Dec 05 06:30:30.592 INFO checking smetamath-3.0.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:30:30.592 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 06:30:31.189 INFO [stdout] 3eb480775ab2b4bd3df91d29621ce7da16f4a4abcb1ab252737f8b47b2c413a9
Dec 05 06:30:31.197 INFO running `"docker" "start" "-a" "3eb480775ab2b4bd3df91d29621ce7da16f4a4abcb1ab252737f8b47b2c413a9"`
Dec 05 06:30:33.399 INFO [stderr] usermod: no changes
Dec 05 06:30:33.544 INFO [stderr]    Compiling libc v0.2.44
Dec 05 06:30:33.544 INFO [stderr]     Checking unicode-width v0.1.5
Dec 05 06:30:33.551 INFO [stderr]     Checking strsim v0.7.0
Dec 05 06:30:33.551 INFO [stderr]     Checking cfg-if v0.1.6
Dec 05 06:30:33.551 INFO [stderr]     Checking ansi_term v0.11.0
Dec 05 06:30:33.551 INFO [stderr]     Checking vec_map v0.8.1
Dec 05 06:30:33.551 INFO [stderr]     Checking bitflags v1.0.4
Dec 05 06:30:33.551 INFO [stderr]     Checking fnv v1.0.6
Dec 05 06:30:34.698 INFO [stderr]     Checking textwrap v0.10.0
Dec 05 06:30:40.168 INFO [stderr]     Checking atty v0.2.11
Dec 05 06:30:40.170 INFO [stderr]     Checking filetime v0.1.15
Dec 05 06:30:41.089 INFO [stderr]     Checking clap v2.32.0
Dec 05 06:30:45.602 INFO [stderr]     Checking smetamath v3.0.0 (/source)
Dec 05 06:30:48.891 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:48.891 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:30:48.892 INFO [stderr]     |
Dec 05 06:30:48.892 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:30:48.892 INFO [stderr]     |                         ----^^
Dec 05 06:30:48.893 INFO [stderr]     |                         |
Dec 05 06:30:48.893 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:48.893 INFO [stderr]     |
Dec 05 06:30:48.894 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:30:48.894 INFO [stderr] 
Dec 05 06:30:48.894 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:48.894 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:30:48.894 INFO [stderr]     |
Dec 05 06:30:48.894 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:30:48.894 INFO [stderr]     |                         ----^^
Dec 05 06:30:48.894 INFO [stderr]     |                         |
Dec 05 06:30:48.894 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:48.895 INFO [stderr] 
Dec 05 06:30:48.897 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:48.897 INFO [stderr]    --> src/database.rs:268:25
Dec 05 06:30:48.897 INFO [stderr]     |
Dec 05 06:30:48.897 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 05 06:30:48.897 INFO [stderr]     |                         ----^^
Dec 05 06:30:48.897 INFO [stderr]     |                         |
Dec 05 06:30:48.897 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:48.897 INFO [stderr] 
Dec 05 06:30:48.899 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:48.899 INFO [stderr]    --> src/database.rs:291:25
Dec 05 06:30:48.899 INFO [stderr]     |
Dec 05 06:30:48.899 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 05 06:30:48.899 INFO [stderr]     |                         ----^^^
Dec 05 06:30:48.899 INFO [stderr]     |                         |
Dec 05 06:30:48.899 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:48.900 INFO [stderr] 
Dec 05 06:30:49.015 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:49.015 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:30:49.015 INFO [stderr]     |
Dec 05 06:30:49.015 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:30:49.015 INFO [stderr]     |                         ----^^
Dec 05 06:30:49.015 INFO [stderr]     |                         |
Dec 05 06:30:49.015 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:49.015 INFO [stderr]     |
Dec 05 06:30:49.015 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:30:49.015 INFO [stderr] 
Dec 05 06:30:49.019 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:49.019 INFO [stderr]    --> src/database.rs:247:25
Dec 05 06:30:49.019 INFO [stderr]     |
Dec 05 06:30:49.019 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 05 06:30:49.019 INFO [stderr]     |                         ----^^
Dec 05 06:30:49.019 INFO [stderr]     |                         |
Dec 05 06:30:49.019 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:49.019 INFO [stderr] 
Dec 05 06:30:49.019 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:49.019 INFO [stderr]    --> src/database.rs:268:25
Dec 05 06:30:49.019 INFO [stderr]     |
Dec 05 06:30:49.019 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 05 06:30:49.019 INFO [stderr]     |                         ----^^
Dec 05 06:30:49.019 INFO [stderr]     |                         |
Dec 05 06:30:49.019 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:49.019 INFO [stderr] 
Dec 05 06:30:49.019 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:30:49.019 INFO [stderr]    --> src/database.rs:291:25
Dec 05 06:30:49.019 INFO [stderr]     |
Dec 05 06:30:49.019 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 05 06:30:49.019 INFO [stderr]     |                         ----^^^
Dec 05 06:30:49.019 INFO [stderr]     |                         |
Dec 05 06:30:49.019 INFO [stderr]     |                         help: remove this `mut`
Dec 05 06:30:49.019 INFO [stderr] 
Dec 05 06:30:49.632 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 16.20s
Dec 05 06:30:49.643 INFO [stderr] su: No module specific data is present
Dec 05 06:30:51.563 INFO running `"docker" "inspect" "3eb480775ab2b4bd3df91d29621ce7da16f4a4abcb1ab252737f8b47b2c413a9"`
Dec 05 06:30:51.951 INFO running `"docker" "rm" "-f" "3eb480775ab2b4bd3df91d29621ce7da16f4a4abcb1ab252737f8b47b2c413a9"`
Dec 05 06:30:52.347 INFO [stdout] 3eb480775ab2b4bd3df91d29621ce7da16f4a4abcb1ab252737f8b47b2c413a9