Oct 12 11:12:24.791 INFO checking vksmgr/read_file against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 11:12:24.793 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 11:12:25.676 INFO blam! f59cf7468b0d598be1cbc82bb6dc23f35cb733a628935b9c92378de0c0cf87b8
Oct 12 11:12:25.688 INFO running `"docker" "start" "-a" "f59cf7468b0d598be1cbc82bb6dc23f35cb733a628935b9c92378de0c0cf87b8"`
Oct 12 11:12:26.823 INFO kablam! usermod: no changes
Oct 12 11:12:26.880 INFO kablam!     Checking os v0.1.0 (/source)
Oct 12 11:12:27.130 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 11:12:27.130 INFO kablam!  --> src/main.rs:5:5
Oct 12 11:12:27.130 INFO kablam!   |
Oct 12 11:12:27.130 INFO kablam! 5 |     read_all_lines("test.txt");
Oct 12 11:12:27.130 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:12:27.144 INFO kablam!   |
Oct 12 11:12:27.144 INFO kablam!   = note: #[warn(unused_must_use)] on by default
Oct 12 11:12:27.144 INFO kablam!   = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 11:12:27.144 INFO kablam! 
Oct 12 11:12:27.248 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 11:12:27.248 INFO kablam!  --> src/main.rs:5:5
Oct 12 11:12:27.248 INFO kablam!   |
Oct 12 11:12:27.248 INFO kablam! 5 |     read_all_lines("test.txt");
Oct 12 11:12:27.248 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 11:12:27.248 INFO kablam!   |
Oct 12 11:12:27.248 INFO kablam!   = note: #[warn(unused_must_use)] on by default
Oct 12 11:12:27.248 INFO kablam!   = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 11:12:27.248 INFO kablam! 
Oct 12 11:12:27.293 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Oct 12 11:12:27.293 INFO kablam! su: No module specific data is present
Oct 12 11:12:28.544 INFO running `"docker" "rm" "-f" "f59cf7468b0d598be1cbc82bb6dc23f35cb733a628935b9c92378de0c0cf87b8"`
Oct 12 11:12:28.808 INFO blam! f59cf7468b0d598be1cbc82bb6dc23f35cb733a628935b9c92378de0c0cf87b8