Oct 12 21:18:34.015 INFO checking garretttaco/rename against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 21:18:34.015 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/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 21:18:34.426 INFO blam! 69da91f3aaf2e150fad7ce2f3d6373dfd1cbb06bce27df0edb62129939263034
Oct 12 21:18:34.436 INFO running `"docker" "start" "-a" "69da91f3aaf2e150fad7ce2f3d6373dfd1cbb06bce27df0edb62129939263034"`
Oct 12 21:18:35.774 INFO kablam! usermod: no changes
Oct 12 21:18:35.921 INFO kablam!     Checking clap v2.29.0
Oct 12 21:18:44.883 INFO kablam!     Checking rename v0.1.0 (/source)
Oct 12 21:18:46.048 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 21:18:46.048 INFO kablam!   --> src/main.rs:20:9
Oct 12 21:18:46.048 INFO kablam!    |
Oct 12 21:18:46.048 INFO kablam! 20 |         fs::rename(&file_name, &updated_name);
Oct 12 21:18:46.048 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 21:18:46.048 INFO kablam!    |
Oct 12 21:18:46.048 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 21:18:46.048 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 21:18:46.048 INFO kablam! 
Oct 12 21:18:46.136 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 21:18:46.136 INFO kablam!   --> src/main.rs:20:9
Oct 12 21:18:46.136 INFO kablam!    |
Oct 12 21:18:46.136 INFO kablam! 20 |         fs::rename(&file_name, &updated_name);
Oct 12 21:18:46.136 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 21:18:46.136 INFO kablam!    |
Oct 12 21:18:46.136 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 21:18:46.136 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 21:18:46.136 INFO kablam! 
Oct 12 21:18:46.160 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.35s
Oct 12 21:18:46.160 INFO kablam! su: No module specific data is present
Oct 12 21:18:46.804 INFO running `"docker" "rm" "-f" "69da91f3aaf2e150fad7ce2f3d6373dfd1cbb06bce27df0edb62129939263034"`
Oct 12 21:18:47.032 INFO blam! 69da91f3aaf2e150fad7ce2f3d6373dfd1cbb06bce27df0edb62129939263034