Dec 05 06:30:58.173 INFO checking smetamath-3.0.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:30:58.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 06:30:58.764 INFO [stdout] 4975076643df0fb82466860662ac14375bcdcd825318f0458983e86e462bd74d
Dec 05 06:30:58.766 INFO running `"docker" "start" "-a" "4975076643df0fb82466860662ac14375bcdcd825318f0458983e86e462bd74d"`
Dec 05 06:31:00.527 INFO [stderr] usermod: no changes
Dec 05 06:31:00.626 INFO [stderr]    Compiling libc v0.2.44
Dec 05 06:31:00.626 INFO [stderr]     Checking unicode-width v0.1.5
Dec 05 06:31:00.626 INFO [stderr]     Checking bitflags v1.0.4
Dec 05 06:31:00.626 INFO [stderr]     Checking vec_map v0.8.1
Dec 05 06:31:00.626 INFO [stderr]     Checking ansi_term v0.11.0
Dec 05 06:31:00.633 INFO [stderr]     Checking strsim v0.7.0
Dec 05 06:31:00.633 INFO [stderr]     Checking cfg-if v0.1.6
Dec 05 06:31:00.633 INFO [stderr]     Checking fnv v1.0.6
Dec 05 06:31:01.667 INFO [stderr]     Checking textwrap v0.10.0
Dec 05 06:31:06.852 INFO [stderr]     Checking atty v0.2.11
Dec 05 06:31:06.860 INFO [stderr]     Checking filetime v0.1.15
Dec 05 06:31:07.736 INFO [stderr]     Checking clap v2.32.0
Dec 05 06:31:12.387 INFO [stderr]     Checking smetamath v3.0.0 (/source)
Dec 05 06:31:15.819 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:15.819 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:31:15.820 INFO [stderr]     |
Dec 05 06:31:15.820 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:31:15.820 INFO [stderr]     |                         ----^^
Dec 05 06:31:15.821 INFO [stderr]     |                         |
Dec 05 06:31:15.821 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:15.821 INFO [stderr]     |
Dec 05 06:31:15.822 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:31:15.822 INFO [stderr] 
Dec 05 06:31:15.822 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:15.822 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:31:15.823 INFO [stderr]     |
Dec 05 06:31:15.823 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:31:15.823 INFO [stderr]     |                         ----^^
Dec 05 06:31:15.823 INFO [stderr]     |                         |
Dec 05 06:31:15.824 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:15.824 INFO [stderr] 
Dec 05 06:31:15.824 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:15.824 INFO [stderr]    --> src/database.rs:268:25
Dec 05 06:31:15.824 INFO [stderr]     |
Dec 05 06:31:15.824 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 05 06:31:15.824 INFO [stderr]     |                         ----^^
Dec 05 06:31:15.824 INFO [stderr]     |                         |
Dec 05 06:31:15.824 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:15.824 INFO [stderr] 
Dec 05 06:31:15.824 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:15.824 INFO [stderr]    --> src/database.rs:291:25
Dec 05 06:31:15.824 INFO [stderr]     |
Dec 05 06:31:15.824 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 05 06:31:15.824 INFO [stderr]     |                         ----^^^
Dec 05 06:31:15.824 INFO [stderr]     |                         |
Dec 05 06:31:15.824 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:15.824 INFO [stderr] 
Dec 05 06:31:16.075 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:16.075 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:31:16.075 INFO [stderr]     |
Dec 05 06:31:16.076 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:31:16.076 INFO [stderr]     |                         ----^^
Dec 05 06:31:16.076 INFO [stderr]     |                         |
Dec 05 06:31:16.076 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:16.076 INFO [stderr]     |
Dec 05 06:31:16.076 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:31:16.077 INFO [stderr] 
Dec 05 06:31:16.077 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:16.077 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:31:16.077 INFO [stderr]     |
Dec 05 06:31:16.077 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:31:16.077 INFO [stderr]     |                         ----^^
Dec 05 06:31:16.077 INFO [stderr]     |                         |
Dec 05 06:31:16.077 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:16.077 INFO [stderr] 
Dec 05 06:31:16.079 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:16.079 INFO [stderr]    --> src/database.rs:268:25
Dec 05 06:31:16.079 INFO [stderr]     |
Dec 05 06:31:16.079 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 05 06:31:16.079 INFO [stderr]     |                         ----^^
Dec 05 06:31:16.079 INFO [stderr]     |                         |
Dec 05 06:31:16.079 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:16.079 INFO [stderr] 
Dec 05 06:31:16.080 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:31:16.081 INFO [stderr]    --> src/database.rs:291:25
Dec 05 06:31:16.081 INFO [stderr]     |
Dec 05 06:31:16.081 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 05 06:31:16.081 INFO [stderr]     |                         ----^^^
Dec 05 06:31:16.081 INFO [stderr]     |                         |
Dec 05 06:31:16.081 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:31:16.081 INFO [stderr] 
Dec 05 06:31:16.564 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 16.01s
Dec 05 06:31:16.568 INFO [stderr] su: No module specific data is present
Dec 05 06:31:17.656 INFO running `"docker" "inspect" "4975076643df0fb82466860662ac14375bcdcd825318f0458983e86e462bd74d"`
Dec 05 06:31:17.979 INFO running `"docker" "rm" "-f" "4975076643df0fb82466860662ac14375bcdcd825318f0458983e86e462bd74d"`
Dec 05 06:31:18.270 INFO [stdout] 4975076643df0fb82466860662ac14375bcdcd825318f0458983e86e462bd74d