Dec 18 10:19:50.688 INFO checking thin_cstr-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:19:50.688 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/thin_cstr/0.1.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:19:51.140 INFO [stdout] f1352a96a03d6b225032eb2f2d85346f988b7d72f5b5f5157ac672fe83b91237
Dec 18 10:19:51.148 INFO running `"docker" "start" "-a" "f1352a96a03d6b225032eb2f2d85346f988b7d72f5b5f5157ac672fe83b91237"`
Dec 18 10:19:52.548 INFO [stderr]     Checking thin_cstr v0.1.0 (/opt/crater/workdir)
Dec 18 10:19:53.120 INFO [stderr] warning: type annotations needed
Dec 18 10:19:53.120 INFO [stderr]    --> src/c_str.rs:832:27
Dec 18 10:19:53.120 INFO [stderr]     |
Dec 18 10:19:53.120 INFO [stderr] 832 |         (ptr as *const _).as_ref().expect("cannot convert a null pointer to a CStr")
Dec 18 10:19:53.120 INFO [stderr]     |                           ^^^^^^
Dec 18 10:19:53.120 INFO [stderr]     |
Dec 18 10:19:53.120 INFO [stderr]     = note: #[warn(tyvar_behind_raw_pointer)] on by default
Dec 18 10:19:53.120 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
Dec 18 10:19:53.120 INFO [stderr]     = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
Dec 18 10:19:53.120 INFO [stderr] 
Dec 18 10:19:53.232 INFO [stderr] warning: type annotations needed
Dec 18 10:19:53.232 INFO [stderr]    --> src/c_str.rs:832:27
Dec 18 10:19:53.232 INFO [stderr]     |
Dec 18 10:19:53.232 INFO [stderr] 832 |         (ptr as *const _).as_ref().expect("cannot convert a null pointer to a CStr")
Dec 18 10:19:53.232 INFO [stderr]     |                           ^^^^^^
Dec 18 10:19:53.232 INFO [stderr]     |
Dec 18 10:19:53.232 INFO [stderr]     = note: #[warn(tyvar_behind_raw_pointer)] on by default
Dec 18 10:19:53.232 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
Dec 18 10:19:53.232 INFO [stderr]     = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
Dec 18 10:19:53.232 INFO [stderr] 
Dec 18 10:19:53.321 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 18 10:19:53.610 INFO running `"docker" "inspect" "f1352a96a03d6b225032eb2f2d85346f988b7d72f5b5f5157ac672fe83b91237"`
Dec 18 10:19:53.720 INFO running `"docker" "rm" "-f" "f1352a96a03d6b225032eb2f2d85346f988b7d72f5b5f5157ac672fe83b91237"`
Dec 18 10:19:53.972 INFO [stdout] f1352a96a03d6b225032eb2f2d85346f988b7d72f5b5f5157ac672fe83b91237