Dec 18 14:41:06.712 INFO checking kay-0.3.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:41:06.713 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/kay/0.3.1:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:41:06.921 INFO [stdout] 7dc9fa24c2e57679ed32fc03e4d846fd090fbb1238eff9e80afea971a14e7d4b
Dec 18 14:41:06.923 INFO running `"docker" "start" "-a" "7dc9fa24c2e57679ed32fc03e4d846fd090fbb1238eff9e80afea971a14e7d4b"`
Dec 18 14:41:07.704 INFO [stderr]     Checking simple_allocator_trait v0.1.0
Dec 18 14:41:07.712 INFO [stderr]    Compiling compact_macros v0.1.0
Dec 18 14:41:07.712 INFO [stderr]     Checking tungstenite v0.5.4
Dec 18 14:41:08.006 INFO [stderr]     Checking compact v0.2.13
Dec 18 14:41:08.006 INFO [stderr]     Checking chunky v0.1.2
Dec 18 14:41:09.623 INFO [stderr]     Checking kay v0.3.1 (/opt/crater/workdir)
Dec 18 14:41:11.084 INFO [stderr] warning: the feature `nonzero` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 14:41:11.084 INFO [stderr]   --> src/lib.rs:18:12
Dec 18 14:41:11.084 INFO [stderr]    |
Dec 18 14:41:11.084 INFO [stderr] 18 | #![feature(nonzero)]
Dec 18 14:41:11.084 INFO [stderr]    |            ^^^^^^^
Dec 18 14:41:11.084 INFO [stderr]    |
Dec 18 14:41:11.084 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 14:41:11.084 INFO [stderr] 
Dec 18 14:41:11.084 INFO [stderr] warning: the feature `tcpstream_connect_timeout` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 18 14:41:11.084 INFO [stderr]   --> src/lib.rs:19:12
Dec 18 14:41:11.084 INFO [stderr]    |
Dec 18 14:41:11.084 INFO [stderr] 19 | #![feature(tcpstream_connect_timeout)]
Dec 18 14:41:11.084 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:41:11.084 INFO [stderr] 
Dec 18 14:41:11.128 INFO [stderr] warning: the feature `nonzero` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 14:41:11.128 INFO [stderr]   --> src/lib.rs:18:12
Dec 18 14:41:11.128 INFO [stderr]    |
Dec 18 14:41:11.128 INFO [stderr] 18 | #![feature(nonzero)]
Dec 18 14:41:11.128 INFO [stderr]    |            ^^^^^^^
Dec 18 14:41:11.128 INFO [stderr]    |
Dec 18 14:41:11.128 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 14:41:11.128 INFO [stderr] 
Dec 18 14:41:11.128 INFO [stderr] warning: the feature `tcpstream_connect_timeout` has been stable since 1.21.0 and no longer requires an attribute to enable
Dec 18 14:41:11.128 INFO [stderr]   --> src/lib.rs:19:12
Dec 18 14:41:11.129 INFO [stderr]    |
Dec 18 14:41:11.129 INFO [stderr] 19 | #![feature(tcpstream_connect_timeout)]
Dec 18 14:41:11.129 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:41:11.129 INFO [stderr] 
Dec 18 14:41:11.193 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
Dec 18 14:41:12.122 INFO running `"docker" "inspect" "7dc9fa24c2e57679ed32fc03e4d846fd090fbb1238eff9e80afea971a14e7d4b"`
Dec 18 14:41:12.524 INFO running `"docker" "rm" "-f" "7dc9fa24c2e57679ed32fc03e4d846fd090fbb1238eff9e80afea971a14e7d4b"`
Dec 18 14:41:12.864 INFO [stdout] 7dc9fa24c2e57679ed32fc03e4d846fd090fbb1238eff9e80afea971a14e7d4b