Dec 06 12:27:29.497 INFO testing KuabeM/working-time-calculator against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 12:27:29.497 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 12:27:29.708 INFO [stdout] 4aafa54a39f3a16c020a8539da6890b7093c86e37fb5d241130ed83dc158d0fc
Dec 06 12:27:29.713 INFO running `"docker" "start" "-a" "4aafa54a39f3a16c020a8539da6890b7093c86e37fb5d241130ed83dc158d0fc"`
Dec 06 12:27:30.118 INFO [stderr] usermod: no changes
Dec 06 12:27:30.166 INFO [stderr]    Compiling working-time-calc v0.1.0 (/source)
Dec 06 12:27:30.528 INFO [stderr] warning: value assigned to `content` is never read
Dec 06 12:27:30.528 INFO [stderr]    --> src/main.rs:117:13
Dec 06 12:27:30.528 INFO [stderr]     |
Dec 06 12:27:30.528 INFO [stderr] 117 |     let mut content = String::new();
Dec 06 12:27:30.528 INFO [stderr]     |             ^^^^^^^
Dec 06 12:27:30.528 INFO [stderr]     |
Dec 06 12:27:30.528 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 06 12:27:30.528 INFO [stderr] 
Dec 06 12:27:30.543 INFO [stderr] warning: variable does not need to be mutable
Dec 06 12:27:30.543 INFO [stderr]    --> src/main.rs:108:9
Dec 06 12:27:30.543 INFO [stderr]     |
Dec 06 12:27:30.543 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Dec 06 12:27:30.543 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 06 12:27:30.543 INFO [stderr]     |         |
Dec 06 12:27:30.543 INFO [stderr]     |         help: remove this `mut`
Dec 06 12:27:30.543 INFO [stderr]     |
Dec 06 12:27:30.543 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 12:27:30.543 INFO [stderr] 
Dec 06 12:27:31.120 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 06 12:27:31.124 INFO [stderr] su: No module specific data is present
Dec 06 12:27:31.392 INFO running `"docker" "inspect" "4aafa54a39f3a16c020a8539da6890b7093c86e37fb5d241130ed83dc158d0fc"`
Dec 06 12:27:31.448 INFO running `"docker" "rm" "-f" "4aafa54a39f3a16c020a8539da6890b7093c86e37fb5d241130ed83dc158d0fc"`
Dec 06 12:27:31.522 INFO [stdout] 4aafa54a39f3a16c020a8539da6890b7093c86e37fb5d241130ed83dc158d0fc
Dec 06 12:27:31.530 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 12:27:31.667 INFO [stdout] a5e363e0460ee91be044ca1ddd84f12ad5bcdf9dc1354da272e31f798dc6340e
Dec 06 12:27:31.669 INFO running `"docker" "start" "-a" "a5e363e0460ee91be044ca1ddd84f12ad5bcdf9dc1354da272e31f798dc6340e"`
Dec 06 12:27:32.045 INFO [stderr] usermod: no changes
Dec 06 12:27:32.081 INFO [stderr]    Compiling working-time-calc v0.1.0 (/source)
Dec 06 12:27:32.401 INFO [stderr] warning: value assigned to `content` is never read
Dec 06 12:27:32.401 INFO [stderr]    --> src/main.rs:117:13
Dec 06 12:27:32.401 INFO [stderr]     |
Dec 06 12:27:32.401 INFO [stderr] 117 |     let mut content = String::new();
Dec 06 12:27:32.401 INFO [stderr]     |             ^^^^^^^
Dec 06 12:27:32.401 INFO [stderr]     |
Dec 06 12:27:32.401 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 06 12:27:32.401 INFO [stderr] 
Dec 06 12:27:32.421 INFO [stderr] warning: variable does not need to be mutable
Dec 06 12:27:32.421 INFO [stderr]    --> src/main.rs:108:9
Dec 06 12:27:32.421 INFO [stderr]     |
Dec 06 12:27:32.421 INFO [stderr] 108 |     let mut content_opt = match read_file_to_string( &file_name) {
Dec 06 12:27:32.421 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 06 12:27:32.421 INFO [stderr]     |         |
Dec 06 12:27:32.421 INFO [stderr]     |         help: remove this `mut`
Dec 06 12:27:32.421 INFO [stderr]     |
Dec 06 12:27:32.421 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 12:27:32.421 INFO [stderr] 
Dec 06 12:27:32.648 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 06 12:27:32.651 INFO [stderr] su: No module specific data is present
Dec 06 12:27:32.957 INFO running `"docker" "inspect" "a5e363e0460ee91be044ca1ddd84f12ad5bcdf9dc1354da272e31f798dc6340e"`
Dec 06 12:27:33.023 INFO running `"docker" "rm" "-f" "a5e363e0460ee91be044ca1ddd84f12ad5bcdf9dc1354da272e31f798dc6340e"`
Dec 06 12:27:33.101 INFO [stdout] a5e363e0460ee91be044ca1ddd84f12ad5bcdf9dc1354da272e31f798dc6340e
Dec 06 12:27:33.107 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 06 12:27:33.387 INFO [stdout] 4a3152cd6e17f8c146b1366f2d162e0cfb736980b52e276c3b85797368e30f79
Dec 06 12:27:33.388 INFO running `"docker" "start" "-a" "4a3152cd6e17f8c146b1366f2d162e0cfb736980b52e276c3b85797368e30f79"`
Dec 06 12:27:33.999 INFO [stderr] usermod: no changes
Dec 06 12:27:34.035 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 06 12:27:34.036 INFO [stderr]      Running /target/debug/deps/working_time_calc-f09b8e0ae5a768dd
Dec 06 12:27:34.044 INFO [stdout] 
Dec 06 12:27:34.044 INFO [stdout] running 0 tests
Dec 06 12:27:34.044 INFO [stdout] 
Dec 06 12:27:34.044 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 12:27:34.044 INFO [stdout] 
Dec 06 12:27:34.050 INFO [stderr] su: No module specific data is present
Dec 06 12:27:34.323 INFO running `"docker" "inspect" "4a3152cd6e17f8c146b1366f2d162e0cfb736980b52e276c3b85797368e30f79"`
Dec 06 12:27:34.413 INFO running `"docker" "rm" "-f" "4a3152cd6e17f8c146b1366f2d162e0cfb736980b52e276c3b85797368e30f79"`
Dec 06 12:27:34.495 INFO [stdout] 4a3152cd6e17f8c146b1366f2d162e0cfb736980b52e276c3b85797368e30f79