Dec 11 10:37:30.854 INFO checking ruggeri/nedbase against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:37:30.855 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 10:37:31.219 INFO [stdout] a5b910ee612bfb417c2af511feedc2d7c2a91414fd9efb89e03274d491b517f2
Dec 11 10:37:31.221 INFO running `"docker" "start" "-a" "a5b910ee612bfb417c2af511feedc2d7c2a91414fd9efb89e03274d491b517f2"`
Dec 11 10:37:31.922 INFO [stderr] usermod: no changes
Dec 11 10:37:32.012 INFO [stderr]    Compiling syn v0.15.22
Dec 11 10:37:47.243 INFO [stderr]    Compiling rental-impl v0.5.2
Dec 11 10:38:03.601 INFO [stderr]     Checking rental v0.5.2
Dec 11 10:38:04.960 INFO [stderr]     Checking nedbase v0.1.0 (/source)
Dec 11 10:38:06.248 INFO [stderr] warning: method is never used: `len`
Dec 11 10:38:06.249 INFO [stderr]   --> src/locking/reading/read_guard_path.rs:23:3
Dec 11 10:38:06.249 INFO [stderr]    |
Dec 11 10:38:06.256 INFO [stderr] 23 |   pub fn len(&self) -> usize {
Dec 11 10:38:06.256 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:38:06.256 INFO [stderr]    |
Dec 11 10:38:06.256 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:38:06.256 INFO [stderr] 
Dec 11 10:38:06.256 INFO [stderr] warning: method is never used: `peek_head_lock`
Dec 11 10:38:06.256 INFO [stderr]   --> src/locking/reading/read_guard_path.rs:31:3
Dec 11 10:38:06.256 INFO [stderr]    |
Dec 11 10:38:06.256 INFO [stderr] 31 |   pub fn peek_head_lock(&self, msg: &'static str) -> &ReadGuard {
Dec 11 10:38:06.256 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:38:06.256 INFO [stderr] 
Dec 11 10:38:06.324 INFO [stderr] warning: method is never used: `len`
Dec 11 10:38:06.324 INFO [stderr]   --> src/locking/reading/read_guard_path.rs:23:3
Dec 11 10:38:06.324 INFO [stderr]    |
Dec 11 10:38:06.324 INFO [stderr] 23 |   pub fn len(&self) -> usize {
Dec 11 10:38:06.324 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:38:06.324 INFO [stderr]    |
Dec 11 10:38:06.324 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:38:06.324 INFO [stderr] 
Dec 11 10:38:06.324 INFO [stderr] warning: method is never used: `peek_head_lock`
Dec 11 10:38:06.324 INFO [stderr]   --> src/locking/reading/read_guard_path.rs:31:3
Dec 11 10:38:06.324 INFO [stderr]    |
Dec 11 10:38:06.324 INFO [stderr] 31 |   pub fn peek_head_lock(&self, msg: &'static str) -> &ReadGuard {
Dec 11 10:38:06.324 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:38:06.324 INFO [stderr] 
Dec 11 10:38:07.224 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.28s
Dec 11 10:38:07.229 INFO [stderr] su: No module specific data is present
Dec 11 10:38:07.838 INFO running `"docker" "inspect" "a5b910ee612bfb417c2af511feedc2d7c2a91414fd9efb89e03274d491b517f2"`
Dec 11 10:38:08.071 INFO running `"docker" "rm" "-f" "a5b910ee612bfb417c2af511feedc2d7c2a91414fd9efb89e03274d491b517f2"`
Dec 11 10:38:08.380 INFO [stdout] a5b910ee612bfb417c2af511feedc2d7c2a91414fd9efb89e03274d491b517f2