Dec 18 10:57:07.016 INFO checking specialize-0.0.3 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:57:07.016 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/specialize/0.0.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:57:07.415 INFO [stdout] 5a4de42d5787e7f2d0ee82b7e2e07d4657eafe216dc07cca396e26af5b75a3d1
Dec 18 10:57:07.417 INFO running `"docker" "start" "-a" "5a4de42d5787e7f2d0ee82b7e2e07d4657eafe216dc07cca396e26af5b75a3d1"`
Dec 18 10:57:08.680 INFO [stderr]     Checking specialize v0.0.3 (/opt/crater/workdir)
Dec 18 10:57:09.092 INFO [stderr] warning: patterns aren't allowed in methods without bodies
Dec 18 10:57:09.092 INFO [stderr]    --> src/lib.rs:594:65
Dec 18 10:57:09.092 INFO [stderr]     |
Dec 18 10:57:09.092 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 18 10:57:09.092 INFO [stderr]     |                                                                 ^^^^^
Dec 18 10:57:09.092 INFO [stderr]     |
Dec 18 10:57:09.092 INFO [stderr]     = note: #[warn(patterns_in_fns_without_body)] on by default
Dec 18 10:57:09.092 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 18 10:57:09.092 INFO [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
Dec 18 10:57:09.092 INFO [stderr] 
Dec 18 10:57:09.168 INFO [stderr] warning: unused variable: `w`
Dec 18 10:57:09.168 INFO [stderr]    --> src/lib.rs:594:69
Dec 18 10:57:09.168 INFO [stderr]     |
Dec 18 10:57:09.168 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 18 10:57:09.168 INFO [stderr]     |                                                                     ^ help: consider using `_w` instead
Dec 18 10:57:09.168 INFO [stderr]     |
Dec 18 10:57:09.168 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 10:57:09.168 INFO [stderr] 
Dec 18 10:57:09.176 INFO [stderr] warning: variable does not need to be mutable
Dec 18 10:57:09.176 INFO [stderr]    --> src/lib.rs:594:65
Dec 18 10:57:09.176 INFO [stderr]     |
Dec 18 10:57:09.176 INFO [stderr] 594 |                 trait fn WriteTest::write_test[W: Write](&self, mut w: W) -> io::Result<()>;
Dec 18 10:57:09.176 INFO [stderr]     |                                                                 ----^
Dec 18 10:57:09.176 INFO [stderr]     |                                                                 |
Dec 18 10:57:09.176 INFO [stderr]     |                                                                 help: remove this `mut`
Dec 18 10:57:09.176 INFO [stderr]     |
Dec 18 10:57:09.176 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 10:57:09.176 INFO [stderr] 
Dec 18 10:57:09.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Dec 18 10:57:09.914 INFO running `"docker" "inspect" "5a4de42d5787e7f2d0ee82b7e2e07d4657eafe216dc07cca396e26af5b75a3d1"`
Dec 18 10:57:10.118 INFO running `"docker" "rm" "-f" "5a4de42d5787e7f2d0ee82b7e2e07d4657eafe216dc07cca396e26af5b75a3d1"`
Dec 18 10:57:10.255 INFO [stdout] 5a4de42d5787e7f2d0ee82b7e2e07d4657eafe216dc07cca396e26af5b75a3d1