Dec 06 22:27:41.639 INFO testing smetamath-3.0.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 22:27:41.640 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 22:27:42.098 INFO [stdout] 82c06fa080e8310e97350a5bce8dafe9b0418dcef7d6f29e122605bafc5e8e50
Dec 06 22:27:42.099 INFO running `"docker" "start" "-a" "82c06fa080e8310e97350a5bce8dafe9b0418dcef7d6f29e122605bafc5e8e50"`
Dec 06 22:27:43.908 INFO [stderr] usermod: no changes
Dec 06 22:27:44.072 INFO [stderr]    Compiling libc v0.2.44
Dec 06 22:27:44.072 INFO [stderr]    Compiling bitflags v1.0.4
Dec 06 22:27:44.087 INFO [stderr]    Compiling cfg-if v0.1.6
Dec 06 22:27:44.096 INFO [stderr]    Compiling vec_map v0.8.1
Dec 06 22:27:44.096 INFO [stderr]    Compiling ansi_term v0.11.0
Dec 06 22:27:44.096 INFO [stderr]    Compiling strsim v0.7.0
Dec 06 22:27:44.096 INFO [stderr]    Compiling fnv v1.0.6
Dec 06 22:27:44.096 INFO [stderr]    Compiling textwrap v0.10.0
Dec 06 22:27:51.129 INFO [stderr]    Compiling atty v0.2.11
Dec 06 22:27:51.130 INFO [stderr]    Compiling filetime v0.1.15
Dec 06 22:27:52.098 INFO [stderr]    Compiling clap v2.32.0
Dec 06 22:28:32.102 INFO [stderr]    Compiling smetamath v3.0.0 (/source)
Dec 06 22:28:34.162 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:28:34.163 INFO [stderr]    --> src/database.rs:247:25
Dec 06 22:28:34.163 INFO [stderr]     |
Dec 06 22:28:34.163 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 06 22:28:34.163 INFO [stderr]     |                         ----^^
Dec 06 22:28:34.163 INFO [stderr]     |                         |
Dec 06 22:28:34.163 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:28:34.163 INFO [stderr]     |
Dec 06 22:28:34.163 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 22:28:34.164 INFO [stderr] 
Dec 06 22:28:34.164 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:28:34.164 INFO [stderr]    --> src/database.rs:247:25
Dec 06 22:28:34.164 INFO [stderr]     |
Dec 06 22:28:34.164 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 06 22:28:34.164 INFO [stderr]     |                         ----^^
Dec 06 22:28:34.164 INFO [stderr]     |                         |
Dec 06 22:28:34.164 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:28:34.164 INFO [stderr] 
Dec 06 22:28:34.165 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:28:34.166 INFO [stderr]    --> src/database.rs:268:25
Dec 06 22:28:34.166 INFO [stderr]     |
Dec 06 22:28:34.166 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 06 22:28:34.166 INFO [stderr]     |                         ----^^
Dec 06 22:28:34.166 INFO [stderr]     |                         |
Dec 06 22:28:34.166 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:28:34.167 INFO [stderr] 
Dec 06 22:28:34.168 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:28:34.168 INFO [stderr]    --> src/database.rs:291:25
Dec 06 22:28:34.168 INFO [stderr]     |
Dec 06 22:28:34.169 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 06 22:28:34.169 INFO [stderr]     |                         ----^^^
Dec 06 22:28:34.169 INFO [stderr]     |                         |
Dec 06 22:28:34.169 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:28:34.169 INFO [stderr] 
Dec 06 22:29:00.556 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 1m 16s
Dec 06 22:29:00.563 INFO [stderr] su: No module specific data is present
Dec 06 22:29:00.976 INFO running `"docker" "inspect" "82c06fa080e8310e97350a5bce8dafe9b0418dcef7d6f29e122605bafc5e8e50"`
Dec 06 22:29:01.131 INFO running `"docker" "rm" "-f" "82c06fa080e8310e97350a5bce8dafe9b0418dcef7d6f29e122605bafc5e8e50"`
Dec 06 22:29:01.250 INFO [stdout] 82c06fa080e8310e97350a5bce8dafe9b0418dcef7d6f29e122605bafc5e8e50
Dec 06 22:29:01.254 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 22:29:01.528 INFO [stdout] ef3c1346bce76cfd138af7e2a6ac0df20eb1d2e0c13978c16ee0c790edae3aea
Dec 06 22:29:01.534 INFO running `"docker" "start" "-a" "ef3c1346bce76cfd138af7e2a6ac0df20eb1d2e0c13978c16ee0c790edae3aea"`
Dec 06 22:29:02.424 INFO [stderr] usermod: no changes
Dec 06 22:29:02.482 INFO [stderr]    Compiling smetamath v3.0.0 (/source)
Dec 06 22:29:04.408 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:29:04.408 INFO [stderr]    --> src/database.rs:247:25
Dec 06 22:29:04.408 INFO [stderr]     |
Dec 06 22:29:04.408 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 06 22:29:04.408 INFO [stderr]     |                         ----^^
Dec 06 22:29:04.408 INFO [stderr]     |                         |
Dec 06 22:29:04.408 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:29:04.408 INFO [stderr]     |
Dec 06 22:29:04.408 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 22:29:04.408 INFO [stderr] 
Dec 06 22:29:04.408 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:29:04.408 INFO [stderr]    --> src/database.rs:247:25
Dec 06 22:29:04.408 INFO [stderr]     |
Dec 06 22:29:04.408 INFO [stderr] 247 |                     let mut ns = Arc::make_mut(self.prev_nameset.as_mut().unwrap());
Dec 06 22:29:04.408 INFO [stderr]     |                         ----^^
Dec 06 22:29:04.408 INFO [stderr]     |                         |
Dec 06 22:29:04.408 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:29:04.408 INFO [stderr] 
Dec 06 22:29:04.408 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:29:04.408 INFO [stderr]    --> src/database.rs:268:25
Dec 06 22:29:04.408 INFO [stderr]     |
Dec 06 22:29:04.408 INFO [stderr] 268 |                     let mut ns = Arc::make_mut(self.prev_scopes.as_mut().unwrap());
Dec 06 22:29:04.408 INFO [stderr]     |                         ----^^
Dec 06 22:29:04.409 INFO [stderr]     |                         |
Dec 06 22:29:04.409 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:29:04.409 INFO [stderr] 
Dec 06 22:29:04.416 INFO [stderr] warning: variable does not need to be mutable
Dec 06 22:29:04.416 INFO [stderr]    --> src/database.rs:291:25
Dec 06 22:29:04.417 INFO [stderr]     |
Dec 06 22:29:04.417 INFO [stderr] 291 |                     let mut ver = Arc::make_mut(self.prev_verify.as_mut().unwrap());
Dec 06 22:29:04.417 INFO [stderr]     |                         ----^^^
Dec 06 22:29:04.417 INFO [stderr]     |                         |
Dec 06 22:29:04.417 INFO [stderr]     |                         help: remove this `mut`
Dec 06 22:29:04.417 INFO [stderr] 
Dec 06 22:29:05.056 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 2.61s
Dec 06 22:29:05.060 INFO [stderr] su: No module specific data is present
Dec 06 22:29:05.712 INFO running `"docker" "inspect" "ef3c1346bce76cfd138af7e2a6ac0df20eb1d2e0c13978c16ee0c790edae3aea"`
Dec 06 22:29:05.846 INFO running `"docker" "rm" "-f" "ef3c1346bce76cfd138af7e2a6ac0df20eb1d2e0c13978c16ee0c790edae3aea"`
Dec 06 22:29:05.982 INFO [stdout] ef3c1346bce76cfd138af7e2a6ac0df20eb1d2e0c13978c16ee0c790edae3aea
Dec 06 22:29:05.986 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 06 22:29:06.219 INFO [stdout] e16830e4a04e7a784eae76617c2b75e34b6f962fa6677fe09e64ce8956d3e1ef
Dec 06 22:29:06.221 INFO running `"docker" "start" "-a" "e16830e4a04e7a784eae76617c2b75e34b6f962fa6677fe09e64ce8956d3e1ef"`
Dec 06 22:29:07.255 INFO [stderr] usermod: no changes
Dec 06 22:29:07.372 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 0.09s
Dec 06 22:29:07.395 INFO [stderr]      Running /target/debug/deps/smetamath-477ae2b045be1fe3
Dec 06 22:29:07.397 INFO [stdout] 
Dec 06 22:29:07.397 INFO [stdout] running 0 tests
Dec 06 22:29:07.397 INFO [stdout] 
Dec 06 22:29:07.397 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 22:29:07.397 INFO [stdout] 
Dec 06 22:29:07.401 INFO [stderr] su: No module specific data is present
Dec 06 22:29:07.770 INFO running `"docker" "inspect" "e16830e4a04e7a784eae76617c2b75e34b6f962fa6677fe09e64ce8956d3e1ef"`
Dec 06 22:29:08.046 INFO running `"docker" "rm" "-f" "e16830e4a04e7a784eae76617c2b75e34b6f962fa6677fe09e64ce8956d3e1ef"`
Dec 06 22:29:08.278 INFO [stdout] e16830e4a04e7a784eae76617c2b75e34b6f962fa6677fe09e64ce8956d3e1ef