Nov 28 17:36:36.435 INFO checking spectral-0.6.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 17:36:36.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 17:36:36.988 INFO [stdout] 1dfe1b7d48252f5b10aad91e7d36a590f3cab9e88841c470b67c3d2f1c39a019
Nov 28 17:36:36.989 INFO running `"docker" "start" "-a" "1dfe1b7d48252f5b10aad91e7d36a590f3cab9e88841c470b67c3d2f1c39a019"`
Nov 28 17:36:39.207 INFO [stderr] usermod: no changes
Nov 28 17:36:39.316 INFO [stderr]     Checking spectral v0.6.0 (/source)
Nov 28 17:36:41.748 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:36:41.749 INFO [stderr]    --> src/lib.rs:318:13
Nov 28 17:36:41.750 INFO [stderr]     |
Nov 28 17:36:41.751 INFO [stderr] 318 |         let mut assertion = self;
Nov 28 17:36:41.751 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:36:41.752 INFO [stderr]     |             |
Nov 28 17:36:41.753 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:36:41.753 INFO [stderr]     |
Nov 28 17:36:41.754 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:36:41.754 INFO [stderr] 
Nov 28 17:36:41.755 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:36:41.755 INFO [stderr]    --> src/lib.rs:326:13
Nov 28 17:36:41.756 INFO [stderr]     |
Nov 28 17:36:41.756 INFO [stderr] 326 |         let mut assertion = self;
Nov 28 17:36:41.757 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:36:41.758 INFO [stderr]     |             |
Nov 28 17:36:41.758 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:36:41.759 INFO [stderr] 
Nov 28 17:36:42.624 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:36:42.624 INFO [stderr]    --> src/lib.rs:318:13
Nov 28 17:36:42.624 INFO [stderr]     |
Nov 28 17:36:42.624 INFO [stderr] 318 |         let mut assertion = self;
Nov 28 17:36:42.624 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:36:42.624 INFO [stderr]     |             |
Nov 28 17:36:42.624 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:36:42.624 INFO [stderr]     |
Nov 28 17:36:42.624 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:36:42.624 INFO [stderr] 
Nov 28 17:36:42.624 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:36:42.624 INFO [stderr]    --> src/lib.rs:326:13
Nov 28 17:36:42.624 INFO [stderr]     |
Nov 28 17:36:42.624 INFO [stderr] 326 |         let mut assertion = self;
Nov 28 17:36:42.624 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:36:42.624 INFO [stderr]     |             |
Nov 28 17:36:42.624 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:36:42.624 INFO [stderr] 
Nov 28 17:36:42.960 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
Nov 28 17:36:42.960 INFO [stderr] su: No module specific data is present
Nov 28 17:36:43.819 INFO running `"docker" "inspect" "1dfe1b7d48252f5b10aad91e7d36a590f3cab9e88841c470b67c3d2f1c39a019"`
Nov 28 17:36:44.092 INFO running `"docker" "rm" "-f" "1dfe1b7d48252f5b10aad91e7d36a590f3cab9e88841c470b67c3d2f1c39a019"`
Nov 28 17:36:44.276 INFO [stdout] 1dfe1b7d48252f5b10aad91e7d36a590f3cab9e88841c470b67c3d2f1c39a019