Dec 13 12:10:33.511 INFO testing luki/2do against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 12:10:33.511 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:10:33.789 INFO [stdout] 439a4456e4ccbc6ea5f757641ee406fec2a5c6c5cbc3ce4e7edc16e6a38670b4
Dec 13 12:10:33.792 INFO running `"docker" "start" "-a" "439a4456e4ccbc6ea5f757641ee406fec2a5c6c5cbc3ce4e7edc16e6a38670b4"`
Dec 13 12:10:34.708 INFO [stderr] usermod: no changes
Dec 13 12:10:34.820 INFO [stderr]    Compiling todo v0.1.0 (/source)
Dec 13 12:10:35.336 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:35.336 INFO [stderr]   --> src/main.rs:43:13
Dec 13 12:10:35.336 INFO [stderr]    |
Dec 13 12:10:35.336 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 13 12:10:35.336 INFO [stderr]    |             ----^^^^^^^
Dec 13 12:10:35.336 INFO [stderr]    |             |
Dec 13 12:10:35.336 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:35.336 INFO [stderr]    |
Dec 13 12:10:35.336 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 12:10:35.336 INFO [stderr] 
Dec 13 12:10:35.336 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:35.336 INFO [stderr]   --> src/main.rs:44:13
Dec 13 12:10:35.336 INFO [stderr]    |
Dec 13 12:10:35.336 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 13 12:10:35.336 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 13 12:10:35.336 INFO [stderr]    |             |
Dec 13 12:10:35.336 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:35.336 INFO [stderr] 
Dec 13 12:10:35.341 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:35.341 INFO [stderr]   --> src/main.rs:81:9
Dec 13 12:10:35.341 INFO [stderr]    |
Dec 13 12:10:35.341 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 13 12:10:35.341 INFO [stderr]    |         ----^^^^
Dec 13 12:10:35.341 INFO [stderr]    |         |
Dec 13 12:10:35.341 INFO [stderr]    |         help: remove this `mut`
Dec 13 12:10:35.341 INFO [stderr] 
Dec 13 12:10:35.347 INFO [stderr] warning: method is never used: `save_as_file`
Dec 13 12:10:35.347 INFO [stderr]   --> src/main.rs:32:5
Dec 13 12:10:35.347 INFO [stderr]    |
Dec 13 12:10:35.347 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 13 12:10:35.347 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.347 INFO [stderr]    |
Dec 13 12:10:35.347 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 12:10:35.347 INFO [stderr] 
Dec 13 12:10:35.347 INFO [stderr] warning: function is never used: `create_file`
Dec 13 12:10:35.347 INFO [stderr]   --> src/main.rs:80:1
Dec 13 12:10:35.347 INFO [stderr]    |
Dec 13 12:10:35.347 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 13 12:10:35.347 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.347 INFO [stderr] 
Dec 13 12:10:35.347 INFO [stderr] warning: function is never used: `write_to_file`
Dec 13 12:10:35.347 INFO [stderr]    --> src/main.rs:105:1
Dec 13 12:10:35.347 INFO [stderr]     |
Dec 13 12:10:35.347 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 13 12:10:35.347 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.347 INFO [stderr] 
Dec 13 12:10:35.347 INFO [stderr] warning: function is never used: `override_file`
Dec 13 12:10:35.347 INFO [stderr]    --> src/main.rs:110:1
Dec 13 12:10:35.347 INFO [stderr]     |
Dec 13 12:10:35.347 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 13 12:10:35.347 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.347 INFO [stderr] 
Dec 13 12:10:35.355 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:35.355 INFO [stderr]    --> src/main.rs:107:5
Dec 13 12:10:35.355 INFO [stderr]     |
Dec 13 12:10:35.355 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 13 12:10:35.355 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.355 INFO [stderr]     |
Dec 13 12:10:35.355 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 12:10:35.355 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:35.355 INFO [stderr] 
Dec 13 12:10:35.355 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:35.355 INFO [stderr]    --> src/main.rs:111:5
Dec 13 12:10:35.355 INFO [stderr]     |
Dec 13 12:10:35.355 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 13 12:10:35.355 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:35.355 INFO [stderr]     |
Dec 13 12:10:35.355 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:35.355 INFO [stderr] 
Dec 13 12:10:36.119 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
Dec 13 12:10:36.119 INFO [stderr] su: No module specific data is present
Dec 13 12:10:36.675 INFO running `"docker" "inspect" "439a4456e4ccbc6ea5f757641ee406fec2a5c6c5cbc3ce4e7edc16e6a38670b4"`
Dec 13 12:10:36.943 INFO running `"docker" "rm" "-f" "439a4456e4ccbc6ea5f757641ee406fec2a5c6c5cbc3ce4e7edc16e6a38670b4"`
Dec 13 12:10:37.039 INFO [stdout] 439a4456e4ccbc6ea5f757641ee406fec2a5c6c5cbc3ce4e7edc16e6a38670b4
Dec 13 12:10:37.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:10:37.218 INFO [stdout] ffd64faa8e92d700f5199b9513579da249ff06ffc53c57c870bfc2413a0ef3a4
Dec 13 12:10:37.223 INFO running `"docker" "start" "-a" "ffd64faa8e92d700f5199b9513579da249ff06ffc53c57c870bfc2413a0ef3a4"`
Dec 13 12:10:37.736 INFO [stderr] usermod: no changes
Dec 13 12:10:37.791 INFO [stderr]    Compiling todo v0.1.0 (/source)
Dec 13 12:10:38.291 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.291 INFO [stderr]   --> src/main.rs:43:13
Dec 13 12:10:38.291 INFO [stderr]    |
Dec 13 12:10:38.291 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 13 12:10:38.291 INFO [stderr]    |             ----^^^^^^^
Dec 13 12:10:38.291 INFO [stderr]    |             |
Dec 13 12:10:38.291 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:38.291 INFO [stderr]    |
Dec 13 12:10:38.291 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 12:10:38.291 INFO [stderr] 
Dec 13 12:10:38.291 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.291 INFO [stderr]   --> src/main.rs:44:13
Dec 13 12:10:38.291 INFO [stderr]    |
Dec 13 12:10:38.291 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 13 12:10:38.291 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 13 12:10:38.291 INFO [stderr]    |             |
Dec 13 12:10:38.291 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:38.291 INFO [stderr] 
Dec 13 12:10:38.291 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.291 INFO [stderr]   --> src/main.rs:81:9
Dec 13 12:10:38.291 INFO [stderr]    |
Dec 13 12:10:38.291 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 13 12:10:38.291 INFO [stderr]    |         ----^^^^
Dec 13 12:10:38.291 INFO [stderr]    |         |
Dec 13 12:10:38.291 INFO [stderr]    |         help: remove this `mut`
Dec 13 12:10:38.291 INFO [stderr] 
Dec 13 12:10:38.303 INFO [stderr] warning: method is never used: `save_as_file`
Dec 13 12:10:38.303 INFO [stderr]   --> src/main.rs:32:5
Dec 13 12:10:38.303 INFO [stderr]    |
Dec 13 12:10:38.303 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 13 12:10:38.303 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.303 INFO [stderr]    |
Dec 13 12:10:38.303 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 12:10:38.303 INFO [stderr] 
Dec 13 12:10:38.303 INFO [stderr] warning: function is never used: `create_file`
Dec 13 12:10:38.303 INFO [stderr]   --> src/main.rs:80:1
Dec 13 12:10:38.303 INFO [stderr]    |
Dec 13 12:10:38.303 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 13 12:10:38.303 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.303 INFO [stderr] 
Dec 13 12:10:38.303 INFO [stderr] warning: function is never used: `write_to_file`
Dec 13 12:10:38.303 INFO [stderr]    --> src/main.rs:105:1
Dec 13 12:10:38.303 INFO [stderr]     |
Dec 13 12:10:38.303 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 13 12:10:38.303 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.303 INFO [stderr] 
Dec 13 12:10:38.303 INFO [stderr] warning: function is never used: `override_file`
Dec 13 12:10:38.303 INFO [stderr]    --> src/main.rs:110:1
Dec 13 12:10:38.303 INFO [stderr]     |
Dec 13 12:10:38.303 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 13 12:10:38.303 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.303 INFO [stderr] 
Dec 13 12:10:38.303 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:38.303 INFO [stderr]    --> src/main.rs:107:5
Dec 13 12:10:38.303 INFO [stderr]     |
Dec 13 12:10:38.303 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 13 12:10:38.303 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.303 INFO [stderr]     |
Dec 13 12:10:38.303 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 12:10:38.303 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:38.303 INFO [stderr] 
Dec 13 12:10:38.304 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:38.304 INFO [stderr]    --> src/main.rs:111:5
Dec 13 12:10:38.304 INFO [stderr]     |
Dec 13 12:10:38.304 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 13 12:10:38.304 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.304 INFO [stderr]     |
Dec 13 12:10:38.304 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:38.304 INFO [stderr] 
Dec 13 12:10:38.675 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Dec 13 12:10:38.679 INFO [stderr] su: No module specific data is present
Dec 13 12:10:39.008 INFO running `"docker" "inspect" "ffd64faa8e92d700f5199b9513579da249ff06ffc53c57c870bfc2413a0ef3a4"`
Dec 13 12:10:39.178 INFO running `"docker" "rm" "-f" "ffd64faa8e92d700f5199b9513579da249ff06ffc53c57c870bfc2413a0ef3a4"`
Dec 13 12:10:39.359 INFO [stdout] ffd64faa8e92d700f5199b9513579da249ff06ffc53c57c870bfc2413a0ef3a4
Dec 13 12:10:39.367 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 13 12:10:39.672 INFO [stdout] a56bdf0aac8b6a0d126ecf2ab11bafe004d83ea49cb4df3764e5c9ac20753afc
Dec 13 12:10:39.678 INFO running `"docker" "start" "-a" "a56bdf0aac8b6a0d126ecf2ab11bafe004d83ea49cb4df3764e5c9ac20753afc"`
Dec 13 12:10:40.397 INFO [stderr] usermod: no changes
Dec 13 12:10:40.453 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 13 12:10:40.464 INFO [stderr]      Running /target/debug/deps/todo-bdd2dad2e41be20b
Dec 13 12:10:40.466 INFO [stdout] 
Dec 13 12:10:40.466 INFO [stdout] running 0 tests
Dec 13 12:10:40.466 INFO [stdout] 
Dec 13 12:10:40.466 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 12:10:40.466 INFO [stdout] 
Dec 13 12:10:40.467 INFO [stderr] su: No module specific data is present
Dec 13 12:10:40.900 INFO running `"docker" "inspect" "a56bdf0aac8b6a0d126ecf2ab11bafe004d83ea49cb4df3764e5c9ac20753afc"`
Dec 13 12:10:40.988 INFO running `"docker" "rm" "-f" "a56bdf0aac8b6a0d126ecf2ab11bafe004d83ea49cb4df3764e5c9ac20753afc"`
Dec 13 12:10:41.111 INFO [stdout] a56bdf0aac8b6a0d126ecf2ab11bafe004d83ea49cb4df3764e5c9ac20753afc