Dec 18 13:20:15.104 INFO checking os_type-2.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:20:15.104 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/os_type/2.2.0:/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 13:20:15.337 INFO [stdout] ab825ac72fabf228894c92cd1dbf22794d45a0a32692268cf8d3784259a201eb
Dec 18 13:20:15.339 INFO running `"docker" "start" "-a" "ab825ac72fabf228894c92cd1dbf22794d45a0a32692268cf8d3784259a201eb"`
Dec 18 13:20:15.958 INFO [stderr]     Checking os_type v2.2.0 (/opt/crater/workdir)
Dec 18 13:20:16.384 INFO [stderr] warning: unused import: `super::*`
Dec 18 13:20:16.385 INFO [stderr]   --> src/os_release.rs:60:9
Dec 18 13:20:16.385 INFO [stderr]    |
Dec 18 13:20:16.385 INFO [stderr] 60 |     use super::*;
Dec 18 13:20:16.386 INFO [stderr]    |         ^^^^^^^^
Dec 18 13:20:16.386 INFO [stderr]    |
Dec 18 13:20:16.386 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 13:20:16.387 INFO [stderr] 
Dec 18 13:20:16.516 INFO [stderr] warning: struct is never constructed: `WindowsVer`
Dec 18 13:20:16.516 INFO [stderr]  --> src/windows_ver.rs:4:1
Dec 18 13:20:16.516 INFO [stderr]   |
Dec 18 13:20:16.516 INFO [stderr] 4 | pub struct WindowsVer {
Dec 18 13:20:16.516 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.516 INFO [stderr]   |
Dec 18 13:20:16.516 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 13:20:16.516 INFO [stderr] 
Dec 18 13:20:16.516 INFO [stderr] warning: function is never used: `retrieve`
Dec 18 13:20:16.516 INFO [stderr]  --> src/windows_ver.rs:8:1
Dec 18 13:20:16.516 INFO [stderr]   |
Dec 18 13:20:16.516 INFO [stderr] 8 | pub fn retrieve() -> Option<WindowsVer> {
Dec 18 13:20:16.516 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.516 INFO [stderr] 
Dec 18 13:20:16.517 INFO [stderr] warning: function is never used: `parse`
Dec 18 13:20:16.517 INFO [stderr]   --> src/windows_ver.rs:17:1
Dec 18 13:20:16.517 INFO [stderr]    |
Dec 18 13:20:16.517 INFO [stderr] 17 | pub fn parse(output: String) -> WindowsVer {
Dec 18 13:20:16.517 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.517 INFO [stderr] 
Dec 18 13:20:16.517 INFO [stderr] warning: function is never used: `is_os_x`
Dec 18 13:20:16.517 INFO [stderr]   --> src/sw_vers.rs:27:1
Dec 18 13:20:16.517 INFO [stderr]    |
Dec 18 13:20:16.517 INFO [stderr] 27 | pub fn is_os_x() -> bool {
Dec 18 13:20:16.517 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.517 INFO [stderr] 
Dec 18 13:20:16.778 INFO [stderr] warning: struct is never constructed: `WindowsVer`
Dec 18 13:20:16.779 INFO [stderr]  --> src/windows_ver.rs:4:1
Dec 18 13:20:16.779 INFO [stderr]   |
Dec 18 13:20:16.779 INFO [stderr] 4 | pub struct WindowsVer {
Dec 18 13:20:16.779 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.780 INFO [stderr]   |
Dec 18 13:20:16.780 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 13:20:16.780 INFO [stderr] 
Dec 18 13:20:16.781 INFO [stderr] warning: function is never used: `retrieve`
Dec 18 13:20:16.781 INFO [stderr]  --> src/windows_ver.rs:8:1
Dec 18 13:20:16.781 INFO [stderr]   |
Dec 18 13:20:16.782 INFO [stderr] 8 | pub fn retrieve() -> Option<WindowsVer> {
Dec 18 13:20:16.782 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.782 INFO [stderr] 
Dec 18 13:20:16.782 INFO [stderr] warning: function is never used: `parse`
Dec 18 13:20:16.783 INFO [stderr]   --> src/windows_ver.rs:17:1
Dec 18 13:20:16.783 INFO [stderr]    |
Dec 18 13:20:16.783 INFO [stderr] 17 | pub fn parse(output: String) -> WindowsVer {
Dec 18 13:20:16.784 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.784 INFO [stderr] 
Dec 18 13:20:16.784 INFO [stderr] warning: function is never used: `is_os_x`
Dec 18 13:20:16.784 INFO [stderr]   --> src/sw_vers.rs:27:1
Dec 18 13:20:16.785 INFO [stderr]    |
Dec 18 13:20:16.785 INFO [stderr] 27 | pub fn is_os_x() -> bool {
Dec 18 13:20:16.785 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:16.785 INFO [stderr] 
Dec 18 13:20:17.425 INFO [stderr] warning: function is never used: `is_os_x`
Dec 18 13:20:17.425 INFO [stderr]   --> tests/../src/sw_vers.rs:27:1
Dec 18 13:20:17.426 INFO [stderr]    |
Dec 18 13:20:17.426 INFO [stderr] 27 | pub fn is_os_x() -> bool {
Dec 18 13:20:17.426 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.426 INFO [stderr]    |
Dec 18 13:20:17.426 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 13:20:17.426 INFO [stderr] 
Dec 18 13:20:17.426 INFO [stderr] warning: function is never used: `retrieve`
Dec 18 13:20:17.426 INFO [stderr]   --> tests/../src/sw_vers.rs:34:1
Dec 18 13:20:17.426 INFO [stderr]    |
Dec 18 13:20:17.426 INFO [stderr] 34 | pub fn retrieve() -> Option<SwVers> {
Dec 18 13:20:17.426 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.426 INFO [stderr] 
Dec 18 13:20:17.426 INFO [stderr] warning: function is never used: `file_exists`
Dec 18 13:20:17.426 INFO [stderr]  --> tests/../src/utils.rs:5:1
Dec 18 13:20:17.426 INFO [stderr]   |
Dec 18 13:20:17.426 INFO [stderr] 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Dec 18 13:20:17.426 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.426 INFO [stderr] 
Dec 18 13:20:17.509 INFO [stderr] warning: function is never used: `read_file`
Dec 18 13:20:17.509 INFO [stderr]   --> tests/../src/rhel_release.rs:12:1
Dec 18 13:20:17.509 INFO [stderr]    |
Dec 18 13:20:17.509 INFO [stderr] 12 | fn read_file(filename: &str) -> Result<String, Error> {
Dec 18 13:20:17.509 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.509 INFO [stderr]    |
Dec 18 13:20:17.509 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 13:20:17.509 INFO [stderr] 
Dec 18 13:20:17.509 INFO [stderr] warning: function is never used: `retrieve`
Dec 18 13:20:17.509 INFO [stderr]   --> tests/../src/rhel_release.rs:19:1
Dec 18 13:20:17.509 INFO [stderr]    |
Dec 18 13:20:17.509 INFO [stderr] 19 | pub fn retrieve() -> Option<RHELRelease> {
Dec 18 13:20:17.509 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.509 INFO [stderr] 
Dec 18 13:20:17.509 INFO [stderr] warning: function is never used: `file_exists`
Dec 18 13:20:17.509 INFO [stderr]  --> tests/../src/utils.rs:5:1
Dec 18 13:20:17.509 INFO [stderr]   |
Dec 18 13:20:17.510 INFO [stderr] 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Dec 18 13:20:17.510 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.510 INFO [stderr] 
Dec 18 13:20:17.538 INFO [stderr] warning: function is never used: `retrieve`
Dec 18 13:20:17.538 INFO [stderr]  --> tests/../src/lsb_release.rs:9:1
Dec 18 13:20:17.538 INFO [stderr]   |
Dec 18 13:20:17.538 INFO [stderr] 9 | pub fn retrieve() -> Option<LsbRelease> {
Dec 18 13:20:17.538 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.538 INFO [stderr]   |
Dec 18 13:20:17.538 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 13:20:17.538 INFO [stderr] 
Dec 18 13:20:17.538 INFO [stderr] warning: function is never used: `is_available`
Dec 18 13:20:17.538 INFO [stderr]   --> tests/../src/lsb_release.rs:18:1
Dec 18 13:20:17.538 INFO [stderr]    |
Dec 18 13:20:17.538 INFO [stderr] 18 | pub fn is_available() -> bool {
Dec 18 13:20:17.538 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.538 INFO [stderr] 
Dec 18 13:20:17.538 INFO [stderr] warning: function is never used: `file_exists`
Dec 18 13:20:17.538 INFO [stderr]  --> tests/../src/utils.rs:5:1
Dec 18 13:20:17.538 INFO [stderr]   |
Dec 18 13:20:17.538 INFO [stderr] 5 | pub fn file_exists<P: AsRef<Path>>(path: P) -> bool {
Dec 18 13:20:17.538 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:20:17.538 INFO [stderr] 
Dec 18 13:20:17.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 18 13:20:17.809 INFO running `"docker" "inspect" "ab825ac72fabf228894c92cd1dbf22794d45a0a32692268cf8d3784259a201eb"`
Dec 18 13:20:17.895 INFO running `"docker" "rm" "-f" "ab825ac72fabf228894c92cd1dbf22794d45a0a32692268cf8d3784259a201eb"`
Dec 18 13:20:17.999 INFO [stdout] ab825ac72fabf228894c92cd1dbf22794d45a0a32692268cf8d3784259a201eb