Oct 21 14:24:19.182 INFO checking robbystk/rust-by-the-book against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 14:24:19.182 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-5/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 14:24:19.347 INFO blam! 7ca47e3cb6738ca4fefcef279da437f27e3473331f0d374f291d5f5231679daa
Oct 21 14:24:19.348 INFO running `"docker" "start" "-a" "7ca47e3cb6738ca4fefcef279da437f27e3473331f0d374f291d5f5231679daa"`
Oct 21 14:24:19.801 INFO kablam! usermod: no changes
Oct 21 14:24:19.832 INFO kablam!     Checking errors v0.1.0 (/source)
Oct 21 14:24:20.036 INFO kablam! warning: unused variable: `f`
Oct 21 14:24:20.036 INFO kablam!  --> src/main.rs:4:9
Oct 21 14:24:20.036 INFO kablam!   |
Oct 21 14:24:20.036 INFO kablam! 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Oct 21 14:24:20.036 INFO kablam!   |         ^ help: consider using `_f` instead
Oct 21 14:24:20.036 INFO kablam!   |
Oct 21 14:24:20.036 INFO kablam!   = note: #[warn(unused_variables)] on by default
Oct 21 14:24:20.036 INFO kablam! 
Oct 21 14:24:20.083 INFO kablam! warning: unused variable: `f`
Oct 21 14:24:20.083 INFO kablam!  --> src/main.rs:4:9
Oct 21 14:24:20.083 INFO kablam!   |
Oct 21 14:24:20.083 INFO kablam! 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Oct 21 14:24:20.083 INFO kablam!   |         ^ help: consider using `_f` instead
Oct 21 14:24:20.083 INFO kablam!   |
Oct 21 14:24:20.083 INFO kablam!   = note: #[warn(unused_variables)] on by default
Oct 21 14:24:20.083 INFO kablam! 
Oct 21 14:24:20.091 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Oct 21 14:24:20.093 INFO kablam! su: No module specific data is present
Oct 21 14:24:20.366 INFO running `"docker" "rm" "-f" "7ca47e3cb6738ca4fefcef279da437f27e3473331f0d374f291d5f5231679daa"`
Oct 21 14:24:20.494 INFO blam! 7ca47e3cb6738ca4fefcef279da437f27e3473331f0d374f291d5f5231679daa