Dec 04 14:53:19.616 INFO checking luki/2do against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:53:19.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 14:53:19.928 INFO [stdout] d70abbc1fe0a017e6997a89cdb173f4ef45911c09244dcfcbba2b970884a8fd9
Dec 04 14:53:19.934 INFO running `"docker" "start" "-a" "d70abbc1fe0a017e6997a89cdb173f4ef45911c09244dcfcbba2b970884a8fd9"`
Dec 04 14:53:20.407 INFO [stderr] usermod: no changes
Dec 04 14:53:20.507 INFO [stderr]     Checking chrono v0.2.25
Dec 04 14:53:22.314 INFO [stderr]     Checking todo v0.1.0 (/source)
Dec 04 14:53:22.782 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.783 INFO [stderr]   --> src/main.rs:43:13
Dec 04 14:53:22.783 INFO [stderr]    |
Dec 04 14:53:22.783 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 04 14:53:22.783 INFO [stderr]    |             ----^^^^^^^
Dec 04 14:53:22.783 INFO [stderr]    |             |
Dec 04 14:53:22.783 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:53:22.783 INFO [stderr]    |
Dec 04 14:53:22.783 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:53:22.783 INFO [stderr] 
Dec 04 14:53:22.783 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.783 INFO [stderr]   --> src/main.rs:44:13
Dec 04 14:53:22.783 INFO [stderr]    |
Dec 04 14:53:22.783 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 04 14:53:22.783 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 04 14:53:22.783 INFO [stderr]    |             |
Dec 04 14:53:22.783 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:53:22.783 INFO [stderr] 
Dec 04 14:53:22.783 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.783 INFO [stderr]   --> src/main.rs:81:9
Dec 04 14:53:22.783 INFO [stderr]    |
Dec 04 14:53:22.783 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 04 14:53:22.783 INFO [stderr]    |         ----^^^^
Dec 04 14:53:22.783 INFO [stderr]    |         |
Dec 04 14:53:22.783 INFO [stderr]    |         help: remove this `mut`
Dec 04 14:53:22.783 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: method is never used: `save_as_file`
Dec 04 14:53:22.811 INFO [stderr]   --> src/main.rs:32:5
Dec 04 14:53:22.811 INFO [stderr]    |
Dec 04 14:53:22.811 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 04 14:53:22.811 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr]    |
Dec 04 14:53:22.811 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: function is never used: `create_file`
Dec 04 14:53:22.811 INFO [stderr]   --> src/main.rs:80:1
Dec 04 14:53:22.811 INFO [stderr]    |
Dec 04 14:53:22.811 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 04 14:53:22.811 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: function is never used: `write_to_file`
Dec 04 14:53:22.811 INFO [stderr]    --> src/main.rs:105:1
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 04 14:53:22.811 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: function is never used: `override_file`
Dec 04 14:53:22.811 INFO [stderr]    --> src/main.rs:110:1
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 04 14:53:22.811 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:53:22.811 INFO [stderr]    --> src/main.rs:107:5
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 04 14:53:22.811 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:53:22.811 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.811 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:53:22.811 INFO [stderr]    --> src/main.rs:111:5
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 04 14:53:22.811 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.811 INFO [stderr]     |
Dec 04 14:53:22.811 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:53:22.811 INFO [stderr] 
Dec 04 14:53:22.978 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.978 INFO [stderr]   --> src/main.rs:43:13
Dec 04 14:53:22.978 INFO [stderr]    |
Dec 04 14:53:22.978 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 04 14:53:22.978 INFO [stderr]    |             ----^^^^^^^
Dec 04 14:53:22.978 INFO [stderr]    |             |
Dec 04 14:53:22.978 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:53:22.978 INFO [stderr]    |
Dec 04 14:53:22.978 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:53:22.978 INFO [stderr] 
Dec 04 14:53:22.978 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.978 INFO [stderr]   --> src/main.rs:44:13
Dec 04 14:53:22.978 INFO [stderr]    |
Dec 04 14:53:22.978 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 04 14:53:22.978 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 04 14:53:22.978 INFO [stderr]    |             |
Dec 04 14:53:22.978 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:53:22.978 INFO [stderr] 
Dec 04 14:53:22.980 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:53:22.980 INFO [stderr]   --> src/main.rs:81:9
Dec 04 14:53:22.980 INFO [stderr]    |
Dec 04 14:53:22.980 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 04 14:53:22.980 INFO [stderr]    |         ----^^^^
Dec 04 14:53:22.980 INFO [stderr]    |         |
Dec 04 14:53:22.980 INFO [stderr]    |         help: remove this `mut`
Dec 04 14:53:22.980 INFO [stderr] 
Dec 04 14:53:22.985 INFO [stderr] warning: method is never used: `save_as_file`
Dec 04 14:53:22.985 INFO [stderr]   --> src/main.rs:32:5
Dec 04 14:53:22.985 INFO [stderr]    |
Dec 04 14:53:22.985 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 04 14:53:22.985 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.985 INFO [stderr]    |
Dec 04 14:53:22.985 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 14:53:22.985 INFO [stderr] 
Dec 04 14:53:22.985 INFO [stderr] warning: function is never used: `create_file`
Dec 04 14:53:22.985 INFO [stderr]   --> src/main.rs:80:1
Dec 04 14:53:22.985 INFO [stderr]    |
Dec 04 14:53:22.985 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 04 14:53:22.985 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.985 INFO [stderr] 
Dec 04 14:53:22.985 INFO [stderr] warning: function is never used: `write_to_file`
Dec 04 14:53:22.985 INFO [stderr]    --> src/main.rs:105:1
Dec 04 14:53:22.985 INFO [stderr]     |
Dec 04 14:53:22.985 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 04 14:53:22.985 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.985 INFO [stderr] 
Dec 04 14:53:22.985 INFO [stderr] warning: function is never used: `override_file`
Dec 04 14:53:22.985 INFO [stderr]    --> src/main.rs:110:1
Dec 04 14:53:22.985 INFO [stderr]     |
Dec 04 14:53:22.985 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 04 14:53:22.985 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.985 INFO [stderr] 
Dec 04 14:53:22.995 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:53:22.995 INFO [stderr]    --> src/main.rs:107:5
Dec 04 14:53:22.995 INFO [stderr]     |
Dec 04 14:53:22.995 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 04 14:53:22.995 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.995 INFO [stderr]     |
Dec 04 14:53:22.995 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:53:22.995 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:53:22.995 INFO [stderr] 
Dec 04 14:53:22.995 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:53:22.995 INFO [stderr]    --> src/main.rs:111:5
Dec 04 14:53:22.995 INFO [stderr]     |
Dec 04 14:53:22.995 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 04 14:53:22.995 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:53:22.995 INFO [stderr]     |
Dec 04 14:53:22.995 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:53:22.995 INFO [stderr] 
Dec 04 14:53:23.036 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
Dec 04 14:53:23.039 INFO [stderr] su: No module specific data is present
Dec 04 14:53:23.544 INFO running `"docker" "inspect" "d70abbc1fe0a017e6997a89cdb173f4ef45911c09244dcfcbba2b970884a8fd9"`
Dec 04 14:53:23.788 INFO running `"docker" "rm" "-f" "d70abbc1fe0a017e6997a89cdb173f4ef45911c09244dcfcbba2b970884a8fd9"`
Dec 04 14:53:23.982 INFO [stdout] d70abbc1fe0a017e6997a89cdb173f4ef45911c09244dcfcbba2b970884a8fd9