Sep 10 13:28:25.206 INFO checking os_type-2.0.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 13:28:25.206 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 13:28:25.206 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 13:28:25.398 INFO blam! 932b0de9357e4e20c30aa07b4b06cd8b6b8afc9afa48baba149b31fad07c97ba
Sep 10 13:28:25.400 INFO running `"docker" "start" "-a" "932b0de9357e4e20c30aa07b4b06cd8b6b8afc9afa48baba149b31fad07c97ba"`
Sep 10 13:28:26.341 INFO kablam! usermod: no changes
Sep 10 13:28:26.398 INFO kablam!     Checking os_type v2.0.0 (file:///source)
Sep 10 13:28:26.833 INFO kablam! warning: struct is never constructed: `WindowsVer`
Sep 10 13:28:26.833 INFO kablam!  --> src/windows_ver.rs:4:1
Sep 10 13:28:26.833 INFO kablam!   |
Sep 10 13:28:26.833 INFO kablam! 4 | pub struct WindowsVer {
Sep 10 13:28:26.833 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.833 INFO kablam!   |
Sep 10 13:28:26.833 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 13:28:26.834 INFO kablam! 
Sep 10 13:28:26.834 INFO kablam! warning: function is never used: `retrieve`
Sep 10 13:28:26.834 INFO kablam!  --> src/windows_ver.rs:8:1
Sep 10 13:28:26.834 INFO kablam!   |
Sep 10 13:28:26.834 INFO kablam! 8 | pub fn retrieve() -> Option<WindowsVer> {
Sep 10 13:28:26.834 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.834 INFO kablam! 
Sep 10 13:28:26.834 INFO kablam! warning: function is never used: `parse`
Sep 10 13:28:26.834 INFO kablam!   --> src/windows_ver.rs:17:1
Sep 10 13:28:26.834 INFO kablam!    |
Sep 10 13:28:26.834 INFO kablam! 17 | pub fn parse(output: String) -> WindowsVer {
Sep 10 13:28:26.834 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.834 INFO kablam! 
Sep 10 13:28:26.834 INFO kablam! warning: function is never used: `is_os_x`
Sep 10 13:28:26.834 INFO kablam!   --> src/sw_vers.rs:27:1
Sep 10 13:28:26.834 INFO kablam!    |
Sep 10 13:28:26.834 INFO kablam! 27 | pub fn is_os_x() -> bool {
Sep 10 13:28:26.834 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.834 INFO kablam! 
Sep 10 13:28:26.898 INFO kablam! warning: struct is never constructed: `WindowsVer`
Sep 10 13:28:26.898 INFO kablam!  --> src/windows_ver.rs:4:1
Sep 10 13:28:26.898 INFO kablam!   |
Sep 10 13:28:26.898 INFO kablam! 4 | pub struct WindowsVer {
Sep 10 13:28:26.898 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.898 INFO kablam!   |
Sep 10 13:28:26.898 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 13:28:26.898 INFO kablam! 
Sep 10 13:28:26.898 INFO kablam! warning: function is never used: `retrieve`
Sep 10 13:28:26.898 INFO kablam!  --> src/windows_ver.rs:8:1
Sep 10 13:28:26.898 INFO kablam!   |
Sep 10 13:28:26.898 INFO kablam! 8 | pub fn retrieve() -> Option<WindowsVer> {
Sep 10 13:28:26.898 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.898 INFO kablam! 
Sep 10 13:28:26.898 INFO kablam! warning: function is never used: `parse`
Sep 10 13:28:26.898 INFO kablam!   --> src/windows_ver.rs:17:1
Sep 10 13:28:26.898 INFO kablam!    |
Sep 10 13:28:26.898 INFO kablam! 17 | pub fn parse(output: String) -> WindowsVer {
Sep 10 13:28:26.898 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.898 INFO kablam! 
Sep 10 13:28:26.898 INFO kablam! warning: function is never used: `is_os_x`
Sep 10 13:28:26.898 INFO kablam!   --> src/sw_vers.rs:27:1
Sep 10 13:28:26.898 INFO kablam!    |
Sep 10 13:28:26.898 INFO kablam! 27 | pub fn is_os_x() -> bool {
Sep 10 13:28:26.898 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:26.898 INFO kablam! 
Sep 10 13:28:27.422 INFO kablam! warning: function is never used: `read_file`
Sep 10 13:28:27.422 INFO kablam!   --> tests/../src/rhel_release.rs:12:1
Sep 10 13:28:27.422 INFO kablam!    |
Sep 10 13:28:27.422 INFO kablam! 12 | fn read_file(filename: &str) -> Result<String, Error> {
Sep 10 13:28:27.422 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.422 INFO kablam!    |
Sep 10 13:28:27.422 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 13:28:27.422 INFO kablam! 
Sep 10 13:28:27.422 INFO kablam! warning: function is never used: `retrieve`
Sep 10 13:28:27.422 INFO kablam!   --> tests/../src/rhel_release.rs:19:1
Sep 10 13:28:27.422 INFO kablam!    |
Sep 10 13:28:27.422 INFO kablam! 19 | pub fn retrieve() -> Option<RHELRelease> {
Sep 10 13:28:27.422 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.422 INFO kablam! 
Sep 10 13:28:27.422 INFO kablam! warning: function is never used: `file_exists`
Sep 10 13:28:27.422 INFO kablam!  --> tests/../src/utils.rs:5:1
Sep 10 13:28:27.422 INFO kablam!   |
Sep 10 13:28:27.422 INFO kablam! 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Sep 10 13:28:27.422 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.422 INFO kablam! 
Sep 10 13:28:27.422 INFO kablam! warning: function is never used: `is_os_x`
Sep 10 13:28:27.422 INFO kablam!   --> tests/../src/sw_vers.rs:27:1
Sep 10 13:28:27.422 INFO kablam!    |
Sep 10 13:28:27.422 INFO kablam! 27 | pub fn is_os_x() -> bool {
Sep 10 13:28:27.422 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.423 INFO kablam!    |
Sep 10 13:28:27.423 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 13:28:27.423 INFO kablam! 
Sep 10 13:28:27.423 INFO kablam! warning: function is never used: `retrieve`
Sep 10 13:28:27.423 INFO kablam!   --> tests/../src/sw_vers.rs:34:1
Sep 10 13:28:27.423 INFO kablam!    |
Sep 10 13:28:27.423 INFO kablam! 34 | pub fn retrieve() -> Option<SwVers> {
Sep 10 13:28:27.423 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.423 INFO kablam! 
Sep 10 13:28:27.423 INFO kablam! warning: function is never used: `file_exists`
Sep 10 13:28:27.423 INFO kablam!  --> tests/../src/utils.rs:5:1
Sep 10 13:28:27.423 INFO kablam!   |
Sep 10 13:28:27.423 INFO kablam! 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Sep 10 13:28:27.423 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.423 INFO kablam! 
Sep 10 13:28:27.480 INFO kablam! warning: function is never used: `retrieve`
Sep 10 13:28:27.480 INFO kablam!  --> tests/../src/lsb_release.rs:9:1
Sep 10 13:28:27.480 INFO kablam!   |
Sep 10 13:28:27.480 INFO kablam! 9 | pub fn retrieve() -> Option<LsbRelease> {
Sep 10 13:28:27.480 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.480 INFO kablam!   |
Sep 10 13:28:27.480 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 13:28:27.480 INFO kablam! 
Sep 10 13:28:27.482 INFO kablam! warning: function is never used: `is_available`
Sep 10 13:28:27.482 INFO kablam!   --> tests/../src/lsb_release.rs:18:1
Sep 10 13:28:27.482 INFO kablam!    |
Sep 10 13:28:27.482 INFO kablam! 18 | pub fn is_available() -> bool {
Sep 10 13:28:27.482 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.482 INFO kablam! 
Sep 10 13:28:27.482 INFO kablam! warning: function is never used: `file_exists`
Sep 10 13:28:27.482 INFO kablam!  --> tests/../src/utils.rs:5:1
Sep 10 13:28:27.482 INFO kablam!   |
Sep 10 13:28:27.482 INFO kablam! 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Sep 10 13:28:27.482 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:28:27.482 INFO kablam! 
Sep 10 13:28:27.509 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Sep 10 13:28:27.514 INFO kablam! su: No module specific data is present
Sep 10 13:28:28.176 INFO running `"docker" "rm" "-f" "932b0de9357e4e20c30aa07b4b06cd8b6b8afc9afa48baba149b31fad07c97ba"`
Sep 10 13:28:28.297 INFO blam! 932b0de9357e4e20c30aa07b4b06cd8b6b8afc9afa48baba149b31fad07c97ba