Nov 16 20:53:47.180 INFO testing luki/2do against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 16 20:53:47.180 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 16 20:53:47.675 INFO [stdout] 7eddb69be7012a7127a3e0e2438854275b6d7149c3404b20f7c12f54ac77ef24
Nov 16 20:53:47.675 INFO running `"docker" "start" "-a" "7eddb69be7012a7127a3e0e2438854275b6d7149c3404b20f7c12f54ac77ef24"`
Nov 16 20:53:48.787 INFO [stderr] usermod: no changes
Nov 16 20:53:48.859 INFO [stderr]    Compiling chrono v0.2.25
Nov 16 20:53:51.740 INFO [stderr]    Compiling todo v0.1.0 (/source)
Nov 16 20:53:52.131 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:52.131 INFO [stderr]   --> src/main.rs:43:13
Nov 16 20:53:52.131 INFO [stderr]    |
Nov 16 20:53:52.131 INFO [stderr] 43 |         let mut content = read_from_file(file);
Nov 16 20:53:52.131 INFO [stderr]    |             ----^^^^^^^
Nov 16 20:53:52.131 INFO [stderr]    |             |
Nov 16 20:53:52.131 INFO [stderr]    |             help: remove this `mut`
Nov 16 20:53:52.131 INFO [stderr]    |
Nov 16 20:53:52.131 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 20:53:52.131 INFO [stderr] 
Nov 16 20:53:52.131 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:52.131 INFO [stderr]   --> src/main.rs:44:13
Nov 16 20:53:52.131 INFO [stderr]    |
Nov 16 20:53:52.131 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Nov 16 20:53:52.131 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 16 20:53:52.131 INFO [stderr]    |             |
Nov 16 20:53:52.131 INFO [stderr]    |             help: remove this `mut`
Nov 16 20:53:52.131 INFO [stderr] 
Nov 16 20:53:52.142 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:52.142 INFO [stderr]   --> src/main.rs:81:9
Nov 16 20:53:52.142 INFO [stderr]    |
Nov 16 20:53:52.142 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Nov 16 20:53:52.142 INFO [stderr]    |         ----^^^^
Nov 16 20:53:52.142 INFO [stderr]    |         |
Nov 16 20:53:52.142 INFO [stderr]    |         help: remove this `mut`
Nov 16 20:53:52.142 INFO [stderr] 
Nov 16 20:53:52.142 INFO [stderr] warning: method is never used: `save_as_file`
Nov 16 20:53:52.142 INFO [stderr]   --> src/main.rs:32:5
Nov 16 20:53:52.142 INFO [stderr]    |
Nov 16 20:53:52.142 INFO [stderr] 32 |     fn save_as_file(&self) {
Nov 16 20:53:52.142 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.142 INFO [stderr]    |
Nov 16 20:53:52.142 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 20:53:52.142 INFO [stderr] 
Nov 16 20:53:52.142 INFO [stderr] warning: function is never used: `create_file`
Nov 16 20:53:52.142 INFO [stderr]   --> src/main.rs:80:1
Nov 16 20:53:52.142 INFO [stderr]    |
Nov 16 20:53:52.142 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Nov 16 20:53:52.142 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.142 INFO [stderr] 
Nov 16 20:53:52.142 INFO [stderr] warning: function is never used: `write_to_file`
Nov 16 20:53:52.142 INFO [stderr]    --> src/main.rs:105:1
Nov 16 20:53:52.142 INFO [stderr]     |
Nov 16 20:53:52.142 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Nov 16 20:53:52.142 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.142 INFO [stderr] 
Nov 16 20:53:52.142 INFO [stderr] warning: function is never used: `override_file`
Nov 16 20:53:52.142 INFO [stderr]    --> src/main.rs:110:1
Nov 16 20:53:52.142 INFO [stderr]     |
Nov 16 20:53:52.142 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Nov 16 20:53:52.142 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.142 INFO [stderr] 
Nov 16 20:53:52.149 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 20:53:52.150 INFO [stderr]    --> src/main.rs:107:5
Nov 16 20:53:52.150 INFO [stderr]     |
Nov 16 20:53:52.150 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Nov 16 20:53:52.150 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.150 INFO [stderr]     |
Nov 16 20:53:52.150 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 16 20:53:52.150 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 20:53:52.150 INFO [stderr] 
Nov 16 20:53:52.150 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 20:53:52.150 INFO [stderr]    --> src/main.rs:111:5
Nov 16 20:53:52.150 INFO [stderr]     |
Nov 16 20:53:52.150 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Nov 16 20:53:52.150 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:52.150 INFO [stderr]     |
Nov 16 20:53:52.150 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 20:53:52.150 INFO [stderr] 
Nov 16 20:53:52.905 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.08s
Nov 16 20:53:52.905 INFO [stderr] su: No module specific data is present
Nov 16 20:53:53.657 INFO running `"docker" "inspect" "7eddb69be7012a7127a3e0e2438854275b6d7149c3404b20f7c12f54ac77ef24"`
Nov 16 20:53:53.969 INFO running `"docker" "rm" "-f" "7eddb69be7012a7127a3e0e2438854275b6d7149c3404b20f7c12f54ac77ef24"`
Nov 16 20:53:54.294 INFO [stdout] 7eddb69be7012a7127a3e0e2438854275b6d7149c3404b20f7c12f54ac77ef24
Nov 16 20:53:54.297 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 16 20:53:54.714 INFO [stdout] d4a4e39bde669f8cf4433bd9bd4ff7ab1228945abfc47aa6ad9794a9b0558421
Nov 16 20:53:54.719 INFO running `"docker" "start" "-a" "d4a4e39bde669f8cf4433bd9bd4ff7ab1228945abfc47aa6ad9794a9b0558421"`
Nov 16 20:53:55.326 INFO [stderr] usermod: no changes
Nov 16 20:53:55.362 INFO [stderr]    Compiling todo v0.1.0 (/source)
Nov 16 20:53:55.675 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:55.675 INFO [stderr]   --> src/main.rs:43:13
Nov 16 20:53:55.675 INFO [stderr]    |
Nov 16 20:53:55.675 INFO [stderr] 43 |         let mut content = read_from_file(file);
Nov 16 20:53:55.675 INFO [stderr]    |             ----^^^^^^^
Nov 16 20:53:55.675 INFO [stderr]    |             |
Nov 16 20:53:55.675 INFO [stderr]    |             help: remove this `mut`
Nov 16 20:53:55.675 INFO [stderr]    |
Nov 16 20:53:55.675 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 20:53:55.675 INFO [stderr] 
Nov 16 20:53:55.675 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:55.675 INFO [stderr]   --> src/main.rs:44:13
Nov 16 20:53:55.675 INFO [stderr]    |
Nov 16 20:53:55.675 INFO [stderr] 44 |         let mut content_vec: Vec<&str> = content.split("\n\n").collect();
Nov 16 20:53:55.675 INFO [stderr]    |             ----^^^^^^^^^^^
Nov 16 20:53:55.675 INFO [stderr]    |             |
Nov 16 20:53:55.675 INFO [stderr]    |             help: remove this `mut`
Nov 16 20:53:55.675 INFO [stderr] 
Nov 16 20:53:55.677 INFO [stderr] warning: variable does not need to be mutable
Nov 16 20:53:55.677 INFO [stderr]   --> src/main.rs:81:9
Nov 16 20:53:55.677 INFO [stderr]    |
Nov 16 20:53:55.677 INFO [stderr] 81 |     let mut file = match File::create(format!("{}.{}", file_name, file_extension)) {
Nov 16 20:53:55.677 INFO [stderr]    |         ----^^^^
Nov 16 20:53:55.677 INFO [stderr]    |         |
Nov 16 20:53:55.677 INFO [stderr]    |         help: remove this `mut`
Nov 16 20:53:55.677 INFO [stderr] 
Nov 16 20:53:55.682 INFO [stderr] warning: method is never used: `save_as_file`
Nov 16 20:53:55.683 INFO [stderr]   --> src/main.rs:32:5
Nov 16 20:53:55.683 INFO [stderr]    |
Nov 16 20:53:55.683 INFO [stderr] 32 |     fn save_as_file(&self) {
Nov 16 20:53:55.683 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.683 INFO [stderr]    |
Nov 16 20:53:55.683 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 20:53:55.683 INFO [stderr] 
Nov 16 20:53:55.683 INFO [stderr] warning: function is never used: `create_file`
Nov 16 20:53:55.683 INFO [stderr]   --> src/main.rs:80:1
Nov 16 20:53:55.683 INFO [stderr]    |
Nov 16 20:53:55.683 INFO [stderr] 80 | fn create_file(file_name: &str, file_extension: &str) -> File {
Nov 16 20:53:55.683 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.683 INFO [stderr] 
Nov 16 20:53:55.683 INFO [stderr] warning: function is never used: `write_to_file`
Nov 16 20:53:55.683 INFO [stderr]    --> src/main.rs:105:1
Nov 16 20:53:55.683 INFO [stderr]     |
Nov 16 20:53:55.683 INFO [stderr] 105 | fn write_to_file(file: &mut File, content: &str) {
Nov 16 20:53:55.683 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.683 INFO [stderr] 
Nov 16 20:53:55.683 INFO [stderr] warning: function is never used: `override_file`
Nov 16 20:53:55.683 INFO [stderr]    --> src/main.rs:110:1
Nov 16 20:53:55.683 INFO [stderr]     |
Nov 16 20:53:55.683 INFO [stderr] 110 | fn override_file(file: &mut File, content: &str) {
Nov 16 20:53:55.683 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.683 INFO [stderr] 
Nov 16 20:53:55.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 20:53:55.691 INFO [stderr]    --> src/main.rs:107:5
Nov 16 20:53:55.691 INFO [stderr]     |
Nov 16 20:53:55.691 INFO [stderr] 107 |     file.write_all(content.as_bytes());
Nov 16 20:53:55.691 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.691 INFO [stderr]     |
Nov 16 20:53:55.691 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 16 20:53:55.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 20:53:55.691 INFO [stderr] 
Nov 16 20:53:55.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 20:53:55.691 INFO [stderr]    --> src/main.rs:111:5
Nov 16 20:53:55.691 INFO [stderr]     |
Nov 16 20:53:55.691 INFO [stderr] 111 |     file.write_all(content.as_bytes());
Nov 16 20:53:55.691 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 20:53:55.691 INFO [stderr]     |
Nov 16 20:53:55.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 20:53:55.692 INFO [stderr] 
Nov 16 20:53:55.909 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Nov 16 20:53:55.912 INFO [stderr] su: No module specific data is present
Nov 16 20:53:56.205 INFO running `"docker" "inspect" "d4a4e39bde669f8cf4433bd9bd4ff7ab1228945abfc47aa6ad9794a9b0558421"`
Nov 16 20:53:56.282 INFO running `"docker" "rm" "-f" "d4a4e39bde669f8cf4433bd9bd4ff7ab1228945abfc47aa6ad9794a9b0558421"`
Nov 16 20:53:56.389 INFO [stdout] d4a4e39bde669f8cf4433bd9bd4ff7ab1228945abfc47aa6ad9794a9b0558421
Nov 16 20:53:56.391 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 16 20:53:56.561 INFO [stdout] aee5e3894bef0fbf49e11b3e43f69bdfdc611ea08df59f1ffb677232c0bab26f
Nov 16 20:53:56.563 INFO running `"docker" "start" "-a" "aee5e3894bef0fbf49e11b3e43f69bdfdc611ea08df59f1ffb677232c0bab26f"`
Nov 16 20:53:57.051 INFO [stderr] usermod: no changes
Nov 16 20:53:57.097 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Nov 16 20:53:57.098 INFO [stderr]      Running /target/debug/deps/todo-fae46308f1edc5ce
Nov 16 20:53:57.101 INFO [stdout] 
Nov 16 20:53:57.101 INFO [stdout] running 0 tests
Nov 16 20:53:57.101 INFO [stdout] 
Nov 16 20:53:57.101 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 20:53:57.101 INFO [stdout] 
Nov 16 20:53:57.106 INFO [stderr] su: No module specific data is present
Nov 16 20:53:57.443 INFO running `"docker" "inspect" "aee5e3894bef0fbf49e11b3e43f69bdfdc611ea08df59f1ffb677232c0bab26f"`
Nov 16 20:53:57.526 INFO running `"docker" "rm" "-f" "aee5e3894bef0fbf49e11b3e43f69bdfdc611ea08df59f1ffb677232c0bab26f"`
Nov 16 20:53:57.781 INFO [stdout] aee5e3894bef0fbf49e11b3e43f69bdfdc611ea08df59f1ffb677232c0bab26f