Dec 17 13:44:42.409 INFO checking thephred/aoc2015 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:44:42.409 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/thephred/aoc2015:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 13:44:42.572 INFO [stdout] d79193bf1867de254f89fb0b8fdafa27f0612676282cfe009e995c4f7f738e64
Dec 17 13:44:42.574 INFO running `"docker" "start" "-a" "d79193bf1867de254f89fb0b8fdafa27f0612676282cfe009e995c4f7f738e64"`
Dec 17 13:44:43.172 INFO [stderr]     Checking md5 v0.3.6
Dec 17 13:44:43.172 INFO [stderr]     Checking itertools v0.7.4
Dec 17 13:44:44.981 INFO [stderr]     Checking aoc2015 v0.1.0 (/opt/crater/workdir)
Dec 17 13:44:45.568 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.568 INFO [stderr]  --> src/lib.rs:1:12
Dec 17 13:44:45.568 INFO [stderr]   |
Dec 17 13:44:45.568 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 17 13:44:45.568 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.568 INFO [stderr]   |
Dec 17 13:44:45.568 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 13:44:45.568 INFO [stderr] 
Dec 17 13:44:45.568 INFO [stderr] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.568 INFO [stderr]  --> src/lib.rs:2:12
Dec 17 13:44:45.568 INFO [stderr]   |
Dec 17 13:44:45.568 INFO [stderr] 2 | #![feature(universal_impl_trait)]
Dec 17 13:44:45.568 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.569 INFO [stderr] 
Dec 17 13:44:45.569 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.569 INFO [stderr]  --> src/lib.rs:3:12
Dec 17 13:44:45.569 INFO [stderr]   |
Dec 17 13:44:45.569 INFO [stderr] 3 | #![feature(inclusive_range_syntax)]
Dec 17 13:44:45.569 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.569 INFO [stderr] 
Dec 17 13:44:45.569 INFO [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.569 INFO [stderr]  --> src/lib.rs:5:12
Dec 17 13:44:45.569 INFO [stderr]   |
Dec 17 13:44:45.569 INFO [stderr] 5 | #![feature(entry_and_modify)]
Dec 17 13:44:45.569 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 17 13:44:45.569 INFO [stderr] 
Dec 17 13:44:45.569 INFO [stderr] warning: the feature `entry_or_default` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 17 13:44:45.569 INFO [stderr]  --> src/lib.rs:4:12
Dec 17 13:44:45.569 INFO [stderr]   |
Dec 17 13:44:45.569 INFO [stderr] 4 | #![feature(entry_or_default)]
Dec 17 13:44:45.569 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 17 13:44:45.569 INFO [stderr] 
Dec 17 13:44:45.596 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.596 INFO [stderr]  --> src/lib.rs:1:12
Dec 17 13:44:45.596 INFO [stderr]   |
Dec 17 13:44:45.596 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 17 13:44:45.596 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.596 INFO [stderr]   |
Dec 17 13:44:45.596 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 13:44:45.596 INFO [stderr] 
Dec 17 13:44:45.596 INFO [stderr] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.596 INFO [stderr]  --> src/lib.rs:2:12
Dec 17 13:44:45.596 INFO [stderr]   |
Dec 17 13:44:45.596 INFO [stderr] 2 | #![feature(universal_impl_trait)]
Dec 17 13:44:45.596 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.596 INFO [stderr] 
Dec 17 13:44:45.596 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.596 INFO [stderr]  --> src/lib.rs:3:12
Dec 17 13:44:45.596 INFO [stderr]   |
Dec 17 13:44:45.596 INFO [stderr] 3 | #![feature(inclusive_range_syntax)]
Dec 17 13:44:45.596 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:44:45.597 INFO [stderr] 
Dec 17 13:44:45.597 INFO [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 13:44:45.597 INFO [stderr]  --> src/lib.rs:5:12
Dec 17 13:44:45.597 INFO [stderr]   |
Dec 17 13:44:45.597 INFO [stderr] 5 | #![feature(entry_and_modify)]
Dec 17 13:44:45.597 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 17 13:44:45.597 INFO [stderr] 
Dec 17 13:44:45.597 INFO [stderr] warning: the feature `entry_or_default` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 17 13:44:45.597 INFO [stderr]  --> src/lib.rs:4:12
Dec 17 13:44:45.597 INFO [stderr]   |
Dec 17 13:44:45.597 INFO [stderr] 4 | #![feature(entry_or_default)]
Dec 17 13:44:45.597 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 17 13:44:45.597 INFO [stderr] 
Dec 17 13:44:45.620 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
Dec 17 13:44:46.462 INFO running `"docker" "inspect" "d79193bf1867de254f89fb0b8fdafa27f0612676282cfe009e995c4f7f738e64"`
Dec 17 13:44:46.830 INFO running `"docker" "rm" "-f" "d79193bf1867de254f89fb0b8fdafa27f0612676282cfe009e995c4f7f738e64"`
Dec 17 13:44:47.187 INFO [stdout] d79193bf1867de254f89fb0b8fdafa27f0612676282cfe009e995c4f7f738e64