Sep 01 06:14:17.714 INFO checking smetamath-3.0.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 06:14:17.714 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 06:14:17.714 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 06:14:17.870 INFO blam! 9884156ec3de5a9106b0615d23378cbb747d1564cc627f7810837324ca9ca64b
Sep 01 06:14:17.872 INFO running `"docker" "start" "-a" "9884156ec3de5a9106b0615d23378cbb747d1564cc627f7810837324ca9ca64b"`
Sep 01 06:14:18.435 INFO kablam!     Checking libc v0.2.43
Sep 01 06:14:18.435 INFO kablam!     Checking unicode-width v0.1.5
Sep 01 06:14:18.435 INFO kablam!     Checking strsim v0.7.0
Sep 01 06:14:18.436 INFO kablam!     Checking cfg-if v0.1.5
Sep 01 06:14:18.436 INFO kablam!     Checking vec_map v0.8.1
Sep 01 06:14:18.436 INFO kablam!     Checking bitflags v1.0.4
Sep 01 06:14:18.445 INFO kablam!     Checking ansi_term v0.11.0
Sep 01 06:14:18.445 INFO kablam!     Checking fnv v1.0.6
Sep 01 06:14:18.807 INFO kablam!     Checking textwrap v0.10.0
Sep 01 06:14:21.346 INFO kablam!     Checking atty v0.2.11
Sep 01 06:14:21.346 INFO kablam!     Checking filetime v0.1.15
Sep 01 06:14:21.719 INFO kablam!     Checking clap v2.32.0
Sep 01 06:14:27.409 INFO kablam!     Checking smetamath v3.0.0 (file:///source)
Sep 01 06:14:30.308 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.308 INFO kablam!    --> src/database.rs:247:25
Sep 01 06:14:30.308 INFO kablam!     |
Sep 01 06:14:30.308 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 01 06:14:30.308 INFO kablam!     |                         ----^^
Sep 01 06:14:30.308 INFO kablam!     |                         |
Sep 01 06:14:30.308 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.308 INFO kablam!     |
Sep 01 06:14:30.308 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 06:14:30.308 INFO kablam! 
Sep 01 06:14:30.309 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.309 INFO kablam!    --> src/database.rs:247:25
Sep 01 06:14:30.309 INFO kablam!     |
Sep 01 06:14:30.309 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 01 06:14:30.309 INFO kablam!     |                         ----^^
Sep 01 06:14:30.309 INFO kablam!     |                         |
Sep 01 06:14:30.309 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.309 INFO kablam! 
Sep 01 06:14:30.311 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.311 INFO kablam!    --> src/database.rs:268:25
Sep 01 06:14:30.311 INFO kablam!     |
Sep 01 06:14:30.312 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 01 06:14:30.312 INFO kablam!     |                         ----^^
Sep 01 06:14:30.312 INFO kablam!     |                         |
Sep 01 06:14:30.312 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.312 INFO kablam! 
Sep 01 06:14:30.316 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.316 INFO kablam!    --> src/database.rs:291:25
Sep 01 06:14:30.316 INFO kablam!     |
Sep 01 06:14:30.316 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 01 06:14:30.316 INFO kablam!     |                         ----^^^
Sep 01 06:14:30.316 INFO kablam!     |                         |
Sep 01 06:14:30.316 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.316 INFO kablam! 
Sep 01 06:14:30.322 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.322 INFO kablam!    --> src/database.rs:247:25
Sep 01 06:14:30.322 INFO kablam!     |
Sep 01 06:14:30.322 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 01 06:14:30.322 INFO kablam!     |                         ----^^
Sep 01 06:14:30.322 INFO kablam!     |                         |
Sep 01 06:14:30.322 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.322 INFO kablam!     |
Sep 01 06:14:30.322 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 06:14:30.323 INFO kablam! 
Sep 01 06:14:30.323 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.323 INFO kablam!    --> src/database.rs:247:25
Sep 01 06:14:30.323 INFO kablam!     |
Sep 01 06:14:30.323 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 01 06:14:30.323 INFO kablam!     |                         ----^^
Sep 01 06:14:30.323 INFO kablam!     |                         |
Sep 01 06:14:30.323 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.323 INFO kablam! 
Sep 01 06:14:30.326 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.326 INFO kablam!    --> src/database.rs:268:25
Sep 01 06:14:30.326 INFO kablam!     |
Sep 01 06:14:30.326 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 01 06:14:30.326 INFO kablam!     |                         ----^^
Sep 01 06:14:30.326 INFO kablam!     |                         |
Sep 01 06:14:30.326 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.326 INFO kablam! 
Sep 01 06:14:30.330 INFO kablam! warning: variable does not need to be mutable
Sep 01 06:14:30.330 INFO kablam!    --> src/database.rs:291:25
Sep 01 06:14:30.330 INFO kablam!     |
Sep 01 06:14:30.330 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 01 06:14:30.330 INFO kablam!     |                         ----^^^
Sep 01 06:14:30.330 INFO kablam!     |                         |
Sep 01 06:14:30.330 INFO kablam!     |                         help: remove this `mut`
Sep 01 06:14:30.330 INFO kablam! 
Sep 01 06:14:31.035 INFO kablam!     Finished dev [optimized + debuginfo] target(s) in 12.64s
Sep 01 06:14:31.039 INFO kablam! su: No module specific data is present
Sep 01 06:14:31.548 INFO running `"docker" "rm" "-f" "9884156ec3de5a9106b0615d23378cbb747d1564cc627f7810837324ca9ca64b"`
Sep 01 06:14:31.645 INFO blam! 9884156ec3de5a9106b0615d23378cbb747d1564cc627f7810837324ca9ca64b