Dec 05 15:12:50.672 INFO checking collection-0.1.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 15:12:50.672 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05 15:12:51.056 INFO [stdout] 53f9657fe726eb59c378e579c2ef69c5ee4ebe929a8f3e840cd62f14f13fb663
Dec 05 15:12:51.060 INFO running `"docker" "start" "-a" "53f9657fe726eb59c378e579c2ef69c5ee4ebe929a8f3e840cd62f14f13fb663"`
Dec 05 15:12:52.631 INFO [stderr] usermod: no changes
Dec 05 15:12:52.730 INFO [stderr]     Checking trait-group v0.1.0
Dec 05 15:12:53.471 INFO [stderr]     Checking collection v0.1.1 (/source)
Dec 05 15:12:54.775 INFO [stderr] warning: unused macro definition
Dec 05 15:12:54.775 INFO [stderr]    --> src/collection/mod.rs:271:1
Dec 05 15:12:54.775 INFO [stderr]     |
Dec 05 15:12:54.775 INFO [stderr] 271 | / macro_rules! collection {
Dec 05 15:12:54.775 INFO [stderr] 272 | |     ($collection:ident<$t:ident>
Dec 05 15:12:54.775 INFO [stderr] 273 | |      {
Dec 05 15:12:54.775 INFO [stderr] 274 | |          $( $slot:ident: $submeta:ident<$subtype:ty>, )*
Dec 05 15:12:54.775 INFO [stderr] ...   |
Dec 05 15:12:54.775 INFO [stderr] 327 | |     )
Dec 05 15:12:54.775 INFO [stderr] 328 | | }
Dec 05 15:12:54.775 INFO [stderr]     | |_^
Dec 05 15:12:54.775 INFO [stderr]     |
Dec 05 15:12:54.775 INFO [stderr]     = note: #[warn(unused_macros)] on by default
Dec 05 15:12:54.775 INFO [stderr] 
Dec 05 15:12:56.215 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
Dec 05 15:12:56.215 INFO [stderr] su: No module specific data is present
Dec 05 15:12:56.956 INFO running `"docker" "inspect" "53f9657fe726eb59c378e579c2ef69c5ee4ebe929a8f3e840cd62f14f13fb663"`
Dec 05 15:12:57.193 INFO running `"docker" "rm" "-f" "53f9657fe726eb59c378e579c2ef69c5ee4ebe929a8f3e840cd62f14f13fb663"`
Dec 05 15:12:57.455 INFO [stdout] 53f9657fe726eb59c378e579c2ef69c5ee4ebe929a8f3e840cd62f14f13fb663