Dec 17 18:15:31.773 INFO checking owlinux1000/rust-comet2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 18:15:31.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/owlinux1000/rust-comet2:/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 17 18:15:32.188 INFO [stdout] 9d99758b0f604f2a12b5be836ae01a2dcdf23d1bbb0f946350f53580414468d4
Dec 17 18:15:32.192 INFO running `"docker" "start" "-a" "9d99758b0f604f2a12b5be836ae01a2dcdf23d1bbb0f946350f53580414468d4"`
Dec 17 18:15:33.614 INFO [stderr]     Checking rust-comet2 v0.1.0 (/opt/crater/workdir)
Dec 17 18:15:33.988 INFO [stderr] warning: struct is never constructed: `Fr`
Dec 17 18:15:33.989 INFO [stderr]  --> src/hardware.rs:8:1
Dec 17 18:15:33.989 INFO [stderr]   |
Dec 17 18:15:33.989 INFO [stderr] 8 | struct Fr {
Dec 17 18:15:33.989 INFO [stderr]   | ^^^^^^^^^
Dec 17 18:15:33.989 INFO [stderr]   |
Dec 17 18:15:33.989 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:15:33.989 INFO [stderr] 
Dec 17 18:15:33.989 INFO [stderr] warning: method is never used: `new`
Dec 17 18:15:33.989 INFO [stderr]   --> src/hardware.rs:16:5
Dec 17 18:15:33.989 INFO [stderr]    |
Dec 17 18:15:33.989 INFO [stderr] 16 |     pub fn new() -> Fr {
Dec 17 18:15:33.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 17 18:15:33.989 INFO [stderr] 
Dec 17 18:15:33.989 INFO [stderr] warning: method is never used: `set`
Dec 17 18:15:33.989 INFO [stderr]   --> src/hardware.rs:20:5
Dec 17 18:15:33.989 INFO [stderr]    |
Dec 17 18:15:33.989 INFO [stderr] 20 |     pub fn set(&mut self, i: u8, f: bool) {
Dec 17 18:15:33.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:33.989 INFO [stderr] 
Dec 17 18:15:33.989 INFO [stderr] warning: method is never used: `get_all`
Dec 17 18:15:33.989 INFO [stderr]   --> src/hardware.rs:31:5
Dec 17 18:15:33.989 INFO [stderr]    |
Dec 17 18:15:33.989 INFO [stderr] 31 |     pub fn get_all(&self) -> [bool; 3] {
Dec 17 18:15:33.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:33.989 INFO [stderr] 
Dec 17 18:15:33.989 INFO [stderr] warning: method is never used: `get`
Dec 17 18:15:33.989 INFO [stderr]   --> src/hardware.rs:35:5
Dec 17 18:15:33.989 INFO [stderr]    |
Dec 17 18:15:33.989 INFO [stderr] 35 |     pub fn get(&self, i: u8) -> bool {
Dec 17 18:15:33.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:33.989 INFO [stderr] 
Dec 17 18:15:34.480 INFO [stderr] warning: struct is never constructed: `Fr`
Dec 17 18:15:34.480 INFO [stderr]  --> src/hardware.rs:8:1
Dec 17 18:15:34.480 INFO [stderr]   |
Dec 17 18:15:34.480 INFO [stderr] 8 | struct Fr {
Dec 17 18:15:34.480 INFO [stderr]   | ^^^^^^^^^
Dec 17 18:15:34.480 INFO [stderr]   |
Dec 17 18:15:34.480 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:15:34.480 INFO [stderr] 
Dec 17 18:15:34.480 INFO [stderr] warning: method is never used: `new`
Dec 17 18:15:34.480 INFO [stderr]   --> src/hardware.rs:16:5
Dec 17 18:15:34.480 INFO [stderr]    |
Dec 17 18:15:34.480 INFO [stderr] 16 |     pub fn new() -> Fr {
Dec 17 18:15:34.480 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 17 18:15:34.480 INFO [stderr] 
Dec 17 18:15:34.480 INFO [stderr] warning: method is never used: `set`
Dec 17 18:15:34.480 INFO [stderr]   --> src/hardware.rs:20:5
Dec 17 18:15:34.480 INFO [stderr]    |
Dec 17 18:15:34.480 INFO [stderr] 20 |     pub fn set(&mut self, i: u8, f: bool) {
Dec 17 18:15:34.480 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:34.480 INFO [stderr] 
Dec 17 18:15:34.480 INFO [stderr] warning: method is never used: `get_all`
Dec 17 18:15:34.480 INFO [stderr]   --> src/hardware.rs:31:5
Dec 17 18:15:34.480 INFO [stderr]    |
Dec 17 18:15:34.480 INFO [stderr] 31 |     pub fn get_all(&self) -> [bool; 3] {
Dec 17 18:15:34.480 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:34.480 INFO [stderr] 
Dec 17 18:15:34.480 INFO [stderr] warning: method is never used: `get`
Dec 17 18:15:34.480 INFO [stderr]   --> src/hardware.rs:35:5
Dec 17 18:15:34.480 INFO [stderr]    |
Dec 17 18:15:34.480 INFO [stderr] 35 |     pub fn get(&self, i: u8) -> bool {
Dec 17 18:15:34.480 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:15:34.482 INFO [stderr] 
Dec 17 18:15:34.524 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 17 18:15:35.108 INFO running `"docker" "inspect" "9d99758b0f604f2a12b5be836ae01a2dcdf23d1bbb0f946350f53580414468d4"`
Dec 17 18:15:35.288 INFO running `"docker" "rm" "-f" "9d99758b0f604f2a12b5be836ae01a2dcdf23d1bbb0f946350f53580414468d4"`
Dec 17 18:15:35.505 INFO [stdout] 9d99758b0f604f2a12b5be836ae01a2dcdf23d1bbb0f946350f53580414468d4