Dec 05 05:32:10.064 INFO checking time2-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 05:32:10.064 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 05:32:10.497 INFO [stdout] 54abf20142a693c8e3b74715010b9b4c32bdc91f4a53a98042c7726c7792fbad
Dec 05 05:32:10.505 INFO running `"docker" "start" "-a" "54abf20142a693c8e3b74715010b9b4c32bdc91f4a53a98042c7726c7792fbad"`
Dec 05 05:32:11.365 INFO [stderr] usermod: no changes
Dec 05 05:32:11.452 INFO [stderr]     Checking time2 v0.2.0 (/source)
Dec 05 05:32:11.453 INFO [stderr]     Checking quickcheck v0.2.27
Dec 05 05:32:14.958 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 05 05:32:14.958 INFO [stderr]    --> src/duration.rs:143:43
Dec 05 05:32:14.958 INFO [stderr]     |
Dec 05 05:32:14.958 INFO [stderr] 143 |             Duration::from_millis(millis).as_millis() == Some(millis)
Dec 05 05:32:14.958 INFO [stderr]     |                                           ^^^^^^^^^
Dec 05 05:32:14.958 INFO [stderr]     |
Dec 05 05:32:14.958 INFO [stderr]     = note: #[warn(unstable_name_collisions)] on by default
Dec 05 05:32:14.958 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 05 05:32:14.958 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 05 05:32:14.958 INFO [stderr]     = help: call with fully qualified syntax `duration::DurationExt::as_millis(...)` to keep using the current method
Dec 05 05:32:14.958 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 05 05:32:14.958 INFO [stderr] 
Dec 05 05:32:14.958 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Dec 05 05:32:14.958 INFO [stderr]    --> src/duration.rs:148:36
Dec 05 05:32:14.958 INFO [stderr]     |
Dec 05 05:32:14.958 INFO [stderr] 148 |             let millis = match dur.as_millis() {
Dec 05 05:32:14.958 INFO [stderr]     |                                    ^^^^^^^^^
Dec 05 05:32:14.958 INFO [stderr]     |
Dec 05 05:32:14.958 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Dec 05 05:32:14.958 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Dec 05 05:32:14.958 INFO [stderr]     = help: call with fully qualified syntax `duration::DurationExt::as_millis(...)` to keep using the current method
Dec 05 05:32:14.958 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Dec 05 05:32:14.958 INFO [stderr] 
Dec 05 05:32:15.004 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 05 05:32:15.004 INFO [stderr]    --> src/duration.rs:218:25
Dec 05 05:32:15.004 INFO [stderr]     |
Dec 05 05:32:15.004 INFO [stderr] 218 |                         dur * rhs;
Dec 05 05:32:15.004 INFO [stderr]     |                         ^^^^^^^^^
Dec 05 05:32:15.004 INFO [stderr]     |
Dec 05 05:32:15.004 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 05:32:15.004 INFO [stderr] 
Dec 05 05:32:15.019 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
Dec 05 05:32:15.025 INFO [stderr] su: No module specific data is present
Dec 05 05:32:15.304 INFO running `"docker" "inspect" "54abf20142a693c8e3b74715010b9b4c32bdc91f4a53a98042c7726c7792fbad"`
Dec 05 05:32:15.411 INFO running `"docker" "rm" "-f" "54abf20142a693c8e3b74715010b9b4c32bdc91f4a53a98042c7726c7792fbad"`
Dec 05 05:32:15.583 INFO [stdout] 54abf20142a693c8e3b74715010b9b4c32bdc91f4a53a98042c7726c7792fbad