Oct 13 03:56:25.986 INFO checking KuabeM/working-time-calculator against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 03:56:25.986 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 13 03:56:26.602 INFO blam! ec8d2e3fc2c230a1da891f378607397771d02129489e40148d9f6e6921c61e26
Oct 13 03:56:26.616 INFO running `"docker" "start" "-a" "ec8d2e3fc2c230a1da891f378607397771d02129489e40148d9f6e6921c61e26"`
Oct 13 03:56:28.086 INFO kablam! usermod: no changes
Oct 13 03:56:28.192 INFO kablam!     Checking working-time-calc v0.1.0 (/source)
Oct 13 03:56:29.289 INFO kablam! warning: value assigned to `content` is never read
Oct 13 03:56:29.289 INFO kablam!    --> src/main.rs:117:13
Oct 13 03:56:29.289 INFO kablam!     |
Oct 13 03:56:29.289 INFO kablam! 117 |     let mut content = String::new();
Oct 13 03:56:29.289 INFO kablam!     |             ^^^^^^^
Oct 13 03:56:29.289 INFO kablam!     |
Oct 13 03:56:29.292 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Oct 13 03:56:29.292 INFO kablam! 
Oct 13 03:56:29.307 INFO kablam! warning: variable does not need to be mutable
Oct 13 03:56:29.307 INFO kablam!    --> src/main.rs:108:9
Oct 13 03:56:29.307 INFO kablam!     |
Oct 13 03:56:29.307 INFO kablam! 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Oct 13 03:56:29.307 INFO kablam!     |         ----^^^^^^^^^^^
Oct 13 03:56:29.307 INFO kablam!     |         |
Oct 13 03:56:29.307 INFO kablam!     |         help: remove this `mut`
Oct 13 03:56:29.307 INFO kablam!     |
Oct 13 03:56:29.307 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 03:56:29.307 INFO kablam! 
Oct 13 03:56:29.620 INFO kablam! warning: value assigned to `content` is never read
Oct 13 03:56:29.620 INFO kablam!    --> src/main.rs:117:13
Oct 13 03:56:29.620 INFO kablam!     |
Oct 13 03:56:29.620 INFO kablam! 117 |     let mut content = String::new();
Oct 13 03:56:29.620 INFO kablam!     |             ^^^^^^^
Oct 13 03:56:29.620 INFO kablam!     |
Oct 13 03:56:29.620 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Oct 13 03:56:29.620 INFO kablam! 
Oct 13 03:56:29.632 INFO kablam! warning: variable does not need to be mutable
Oct 13 03:56:29.632 INFO kablam!    --> src/main.rs:108:9
Oct 13 03:56:29.632 INFO kablam!     |
Oct 13 03:56:29.632 INFO kablam! 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Oct 13 03:56:29.632 INFO kablam!     |         ----^^^^^^^^^^^
Oct 13 03:56:29.632 INFO kablam!     |         |
Oct 13 03:56:29.632 INFO kablam!     |         help: remove this `mut`
Oct 13 03:56:29.632 INFO kablam!     |
Oct 13 03:56:29.632 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 03:56:29.632 INFO kablam! 
Oct 13 03:56:29.704 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
Oct 13 03:56:29.704 INFO kablam! su: No module specific data is present
Oct 13 03:56:30.820 INFO running `"docker" "rm" "-f" "ec8d2e3fc2c230a1da891f378607397771d02129489e40148d9f6e6921c61e26"`
Oct 13 03:56:31.184 INFO blam! ec8d2e3fc2c230a1da891f378607397771d02129489e40148d9f6e6921c61e26