Dec 05 08:51:32.414 INFO checking prometheus-static-metric-0.1.4 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:51:32.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 08:51:32.648 INFO [stdout] 2d9d295c55fc27757d9dd0959899a57786e0054211e6b3918cf8f70854e3626d
Dec 05 08:51:32.652 INFO running `"docker" "start" "-a" "2d9d295c55fc27757d9dd0959899a57786e0054211e6b3918cf8f70854e3626d"`
Dec 05 08:51:33.311 INFO [stderr] usermod: no changes
Dec 05 08:51:33.378 INFO [stderr]     Checking proc-macro2 v0.3.8
Dec 05 08:51:34.247 INFO [stderr]     Checking quote v0.5.2
Dec 05 08:51:34.895 INFO [stderr]     Checking syn v0.13.11
Dec 05 08:51:41.500 INFO [stderr]     Checking prometheus-static-metric v0.1.4 (/source)
Dec 05 08:51:42.263 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 08:51:42.263 INFO [stderr]   --> src/lib.rs:22:1
Dec 05 08:51:42.263 INFO [stderr]    |
Dec 05 08:51:42.263 INFO [stderr] 22 | #[macro_use]
Dec 05 08:51:42.264 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 08:51:42.264 INFO [stderr]    |
Dec 05 08:51:42.264 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:51:42.264 INFO [stderr] 
Dec 05 08:51:42.323 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 08:51:42.323 INFO [stderr]   --> src/lib.rs:22:1
Dec 05 08:51:42.323 INFO [stderr]    |
Dec 05 08:51:42.323 INFO [stderr] 22 | #[macro_use]
Dec 05 08:51:42.323 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 08:51:42.323 INFO [stderr]    |
Dec 05 08:51:42.323 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:51:42.323 INFO [stderr] 
Dec 05 08:51:42.678 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 08:51:42.678 INFO [stderr]   --> src/lib.rs:14:12
Dec 05 08:51:42.678 INFO [stderr]    |
Dec 05 08:51:42.678 INFO [stderr] 14 | #![feature(proc_macro)]
Dec 05 08:51:42.678 INFO [stderr]    |            ^^^^^^^^^^
Dec 05 08:51:42.678 INFO [stderr]    |
Dec 05 08:51:42.678 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 08:51:42.678 INFO [stderr] 
Dec 05 08:51:42.779 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 08:51:42.779 INFO [stderr]   --> src/lib.rs:14:12
Dec 05 08:51:42.779 INFO [stderr]    |
Dec 05 08:51:42.779 INFO [stderr] 14 | #![feature(proc_macro)]
Dec 05 08:51:42.779 INFO [stderr]    |            ^^^^^^^^^^
Dec 05 08:51:42.779 INFO [stderr]    |
Dec 05 08:51:42.779 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 08:51:42.779 INFO [stderr] 
Dec 05 08:51:42.825 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.50s
Dec 05 08:51:42.832 INFO [stderr] su: No module specific data is present
Dec 05 08:51:43.602 INFO running `"docker" "inspect" "2d9d295c55fc27757d9dd0959899a57786e0054211e6b3918cf8f70854e3626d"`
Dec 05 08:51:43.941 INFO running `"docker" "rm" "-f" "2d9d295c55fc27757d9dd0959899a57786e0054211e6b3918cf8f70854e3626d"`
Dec 05 08:51:44.283 INFO [stdout] 2d9d295c55fc27757d9dd0959899a57786e0054211e6b3918cf8f70854e3626d