Dec 19 12:03:54.075 INFO checking nanoxd/hello.rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:03:54.075 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/nanoxd/hello.rs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:03:54.482 INFO [stdout] 2a591cefb1f78d2a083fd6c60fcebeea7a469ddb2e807a98b373fc40a5b54489
Dec 19 12:03:54.484 INFO running `"docker" "start" "-a" "2a591cefb1f78d2a083fd6c60fcebeea7a469ddb2e807a98b373fc40a5b54489"`
Dec 19 12:03:55.948 INFO [stderr]     Checking hello_rs v0.0.1 (/opt/crater/workdir)
Dec 19 12:03:56.259 INFO [stderr] warning: unused variable: `v2`
Dec 19 12:03:56.259 INFO [stderr]   --> src/main.rs:99:9
Dec 19 12:03:56.259 INFO [stderr]    |
Dec 19 12:03:56.259 INFO [stderr] 99 |     let v2 = v; // Accessing v will now cause an error
Dec 19 12:03:56.259 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 19 12:03:56.259 INFO [stderr]    |
Dec 19 12:03:56.259 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:03:56.259 INFO [stderr] 
Dec 19 12:03:56.259 INFO [stderr] warning: unused variable: `v2`
Dec 19 12:03:56.259 INFO [stderr]   --> src/main.rs:99:9
Dec 19 12:03:56.259 INFO [stderr]    |
Dec 19 12:03:56.259 INFO [stderr] 99 |     let v2 = v; // Accessing v will now cause an error
Dec 19 12:03:56.259 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 19 12:03:56.259 INFO [stderr]    |
Dec 19 12:03:56.259 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:03:56.259 INFO [stderr] 
Dec 19 12:03:56.292 INFO [stderr] warning: struct is never constructed: `Wolf`
Dec 19 12:03:56.292 INFO [stderr]   --> src/trait_objects.rs:11:1
Dec 19 12:03:56.292 INFO [stderr]    |
Dec 19 12:03:56.292 INFO [stderr] 11 | pub struct Wolf {
Dec 19 12:03:56.292 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 12:03:56.292 INFO [stderr]    |
Dec 19 12:03:56.292 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:03:56.292 INFO [stderr] 
Dec 19 12:03:56.292 INFO [stderr] warning: field is never used: `x`
Dec 19 12:03:56.292 INFO [stderr]    --> src/main.rs:183:5
Dec 19 12:03:56.292 INFO [stderr]     |
Dec 19 12:03:56.292 INFO [stderr] 183 |     x: T,
Dec 19 12:03:56.292 INFO [stderr]     |     ^^^^
Dec 19 12:03:56.292 INFO [stderr] 
Dec 19 12:03:56.292 INFO [stderr] warning: field is never used: `y`
Dec 19 12:03:56.292 INFO [stderr]    --> src/main.rs:184:5
Dec 19 12:03:56.292 INFO [stderr]     |
Dec 19 12:03:56.292 INFO [stderr] 184 |     y: T,
Dec 19 12:03:56.292 INFO [stderr]     |     ^^^^
Dec 19 12:03:56.292 INFO [stderr] 
Dec 19 12:03:56.296 INFO [stderr] warning: struct is never constructed: `Wolf`
Dec 19 12:03:56.296 INFO [stderr]   --> src/trait_objects.rs:11:1
Dec 19 12:03:56.296 INFO [stderr]    |
Dec 19 12:03:56.296 INFO [stderr] 11 | pub struct Wolf {
Dec 19 12:03:56.296 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 12:03:56.296 INFO [stderr]    |
Dec 19 12:03:56.296 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:03:56.296 INFO [stderr] 
Dec 19 12:03:56.296 INFO [stderr] warning: field is never used: `x`
Dec 19 12:03:56.296 INFO [stderr]    --> src/main.rs:183:5
Dec 19 12:03:56.296 INFO [stderr]     |
Dec 19 12:03:56.296 INFO [stderr] 183 |     x: T,
Dec 19 12:03:56.296 INFO [stderr]     |     ^^^^
Dec 19 12:03:56.296 INFO [stderr] 
Dec 19 12:03:56.296 INFO [stderr] warning: field is never used: `y`
Dec 19 12:03:56.296 INFO [stderr]    --> src/main.rs:184:5
Dec 19 12:03:56.296 INFO [stderr]     |
Dec 19 12:03:56.296 INFO [stderr] 184 |     y: T,
Dec 19 12:03:56.296 INFO [stderr]     |     ^^^^
Dec 19 12:03:56.296 INFO [stderr] 
Dec 19 12:03:56.335 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Dec 19 12:03:56.651 INFO running `"docker" "inspect" "2a591cefb1f78d2a083fd6c60fcebeea7a469ddb2e807a98b373fc40a5b54489"`
Dec 19 12:03:56.814 INFO running `"docker" "rm" "-f" "2a591cefb1f78d2a083fd6c60fcebeea7a469ddb2e807a98b373fc40a5b54489"`
Dec 19 12:03:56.936 INFO [stdout] 2a591cefb1f78d2a083fd6c60fcebeea7a469ddb2e807a98b373fc40a5b54489