Dec 05 10:52:22.880 INFO checking list_builder-0.0.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:52:22.880 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 10:52:23.373 INFO [stdout] 39bf4da2a16cd11f787e6bf85323ed3e934de49870d113e1b79066e3f336d044
Dec 05 10:52:23.383 INFO running `"docker" "start" "-a" "39bf4da2a16cd11f787e6bf85323ed3e934de49870d113e1b79066e3f336d044"`
Dec 05 10:52:24.811 INFO [stderr] usermod: no changes
Dec 05 10:52:24.879 INFO [stderr]     Checking list_builder v0.0.2 (/source)
Dec 05 10:52:25.531 INFO [stderr] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 05 10:52:25.531 INFO [stderr]  --> src/lib.rs:1:12
Dec 05 10:52:25.531 INFO [stderr]   |
Dec 05 10:52:25.531 INFO [stderr] 1 | #![feature(core)]
Dec 05 10:52:25.531 INFO [stderr]   |            ^^^^
Dec 05 10:52:25.531 INFO [stderr]   |
Dec 05 10:52:25.531 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:52:25.531 INFO [stderr] 
Dec 05 10:52:25.531 INFO [stderr] warning: unused attribute
Dec 05 10:52:25.531 INFO [stderr]   --> src/lib.rs:40:1
Dec 05 10:52:25.531 INFO [stderr]    |
Dec 05 10:52:25.531 INFO [stderr] 40 | #[macro_use]
Dec 05 10:52:25.531 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 10:52:25.531 INFO [stderr]    |
Dec 05 10:52:25.531 INFO [stderr]    = note: #[warn(unused_attributes)] on by default
Dec 05 10:52:25.531 INFO [stderr] 
Dec 05 10:52:26.091 INFO [stderr] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 05 10:52:26.091 INFO [stderr]  --> src/lib.rs:1:12
Dec 05 10:52:26.091 INFO [stderr]   |
Dec 05 10:52:26.091 INFO [stderr] 1 | #![feature(core)]
Dec 05 10:52:26.091 INFO [stderr]   |            ^^^^
Dec 05 10:52:26.092 INFO [stderr]   |
Dec 05 10:52:26.092 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:52:26.092 INFO [stderr] 
Dec 05 10:52:26.092 INFO [stderr] warning: unused attribute
Dec 05 10:52:26.092 INFO [stderr]   --> src/lib.rs:40:1
Dec 05 10:52:26.092 INFO [stderr]    |
Dec 05 10:52:26.092 INFO [stderr] 40 | #[macro_use]
Dec 05 10:52:26.092 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 10:52:26.092 INFO [stderr]    |
Dec 05 10:52:26.092 INFO [stderr]    = note: #[warn(unused_attributes)] on by default
Dec 05 10:52:26.092 INFO [stderr] 
Dec 05 10:52:26.719 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
Dec 05 10:52:26.727 INFO [stderr] su: No module specific data is present
Dec 05 10:52:27.411 INFO running `"docker" "inspect" "39bf4da2a16cd11f787e6bf85323ed3e934de49870d113e1b79066e3f336d044"`
Dec 05 10:52:27.797 INFO running `"docker" "rm" "-f" "39bf4da2a16cd11f787e6bf85323ed3e934de49870d113e1b79066e3f336d044"`
Dec 05 10:52:28.174 INFO [stdout] 39bf4da2a16cd11f787e6bf85323ed3e934de49870d113e1b79066e3f336d044