Dec 12 17:56:09.002 INFO checking aterm-0.20.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 17:56:09.002 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 17:56:09.392 INFO [stdout] be41b28ab4c0d1a4ab337a152a2902f34f53262f894b6d68fbe95a09ed2637d1
Dec 12 17:56:09.400 INFO running `"docker" "start" "-a" "be41b28ab4c0d1a4ab337a152a2902f34f53262f894b6d68fbe95a09ed2637d1"`
Dec 12 17:56:10.420 INFO [stderr] usermod: no changes
Dec 12 17:56:10.528 INFO [stderr]     Checking aterm v0.20.0 (/source)
Dec 12 17:56:12.368 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:56:12.368 INFO [stderr]    --> src/rc/mod.rs:221:13
Dec 12 17:56:12.368 INFO [stderr]     |
Dec 12 17:56:12.368 INFO [stderr] 221 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Dec 12 17:56:12.368 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 12 17:56:12.368 INFO [stderr]     |             |
Dec 12 17:56:12.368 INFO [stderr]     |             help: remove this `mut`
Dec 12 17:56:12.368 INFO [stderr]     |
Dec 12 17:56:12.368 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 17:56:12.368 INFO [stderr] 
Dec 12 17:56:12.382 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:56:12.382 INFO [stderr]   --> src/rc/shared.rs:78:13
Dec 12 17:56:12.382 INFO [stderr]    |
Dec 12 17:56:12.382 INFO [stderr] 78 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Dec 12 17:56:12.382 INFO [stderr]    |             ----^^^^^^^^^^^^
Dec 12 17:56:12.382 INFO [stderr]    |             |
Dec 12 17:56:12.382 INFO [stderr]    |             help: remove this `mut`
Dec 12 17:56:12.382 INFO [stderr] 
Dec 12 17:56:12.500 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 12 17:56:12.500 INFO [stderr]   --> src/rc/mod.rs:71:19
Dec 12 17:56:12.500 INFO [stderr]    |
Dec 12 17:56:12.500 INFO [stderr] 71 | pub type T<'s, A: ATermT<'s>> = Term<'s, <A as ATermT<'s>>::Blob>;
Dec 12 17:56:12.500 INFO [stderr]    |                   ^^^^^^^^^^
Dec 12 17:56:12.500 INFO [stderr]    |
Dec 12 17:56:12.500 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 12 17:56:12.500 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 12 17:56:12.500 INFO [stderr] 
Dec 12 17:56:12.848 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:56:12.848 INFO [stderr]    --> src/rc/mod.rs:221:13
Dec 12 17:56:12.848 INFO [stderr]     |
Dec 12 17:56:12.848 INFO [stderr] 221 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Dec 12 17:56:12.848 INFO [stderr]     |             ----^^^^^^^^^^^^
Dec 12 17:56:12.848 INFO [stderr]     |             |
Dec 12 17:56:12.848 INFO [stderr]     |             help: remove this `mut`
Dec 12 17:56:12.848 INFO [stderr]     |
Dec 12 17:56:12.848 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 17:56:12.848 INFO [stderr] 
Dec 12 17:56:12.872 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:56:12.872 INFO [stderr]   --> src/rc/shared.rs:78:13
Dec 12 17:56:12.872 INFO [stderr]    |
Dec 12 17:56:12.872 INFO [stderr] 78 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Dec 12 17:56:12.872 INFO [stderr]    |             ----^^^^^^^^^^^^
Dec 12 17:56:12.872 INFO [stderr]    |             |
Dec 12 17:56:12.872 INFO [stderr]    |             help: remove this `mut`
Dec 12 17:56:12.872 INFO [stderr] 
Dec 12 17:56:13.064 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 12 17:56:13.064 INFO [stderr]   --> src/rc/mod.rs:71:19
Dec 12 17:56:13.064 INFO [stderr]    |
Dec 12 17:56:13.064 INFO [stderr] 71 | pub type T<'s, A: ATermT<'s>> = Term<'s, <A as ATermT<'s>>::Blob>;
Dec 12 17:56:13.064 INFO [stderr]    |                   ^^^^^^^^^^
Dec 12 17:56:13.065 INFO [stderr]    |
Dec 12 17:56:13.065 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 12 17:56:13.065 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 12 17:56:13.065 INFO [stderr] 
Dec 12 17:56:15.165 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
Dec 12 17:56:15.168 INFO [stderr] su: No module specific data is present
Dec 12 17:56:15.724 INFO running `"docker" "inspect" "be41b28ab4c0d1a4ab337a152a2902f34f53262f894b6d68fbe95a09ed2637d1"`
Dec 12 17:56:16.080 INFO running `"docker" "rm" "-f" "be41b28ab4c0d1a4ab337a152a2902f34f53262f894b6d68fbe95a09ed2637d1"`
Dec 12 17:56:16.447 INFO [stdout] be41b28ab4c0d1a4ab337a152a2902f34f53262f894b6d68fbe95a09ed2637d1