Sep 21 02:53:02.640 INFO checking smetamath-3.0.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 02:53:02.640 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 02:53:02.640 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:53:02.934 INFO blam! f32cdaf373e3f18454721606fd9bb528343191fecfd0043fcb052bb1f6c48487
Sep 21 02:53:02.935 INFO running `"docker" "start" "-a" "f32cdaf373e3f18454721606fd9bb528343191fecfd0043fcb052bb1f6c48487"`
Sep 21 02:53:03.961 INFO kablam! usermod: no changes
Sep 21 02:53:04.098 INFO kablam!     Checking unicode-width v0.1.5
Sep 21 02:53:04.102 INFO kablam!     Checking libc v0.2.43
Sep 21 02:53:04.102 INFO kablam!     Checking ansi_term v0.11.0
Sep 21 02:53:04.102 INFO kablam!     Checking strsim v0.7.0
Sep 21 02:53:04.102 INFO kablam!     Checking vec_map v0.8.1
Sep 21 02:53:04.102 INFO kablam!     Checking bitflags v1.0.4
Sep 21 02:53:04.102 INFO kablam!     Checking cfg-if v0.1.5
Sep 21 02:53:04.102 INFO kablam!     Checking fnv v1.0.6
Sep 21 02:53:04.854 INFO kablam!     Checking textwrap v0.10.0
Sep 21 02:53:06.406 INFO kablam!     Checking atty v0.2.11
Sep 21 02:53:06.407 INFO kablam!     Checking filetime v0.1.15
Sep 21 02:53:06.936 INFO kablam!     Checking clap v2.32.0
Sep 21 02:53:11.745 INFO kablam!     Checking smetamath v3.0.0 (/source)
Sep 21 02:53:13.646 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.646 INFO kablam!    --> src/database.rs:247:25
Sep 21 02:53:13.646 INFO kablam!     |
Sep 21 02:53:13.646 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 21 02:53:13.646 INFO kablam!     |                         ----^^
Sep 21 02:53:13.646 INFO kablam!     |                         |
Sep 21 02:53:13.646 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.646 INFO kablam!     |
Sep 21 02:53:13.646 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 02:53:13.646 INFO kablam! 
Sep 21 02:53:13.646 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.646 INFO kablam!    --> src/database.rs:247:25
Sep 21 02:53:13.646 INFO kablam!     |
Sep 21 02:53:13.646 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 21 02:53:13.646 INFO kablam!     |                         ----^^
Sep 21 02:53:13.646 INFO kablam!     |                         |
Sep 21 02:53:13.646 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.646 INFO kablam! 
Sep 21 02:53:13.646 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.646 INFO kablam!    --> src/database.rs:268:25
Sep 21 02:53:13.646 INFO kablam!     |
Sep 21 02:53:13.646 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 21 02:53:13.646 INFO kablam!     |                         ----^^
Sep 21 02:53:13.646 INFO kablam!     |                         |
Sep 21 02:53:13.646 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.646 INFO kablam! 
Sep 21 02:53:13.646 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.646 INFO kablam!    --> src/database.rs:291:25
Sep 21 02:53:13.646 INFO kablam!     |
Sep 21 02:53:13.646 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 21 02:53:13.646 INFO kablam!     |                         ----^^^
Sep 21 02:53:13.646 INFO kablam!     |                         |
Sep 21 02:53:13.646 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.646 INFO kablam! 
Sep 21 02:53:13.647 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.647 INFO kablam!    --> src/database.rs:247:25
Sep 21 02:53:13.647 INFO kablam!     |
Sep 21 02:53:13.647 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 21 02:53:13.647 INFO kablam!     |                         ----^^
Sep 21 02:53:13.647 INFO kablam!     |                         |
Sep 21 02:53:13.647 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.647 INFO kablam!     |
Sep 21 02:53:13.647 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 02:53:13.647 INFO kablam! 
Sep 21 02:53:13.647 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.647 INFO kablam!    --> src/database.rs:247:25
Sep 21 02:53:13.647 INFO kablam!     |
Sep 21 02:53:13.647 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 21 02:53:13.654 INFO kablam!     |                         ----^^
Sep 21 02:53:13.654 INFO kablam!     |                         |
Sep 21 02:53:13.654 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.654 INFO kablam! 
Sep 21 02:53:13.654 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.654 INFO kablam!    --> src/database.rs:268:25
Sep 21 02:53:13.654 INFO kablam!     |
Sep 21 02:53:13.654 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 21 02:53:13.654 INFO kablam!     |                         ----^^
Sep 21 02:53:13.654 INFO kablam!     |                         |
Sep 21 02:53:13.654 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.654 INFO kablam! 
Sep 21 02:53:13.654 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:53:13.654 INFO kablam!    --> src/database.rs:291:25
Sep 21 02:53:13.654 INFO kablam!     |
Sep 21 02:53:13.654 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 21 02:53:13.654 INFO kablam!     |                         ----^^^
Sep 21 02:53:13.654 INFO kablam!     |                         |
Sep 21 02:53:13.654 INFO kablam!     |                         help: remove this `mut`
Sep 21 02:53:13.654 INFO kablam! 
Sep 21 02:53:14.002 INFO kablam!     Finished dev [optimized + debuginfo] target(s) in 10.01s
Sep 21 02:53:14.004 INFO kablam! su: No module specific data is present
Sep 21 02:53:15.160 INFO running `"docker" "rm" "-f" "f32cdaf373e3f18454721606fd9bb528343191fecfd0043fcb052bb1f6c48487"`
Sep 21 02:53:15.273 INFO blam! f32cdaf373e3f18454721606fd9bb528343191fecfd0043fcb052bb1f6c48487