Nov 28 16:47:35.696 INFO checking time2-0.2.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 16:47:35.696 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 16:47:35.921 INFO [stdout] c890802d208bc5f0fa382fc26b0141e97abd7e85d8c3c3ea5c39c1b14723075d
Nov 28 16:47:35.923 INFO running `"docker" "start" "-a" "c890802d208bc5f0fa382fc26b0141e97abd7e85d8c3c3ea5c39c1b14723075d"`
Nov 28 16:47:36.440 INFO [stderr] usermod: no changes
Nov 28 16:47:36.504 INFO [stderr]     Checking time2 v0.2.0 (/source)
Nov 28 16:47:36.512 INFO [stderr]     Checking quickcheck v0.2.27
Nov 28 16:47:40.148 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Nov 28 16:47:40.148 INFO [stderr]    --> src/duration.rs:143:43
Nov 28 16:47:40.148 INFO [stderr]     |
Nov 28 16:47:40.148 INFO [stderr] 143 |             Duration::from_millis(millis).as_millis() == Some(millis)
Nov 28 16:47:40.148 INFO [stderr]     |                                           ^^^^^^^^^
Nov 28 16:47:40.148 INFO [stderr]     |
Nov 28 16:47:40.148 INFO [stderr]     = note: #[warn(unstable_name_collisions)] on by default
Nov 28 16:47:40.149 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Nov 28 16:47:40.149 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Nov 28 16:47:40.149 INFO [stderr]     = help: call with fully qualified syntax `duration::DurationExt::as_millis(...)` to keep using the current method
Nov 28 16:47:40.149 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Nov 28 16:47:40.149 INFO [stderr] 
Nov 28 16:47:40.164 INFO [stderr] warning: a method with this name may be added to the standard library in the future
Nov 28 16:47:40.164 INFO [stderr]    --> src/duration.rs:148:36
Nov 28 16:47:40.165 INFO [stderr]     |
Nov 28 16:47:40.165 INFO [stderr] 148 |             let millis = match dur.as_millis() {
Nov 28 16:47:40.165 INFO [stderr]     |                                    ^^^^^^^^^
Nov 28 16:47:40.165 INFO [stderr]     |
Nov 28 16:47:40.165 INFO [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
Nov 28 16:47:40.165 INFO [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
Nov 28 16:47:40.165 INFO [stderr]     = help: call with fully qualified syntax `duration::DurationExt::as_millis(...)` to keep using the current method
Nov 28 16:47:40.165 INFO [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
Nov 28 16:47:40.165 INFO [stderr] 
Nov 28 16:47:40.213 INFO [stderr] warning: unused arithmetic operation that must be used
Nov 28 16:47:40.213 INFO [stderr]    --> src/duration.rs:218:25
Nov 28 16:47:40.213 INFO [stderr]     |
Nov 28 16:47:40.213 INFO [stderr] 218 |                         dur * rhs;
Nov 28 16:47:40.213 INFO [stderr]     |                         ^^^^^^^^^
Nov 28 16:47:40.213 INFO [stderr]     |
Nov 28 16:47:40.213 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 16:47:40.213 INFO [stderr] 
Nov 28 16:47:40.231 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
Nov 28 16:47:40.236 INFO [stderr] su: No module specific data is present
Nov 28 16:47:40.754 INFO running `"docker" "inspect" "c890802d208bc5f0fa382fc26b0141e97abd7e85d8c3c3ea5c39c1b14723075d"`
Nov 28 16:47:40.881 INFO running `"docker" "rm" "-f" "c890802d208bc5f0fa382fc26b0141e97abd7e85d8c3c3ea5c39c1b14723075d"`
Nov 28 16:47:40.981 INFO [stdout] c890802d208bc5f0fa382fc26b0141e97abd7e85d8c3c3ea5c39c1b14723075d