Dec 19 12:31:10.177 INFO checking mlsteele/iterz against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:31:10.177 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mlsteele/iterz:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:31:10.728 INFO [stdout] 156776456b77e9d9ddab150fc39ea313f1c05956cb86ae1fc5d044dbcf529285
Dec 19 12:31:10.731 INFO running `"docker" "start" "-a" "156776456b77e9d9ddab150fc39ea313f1c05956cb86ae1fc5d044dbcf529285"`
Dec 19 12:31:13.259 INFO [stderr]     Checking iterz v0.1.0 (/opt/crater/workdir)
Dec 19 12:31:13.660 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 12:31:13.660 INFO [stderr]  --> src/lib.rs:1:12
Dec 19 12:31:13.660 INFO [stderr]   |
Dec 19 12:31:13.660 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 19 12:31:13.660 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:31:13.660 INFO [stderr]   |
Dec 19 12:31:13.660 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 12:31:13.660 INFO [stderr] 
Dec 19 12:31:13.785 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 12:31:13.785 INFO [stderr]  --> src/lib.rs:1:12
Dec 19 12:31:13.785 INFO [stderr]   |
Dec 19 12:31:13.785 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 19 12:31:13.785 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:31:13.785 INFO [stderr]   |
Dec 19 12:31:13.785 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 12:31:13.785 INFO [stderr] 
Dec 19 12:31:13.824 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 19 12:31:15.181 INFO running `"docker" "inspect" "156776456b77e9d9ddab150fc39ea313f1c05956cb86ae1fc5d044dbcf529285"`
Dec 19 12:31:15.450 INFO running `"docker" "rm" "-f" "156776456b77e9d9ddab150fc39ea313f1c05956cb86ae1fc5d044dbcf529285"`
Dec 19 12:31:15.896 INFO [stdout] 156776456b77e9d9ddab150fc39ea313f1c05956cb86ae1fc5d044dbcf529285