92f411716ef991b0e5fc79d592c328b20bcf1ab6"`
Nov 29 19:59:00.836 INFO [stderr] usermod: no changes
Nov 29 19:59:00.896 INFO [stderr]     Checking guessing v0.1.0 (/source)
Nov 29 19:59:01.224 INFO [stderr] warning: unused variable: `x`
Nov 29 19:59:01.224 INFO [stderr]   --> src/main.rs:60:7
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr] 60 |   let x: Option<i32> = Option::Some(5);
Nov 29 19:59:01.224 INFO [stderr]    |       ^ help: consider using `_x` instead
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 19:59:01.224 INFO [stderr] 
Nov 29 19:59:01.224 INFO [stderr] warning: unused variable: `q`
Nov 29 19:59:01.224 INFO [stderr]   --> src/main.rs:62:7
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr] 62 |   let q: Option<f64> = Option::Some(5f64);
Nov 29 19:59:01.224 INFO [stderr]    |       ^ help: consider using `_q` instead
Nov 29 19:59:01.224 INFO [stderr] 
Nov 29 19:59:01.224 INFO [stderr] warning: unused variable: `b`
Nov 29 19:59:01.224 INFO [stderr]   --> src/main.rs:71:7
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr] 71 |   let b = 10;
Nov 29 19:59:01.224 INFO [stderr]    |       ^ help: consider using `_b` instead
Nov 29 19:59:01.224 INFO [stderr] 
Nov 29 19:59:01.224 INFO [stderr] warning: variant is never constructed: `None`
Nov 29 19:59:01.224 INFO [stderr]   --> src/main.rs:49:3
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr] 49 |   None
Nov 29 19:59:01.224 INFO [stderr]    |   ^^^^
Nov 29 19:59:01.224 INFO [stderr]    |
Nov 29 19:59:01.224 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 19:59:01.224 INFO [stderr] 
Nov 29 19:59:01.224 INFO [stderr] warning: enum is never used: `Result`
Nov 29 19:59:01.225 INFO [stderr]   --> src/main.rs:53:1
Nov 29 19:59:01.225 INFO [stderr]    |
Nov 29 19:59:01.225 INFO [stderr] 53 | enum Result<T, E> {
Nov 29 19:59:01.225 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Nov 29 19:59:01.225 INFO [stderr] 
Nov 29 19:59:01.436 INFO [stderr] warning: unused variable: `x`
Nov 29 19:59:01.436 INFO [stderr]   --> src/main.rs:60:7
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr] 60 |   let x: Option<i32> = Option::Some(5);
Nov 29 19:59:01.436 INFO [stderr]    |       ^ help: consider using `_x` instead
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 19:59:01.436 INFO [stderr] 
Nov 29 19:59:01.436 INFO [stderr] warning: unused variable: `q`
Nov 29 19:59:01.436 INFO [stderr]   --> src/main.rs:62:7
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr] 62 |   let q: Option<f64> = Option::Some(5f64);
Nov 29 19:59:01.436 INFO [stderr]    |       ^ help: consider using `_q` instead
Nov 29 19:59:01.436 INFO [stderr] 
Nov 29 19:59:01.436 INFO [stderr] warning: unused variable: `b`
Nov 29 19:59:01.436 INFO [stderr]   --> src/main.rs:71:7
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr] 71 |   let b = 10;
Nov 29 19:59:01.436 INFO [stderr]    |       ^ help: consider using `_b` instead
Nov 29 19:59:01.436 INFO [stderr] 
Nov 29 19:59:01.436 INFO [stderr] warning: variant is never constructed: `None`
Nov 29 19:59:01.436 INFO [stderr]   --> src/main.rs:49:3
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr] 49 |   None
Nov 29 19:59:01.436 INFO [stderr]    |   ^^^^
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 19:59:01.436 INFO [stderr] 
Nov 29 19:59:01.436 INFO [stderr] warning: enum is never used: `Result`
Nov 29 19:59:01.436 INFO [stderr]   --> src/main.rs:53:1
Nov 29 19:59:01.436 INFO [stderr]    |
Nov 29 19:59:01.436 INFO [stderr] 53 | enum Result<T, E> {
Nov 29 19:59:01.436 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Nov 29 19:59:01.436 INFO [stderr] 
Nov 29 19:59:01.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Nov 29 19:59:01.452 INFO [stderr] su: No module specific data is present
Nov 29 19:59:01.862 INFO running `"docker" "inspect" "dbfb471486e0515ef2a6434a92f411716ef991b0e5fc79d592c328b20bcf1ab6"`
Nov 29 19:59:01.979 INFO running `"docker" "rm" "-f" "dbfb471486e0515ef2a6434a92f411716ef991b0e5fc79d592c328b20bcf1ab6"`
Nov 29 19:59:02.170 INFO [stdout] dbfb471486e0515ef2a6434a92f411716ef991b0e5fc79d592c328b20bcf1ab6