Dec 18 10:50:29.972 INFO checking stacktools-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:50:29.972 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/stacktools/0.1.0:/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 10:50:30.461 INFO [stdout] 2b4c5eb358006096bcef8e10452bc830aa3a9acf6efc08606524e50ddb1e1a58
Dec 18 10:50:30.463 INFO running `"docker" "start" "-a" "2b4c5eb358006096bcef8e10452bc830aa3a9acf6efc08606524e50ddb1e1a58"`
Dec 18 10:50:33.140 INFO [stderr]     Checking stacktools v0.1.0 (/opt/crater/workdir)
Dec 18 10:50:33.664 INFO [stderr] warning: method is never used: `len`
Dec 18 10:50:33.664 INFO [stderr]   --> src/lib.rs:25:5
Dec 18 10:50:33.664 INFO [stderr]    |
Dec 18 10:50:33.664 INFO [stderr] 25 |     fn len(&self) -> usize {
Dec 18 10:50:33.664 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.664 INFO [stderr]    |
Dec 18 10:50:33.664 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 10:50:33.664 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `push`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:29:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 29 |     fn push(&mut self, v: T) {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `iter`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:33:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 33 |     fn iter(&self) -> vec_deque::Iter<T> {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `len`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:45:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 45 |     fn len(&self) -> usize {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `push`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:49:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 49 |     fn push(&mut self, v: T) {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `iter`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:53:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 53 |     fn iter(&self) -> vec_deque::Iter<T> {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `len`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:86:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 86 |     fn len(&self) -> usize {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `push`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:90:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 90 |     fn push(&mut self, v: T) {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.665 INFO [stderr] warning: method is never used: `iter`
Dec 18 10:50:33.665 INFO [stderr]   --> src/lib.rs:94:5
Dec 18 10:50:33.665 INFO [stderr]    |
Dec 18 10:50:33.665 INFO [stderr] 94 |     fn iter(&self) -> binary_heap::Iter<T> {
Dec 18 10:50:33.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:50:33.665 INFO [stderr] 
Dec 18 10:50:33.888 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 18 10:50:34.506 INFO running `"docker" "inspect" "2b4c5eb358006096bcef8e10452bc830aa3a9acf6efc08606524e50ddb1e1a58"`
Dec 18 10:50:34.828 INFO running `"docker" "rm" "-f" "2b4c5eb358006096bcef8e10452bc830aa3a9acf6efc08606524e50ddb1e1a58"`
Dec 18 10:50:35.120 INFO [stdout] 2b4c5eb358006096bcef8e10452bc830aa3a9acf6efc08606524e50ddb1e1a58