Dec 18 17:13:50.846 INFO checking csvlm-0.1.4 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 17:13:50.846 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/csvlm/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 17:13:51.065 INFO [stdout] 864bf474a6140f1b48f579fa51c75f64038a1db57f51552b2250c97dbec1fa4c
Dec 18 17:13:51.066 INFO running `"docker" "start" "-a" "864bf474a6140f1b48f579fa51c75f64038a1db57f51552b2250c97dbec1fa4c"`
Dec 18 17:13:51.924 INFO [stderr]     Checking csvlm v0.1.4 (/opt/crater/workdir)
Dec 18 17:13:52.218 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:13:52.218 INFO [stderr]   --> src/lib.rs:28:13
Dec 18 17:13:52.219 INFO [stderr]    |
Dec 18 17:13:52.219 INFO [stderr] 28 |         let mut content = file_help::read(&mut self.file);
Dec 18 17:13:52.219 INFO [stderr]    |             ----^^^^^^^
Dec 18 17:13:52.219 INFO [stderr]    |             |
Dec 18 17:13:52.219 INFO [stderr]    |             help: remove this `mut`
Dec 18 17:13:52.219 INFO [stderr]    |
Dec 18 17:13:52.219 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 17:13:52.219 INFO [stderr] 
Dec 18 17:13:52.232 INFO [stderr] warning: function is never used: `create`
Dec 18 17:13:52.232 INFO [stderr]   --> src/file_help.rs:16:1
Dec 18 17:13:52.232 INFO [stderr]    |
Dec 18 17:13:52.233 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 18 17:13:52.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.233 INFO [stderr]    |
Dec 18 17:13:52.233 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:13:52.233 INFO [stderr] 
Dec 18 17:13:52.233 INFO [stderr] warning: function is never used: `write`
Dec 18 17:13:52.233 INFO [stderr]   --> src/file_help.rs:30:1
Dec 18 17:13:52.233 INFO [stderr]    |
Dec 18 17:13:52.233 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 18 17:13:52.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.233 INFO [stderr] 
Dec 18 17:13:52.233 INFO [stderr] warning: function is never used: `delete`
Dec 18 17:13:52.233 INFO [stderr]   --> src/file_help.rs:43:1
Dec 18 17:13:52.233 INFO [stderr]    |
Dec 18 17:13:52.233 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 18 17:13:52.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.233 INFO [stderr] 
Dec 18 17:13:52.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:52.239 INFO [stderr]   --> src/file_help.rs:31:5
Dec 18 17:13:52.239 INFO [stderr]    |
Dec 18 17:13:52.239 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 18 17:13:52.239 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.239 INFO [stderr]    |
Dec 18 17:13:52.239 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 17:13:52.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:52.239 INFO [stderr] 
Dec 18 17:13:52.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:52.239 INFO [stderr]   --> src/file_help.rs:44:5
Dec 18 17:13:52.239 INFO [stderr]    |
Dec 18 17:13:52.239 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 18 17:13:52.239 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.239 INFO [stderr]    |
Dec 18 17:13:52.239 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:52.239 INFO [stderr] 
Dec 18 17:13:52.254 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:13:52.254 INFO [stderr]   --> src/lib.rs:28:13
Dec 18 17:13:52.254 INFO [stderr]    |
Dec 18 17:13:52.254 INFO [stderr] 28 |         let mut content = file_help::read(&mut self.file);
Dec 18 17:13:52.254 INFO [stderr]    |             ----^^^^^^^
Dec 18 17:13:52.254 INFO [stderr]    |             |
Dec 18 17:13:52.254 INFO [stderr]    |             help: remove this `mut`
Dec 18 17:13:52.254 INFO [stderr]    |
Dec 18 17:13:52.254 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 17:13:52.254 INFO [stderr] 
Dec 18 17:13:52.263 INFO [stderr] warning: function is never used: `create`
Dec 18 17:13:52.263 INFO [stderr]   --> src/file_help.rs:16:1
Dec 18 17:13:52.263 INFO [stderr]    |
Dec 18 17:13:52.263 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 18 17:13:52.263 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.263 INFO [stderr]    |
Dec 18 17:13:52.263 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:13:52.263 INFO [stderr] 
Dec 18 17:13:52.263 INFO [stderr] warning: function is never used: `write`
Dec 18 17:13:52.263 INFO [stderr]   --> src/file_help.rs:30:1
Dec 18 17:13:52.263 INFO [stderr]    |
Dec 18 17:13:52.263 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 18 17:13:52.263 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.263 INFO [stderr] 
Dec 18 17:13:52.263 INFO [stderr] warning: function is never used: `delete`
Dec 18 17:13:52.264 INFO [stderr]   --> src/file_help.rs:43:1
Dec 18 17:13:52.264 INFO [stderr]    |
Dec 18 17:13:52.264 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 18 17:13:52.264 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.264 INFO [stderr] 
Dec 18 17:13:52.269 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:52.271 INFO [stderr]   --> src/file_help.rs:31:5
Dec 18 17:13:52.271 INFO [stderr]    |
Dec 18 17:13:52.271 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 18 17:13:52.271 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.271 INFO [stderr]    |
Dec 18 17:13:52.271 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 17:13:52.271 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:52.271 INFO [stderr] 
Dec 18 17:13:52.271 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:52.271 INFO [stderr]   --> src/file_help.rs:44:5
Dec 18 17:13:52.271 INFO [stderr]    |
Dec 18 17:13:52.271 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 18 17:13:52.271 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:52.271 INFO [stderr]    |
Dec 18 17:13:52.271 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:52.271 INFO [stderr] 
Dec 18 17:13:52.288 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 18 17:13:52.541 INFO running `"docker" "inspect" "864bf474a6140f1b48f579fa51c75f64038a1db57f51552b2250c97dbec1fa4c"`
Dec 18 17:13:52.638 INFO running `"docker" "rm" "-f" "864bf474a6140f1b48f579fa51c75f64038a1db57f51552b2250c97dbec1fa4c"`
Dec 18 17:13:52.734 INFO [stdout] 864bf474a6140f1b48f579fa51c75f64038a1db57f51552b2250c97dbec1fa4c