Nov 02 20:57:32.461 INFO checking KuabeM/working-time-calculator against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 20:57:32.461 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-6/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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"`
Nov 02 20:57:32.979 INFO blam! c149042b002b9aefa035cacc08dc02e15e7384ef277a657ae653ac8e57b7db68
Nov 02 20:57:32.983 INFO running `"docker" "start" "-a" "c149042b002b9aefa035cacc08dc02e15e7384ef277a657ae653ac8e57b7db68"`
Nov 02 20:57:34.480 INFO kablam! usermod: no changes
Nov 02 20:57:34.528 INFO kablam!     Checking working-time-calc v0.1.0 (/source)
Nov 02 20:57:35.564 INFO kablam! warning: value assigned to `content` is never read
Nov 02 20:57:35.564 INFO kablam!    --> src/main.rs:117:13
Nov 02 20:57:35.564 INFO kablam!     |
Nov 02 20:57:35.564 INFO kablam! 117 |     let mut content = String::new();
Nov 02 20:57:35.565 INFO kablam!     |             ^^^^^^^
Nov 02 20:57:35.565 INFO kablam!     |
Nov 02 20:57:35.565 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Nov 02 20:57:35.565 INFO kablam! 
Nov 02 20:57:35.596 INFO kablam! warning: variable does not need to be mutable
Nov 02 20:57:35.596 INFO kablam!    --> src/main.rs:108:9
Nov 02 20:57:35.596 INFO kablam!     |
Nov 02 20:57:35.596 INFO kablam! 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Nov 02 20:57:35.596 INFO kablam!     |         ----^^^^^^^^^^^
Nov 02 20:57:35.596 INFO kablam!     |         |
Nov 02 20:57:35.596 INFO kablam!     |         help: remove this `mut`
Nov 02 20:57:35.596 INFO kablam!     |
Nov 02 20:57:35.597 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 20:57:35.597 INFO kablam! 
Nov 02 20:57:35.648 INFO kablam! warning: value assigned to `content` is never read
Nov 02 20:57:35.648 INFO kablam!    --> src/main.rs:117:13
Nov 02 20:57:35.648 INFO kablam!     |
Nov 02 20:57:35.649 INFO kablam! 117 |     let mut content = String::new();
Nov 02 20:57:35.649 INFO kablam!     |             ^^^^^^^
Nov 02 20:57:35.649 INFO kablam!     |
Nov 02 20:57:35.649 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Nov 02 20:57:35.649 INFO kablam! 
Nov 02 20:57:35.681 INFO kablam! warning: variable does not need to be mutable
Nov 02 20:57:35.681 INFO kablam!    --> src/main.rs:108:9
Nov 02 20:57:35.681 INFO kablam!     |
Nov 02 20:57:35.684 INFO kablam! 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Nov 02 20:57:35.684 INFO kablam!     |         ----^^^^^^^^^^^
Nov 02 20:57:35.684 INFO kablam!     |         |
Nov 02 20:57:35.684 INFO kablam!     |         help: remove this `mut`
Nov 02 20:57:35.684 INFO kablam!     |
Nov 02 20:57:35.684 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 20:57:35.684 INFO kablam! 
Nov 02 20:57:35.750 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
Nov 02 20:57:35.755 INFO kablam! su: No module specific data is present
Nov 02 20:57:36.628 INFO running `"docker" "rm" "-f" "c149042b002b9aefa035cacc08dc02e15e7384ef277a657ae653ac8e57b7db68"`
Nov 02 20:57:36.836 INFO blam! c149042b002b9aefa035cacc08dc02e15e7384ef277a657ae653ac8e57b7db68