Dec 12 01:54:56.073 INFO checking KuabeM/working-time-calculator against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 01:54:56.073 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 01:54:56.486 INFO [stdout] e329eac71dee0d714002b29799b45ab50caab22c23e5a470ab51292422ed0e09
Dec 12 01:54:56.489 INFO running `"docker" "start" "-a" "e329eac71dee0d714002b29799b45ab50caab22c23e5a470ab51292422ed0e09"`
Dec 12 01:54:57.924 INFO [stderr] usermod: no changes
Dec 12 01:54:58.048 INFO [stderr]     Checking working-time-calc v0.1.0 (/source)
Dec 12 01:54:59.076 INFO [stderr] warning: value assigned to `content` is never read
Dec 12 01:54:59.076 INFO [stderr]    --> src/main.rs:117:13
Dec 12 01:54:59.076 INFO [stderr]     |
Dec 12 01:54:59.076 INFO [stderr] 117 |     let mut content = String::new();
Dec 12 01:54:59.076 INFO [stderr]     |             ^^^^^^^
Dec 12 01:54:59.076 INFO [stderr]     |
Dec 12 01:54:59.076 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 01:54:59.076 INFO [stderr] 
Dec 12 01:54:59.111 INFO [stderr] warning: variable does not need to be mutable
Dec 12 01:54:59.111 INFO [stderr]    --> src/main.rs:108:9
Dec 12 01:54:59.111 INFO [stderr]     |
Dec 12 01:54:59.111 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Dec 12 01:54:59.111 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 12 01:54:59.111 INFO [stderr]     |         |
Dec 12 01:54:59.111 INFO [stderr]     |         help: remove this `mut`
Dec 12 01:54:59.111 INFO [stderr]     |
Dec 12 01:54:59.111 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 01:54:59.111 INFO [stderr] 
Dec 12 01:54:59.329 INFO [stderr] warning: value assigned to `content` is never read
Dec 12 01:54:59.330 INFO [stderr]    --> src/main.rs:117:13
Dec 12 01:54:59.330 INFO [stderr]     |
Dec 12 01:54:59.330 INFO [stderr] 117 |     let mut content = String::new();
Dec 12 01:54:59.330 INFO [stderr]     |             ^^^^^^^
Dec 12 01:54:59.330 INFO [stderr]     |
Dec 12 01:54:59.330 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 01:54:59.330 INFO [stderr] 
Dec 12 01:54:59.356 INFO [stderr] warning: variable does not need to be mutable
Dec 12 01:54:59.356 INFO [stderr]    --> src/main.rs:108:9
Dec 12 01:54:59.356 INFO [stderr]     |
Dec 12 01:54:59.356 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Dec 12 01:54:59.356 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 12 01:54:59.356 INFO [stderr]     |         |
Dec 12 01:54:59.356 INFO [stderr]     |         help: remove this `mut`
Dec 12 01:54:59.356 INFO [stderr]     |
Dec 12 01:54:59.356 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 01:54:59.356 INFO [stderr] 
Dec 12 01:54:59.408 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 12 01:54:59.412 INFO [stderr] su: No module specific data is present
Dec 12 01:55:00.252 INFO running `"docker" "inspect" "e329eac71dee0d714002b29799b45ab50caab22c23e5a470ab51292422ed0e09"`
Dec 12 01:55:00.572 INFO running `"docker" "rm" "-f" "e329eac71dee0d714002b29799b45ab50caab22c23e5a470ab51292422ed0e09"`
Dec 12 01:55:00.884 INFO [stdout] e329eac71dee0d714002b29799b45ab50caab22c23e5a470ab51292422ed0e09