Dec 12 13:00:39.901 INFO checking idlset-0.1.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 13:00:39.901 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 12 13:00:40.180 INFO [stdout] 6fc4c7f9906f12292b4277ac1fa1864f6227673aee4153c829db29b09cc401c7
Dec 12 13:00:40.196 INFO running `"docker" "start" "-a" "6fc4c7f9906f12292b4277ac1fa1864f6227673aee4153c829db29b09cc401c7"`
Dec 12 13:00:41.044 INFO [stderr] usermod: no changes
Dec 12 13:00:41.108 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 12 13:00:41.124 INFO [stderr]     Checking idlset v0.1.1 (/source)
Dec 12 13:00:41.908 INFO [stderr] warning: method is never used: `len`
Dec 12 13:00:41.908 INFO [stderr]    --> src/lib.rs:243:5
Dec 12 13:00:41.908 INFO [stderr]     |
Dec 12 13:00:41.908 INFO [stderr] 243 |     fn len(&self) -> usize {
Dec 12 13:00:41.908 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 12 13:00:41.908 INFO [stderr]     |
Dec 12 13:00:41.908 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 13:00:41.908 INFO [stderr] 
Dec 12 13:00:42.982 INFO [stderr] warning: method is never used: `len`
Dec 12 13:00:42.982 INFO [stderr]   --> src/idl_simple.rs:33:5
Dec 12 13:00:42.982 INFO [stderr]    |
Dec 12 13:00:42.982 INFO [stderr] 33 |     fn len(&self) -> usize {
Dec 12 13:00:42.982 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 12 13:00:42.982 INFO [stderr]    |
Dec 12 13:00:42.982 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 13:00:42.982 INFO [stderr] 
Dec 12 13:00:43.109 INFO [stderr] warning: method is never used: `len`
Dec 12 13:00:43.109 INFO [stderr]   --> src/idl_simple.rs:33:5
Dec 12 13:00:43.109 INFO [stderr]    |
Dec 12 13:00:43.109 INFO [stderr] 33 |     fn len(&self) -> usize {
Dec 12 13:00:43.109 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 12 13:00:43.109 INFO [stderr]    |
Dec 12 13:00:43.109 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 13:00:43.109 INFO [stderr] 
Dec 12 13:00:43.130 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
Dec 12 13:00:43.131 INFO [stderr] su: No module specific data is present
Dec 12 13:00:43.338 INFO running `"docker" "inspect" "6fc4c7f9906f12292b4277ac1fa1864f6227673aee4153c829db29b09cc401c7"`
Dec 12 13:00:43.427 INFO running `"docker" "rm" "-f" "6fc4c7f9906f12292b4277ac1fa1864f6227673aee4153c829db29b09cc401c7"`
Dec 12 13:00:43.533 INFO [stdout] 6fc4c7f9906f12292b4277ac1fa1864f6227673aee4153c829db29b09cc401c7