Dec 12 07:20:37.275 INFO checking smetamath-3.0.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 07:20:37.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 07:20:37.766 INFO [stdout] 4b7f9d7a07003a30f03d13cf53e3e2696b067cbed9463afb040a0579117a3625
Dec 12 07:20:37.768 INFO running `"docker" "start" "-a" "4b7f9d7a07003a30f03d13cf53e3e2696b067cbed9463afb040a0579117a3625"`
Dec 12 07:20:39.548 INFO [stderr] usermod: no changes
Dec 12 07:20:39.686 INFO [stderr]    Compiling libc v0.2.45
Dec 12 07:20:39.686 INFO [stderr]     Checking unicode-width v0.1.5
Dec 12 07:20:39.686 INFO [stderr]     Checking strsim v0.7.0
Dec 12 07:20:39.686 INFO [stderr]     Checking cfg-if v0.1.6
Dec 12 07:20:39.705 INFO [stderr]     Checking vec_map v0.8.1
Dec 12 07:20:39.705 INFO [stderr]     Checking bitflags v1.0.4
Dec 12 07:20:39.706 INFO [stderr]     Checking ansi_term v0.11.0
Dec 12 07:20:39.706 INFO [stderr]     Checking fnv v1.0.6
Dec 12 07:20:40.709 INFO [stderr]     Checking textwrap v0.10.0
Dec 12 07:20:46.144 INFO [stderr]     Checking atty v0.2.11
Dec 12 07:20:46.144 INFO [stderr]     Checking filetime v0.1.15
Dec 12 07:20:46.930 INFO [stderr]     Checking clap v2.32.0
Dec 12 07:20:51.801 INFO [stderr]     Checking smetamath v3.0.0 (/source)
Dec 12 07:20:55.188 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.188 INFO [stderr]    --> src/database.rs:247:25
Dec 12 07:20:55.188 INFO [stderr]     |
Dec 12 07:20:55.188 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 12 07:20:55.188 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.188 INFO [stderr]     |                         |
Dec 12 07:20:55.188 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.188 INFO [stderr]     |
Dec 12 07:20:55.188 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:20:55.188 INFO [stderr] 
Dec 12 07:20:55.188 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.188 INFO [stderr]    --> src/database.rs:247:25
Dec 12 07:20:55.188 INFO [stderr]     |
Dec 12 07:20:55.188 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 12 07:20:55.188 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.188 INFO [stderr]     |                         |
Dec 12 07:20:55.188 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.188 INFO [stderr] 
Dec 12 07:20:55.190 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.190 INFO [stderr]    --> src/database.rs:268:25
Dec 12 07:20:55.190 INFO [stderr]     |
Dec 12 07:20:55.190 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 12 07:20:55.190 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.190 INFO [stderr]     |                         |
Dec 12 07:20:55.190 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.190 INFO [stderr] 
Dec 12 07:20:55.192 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.192 INFO [stderr]    --> src/database.rs:291:25
Dec 12 07:20:55.192 INFO [stderr]     |
Dec 12 07:20:55.192 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 12 07:20:55.192 INFO [stderr]     |                         ----^^^
Dec 12 07:20:55.192 INFO [stderr]     |                         |
Dec 12 07:20:55.192 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.192 INFO [stderr] 
Dec 12 07:20:55.383 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.383 INFO [stderr]    --> src/database.rs:247:25
Dec 12 07:20:55.383 INFO [stderr]     |
Dec 12 07:20:55.383 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 12 07:20:55.383 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.383 INFO [stderr]     |                         |
Dec 12 07:20:55.383 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.383 INFO [stderr]     |
Dec 12 07:20:55.383 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:20:55.383 INFO [stderr] 
Dec 12 07:20:55.383 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.383 INFO [stderr]    --> src/database.rs:247:25
Dec 12 07:20:55.383 INFO [stderr]     |
Dec 12 07:20:55.383 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 12 07:20:55.383 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.383 INFO [stderr]     |                         |
Dec 12 07:20:55.383 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.383 INFO [stderr] 
Dec 12 07:20:55.383 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.383 INFO [stderr]    --> src/database.rs:268:25
Dec 12 07:20:55.383 INFO [stderr]     |
Dec 12 07:20:55.383 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 12 07:20:55.383 INFO [stderr]     |                         ----^^
Dec 12 07:20:55.383 INFO [stderr]     |                         |
Dec 12 07:20:55.383 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.383 INFO [stderr] 
Dec 12 07:20:55.388 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:20:55.388 INFO [stderr]    --> src/database.rs:291:25
Dec 12 07:20:55.388 INFO [stderr]     |
Dec 12 07:20:55.388 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 12 07:20:55.388 INFO [stderr]     |                         ----^^^
Dec 12 07:20:55.388 INFO [stderr]     |                         |
Dec 12 07:20:55.388 INFO [stderr]     |                         help: remove this `mut`
Dec 12 07:20:55.388 INFO [stderr] 
Dec 12 07:20:55.891 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 16.31s
Dec 12 07:20:55.896 INFO [stderr] su: No module specific data is present
Dec 12 07:20:56.997 INFO running `"docker" "inspect" "4b7f9d7a07003a30f03d13cf53e3e2696b067cbed9463afb040a0579117a3625"`
Dec 12 07:20:57.296 INFO running `"docker" "rm" "-f" "4b7f9d7a07003a30f03d13cf53e3e2696b067cbed9463afb040a0579117a3625"`
Dec 12 07:20:57.584 INFO [stdout] 4b7f9d7a07003a30f03d13cf53e3e2696b067cbed9463afb040a0579117a3625