Dec 13 12:10:34.676 INFO testing luki/2do against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 12:10:34.676 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12:10:35.040 INFO [stdout] a094c5c259236e418c29294601bbbfce29d32d9a6a250e472e856043bd156a09
Dec 13 12:10:35.044 INFO running `"docker" "start" "-a" "a094c5c259236e418c29294601bbbfce29d32d9a6a250e472e856043bd156a09"`
Dec 13 12:10:36.136 INFO [stderr] usermod: no changes
Dec 13 12:10:36.228 INFO [stderr]    Compiling chrono v0.2.25
Dec 13 12:10:38.610 INFO [stderr]    Compiling todo v0.1.0 (/source)
Dec 13 12:10:38.963 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.963 INFO [stderr]   --> src/main.rs:43:13
Dec 13 12:10:38.963 INFO [stderr]    |
Dec 13 12:10:38.963 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 13 12:10:38.963 INFO [stderr]    |             ----^^^^^^^
Dec 13 12:10:38.963 INFO [stderr]    |             |
Dec 13 12:10:38.963 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:38.963 INFO [stderr]    |
Dec 13 12:10:38.963 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 12:10:38.963 INFO [stderr] 
Dec 13 12:10:38.963 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.963 INFO [stderr]   --> src/main.rs:44:13
Dec 13 12:10:38.963 INFO [stderr]    |
Dec 13 12:10:38.963 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 13 12:10:38.963 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 13 12:10:38.963 INFO [stderr]    |             |
Dec 13 12:10:38.963 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:38.963 INFO [stderr] 
Dec 13 12:10:38.963 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:38.963 INFO [stderr]   --> src/main.rs:81:9
Dec 13 12:10:38.963 INFO [stderr]    |
Dec 13 12:10:38.963 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 13 12:10:38.963 INFO [stderr]    |         ----^^^^
Dec 13 12:10:38.963 INFO [stderr]    |         |
Dec 13 12:10:38.963 INFO [stderr]    |         help: remove this `mut`
Dec 13 12:10:38.963 INFO [stderr] 
Dec 13 12:10:38.966 INFO [stderr] warning: method is never used: `save_as_file`
Dec 13 12:10:38.967 INFO [stderr]   --> src/main.rs:32:5
Dec 13 12:10:38.967 INFO [stderr]    |
Dec 13 12:10:38.967 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 13 12:10:38.967 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.967 INFO [stderr]    |
Dec 13 12:10:38.967 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 12:10:38.967 INFO [stderr] 
Dec 13 12:10:38.967 INFO [stderr] warning: function is never used: `create_file`
Dec 13 12:10:38.967 INFO [stderr]   --> src/main.rs:80:1
Dec 13 12:10:38.967 INFO [stderr]    |
Dec 13 12:10:38.967 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 13 12:10:38.967 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.967 INFO [stderr] 
Dec 13 12:10:38.967 INFO [stderr] warning: function is never used: `write_to_file`
Dec 13 12:10:38.967 INFO [stderr]    --> src/main.rs:105:1
Dec 13 12:10:38.967 INFO [stderr]     |
Dec 13 12:10:38.967 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 13 12:10:38.967 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.967 INFO [stderr] 
Dec 13 12:10:38.967 INFO [stderr] warning: function is never used: `override_file`
Dec 13 12:10:38.967 INFO [stderr]    --> src/main.rs:110:1
Dec 13 12:10:38.967 INFO [stderr]     |
Dec 13 12:10:38.967 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 13 12:10:38.967 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.967 INFO [stderr] 
Dec 13 12:10:38.974 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:38.974 INFO [stderr]    --> src/main.rs:107:5
Dec 13 12:10:38.974 INFO [stderr]     |
Dec 13 12:10:38.974 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 13 12:10:38.974 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.974 INFO [stderr]     |
Dec 13 12:10:38.974 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 12:10:38.974 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:38.974 INFO [stderr] 
Dec 13 12:10:38.974 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:38.974 INFO [stderr]    --> src/main.rs:111:5
Dec 13 12:10:38.974 INFO [stderr]     |
Dec 13 12:10:38.974 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 13 12:10:38.974 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:38.974 INFO [stderr]     |
Dec 13 12:10:38.974 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:38.974 INFO [stderr] 
Dec 13 12:10:39.498 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
Dec 13 12:10:39.502 INFO [stderr] su: No module specific data is present
Dec 13 12:10:39.884 INFO running `"docker" "inspect" "a094c5c259236e418c29294601bbbfce29d32d9a6a250e472e856043bd156a09"`
Dec 13 12:10:39.961 INFO running `"docker" "rm" "-f" "a094c5c259236e418c29294601bbbfce29d32d9a6a250e472e856043bd156a09"`
Dec 13 12:10:40.094 INFO [stdout] a094c5c259236e418c29294601bbbfce29d32d9a6a250e472e856043bd156a09
Dec 13 12:10:40.097 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12:10:40.429 INFO [stdout] 9410441b7dc01ffca525d81a4c07b7374e7573b7b82c849d2ec618e18634bccd
Dec 13 12:10:40.431 INFO running `"docker" "start" "-a" "9410441b7dc01ffca525d81a4c07b7374e7573b7b82c849d2ec618e18634bccd"`
Dec 13 12:10:41.305 INFO [stderr] usermod: no changes
Dec 13 12:10:41.352 INFO [stderr]    Compiling todo v0.1.0 (/source)
Dec 13 12:10:41.789 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:41.789 INFO [stderr]   --> src/main.rs:43:13
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr] 43 |         let mut content = read_from_file(file);
Dec 13 12:10:41.789 INFO [stderr]    |             ----^^^^^^^
Dec 13 12:10:41.789 INFO [stderr]    |             |
Dec 13 12:10:41.789 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 12:10:41.789 INFO [stderr] 
Dec 13 12:10:41.789 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:41.789 INFO [stderr]   --> src/main.rs:44:13
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Dec 13 12:10:41.789 INFO [stderr]    |             ----^^^^^^^^^^^
Dec 13 12:10:41.789 INFO [stderr]    |             |
Dec 13 12:10:41.789 INFO [stderr]    |             help: remove this `mut`
Dec 13 12:10:41.789 INFO [stderr] 
Dec 13 12:10:41.789 INFO [stderr] warning: variable does not need to be mutable
Dec 13 12:10:41.789 INFO [stderr]   --> src/main.rs:81:9
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Dec 13 12:10:41.789 INFO [stderr]    |         ----^^^^
Dec 13 12:10:41.789 INFO [stderr]    |         |
Dec 13 12:10:41.789 INFO [stderr]    |         help: remove this `mut`
Dec 13 12:10:41.789 INFO [stderr] 
Dec 13 12:10:41.789 INFO [stderr] warning: method is never used: `save_as_file`
Dec 13 12:10:41.789 INFO [stderr]   --> src/main.rs:32:5
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr] 32 |     fn save_as_file(&self) {
Dec 13 12:10:41.789 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.789 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 12:10:41.789 INFO [stderr] 
Dec 13 12:10:41.789 INFO [stderr] warning: function is never used: `create_file`
Dec 13 12:10:41.789 INFO [stderr]   --> src/main.rs:80:1
Dec 13 12:10:41.789 INFO [stderr]    |
Dec 13 12:10:41.790 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Dec 13 12:10:41.790 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.790 INFO [stderr] 
Dec 13 12:10:41.790 INFO [stderr] warning: function is never used: `write_to_file`
Dec 13 12:10:41.790 INFO [stderr]    --> src/main.rs:105:1
Dec 13 12:10:41.790 INFO [stderr]     |
Dec 13 12:10:41.790 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Dec 13 12:10:41.790 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.790 INFO [stderr] 
Dec 13 12:10:41.790 INFO [stderr] warning: function is never used: `override_file`
Dec 13 12:10:41.790 INFO [stderr]    --> src/main.rs:110:1
Dec 13 12:10:41.790 INFO [stderr]     |
Dec 13 12:10:41.790 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Dec 13 12:10:41.790 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.790 INFO [stderr] 
Dec 13 12:10:41.798 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:41.798 INFO [stderr]    --> src/main.rs:107:5
Dec 13 12:10:41.798 INFO [stderr]     |
Dec 13 12:10:41.798 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Dec 13 12:10:41.798 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.798 INFO [stderr]     |
Dec 13 12:10:41.798 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 12:10:41.798 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:41.798 INFO [stderr] 
Dec 13 12:10:41.798 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 12:10:41.798 INFO [stderr]    --> src/main.rs:111:5
Dec 13 12:10:41.798 INFO [stderr]     |
Dec 13 12:10:41.798 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Dec 13 12:10:41.798 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 12:10:41.798 INFO [stderr]     |
Dec 13 12:10:41.798 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 12:10:41.798 INFO [stderr] 
Dec 13 12:10:42.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 13 12:10:42.006 INFO [stderr] su: No module specific data is present
Dec 13 12:10:42.343 INFO running `"docker" "inspect" "9410441b7dc01ffca525d81a4c07b7374e7573b7b82c849d2ec618e18634bccd"`
Dec 13 12:10:42.425 INFO running `"docker" "rm" "-f" "9410441b7dc01ffca525d81a4c07b7374e7573b7b82c849d2ec618e18634bccd"`
Dec 13 12:10:42.540 INFO [stdout] 9410441b7dc01ffca525d81a4c07b7374e7573b7b82c849d2ec618e18634bccd
Dec 13 12:10:42.542 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12:10:42.686 INFO [stdout] 9059d07c75d7f9952d37bd75a2db478f19805075f635235f951c66b186903257
Dec 13 12:10:42.688 INFO running `"docker" "start" "-a" "9059d07c75d7f9952d37bd75a2db478f19805075f635235f951c66b186903257"`
Dec 13 12:10:43.371 INFO [stderr] usermod: no changes
Dec 13 12:10:43.389 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 13 12:10:43.400 INFO [stderr]      Running /target/debug/deps/todo-9db5bd91ab26d1cf
Dec 13 12:10:43.404 INFO [stdout] 
Dec 13 12:10:43.404 INFO [stdout] running 0 tests
Dec 13 12:10:43.404 INFO [stdout] 
Dec 13 12:10:43.404 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 12:10:43.404 INFO [stdout] 
Dec 13 12:10:43.405 INFO [stderr] su: No module specific data is present
Dec 13 12:10:43.726 INFO running `"docker" "inspect" "9059d07c75d7f9952d37bd75a2db478f19805075f635235f951c66b186903257"`
Dec 13 12:10:43.841 INFO running `"docker" "rm" "-f" "9059d07c75d7f9952d37bd75a2db478f19805075f635235f951c66b186903257"`
Dec 13 12:10:43.927 INFO [stdout] 9059d07c75d7f9952d37bd75a2db478f19805075f635235f951c66b186903257