Dec 05 09:33:18.252 INFO checking orset-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 09:33:18.252 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 09:33:18.748 INFO [stdout] d80027616c4b50c2d6ea65c7ca449f0258e15cd4fae13c3912c7158bc22905ff
Dec 05 09:33:18.749 INFO running `"docker" "start" "-a" "d80027616c4b50c2d6ea65c7ca449f0258e15cd4fae13c3912c7158bc22905ff"`
Dec 05 09:33:19.376 INFO [stderr] usermod: no changes
Dec 05 09:33:19.475 INFO [stderr]     Checking orset v0.2.0 (/source)
Dec 05 09:33:19.475 INFO [stderr]     Checking quickcheck v0.2.27
Dec 05 09:33:20.435 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:20.435 INFO [stderr]   --> src/lib.rs:77:13
Dec 05 09:33:20.435 INFO [stderr]    |
Dec 05 09:33:20.435 INFO [stderr] 77 |         let mut adds = self.adds.entry(element).or_insert(Vec::new());
Dec 05 09:33:20.435 INFO [stderr]    |             ----^^^^
Dec 05 09:33:20.435 INFO [stderr]    |             |
Dec 05 09:33:20.435 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:20.435 INFO [stderr]    |
Dec 05 09:33:20.435 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 09:33:20.435 INFO [stderr] 
Dec 05 09:33:20.435 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:20.435 INFO [stderr]   --> src/lib.rs:89:13
Dec 05 09:33:20.435 INFO [stderr]    |
Dec 05 09:33:20.435 INFO [stderr] 89 |         let mut removes = self.removes.entry(element.clone()).or_insert(Vec::new());
Dec 05 09:33:20.435 INFO [stderr]    |             ----^^^^^^^
Dec 05 09:33:20.435 INFO [stderr]    |             |
Dec 05 09:33:20.435 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:20.435 INFO [stderr] 
Dec 05 09:33:20.435 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:20.435 INFO [stderr]   --> src/lib.rs:90:13
Dec 05 09:33:20.435 INFO [stderr]    |
Dec 05 09:33:20.435 INFO [stderr] 90 |         let mut adds = self.adds.get_mut(&element).unwrap();
Dec 05 09:33:20.435 INFO [stderr]    |             ----^^^^
Dec 05 09:33:20.435 INFO [stderr]    |             |
Dec 05 09:33:20.435 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:20.435 INFO [stderr] 
Dec 05 09:33:23.859 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:23.859 INFO [stderr]   --> src/lib.rs:77:13
Dec 05 09:33:23.859 INFO [stderr]    |
Dec 05 09:33:23.859 INFO [stderr] 77 |         let mut adds = self.adds.entry(element).or_insert(Vec::new());
Dec 05 09:33:23.859 INFO [stderr]    |             ----^^^^
Dec 05 09:33:23.859 INFO [stderr]    |             |
Dec 05 09:33:23.859 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:23.859 INFO [stderr]    |
Dec 05 09:33:23.859 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 09:33:23.859 INFO [stderr] 
Dec 05 09:33:23.859 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:23.859 INFO [stderr]   --> src/lib.rs:89:13
Dec 05 09:33:23.859 INFO [stderr]    |
Dec 05 09:33:23.859 INFO [stderr] 89 |         let mut removes = self.removes.entry(element.clone()).or_insert(Vec::new());
Dec 05 09:33:23.859 INFO [stderr]    |             ----^^^^^^^
Dec 05 09:33:23.859 INFO [stderr]    |             |
Dec 05 09:33:23.859 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:23.859 INFO [stderr] 
Dec 05 09:33:23.859 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:23.859 INFO [stderr]   --> src/lib.rs:90:13
Dec 05 09:33:23.859 INFO [stderr]    |
Dec 05 09:33:23.859 INFO [stderr] 90 |         let mut adds = self.adds.get_mut(&element).unwrap();
Dec 05 09:33:23.859 INFO [stderr]    |             ----^^^^
Dec 05 09:33:23.859 INFO [stderr]    |             |
Dec 05 09:33:23.859 INFO [stderr]    |             help: remove this `mut`
Dec 05 09:33:23.859 INFO [stderr] 
Dec 05 09:33:23.919 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:23.919 INFO [stderr]    --> src/lib.rs:517:13
Dec 05 09:33:23.919 INFO [stderr]     |
Dec 05 09:33:23.919 INFO [stderr] 517 |         let mut orset =
Dec 05 09:33:23.919 INFO [stderr]     |             ----^^^^^
Dec 05 09:33:23.919 INFO [stderr]     |             |
Dec 05 09:33:23.919 INFO [stderr]     |             help: remove this `mut`
Dec 05 09:33:23.919 INFO [stderr] 
Dec 05 09:33:23.919 INFO [stderr] warning: variable does not need to be mutable
Dec 05 09:33:23.919 INFO [stderr]    --> src/lib.rs:520:13
Dec 05 09:33:23.919 INFO [stderr]     |
Dec 05 09:33:23.919 INFO [stderr] 520 |         let mut mutator = mutators.entry(node).or_insert(Vec::new());
Dec 05 09:33:23.919 INFO [stderr]     |             ----^^^^^^^
Dec 05 09:33:23.919 INFO [stderr]     |             |
Dec 05 09:33:23.919 INFO [stderr]     |             help: remove this `mut`
Dec 05 09:33:23.919 INFO [stderr] 
Dec 05 09:33:23.987 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
Dec 05 09:33:24.007 INFO [stderr] su: No module specific data is present
Dec 05 09:33:24.560 INFO running `"docker" "inspect" "d80027616c4b50c2d6ea65c7ca449f0258e15cd4fae13c3912c7158bc22905ff"`
Dec 05 09:33:24.951 INFO running `"docker" "rm" "-f" "d80027616c4b50c2d6ea65c7ca449f0258e15cd4fae13c3912c7158bc22905ff"`
Dec 05 09:33:25.169 INFO [stdout] d80027616c4b50c2d6ea65c7ca449f0258e15cd4fae13c3912c7158bc22905ff