Oct 12 22:39:52.761 INFO checking dgryski/rust-bf against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 22:39:52.761 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/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 22:39:53.160 INFO blam! 68479c8ba94a62c20bc89eb60a6538aca786808f99943daec545cd953549742e
Oct 12 22:39:53.162 INFO running `"docker" "start" "-a" "68479c8ba94a62c20bc89eb60a6538aca786808f99943daec545cd953549742e"`
Oct 12 22:39:54.888 INFO kablam! usermod: no changes
Oct 12 22:39:54.976 INFO kablam!     Checking bf v0.1.0 (/source)
Oct 12 22:39:55.900 INFO kablam! warning: unused variable: `arg1`
Oct 12 22:39:55.901 INFO kablam!   --> src/main.rs:17:13
Oct 12 22:39:55.901 INFO kablam!    |
Oct 12 22:39:55.902 INFO kablam! 17 |     let ref arg1 = args[1];
Oct 12 22:39:55.902 INFO kablam!    |             ^^^^ help: consider using `_arg1` instead
Oct 12 22:39:55.903 INFO kablam!    |
Oct 12 22:39:55.904 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 22:39:55.904 INFO kablam! 
Oct 12 22:39:55.950 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 22:39:55.950 INFO kablam!   --> src/main.rs:31:9
Oct 12 22:39:55.951 INFO kablam!    |
Oct 12 22:39:55.952 INFO kablam! 31 |         io::stderr().write(err.as_bytes());
Oct 12 22:39:55.952 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 22:39:55.952 INFO kablam!    |
Oct 12 22:39:55.952 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 22:39:55.952 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 22:39:55.952 INFO kablam! 
Oct 12 22:39:56.135 INFO kablam! warning: unused variable: `arg1`
Oct 12 22:39:56.135 INFO kablam!   --> src/main.rs:17:13
Oct 12 22:39:56.135 INFO kablam!    |
Oct 12 22:39:56.135 INFO kablam! 17 |     let ref arg1 = args[1];
Oct 12 22:39:56.135 INFO kablam!    |             ^^^^ help: consider using `_arg1` instead
Oct 12 22:39:56.135 INFO kablam!    |
Oct 12 22:39:56.135 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 22:39:56.135 INFO kablam! 
Oct 12 22:39:56.183 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 22:39:56.183 INFO kablam!   --> src/main.rs:31:9
Oct 12 22:39:56.183 INFO kablam!    |
Oct 12 22:39:56.184 INFO kablam! 31 |         io::stderr().write(err.as_bytes());
Oct 12 22:39:56.184 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 22:39:56.184 INFO kablam!    |
Oct 12 22:39:56.184 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 22:39:56.185 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 22:39:56.185 INFO kablam! 
Oct 12 22:39:56.241 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
Oct 12 22:39:56.244 INFO kablam! su: No module specific data is present
Oct 12 22:39:57.493 INFO running `"docker" "rm" "-f" "68479c8ba94a62c20bc89eb60a6538aca786808f99943daec545cd953549742e"`
Oct 12 22:39:57.812 INFO blam! 68479c8ba94a62c20bc89eb60a6538aca786808f99943daec545cd953549742e