Nov 30 10:09:25.919 INFO checking KuabeM/working-time-calculator against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 10:09:25.919 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 10:09:26.284 INFO [stdout] ade5b594caca8d2a0b00208077165ab82484a547d3cb1ffce9c5e0c364e4344a
Nov 30 10:09:26.286 INFO running `"docker" "start" "-a" "ade5b594caca8d2a0b00208077165ab82484a547d3cb1ffce9c5e0c364e4344a"`
Nov 30 10:09:27.785 INFO [stderr] usermod: no changes
Nov 30 10:09:27.884 INFO [stderr]     Checking working-time-calc v0.1.0 (/source)
Nov 30 10:09:28.764 INFO [stderr] warning: value assigned to `content` is never read
Nov 30 10:09:28.764 INFO [stderr]    --> src/main.rs:117:13
Nov 30 10:09:28.764 INFO [stderr]     |
Nov 30 10:09:28.764 INFO [stderr] 117 |     let mut content = String::new();
Nov 30 10:09:28.764 INFO [stderr]     |             ^^^^^^^
Nov 30 10:09:28.764 INFO [stderr]     |
Nov 30 10:09:28.764 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 30 10:09:28.764 INFO [stderr] 
Nov 30 10:09:28.812 INFO [stderr] warning: variable does not need to be mutable
Nov 30 10:09:28.812 INFO [stderr]    --> src/main.rs:108:9
Nov 30 10:09:28.812 INFO [stderr]     |
Nov 30 10:09:28.812 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Nov 30 10:09:28.812 INFO [stderr]     |         ----^^^^^^^^^^^
Nov 30 10:09:28.812 INFO [stderr]     |         |
Nov 30 10:09:28.812 INFO [stderr]     |         help: remove this `mut`
Nov 30 10:09:28.812 INFO [stderr]     |
Nov 30 10:09:28.812 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 10:09:28.812 INFO [stderr] 
Nov 30 10:09:28.899 INFO [stderr] warning: value assigned to `content` is never read
Nov 30 10:09:28.899 INFO [stderr]    --> src/main.rs:117:13
Nov 30 10:09:28.899 INFO [stderr]     |
Nov 30 10:09:28.899 INFO [stderr] 117 |     let mut content = String::new();
Nov 30 10:09:28.899 INFO [stderr]     |             ^^^^^^^
Nov 30 10:09:28.899 INFO [stderr]     |
Nov 30 10:09:28.899 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 30 10:09:28.899 INFO [stderr] 
Nov 30 10:09:28.917 INFO [stderr] warning: variable does not need to be mutable
Nov 30 10:09:28.917 INFO [stderr]    --> src/main.rs:108:9
Nov 30 10:09:28.917 INFO [stderr]     |
Nov 30 10:09:28.917 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Nov 30 10:09:28.917 INFO [stderr]     |         ----^^^^^^^^^^^
Nov 30 10:09:28.917 INFO [stderr]     |         |
Nov 30 10:09:28.917 INFO [stderr]     |         help: remove this `mut`
Nov 30 10:09:28.917 INFO [stderr]     |
Nov 30 10:09:28.917 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 10:09:28.917 INFO [stderr] 
Nov 30 10:09:28.979 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Nov 30 10:09:28.982 INFO [stderr] su: No module specific data is present
Nov 30 10:09:29.724 INFO running `"docker" "inspect" "ade5b594caca8d2a0b00208077165ab82484a547d3cb1ffce9c5e0c364e4344a"`
Nov 30 10:09:30.026 INFO running `"docker" "rm" "-f" "ade5b594caca8d2a0b00208077165ab82484a547d3cb1ffce9c5e0c364e4344a"`
Nov 30 10:09:30.347 INFO [stdout] ade5b594caca8d2a0b00208077165ab82484a547d3cb1ffce9c5e0c364e4344a