Dec 12 16:08:54.848 INFO checking csv_reader-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 16:08:54.849 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-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 12 16:08:55.058 INFO [stdout] 6950a0b283736d5fa701afe3a9de9d12a65202d6c6ee2ad9dabb29a723ec3309
Dec 12 16:08:55.060 INFO running `"docker" "start" "-a" "6950a0b283736d5fa701afe3a9de9d12a65202d6c6ee2ad9dabb29a723ec3309"`
Dec 12 16:08:55.573 INFO [stderr] usermod: no changes
Dec 12 16:08:55.616 INFO [stderr]     Checking csv_reader v0.1.1 (/source)
Dec 12 16:08:56.220 INFO [stderr] warning: variable does not need to be mutable
Dec 12 16:08:56.220 INFO [stderr]   --> src/main.rs:26:13
Dec 12 16:08:56.220 INFO [stderr]    |
Dec 12 16:08:56.220 INFO [stderr] 26 |         let mut content = file_help::read(&mut self.file);
Dec 12 16:08:56.220 INFO [stderr]    |             ----^^^^^^^
Dec 12 16:08:56.220 INFO [stderr]    |             |
Dec 12 16:08:56.220 INFO [stderr]    |             help: remove this `mut`
Dec 12 16:08:56.220 INFO [stderr]    |
Dec 12 16:08:56.220 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 16:08:56.220 INFO [stderr] 
Dec 12 16:08:56.232 INFO [stderr] warning: function is never used: `create`
Dec 12 16:08:56.233 INFO [stderr]   --> src/file_help.rs:16:1
Dec 12 16:08:56.233 INFO [stderr]    |
Dec 12 16:08:56.233 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 12 16:08:56.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.233 INFO [stderr]    |
Dec 12 16:08:56.233 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 16:08:56.233 INFO [stderr] 
Dec 12 16:08:56.233 INFO [stderr] warning: function is never used: `write`
Dec 12 16:08:56.233 INFO [stderr]   --> src/file_help.rs:30:1
Dec 12 16:08:56.233 INFO [stderr]    |
Dec 12 16:08:56.233 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 12 16:08:56.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.233 INFO [stderr] 
Dec 12 16:08:56.233 INFO [stderr] warning: function is never used: `delete`
Dec 12 16:08:56.233 INFO [stderr]   --> src/file_help.rs:43:1
Dec 12 16:08:56.233 INFO [stderr]    |
Dec 12 16:08:56.233 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 12 16:08:56.233 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.233 INFO [stderr] 
Dec 12 16:08:56.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 16:08:56.238 INFO [stderr]   --> src/file_help.rs:31:5
Dec 12 16:08:56.238 INFO [stderr]    |
Dec 12 16:08:56.238 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 12 16:08:56.238 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.238 INFO [stderr]    |
Dec 12 16:08:56.238 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 16:08:56.238 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 16:08:56.238 INFO [stderr] 
Dec 12 16:08:56.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 16:08:56.238 INFO [stderr]   --> src/file_help.rs:44:5
Dec 12 16:08:56.238 INFO [stderr]    |
Dec 12 16:08:56.238 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 12 16:08:56.238 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.238 INFO [stderr]    |
Dec 12 16:08:56.238 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 16:08:56.238 INFO [stderr] 
Dec 12 16:08:56.344 INFO [stderr] warning: variable does not need to be mutable
Dec 12 16:08:56.344 INFO [stderr]   --> src/main.rs:26:13
Dec 12 16:08:56.344 INFO [stderr]    |
Dec 12 16:08:56.344 INFO [stderr] 26 |         let mut content = file_help::read(&mut self.file);
Dec 12 16:08:56.344 INFO [stderr]    |             ----^^^^^^^
Dec 12 16:08:56.344 INFO [stderr]    |             |
Dec 12 16:08:56.344 INFO [stderr]    |             help: remove this `mut`
Dec 12 16:08:56.344 INFO [stderr]    |
Dec 12 16:08:56.344 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 16:08:56.344 INFO [stderr] 
Dec 12 16:08:56.349 INFO [stderr] warning: function is never used: `create`
Dec 12 16:08:56.349 INFO [stderr]   --> src/file_help.rs:16:1
Dec 12 16:08:56.349 INFO [stderr]    |
Dec 12 16:08:56.349 INFO [stderr] 16 | pub fn create(direc: String, name: String, extension: String) -> File {
Dec 12 16:08:56.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.349 INFO [stderr]    |
Dec 12 16:08:56.349 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 16:08:56.349 INFO [stderr] 
Dec 12 16:08:56.349 INFO [stderr] warning: function is never used: `write`
Dec 12 16:08:56.349 INFO [stderr]   --> src/file_help.rs:30:1
Dec 12 16:08:56.349 INFO [stderr]    |
Dec 12 16:08:56.349 INFO [stderr] 30 | pub fn write(file: &mut File, content: &String) {
Dec 12 16:08:56.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.349 INFO [stderr] 
Dec 12 16:08:56.349 INFO [stderr] warning: function is never used: `delete`
Dec 12 16:08:56.349 INFO [stderr]   --> src/file_help.rs:43:1
Dec 12 16:08:56.349 INFO [stderr]    |
Dec 12 16:08:56.349 INFO [stderr] 43 | pub fn delete(direc: String, name: String, extension: String) {
Dec 12 16:08:56.349 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.349 INFO [stderr] 
Dec 12 16:08:56.357 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 16:08:56.357 INFO [stderr]   --> src/file_help.rs:31:5
Dec 12 16:08:56.357 INFO [stderr]    |
Dec 12 16:08:56.357 INFO [stderr] 31 |     file.write_all(content.as_bytes());
Dec 12 16:08:56.357 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.357 INFO [stderr]    |
Dec 12 16:08:56.357 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 16:08:56.357 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 16:08:56.357 INFO [stderr] 
Dec 12 16:08:56.358 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 16:08:56.358 INFO [stderr]   --> src/file_help.rs:44:5
Dec 12 16:08:56.358 INFO [stderr]    |
Dec 12 16:08:56.358 INFO [stderr] 44 |     fs::remove_file(format!("{}/{}.{}", direc, name, extension));
Dec 12 16:08:56.358 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 16:08:56.358 INFO [stderr]    |
Dec 12 16:08:56.358 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 16:08:56.358 INFO [stderr] 
Dec 12 16:08:56.404 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 12 16:08:56.409 INFO [stderr] su: No module specific data is present
Dec 12 16:08:56.880 INFO running `"docker" "inspect" "6950a0b283736d5fa701afe3a9de9d12a65202d6c6ee2ad9dabb29a723ec3309"`
Dec 12 16:08:57.065 INFO running `"docker" "rm" "-f" "6950a0b283736d5fa701afe3a9de9d12a65202d6c6ee2ad9dabb29a723ec3309"`
Dec 12 16:08:57.192 INFO [stdout] 6950a0b283736d5fa701afe3a9de9d12a65202d6c6ee2ad9dabb29a723ec3309