Nov 28 17:51:08.308 INFO checking smetamath-3.0.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 17:51:08.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 17:51:08.836 INFO [stdout] 7e596fc545e1f1d69d2f412abb2d1d4ec169287eeb97335186be091752143d9d
Nov 28 17:51:08.841 INFO running `"docker" "start" "-a" "7e596fc545e1f1d69d2f412abb2d1d4ec169287eeb97335186be091752143d9d"`
Nov 28 17:51:10.428 INFO [stderr] usermod: no changes
Nov 28 17:51:10.544 INFO [stderr]    Compiling libc v0.2.44
Nov 28 17:51:10.544 INFO [stderr]     Checking bitflags v1.0.4
Nov 28 17:51:10.544 INFO [stderr]     Checking ansi_term v0.11.0
Nov 28 17:51:10.548 INFO [stderr]     Checking cfg-if v0.1.6
Nov 28 17:51:10.548 INFO [stderr]     Checking vec_map v0.8.1
Nov 28 17:51:10.565 INFO [stderr]     Checking strsim v0.7.0
Nov 28 17:51:10.565 INFO [stderr]     Checking fnv v1.0.6
Nov 28 17:51:10.566 INFO [stderr]     Checking textwrap v0.10.0
Nov 28 17:51:17.113 INFO [stderr]     Checking atty v0.2.11
Nov 28 17:51:17.116 INFO [stderr]     Checking filetime v0.1.15
Nov 28 17:51:17.966 INFO [stderr]     Checking clap v2.32.0
Nov 28 17:51:23.378 INFO [stderr]     Checking smetamath v3.0.0 (/source)
Nov 28 17:51:26.532 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.532 INFO [stderr]    --> src/database.rs:247:25
Nov 28 17:51:26.532 INFO [stderr]     |
Nov 28 17:51:26.532 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 28 17:51:26.532 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.532 INFO [stderr]     |                         |
Nov 28 17:51:26.532 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.532 INFO [stderr]     |
Nov 28 17:51:26.532 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:51:26.532 INFO [stderr] 
Nov 28 17:51:26.532 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.532 INFO [stderr]    --> src/database.rs:247:25
Nov 28 17:51:26.532 INFO [stderr]     |
Nov 28 17:51:26.532 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 28 17:51:26.532 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.532 INFO [stderr]     |                         |
Nov 28 17:51:26.532 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.532 INFO [stderr] 
Nov 28 17:51:26.544 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.544 INFO [stderr]    --> src/database.rs:268:25
Nov 28 17:51:26.544 INFO [stderr]     |
Nov 28 17:51:26.544 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Nov 28 17:51:26.544 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.544 INFO [stderr]     |                         |
Nov 28 17:51:26.544 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.544 INFO [stderr] 
Nov 28 17:51:26.545 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.545 INFO [stderr]    --> src/database.rs:291:25
Nov 28 17:51:26.545 INFO [stderr]     |
Nov 28 17:51:26.545 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Nov 28 17:51:26.545 INFO [stderr]     |                         ----^^^
Nov 28 17:51:26.545 INFO [stderr]     |                         |
Nov 28 17:51:26.545 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.545 INFO [stderr] 
Nov 28 17:51:26.808 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.808 INFO [stderr]    --> src/database.rs:247:25
Nov 28 17:51:26.808 INFO [stderr]     |
Nov 28 17:51:26.808 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 28 17:51:26.808 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.808 INFO [stderr]     |                         |
Nov 28 17:51:26.808 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.808 INFO [stderr]     |
Nov 28 17:51:26.808 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:51:26.808 INFO [stderr] 
Nov 28 17:51:26.808 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.808 INFO [stderr]    --> src/database.rs:247:25
Nov 28 17:51:26.808 INFO [stderr]     |
Nov 28 17:51:26.808 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Nov 28 17:51:26.808 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.808 INFO [stderr]     |                         |
Nov 28 17:51:26.808 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.808 INFO [stderr] 
Nov 28 17:51:26.812 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.812 INFO [stderr]    --> src/database.rs:268:25
Nov 28 17:51:26.812 INFO [stderr]     |
Nov 28 17:51:26.812 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Nov 28 17:51:26.812 INFO [stderr]     |                         ----^^
Nov 28 17:51:26.812 INFO [stderr]     |                         |
Nov 28 17:51:26.812 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.812 INFO [stderr] 
Nov 28 17:51:26.812 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:51:26.812 INFO [stderr]    --> src/database.rs:291:25
Nov 28 17:51:26.812 INFO [stderr]     |
Nov 28 17:51:26.812 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Nov 28 17:51:26.812 INFO [stderr]     |                         ----^^^
Nov 28 17:51:26.812 INFO [stderr]     |                         |
Nov 28 17:51:26.812 INFO [stderr]     |                         help: remove this `mut`
Nov 28 17:51:26.812 INFO [stderr] 
Nov 28 17:51:27.296 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 16.84s
Nov 28 17:51:27.298 INFO [stderr] su: No module specific data is present
Nov 28 17:51:27.948 INFO running `"docker" "inspect" "7e596fc545e1f1d69d2f412abb2d1d4ec169287eeb97335186be091752143d9d"`
Nov 28 17:51:28.280 INFO running `"docker" "rm" "-f" "7e596fc545e1f1d69d2f412abb2d1d4ec169287eeb97335186be091752143d9d"`
Nov 28 17:51:28.633 INFO [stdout] 7e596fc545e1f1d69d2f412abb2d1d4ec169287eeb97335186be091752143d9d