Dec 12 07:08:53.695 INFO checking specialize-0.0.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 07:08:53.695 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 07:08:54.168 INFO [stdout] ff5c2238f3e0e59e7c543639d7f34aaa1b6fa588509b729c852b1a086f11b16a
Dec 12 07:08:54.170 INFO running `"docker" "start" "-a" "ff5c2238f3e0e59e7c543639d7f34aaa1b6fa588509b729c852b1a086f11b16a"`
Dec 12 07:08:55.167 INFO [stderr] usermod: no changes
Dec 12 07:08:55.196 INFO [stderr]     Checking specialize v0.0.3 (/source)
Dec 12 07:08:55.724 INFO [stderr] warning: patterns aren't allowed in methods without bodies
Dec 12 07:08:55.724 INFO [stderr]    --> src/lib.rs:594:65
Dec 12 07:08:55.724 INFO [stderr]     |
Dec 12 07:08:55.724 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 12 07:08:55.724 INFO [stderr]     |                                                                 ^^^^^
Dec 12 07:08:55.724 INFO [stderr]     |
Dec 12 07:08:55.725 INFO [stderr]     = note: #[warn(patterns_in_fns_without_body)] on by default
Dec 12 07:08:55.725 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 12 07:08:55.725 INFO [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
Dec 12 07:08:55.725 INFO [stderr] 
Dec 12 07:08:55.816 INFO [stderr] warning: unused variable: `w`
Dec 12 07:08:55.816 INFO [stderr]    --> src/lib.rs:594:69
Dec 12 07:08:55.816 INFO [stderr]     |
Dec 12 07:08:55.848 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 12 07:08:55.848 INFO [stderr]     |                                                                     ^ help: consider using `_w` instead
Dec 12 07:08:55.848 INFO [stderr]     |
Dec 12 07:08:55.848 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 07:08:55.848 INFO [stderr] 
Dec 12 07:08:55.848 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:08:55.848 INFO [stderr]    --> src/lib.rs:594:65
Dec 12 07:08:55.848 INFO [stderr]     |
Dec 12 07:08:55.848 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 12 07:08:55.848 INFO [stderr]     |                                                                 ----^
Dec 12 07:08:55.848 INFO [stderr]     |                                                                 |
Dec 12 07:08:55.848 INFO [stderr]     |                                                                 help: remove this `mut`
Dec 12 07:08:55.848 INFO [stderr]     |
Dec 12 07:08:55.848 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:08:55.848 INFO [stderr] 
Dec 12 07:08:55.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 12 07:08:55.857 INFO [stderr] su: No module specific data is present
Dec 12 07:08:56.371 INFO running `"docker" "inspect" "ff5c2238f3e0e59e7c543639d7f34aaa1b6fa588509b729c852b1a086f11b16a"`
Dec 12 07:08:56.546 INFO running `"docker" "rm" "-f" "ff5c2238f3e0e59e7c543639d7f34aaa1b6fa588509b729c852b1a086f11b16a"`
Dec 12 07:08:56.715 INFO [stdout] ff5c2238f3e0e59e7c543639d7f34aaa1b6fa588509b729c852b1a086f11b16a