Dec 18 13:27:16.865 INFO checking objpool-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:27:16.865 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/objpool/0.2.0:/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 13:27:17.110 INFO [stdout] b1c192fc218f8961194337267d83779c4f10ae61fc3ecdb471d060ea687ab4eb
Dec 18 13:27:17.114 INFO running `"docker" "start" "-a" "b1c192fc218f8961194337267d83779c4f10ae61fc3ecdb471d060ea687ab4eb"`
Dec 18 13:27:17.905 INFO [stderr]     Checking objpool v0.2.0 (/opt/crater/workdir)
Dec 18 13:27:18.472 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 18 13:27:18.472 INFO [stderr]    --> src/lib.rs:217:51
Dec 18 13:27:18.472 INFO [stderr]     |
Dec 18 13:27:18.472 INFO [stderr] 217 |         let elapsed_ms = start.elapsed().unwrap().as_millis();
Dec 18 13:27:18.472 INFO [stderr]     |                                                   ^^^^^^^^^
Dec 18 13:27:18.472 INFO [stderr]     |
Dec 18 13:27:18.472 INFO [stderr]     = note: #[warn(unstable_name_collisions)] on by default
Dec 18 13:27:18.472 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 18 13:27:18.472 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 18 13:27:18.472 INFO [stderr]     = help: call with fully qualified syntax `tests::AsMillis::as_millis(...)` to keep using the current method
Dec 18 13:27:18.472 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 18 13:27:18.472 INFO [stderr] 
Dec 18 13:27:18.540 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 18 13:27:18.540 INFO [stderr]    --> src/lib.rs:239:51
Dec 18 13:27:18.540 INFO [stderr]     |
Dec 18 13:27:18.540 INFO [stderr] 239 |         let elapsed_ms = start.elapsed().unwrap().as_millis();
Dec 18 13:27:18.540 INFO [stderr]     |                                                   ^^^^^^^^^
Dec 18 13:27:18.540 INFO [stderr]     |
Dec 18 13:27:18.540 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 18 13:27:18.540 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 18 13:27:18.540 INFO [stderr]     = help: call with fully qualified syntax `tests::AsMillis::as_millis(...)` to keep using the current method
Dec 18 13:27:18.540 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 18 13:27:18.540 INFO [stderr] 
Dec 18 13:27:18.556 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 18 13:27:18.556 INFO [stderr]    --> src/lib.rs:254:40
Dec 18 13:27:18.556 INFO [stderr]     |
Dec 18 13:27:18.556 INFO [stderr] 254 |         while start.elapsed().unwrap().as_millis() < 100 {
Dec 18 13:27:18.556 INFO [stderr]     |                                        ^^^^^^^^^
Dec 18 13:27:18.556 INFO [stderr]     |
Dec 18 13:27:18.556 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 18 13:27:18.556 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 18 13:27:18.556 INFO [stderr]     = help: call with fully qualified syntax `tests::AsMillis::as_millis(...)` to keep using the current method
Dec 18 13:27:18.556 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 18 13:27:18.556 INFO [stderr] 
Dec 18 13:27:18.556 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 18 13:27:18.556 INFO [stderr]    --> src/lib.rs:258:51
Dec 18 13:27:18.556 INFO [stderr]     |
Dec 18 13:27:18.556 INFO [stderr] 258 |         let elapsed_ms = start.elapsed().unwrap().as_millis();
Dec 18 13:27:18.556 INFO [stderr]     |                                                   ^^^^^^^^^
Dec 18 13:27:18.556 INFO [stderr]     |
Dec 18 13:27:18.557 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 18 13:27:18.557 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 18 13:27:18.557 INFO [stderr]     = help: call with fully qualified syntax `tests::AsMillis::as_millis(...)` to keep using the current method
Dec 18 13:27:18.557 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 18 13:27:18.557 INFO [stderr] 
Dec 18 13:27:18.752 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 18 13:27:19.798 INFO running `"docker" "inspect" "b1c192fc218f8961194337267d83779c4f10ae61fc3ecdb471d060ea687ab4eb"`
Dec 18 13:27:20.106 INFO running `"docker" "rm" "-f" "b1c192fc218f8961194337267d83779c4f10ae61fc3ecdb471d060ea687ab4eb"`
Dec 18 13:27:20.197 INFO [stdout] b1c192fc218f8961194337267d83779c4f10ae61fc3ecdb471d060ea687ab4eb