Oct 12 22:17:23.031 INFO checking dyashkir/rust_hello against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 22:17:23.033 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12 22:17:23.406 INFO blam! ce79fe72915a5361f64ffa72a951c91b83691a86de9752fee5169fd4c66fc74f
Oct 12 22:17:23.408 INFO running `"docker" "start" "-a" "ce79fe72915a5361f64ffa72a951c91b83691a86de9752fee5169fd4c66fc74f"`
Oct 12 22:17:24.687 INFO kablam! usermod: no changes
Oct 12 22:17:24.816 INFO kablam!     Checking csv v0.15.0
Oct 12 22:17:25.870 INFO kablam!     Checking hello_world v0.1.0 (/source)
Oct 12 22:17:26.616 INFO kablam! warning: unused import: `std::io`
Oct 12 22:17:26.616 INFO kablam!  --> src/main.rs:9:5
Oct 12 22:17:26.616 INFO kablam!   |
Oct 12 22:17:26.616 INFO kablam! 9 | use std::io;
Oct 12 22:17:26.616 INFO kablam!   |     ^^^^^^^
Oct 12 22:17:26.616 INFO kablam!   |
Oct 12 22:17:26.616 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 22:17:26.616 INFO kablam! 
Oct 12 22:17:26.616 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 12 22:17:26.616 INFO kablam!   --> src/main.rs:10:5
Oct 12 22:17:26.616 INFO kablam!    |
Oct 12 22:17:26.616 INFO kablam! 10 | use std::io::prelude::*;
Oct 12 22:17:26.616 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 12 22:17:26.616 INFO kablam! 
Oct 12 22:17:26.616 INFO kablam! warning: unused import: `std::fs::File`
Oct 12 22:17:26.616 INFO kablam!   --> src/main.rs:11:5
Oct 12 22:17:26.616 INFO kablam!    |
Oct 12 22:17:26.616 INFO kablam! 11 | use std::fs::File;
Oct 12 22:17:26.616 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 22:17:26.616 INFO kablam! 
Oct 12 22:17:26.668 INFO kablam! warning: variable `v` is assigned to, but never used
Oct 12 22:17:26.668 INFO kablam!   --> src/main.rs:49:17
Oct 12 22:17:26.668 INFO kablam!    |
Oct 12 22:17:26.668 INFO kablam! 49 |         let mut v = vec![0.0; 1000];
Oct 12 22:17:26.669 INFO kablam!    |                 ^
Oct 12 22:17:26.669 INFO kablam!    |
Oct 12 22:17:26.669 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 22:17:26.669 INFO kablam!    = note: consider using `_v` instead
Oct 12 22:17:26.669 INFO kablam! 
Oct 12 22:17:26.669 INFO kablam! warning: value assigned to `v` is never read
Oct 12 22:17:26.669 INFO kablam!   --> src/main.rs:50:9
Oct 12 22:17:26.669 INFO kablam!    |
Oct 12 22:17:26.669 INFO kablam! 50 |         v = record.unwrap();
Oct 12 22:17:26.669 INFO kablam!    |         ^
Oct 12 22:17:26.669 INFO kablam!    |
Oct 12 22:17:26.669 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 22:17:26.669 INFO kablam! 
Oct 12 22:17:26.728 INFO kablam! warning: unused import: `std::io`
Oct 12 22:17:26.728 INFO kablam!  --> src/main.rs:9:5
Oct 12 22:17:26.728 INFO kablam!   |
Oct 12 22:17:26.728 INFO kablam! 9 | use std::io;
Oct 12 22:17:26.728 INFO kablam!   |     ^^^^^^^
Oct 12 22:17:26.728 INFO kablam!   |
Oct 12 22:17:26.728 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 22:17:26.728 INFO kablam! 
Oct 12 22:17:26.728 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 12 22:17:26.728 INFO kablam!   --> src/main.rs:10:5
Oct 12 22:17:26.728 INFO kablam!    |
Oct 12 22:17:26.728 INFO kablam! 10 | use std::io::prelude::*;
Oct 12 22:17:26.728 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 12 22:17:26.729 INFO kablam! 
Oct 12 22:17:26.729 INFO kablam! warning: unused import: `std::fs::File`
Oct 12 22:17:26.729 INFO kablam!   --> src/main.rs:11:5
Oct 12 22:17:26.729 INFO kablam!    |
Oct 12 22:17:26.729 INFO kablam! 11 | use std::fs::File;
Oct 12 22:17:26.729 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 22:17:26.729 INFO kablam! 
Oct 12 22:17:26.768 INFO kablam! warning: variable `v` is assigned to, but never used
Oct 12 22:17:26.768 INFO kablam!   --> src/main.rs:49:17
Oct 12 22:17:26.769 INFO kablam!    |
Oct 12 22:17:26.769 INFO kablam! 49 |         let mut v = vec![0.0; 1000];
Oct 12 22:17:26.769 INFO kablam!    |                 ^
Oct 12 22:17:26.770 INFO kablam!    |
Oct 12 22:17:26.770 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 22:17:26.770 INFO kablam!    = note: consider using `_v` instead
Oct 12 22:17:26.770 INFO kablam! 
Oct 12 22:17:26.771 INFO kablam! warning: value assigned to `v` is never read
Oct 12 22:17:26.771 INFO kablam!   --> src/main.rs:50:9
Oct 12 22:17:26.771 INFO kablam!    |
Oct 12 22:17:26.771 INFO kablam! 50 |         v = record.unwrap();
Oct 12 22:17:26.772 INFO kablam!    |         ^
Oct 12 22:17:26.772 INFO kablam!    |
Oct 12 22:17:26.772 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 22:17:26.773 INFO kablam! 
Oct 12 22:17:26.813 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
Oct 12 22:17:26.824 INFO kablam! su: No module specific data is present
Oct 12 22:17:27.983 INFO running `"docker" "rm" "-f" "ce79fe72915a5361f64ffa72a951c91b83691a86de9752fee5169fd4c66fc74f"`
Oct 12 22:17:28.396 INFO blam! ce79fe72915a5361f64ffa72a951c91b83691a86de9752fee5169fd4c66fc74f