Nov 04 17:26:09.295 INFO checking smetamath-3.0.0 against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 17:26:09.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-2/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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"`
Nov 04 17:26:09.813 INFO blam! da82cc9a3a7216a37def611fe0da410f92b0ef023db30da5db0abf534b3ff90c
Nov 04 17:26:09.816 INFO running `"docker" "start" "-a" "da82cc9a3a7216a37def611fe0da410f92b0ef023db30da5db0abf534b3ff90c"`
Nov 04 17:26:11.983 INFO kablam! usermod: no changes
Nov 04 17:26:12.063 INFO kablam!     Checking unicode-width v0.1.5
Nov 04 17:26:12.063 INFO kablam!     Checking libc v0.2.43
Nov 04 17:26:12.071 INFO kablam!     Checking strsim v0.7.0
Nov 04 17:26:12.071 INFO kablam!     Checking ansi_term v0.11.0
Nov 04 17:26:12.071 INFO kablam!     Checking vec_map v0.8.1
Nov 04 17:26:12.071 INFO kablam!     Checking bitflags v1.0.4
Nov 04 17:26:12.071 INFO kablam!     Checking cfg-if v0.1.6
Nov 04 17:26:12.071 INFO kablam!     Checking fnv v1.0.6
Nov 04 17:26:13.083 INFO kablam!     Checking textwrap v0.10.0
Nov 04 17:26:16.899 INFO kablam!     Checking atty v0.2.11
Nov 04 17:26:16.899 INFO kablam!     Checking filetime v0.1.15
Nov 04 17:26:17.820 INFO kablam!     Checking clap v2.32.0
Nov 04 17:26:22.945 INFO kablam!     Checking smetamath v3.0.0 (/source)
Nov 04 17:26:26.195 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.195 INFO kablam!    --> src/database.rs:247:25
Nov 04 17:26:26.195 INFO kablam!     |
Nov 04 17:26:26.195 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 04 17:26:26.195 INFO kablam!     |                         ----^^
Nov 04 17:26:26.203 INFO kablam!     |                         |
Nov 04 17:26:26.203 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.203 INFO kablam!     |
Nov 04 17:26:26.204 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 17:26:26.204 INFO kablam! 
Nov 04 17:26:26.204 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.205 INFO kablam!    --> src/database.rs:247:25
Nov 04 17:26:26.205 INFO kablam!     |
Nov 04 17:26:26.205 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 04 17:26:26.206 INFO kablam!     |                         ----^^
Nov 04 17:26:26.206 INFO kablam!     |                         |
Nov 04 17:26:26.206 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.206 INFO kablam! 
Nov 04 17:26:26.208 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.208 INFO kablam!    --> src/database.rs:268:25
Nov 04 17:26:26.208 INFO kablam!     |
Nov 04 17:26:26.209 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Nov 04 17:26:26.209 INFO kablam!     |                         ----^^
Nov 04 17:26:26.209 INFO kablam!     |                         |
Nov 04 17:26:26.209 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.210 INFO kablam! 
Nov 04 17:26:26.212 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.212 INFO kablam!    --> src/database.rs:291:25
Nov 04 17:26:26.213 INFO kablam!     |
Nov 04 17:26:26.213 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Nov 04 17:26:26.213 INFO kablam!     |                         ----^^^
Nov 04 17:26:26.213 INFO kablam!     |                         |
Nov 04 17:26:26.214 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.214 INFO kablam! 
Nov 04 17:26:26.731 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.731 INFO kablam!    --> src/database.rs:247:25
Nov 04 17:26:26.731 INFO kablam!     |
Nov 04 17:26:26.731 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 04 17:26:26.731 INFO kablam!     |                         ----^^
Nov 04 17:26:26.731 INFO kablam!     |                         |
Nov 04 17:26:26.731 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.731 INFO kablam!     |
Nov 04 17:26:26.731 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 04 17:26:26.731 INFO kablam! 
Nov 04 17:26:26.731 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.731 INFO kablam!    --> src/database.rs:247:25
Nov 04 17:26:26.731 INFO kablam!     |
Nov 04 17:26:26.731 INFO kablam! 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 04 17:26:26.731 INFO kablam!     |                         ----^^
Nov 04 17:26:26.731 INFO kablam!     |                         |
Nov 04 17:26:26.731 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.731 INFO kablam! 
Nov 04 17:26:26.731 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.731 INFO kablam!    --> src/database.rs:268:25
Nov 04 17:26:26.731 INFO kablam!     |
Nov 04 17:26:26.731 INFO kablam! 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Nov 04 17:26:26.731 INFO kablam!     |                         ----^^
Nov 04 17:26:26.731 INFO kablam!     |                         |
Nov 04 17:26:26.731 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.731 INFO kablam! 
Nov 04 17:26:26.731 INFO kablam! warning: variable does not need to be mutable
Nov 04 17:26:26.731 INFO kablam!    --> src/database.rs:291:25
Nov 04 17:26:26.731 INFO kablam!     |
Nov 04 17:26:26.731 INFO kablam! 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Nov 04 17:26:26.731 INFO kablam!     |                         ----^^^
Nov 04 17:26:26.731 INFO kablam!     |                         |
Nov 04 17:26:26.731 INFO kablam!     |                         help: remove this `mut`
Nov 04 17:26:26.731 INFO kablam! 
Nov 04 17:26:27.348 INFO kablam!     Finished dev [optimized + debuginfo] target(s) in 15.35s
Nov 04 17:26:27.359 INFO kablam! su: No module specific data is present
Nov 04 17:26:29.043 INFO running `"docker" "rm" "-f" "da82cc9a3a7216a37def611fe0da410f92b0ef023db30da5db0abf534b3ff90c"`
Nov 04 17:26:29.495 INFO blam! da82cc9a3a7216a37def611fe0da410f92b0ef023db30da5db0abf534b3ff90c