Dec 04 08:41:07.392 INFO checking thephred/aoc2015 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:41:07.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 08:41:07.851 INFO [stdout] ed6aa42718c4c04e5457536f6df6a04e11c62b4c6f1893fab86faf3f9a7f8ae7
Dec 04 08:41:07.859 INFO running `"docker" "start" "-a" "ed6aa42718c4c04e5457536f6df6a04e11c62b4c6f1893fab86faf3f9a7f8ae7"`
Dec 04 08:41:09.203 INFO [stderr] usermod: no changes
Dec 04 08:41:09.263 INFO [stderr]     Checking md5 v0.3.6
Dec 04 08:41:09.263 INFO [stderr]     Checking itertools v0.7.4
Dec 04 08:41:11.809 INFO [stderr]     Checking aoc2015 v0.1.0 (/source)
Dec 04 08:41:12.727 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:12.727 INFO [stderr]  --> src/lib.rs:1:12
Dec 04 08:41:12.727 INFO [stderr]   |
Dec 04 08:41:12.727 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 04 08:41:12.727 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:12.743 INFO [stderr]   |
Dec 04 08:41:12.743 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 08:41:12.743 INFO [stderr] 
Dec 04 08:41:12.743 INFO [stderr] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:12.743 INFO [stderr]  --> src/lib.rs:2:12
Dec 04 08:41:12.743 INFO [stderr]   |
Dec 04 08:41:12.743 INFO [stderr] 2 | #![feature(universal_impl_trait)]
Dec 04 08:41:12.743 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:12.743 INFO [stderr] 
Dec 04 08:41:12.743 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:12.743 INFO [stderr]  --> src/lib.rs:3:12
Dec 04 08:41:12.743 INFO [stderr]   |
Dec 04 08:41:12.743 INFO [stderr] 3 | #![feature(inclusive_range_syntax)]
Dec 04 08:41:12.743 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:12.743 INFO [stderr] 
Dec 04 08:41:12.743 INFO [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:12.743 INFO [stderr]  --> src/lib.rs:5:12
Dec 04 08:41:12.743 INFO [stderr]   |
Dec 04 08:41:12.743 INFO [stderr] 5 | #![feature(entry_and_modify)]
Dec 04 08:41:12.743 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 04 08:41:12.743 INFO [stderr] 
Dec 04 08:41:12.743 INFO [stderr] warning: the feature `entry_or_default` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 04 08:41:12.743 INFO [stderr]  --> src/lib.rs:4:12
Dec 04 08:41:12.743 INFO [stderr]   |
Dec 04 08:41:12.743 INFO [stderr] 4 | #![feature(entry_or_default)]
Dec 04 08:41:12.743 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 04 08:41:12.743 INFO [stderr] 
Dec 04 08:41:13.043 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:13.043 INFO [stderr]  --> src/lib.rs:1:12
Dec 04 08:41:13.043 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 04 08:41:13.044 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:13.044 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 08:41:13.044 INFO [stderr] 
Dec 04 08:41:13.044 INFO [stderr] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:13.044 INFO [stderr]  --> src/lib.rs:2:12
Dec 04 08:41:13.044 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr] 2 | #![feature(universal_impl_trait)]
Dec 04 08:41:13.044 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:13.044 INFO [stderr] 
Dec 04 08:41:13.044 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:13.044 INFO [stderr]  --> src/lib.rs:3:12
Dec 04 08:41:13.044 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr] 3 | #![feature(inclusive_range_syntax)]
Dec 04 08:41:13.044 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:41:13.044 INFO [stderr] 
Dec 04 08:41:13.044 INFO [stderr] warning: the feature `entry_and_modify` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 08:41:13.044 INFO [stderr]  --> src/lib.rs:5:12
Dec 04 08:41:13.044 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr] 5 | #![feature(entry_and_modify)]
Dec 04 08:41:13.044 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 04 08:41:13.044 INFO [stderr] 
Dec 04 08:41:13.044 INFO [stderr] warning: the feature `entry_or_default` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 04 08:41:13.044 INFO [stderr]  --> src/lib.rs:4:12
Dec 04 08:41:13.044 INFO [stderr]   |
Dec 04 08:41:13.044 INFO [stderr] 4 | #![feature(entry_or_default)]
Dec 04 08:41:13.044 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 04 08:41:13.044 INFO [stderr] 
Dec 04 08:41:13.083 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.86s
Dec 04 08:41:13.091 INFO [stderr] su: No module specific data is present
Dec 04 08:41:14.199 INFO running `"docker" "inspect" "ed6aa42718c4c04e5457536f6df6a04e11c62b4c6f1893fab86faf3f9a7f8ae7"`
Dec 04 08:41:14.513 INFO running `"docker" "rm" "-f" "ed6aa42718c4c04e5457536f6df6a04e11c62b4c6f1893fab86faf3f9a7f8ae7"`
Dec 04 08:41:14.853 INFO [stdout] ed6aa42718c4c04e5457536f6df6a04e11c62b4c6f1893fab86faf3f9a7f8ae7