Dec 05 10:37:36.739 INFO checking mastodon-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:37:36.739 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 10:37:36.951 INFO [stdout] 06be13a5ce6db90abbce90c6596a31fe28445be9f292ac79405bc56c565be9cd
Dec 05 10:37:36.957 INFO running `"docker" "start" "-a" "06be13a5ce6db90abbce90c6596a31fe28445be9f292ac79405bc56c565be9cd"`
Dec 05 10:37:37.418 INFO [stderr] usermod: no changes
Dec 05 10:37:37.539 INFO [stderr]     Checking mastodon v0.1.0 (/source)
Dec 05 10:37:40.387 INFO [stderr] warning: unused imports: `Read`, `self`
Dec 05 10:37:40.387 INFO [stderr]   --> src/lib.rs:25:19
Dec 05 10:37:40.387 INFO [stderr]    |
Dec 05 10:37:40.387 INFO [stderr] 25 |     use std::io::{self, Read};
Dec 05 10:37:40.387 INFO [stderr]    |                   ^^^^  ^^^^
Dec 05 10:37:40.387 INFO [stderr]    |
Dec 05 10:37:40.387 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 10:37:40.387 INFO [stderr] 
Dec 05 10:37:40.691 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 10:37:40.691 INFO [stderr]  --> src/lib.rs:1:12
Dec 05 10:37:40.691 INFO [stderr]   |
Dec 05 10:37:40.691 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 05 10:37:40.691 INFO [stderr]   |            ^^^^^^^^^^
Dec 05 10:37:40.691 INFO [stderr]   |
Dec 05 10:37:40.691 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:37:40.691 INFO [stderr] 
Dec 05 10:37:40.867 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 10:37:40.867 INFO [stderr]  --> src/lib.rs:1:12
Dec 05 10:37:40.867 INFO [stderr]   |
Dec 05 10:37:40.867 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 05 10:37:40.867 INFO [stderr]   |            ^^^^^^^^^^
Dec 05 10:37:40.867 INFO [stderr]   |
Dec 05 10:37:40.867 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:37:40.867 INFO [stderr] 
Dec 05 10:37:40.907 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
Dec 05 10:37:40.921 INFO [stderr] su: No module specific data is present
Dec 05 10:37:41.404 INFO running `"docker" "inspect" "06be13a5ce6db90abbce90c6596a31fe28445be9f292ac79405bc56c565be9cd"`
Dec 05 10:37:41.490 INFO running `"docker" "rm" "-f" "06be13a5ce6db90abbce90c6596a31fe28445be9f292ac79405bc56c565be9cd"`
Dec 05 10:37:41.597 INFO [stdout] 06be13a5ce6db90abbce90c6596a31fe28445be9f292ac79405bc56c565be9cd