[INFO] updating cached repository nanoxd/hello.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nanoxd/hello.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nanoxd/hello.rs" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/nanoxd/hello.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/nanoxd/hello.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nanoxd/hello.rs" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/nanoxd/hello.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/nanoxd/hello.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 10933bdc16d5a900dcda3ec62264cea34973908a
[INFO] sha for GitHub repo nanoxd/hello.rs: 10933bdc16d5a900dcda3ec62264cea34973908a
[INFO] validating manifest of nanoxd/hello.rs on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nanoxd/hello.rs on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nanoxd/hello.rs
[INFO] finished frobbing nanoxd/hello.rs
[INFO] frobbed toml for nanoxd/hello.rs written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/nanoxd/hello.rs/Cargo.toml
[INFO] started frobbing nanoxd/hello.rs
[INFO] finished frobbing nanoxd/hello.rs
[INFO] frobbed toml for nanoxd/hello.rs written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/nanoxd/hello.rs/Cargo.toml
[INFO] crate nanoxd/hello.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nanoxd/hello.rs against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 103a5d317d409ab3202ef35839145a7774d68e0f2fc894c2645fb6e383b1b744
[INFO] running `"docker" "start" "-a" "103a5d317d409ab3202ef35839145a7774d68e0f2fc894c2645fb6e383b1b744"`
[INFO] [stderr]     Checking hello_rs v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let v2 = v; // Accessing v will now cause an error
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_v2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Wolf`
[INFO] [stderr]   --> src/trait_objects.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Wolf {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]    --> src/main.rs:183:5
[INFO] [stderr]     |
[INFO] [stderr] 183 |     x: T,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]    --> src/main.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     y: T,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/main.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let v2 = v; // Accessing v will now cause an error
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_v2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Wolf`
[INFO] [stderr]   --> src/trait_objects.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Wolf {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]    --> src/main.rs:183:5
[INFO] [stderr]     |
[INFO] [stderr] 183 |     x: T,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]    --> src/main.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     y: T,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "103a5d317d409ab3202ef35839145a7774d68e0f2fc894c2645fb6e383b1b744"`
[INFO] running `"docker" "rm" "-f" "103a5d317d409ab3202ef35839145a7774d68e0f2fc894c2645fb6e383b1b744"`
[INFO] [stdout] 103a5d317d409ab3202ef35839145a7774d68e0f2fc894c2645fb6e383b1b744