Dec 18 17:13:53.724 INFO checking csv_reader-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:13:53.724 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/csv_reader/0.1.1:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 17:13:53.955 INFO [stdout] fb8b5e442843161c13f79df29d553e2f624a54604a9b314e77810fd5bddc972c
Dec 18 17:13:53.957 INFO running `"docker" "start" "-a" "fb8b5e442843161c13f79df29d553e2f624a54604a9b314e77810fd5bddc972c"`
Dec 18 17:13:54.916 INFO [stderr]     Checking csv_reader v0.1.1 (/opt/crater/workdir)
Dec 18 17:13:55.336 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:13:55.336 INFO [stderr]   --> src/main.rs:26:13
Dec 18 17:13:55.336 INFO [stderr]    |
Dec 18 17:13:55.336 INFO [stderr] 26 |         let mut content = file_help::read(&mut self.file);
Dec 18 17:13:55.336 INFO [stderr]    |             ----^^^^^^^
Dec 18 17:13:55.336 INFO [stderr]    |             |
Dec 18 17:13:55.336 INFO [stderr]    |             help: remove this `mut`
Dec 18 17:13:55.336 INFO [stderr]    |
Dec 18 17:13:55.336 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 17:13:55.336 INFO [stderr] 
Dec 18 17:13:55.340 INFO [stderr] warning: function is never used: `create`
Dec 18 17:13:55.340 INFO [stderr]   --> src/file_help.rs:16:1
Dec 18 17:13:55.340 INFO [stderr]    |
Dec 18 17:13:55.340 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 18 17:13:55.340 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.340 INFO [stderr]    |
Dec 18 17:13:55.340 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:13:55.340 INFO [stderr] 
Dec 18 17:13:55.341 INFO [stderr] warning: function is never used: `write`
Dec 18 17:13:55.341 INFO [stderr]   --> src/file_help.rs:30:1
Dec 18 17:13:55.341 INFO [stderr]    |
Dec 18 17:13:55.341 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 18 17:13:55.341 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.341 INFO [stderr] 
Dec 18 17:13:55.341 INFO [stderr] warning: function is never used: `delete`
Dec 18 17:13:55.341 INFO [stderr]   --> src/file_help.rs:43:1
Dec 18 17:13:55.341 INFO [stderr]    |
Dec 18 17:13:55.341 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 18 17:13:55.341 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.341 INFO [stderr] 
Dec 18 17:13:55.352 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:55.352 INFO [stderr]   --> src/file_help.rs:31:5
Dec 18 17:13:55.352 INFO [stderr]    |
Dec 18 17:13:55.352 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 18 17:13:55.352 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.352 INFO [stderr]    |
Dec 18 17:13:55.352 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 17:13:55.352 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:55.352 INFO [stderr] 
Dec 18 17:13:55.352 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:55.352 INFO [stderr]   --> src/file_help.rs:44:5
Dec 18 17:13:55.352 INFO [stderr]    |
Dec 18 17:13:55.352 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 18 17:13:55.352 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.352 INFO [stderr]    |
Dec 18 17:13:55.352 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:55.352 INFO [stderr] 
Dec 18 17:13:55.356 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:13:55.356 INFO [stderr]   --> src/main.rs:26:13
Dec 18 17:13:55.356 INFO [stderr]    |
Dec 18 17:13:55.356 INFO [stderr] 26 |         let mut content = file_help::read(&mut self.file);
Dec 18 17:13:55.356 INFO [stderr]    |             ----^^^^^^^
Dec 18 17:13:55.356 INFO [stderr]    |             |
Dec 18 17:13:55.356 INFO [stderr]    |             help: remove this `mut`
Dec 18 17:13:55.356 INFO [stderr]    |
Dec 18 17:13:55.356 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 17:13:55.356 INFO [stderr] 
Dec 18 17:13:55.370 INFO [stderr] warning: function is never used: `create`
Dec 18 17:13:55.370 INFO [stderr]   --> src/file_help.rs:16:1
Dec 18 17:13:55.370 INFO [stderr]    |
Dec 18 17:13:55.370 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 18 17:13:55.370 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.370 INFO [stderr]    |
Dec 18 17:13:55.370 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 17:13:55.370 INFO [stderr] 
Dec 18 17:13:55.370 INFO [stderr] warning: function is never used: `write`
Dec 18 17:13:55.370 INFO [stderr]   --> src/file_help.rs:30:1
Dec 18 17:13:55.370 INFO [stderr]    |
Dec 18 17:13:55.370 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 18 17:13:55.370 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.370 INFO [stderr] 
Dec 18 17:13:55.370 INFO [stderr] warning: function is never used: `delete`
Dec 18 17:13:55.370 INFO [stderr]   --> src/file_help.rs:43:1
Dec 18 17:13:55.370 INFO [stderr]    |
Dec 18 17:13:55.370 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 18 17:13:55.370 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.370 INFO [stderr] 
Dec 18 17:13:55.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:55.376 INFO [stderr]   --> src/file_help.rs:31:5
Dec 18 17:13:55.376 INFO [stderr]    |
Dec 18 17:13:55.376 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 18 17:13:55.376 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.376 INFO [stderr]    |
Dec 18 17:13:55.376 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 17:13:55.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:55.376 INFO [stderr] 
Dec 18 17:13:55.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:13:55.376 INFO [stderr]   --> src/file_help.rs:44:5
Dec 18 17:13:55.376 INFO [stderr]    |
Dec 18 17:13:55.376 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 18 17:13:55.376 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:13:55.376 INFO [stderr]    |
Dec 18 17:13:55.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:13:55.376 INFO [stderr] 
Dec 18 17:13:55.400 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 18 17:13:55.681 INFO running `"docker" "inspect" "fb8b5e442843161c13f79df29d553e2f624a54604a9b314e77810fd5bddc972c"`
Dec 18 17:13:55.886 INFO running `"docker" "rm" "-f" "fb8b5e442843161c13f79df29d553e2f624a54604a9b314e77810fd5bddc972c"`
Dec 18 17:13:56.074 INFO [stdout] fb8b5e442843161c13f79df29d553e2f624a54604a9b314e77810fd5bddc972c