Sep 05 23:49:33.071 INFO checking smetamath-3.0.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 23:49:33.071 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 23:49:33.071 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 23:49:33.360 INFO blam! 27f75df84fc45dbe549e8b55386cbc3c2eb53fbc4468e7999df32df7b6288f67
Sep 05 23:49:33.362 INFO running `"docker" "start" "-a" "27f75df84fc45dbe549e8b55386cbc3c2eb53fbc4468e7999df32df7b6288f67"`
Sep 05 23:49:34.424 INFO kablam! usermod: no changes
Sep 05 23:49:34.530 INFO kablam!     Checking unicode-width v0.1.5
Sep 05 23:49:34.531 INFO kablam!     Checking libc v0.2.43
Sep 05 23:49:34.531 INFO kablam!     Checking cfg-if v0.1.5
Sep 05 23:49:34.531 INFO kablam!     Checking bitflags v1.0.4
Sep 05 23:49:34.531 INFO kablam!     Checking strsim v0.7.0
Sep 05 23:49:34.531 INFO kablam!     Checking vec_map v0.8.1
Sep 05 23:49:34.536 INFO kablam!     Checking ansi_term v0.11.0
Sep 05 23:49:34.536 INFO kablam!     Checking fnv v1.0.6
Sep 05 23:49:35.166 INFO kablam!     Checking textwrap v0.10.0
Sep 05 23:49:36.934 INFO kablam!     Checking atty v0.2.11
Sep 05 23:49:36.934 INFO kablam!     Checking filetime v0.1.15
Sep 05 23:49:37.343 INFO kablam!     Checking clap v2.32.0
Sep 05 23:49:42.306 INFO kablam!     Checking smetamath v3.0.0 (file:///source)
Sep 05 23:49:43.673 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.673 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:43.673 INFO kablam!     |
Sep 05 23:49:43.673 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:43.673 INFO kablam!     |                         ----^^
Sep 05 23:49:43.673 INFO kablam!     |                         |
Sep 05 23:49:43.673 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.673 INFO kablam!     |
Sep 05 23:49:43.673 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 05 23:49:43.673 INFO kablam! 
Sep 05 23:49:43.673 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.673 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:43.673 INFO kablam!     |
Sep 05 23:49:43.673 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:43.673 INFO kablam!     |                         ----^^
Sep 05 23:49:43.673 INFO kablam!     |                         |
Sep 05 23:49:43.673 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.673 INFO kablam! 
Sep 05 23:49:43.674 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.674 INFO kablam!    --> src/database.rs:268:25
Sep 05 23:49:43.674 INFO kablam!     |
Sep 05 23:49:43.674 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 05 23:49:43.674 INFO kablam!     |                         ----^^
Sep 05 23:49:43.674 INFO kablam!     |                         |
Sep 05 23:49:43.674 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.674 INFO kablam! 
Sep 05 23:49:43.676 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.676 INFO kablam!    --> src/database.rs:291:25
Sep 05 23:49:43.676 INFO kablam!     |
Sep 05 23:49:43.676 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 05 23:49:43.676 INFO kablam!     |                         ----^^^
Sep 05 23:49:43.676 INFO kablam!     |                         |
Sep 05 23:49:43.676 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.676 INFO kablam! 
Sep 05 23:49:43.834 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.834 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:43.834 INFO kablam!     |
Sep 05 23:49:43.834 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:43.834 INFO kablam!     |                         ----^^
Sep 05 23:49:43.834 INFO kablam!     |                         |
Sep 05 23:49:43.834 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.834 INFO kablam!     |
Sep 05 23:49:43.834 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 05 23:49:43.834 INFO kablam! 
Sep 05 23:49:43.834 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.834 INFO kablam!    --> src/database.rs:247:25
Sep 05 23:49:43.834 INFO kablam!     |
Sep 05 23:49:43.834 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Sep 05 23:49:43.834 INFO kablam!     |                         ----^^
Sep 05 23:49:43.834 INFO kablam!     |                         |
Sep 05 23:49:43.834 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.834 INFO kablam! 
Sep 05 23:49:43.834 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.834 INFO kablam!    --> src/database.rs:268:25
Sep 05 23:49:43.834 INFO kablam!     |
Sep 05 23:49:43.834 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Sep 05 23:49:43.834 INFO kablam!     |                         ----^^
Sep 05 23:49:43.834 INFO kablam!     |                         |
Sep 05 23:49:43.834 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.834 INFO kablam! 
Sep 05 23:49:43.834 INFO kablam! warning: variable does not need to be mutable
Sep 05 23:49:43.834 INFO kablam!    --> src/database.rs:291:25
Sep 05 23:49:43.834 INFO kablam!     |
Sep 05 23:49:43.834 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Sep 05 23:49:43.834 INFO kablam!     |                         ----^^^
Sep 05 23:49:43.834 INFO kablam!     |                         |
Sep 05 23:49:43.834 INFO kablam!     |                         help: remove this `mut`
Sep 05 23:49:43.834 INFO kablam! 
Sep 05 23:49:44.226 INFO kablam!     Finished dev [optimized + debuginfo] target(s) in 9.77s
Sep 05 23:49:44.226 INFO kablam! su: No module specific data is present
Sep 05 23:49:45.157 INFO running `"docker" "rm" "-f" "27f75df84fc45dbe549e8b55386cbc3c2eb53fbc4468e7999df32df7b6288f67"`
Sep 05 23:49:45.283 INFO blam! 27f75df84fc45dbe549e8b55386cbc3c2eb53fbc4468e7999df32df7b6288f67