Sep 05 23:49:31.148 INFO checking smetamath-3.0.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 23:49:31.148 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 23:49:31.148 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-4/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 23:49:31.359 INFO blam! 107a40fc039513f794b94c60df3b8a80943023a0253f36a533f90524312d3a32
Sep 05 23:49:31.361 INFO running `"docker" "start" "-a" "107a40fc039513f794b94c60df3b8a80943023a0253f36a533f90524312d3a32"`
Sep 05 23:49:32.914 INFO kablam! usermod: no changes
Sep 05 23:49:32.998 INFO kablam!     Checking libc v0.2.43
Sep 05 23:49:33.006 INFO kablam!     Checking unicode-width v0.1.5
Sep 05 23:49:33.006 INFO kablam!     Checking vec_map v0.8.1
Sep 05 23:49:33.006 INFO kablam!     Checking strsim v0.7.0
Sep 05 23:49:33.006 INFO kablam!     Checking cfg-if v0.1.5
Sep 05 23:49:33.006 INFO kablam!     Checking bitflags v1.0.4
Sep 05 23:49:33.006 INFO kablam!     Checking ansi_term v0.11.0
Sep 05 23:49:33.006 INFO kablam!     Checking fnv v1.0.6
Sep 05 23:49:33.478 INFO kablam!     Checking textwrap v0.10.0
Sep 05 23:49:35.050 INFO kablam!     Checking atty v0.2.11
Sep 05 23:49:35.050 INFO kablam!     Checking filetime v0.1.15
Sep 05 23:49:35.430 INFO kablam!     Checking clap v2.32.0
Sep 05 23:49:40.670 INFO kablam!     Checking smetamath v3.0.0 (file:///source)
Sep 05 23:49:42.063 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.063 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:42.063 INFO kablam!     |
Sep 05 23:49:42.063 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:42.063 INFO kablam!     |                         ----^^
Sep 05 23:49:42.063 INFO kablam!     |                         |
Sep 05 23:49:42.063 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.063 INFO kablam!     |
Sep 05 23:49:42.063 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 05 23:49:42.063 INFO kablam! 
Sep 05 23:49:42.063 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.063 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:42.063 INFO kablam!     |
Sep 05 23:49:42.063 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:42.063 INFO kablam!     |                         ----^^
Sep 05 23:49:42.063 INFO kablam!     |                         |
Sep 05 23:49:42.064 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.064 INFO kablam! 
Sep 05 23:49:42.065 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.065 INFO kablam!    --> src/database.rs:268:25
Sep 05 23:49:42.065 INFO kablam!     |
Sep 05 23:49:42.065 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 05 23:49:42.065 INFO kablam!     |                         ----^^
Sep 05 23:49:42.065 INFO kablam!     |                         |
Sep 05 23:49:42.065 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.065 INFO kablam! 
Sep 05 23:49:42.070 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.070 INFO kablam!    --> src/database.rs:291:25
Sep 05 23:49:42.070 INFO kablam!     |
Sep 05 23:49:42.070 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 05 23:49:42.070 INFO kablam!     |                         ----^^^
Sep 05 23:49:42.070 INFO kablam!     |                         |
Sep 05 23:49:42.070 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.070 INFO kablam! 
Sep 05 23:49:42.178 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.178 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:42.178 INFO kablam!     |
Sep 05 23:49:42.178 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:42.178 INFO kablam!     |                         ----^^
Sep 05 23:49:42.178 INFO kablam!     |                         |
Sep 05 23:49:42.178 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.178 INFO kablam!     |
Sep 05 23:49:42.178 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 05 23:49:42.178 INFO kablam! 
Sep 05 23:49:42.178 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.178 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:42.178 INFO kablam!     |
Sep 05 23:49:42.178 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:42.178 INFO kablam!     |                         ----^^
Sep 05 23:49:42.178 INFO kablam!     |                         |
Sep 05 23:49:42.178 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.182 INFO kablam! 
Sep 05 23:49:42.182 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.182 INFO kablam!    --> src/database.rs:268:25
Sep 05 23:49:42.182 INFO kablam!     |
Sep 05 23:49:42.182 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 05 23:49:42.182 INFO kablam!     |                         ----^^
Sep 05 23:49:42.182 INFO kablam!     |                         |
Sep 05 23:49:42.182 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.182 INFO kablam! 
Sep 05 23:49:42.182 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:42.182 INFO kablam!    --> src/database.rs:291:25
Sep 05 23:49:42.182 INFO kablam!     |
Sep 05 23:49:42.182 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 05 23:49:42.182 INFO kablam!     |                         ----^^^
Sep 05 23:49:42.182 INFO kablam!     |                         |
Sep 05 23:49:42.182 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:42.182 INFO kablam! 
Sep 05 23:49:42.534 INFO kablam!     Finished dev [optimized + debuginfo] target(s) in 9.58s
Sep 05 23:49:42.537 INFO kablam! su: No module specific data is present
Sep 05 23:49:43.216 INFO running `"docker" "rm" "-f" "107a40fc039513f794b94c60df3b8a80943023a0253f36a533f90524312d3a32"`
Sep 05 23:49:43.330 INFO blam! 107a40fc039513f794b94c60df3b8a80943023a0253f36a533f90524312d3a32