Dec 05 08:51:33.252 INFO checking prometheus-static-metric-0.1.4 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 08:51:33.252 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 08:51:33.526 INFO [stdout] 541cf668a64be0fe0e2492558d86c9be364a0f42cbcad9047f62f1ec46baea63
Dec 05 08:51:33.527 INFO running `"docker" "start" "-a" "541cf668a64be0fe0e2492558d86c9be364a0f42cbcad9047f62f1ec46baea63"`
Dec 05 08:51:34.350 INFO [stderr] usermod: no changes
Dec 05 08:51:34.453 INFO [stderr]    Compiling prometheus v0.4.2
Dec 05 08:51:34.455 INFO [stderr]     Checking proc-macro2 v0.3.8
Dec 05 08:51:35.865 INFO [stderr]     Checking quote v0.5.2
Dec 05 08:51:37.000 INFO [stderr]     Checking syn v0.13.11
Dec 05 08:51:44.315 INFO [stderr]     Checking prometheus-static-metric v0.1.4 (/source)
Dec 05 08:51:45.079 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 08:51:45.079 INFO [stderr]   --> src/lib.rs:22:1
Dec 05 08:51:45.079 INFO [stderr]    |
Dec 05 08:51:45.079 INFO [stderr] 22 | #[macro_use]
Dec 05 08:51:45.079 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 08:51:45.079 INFO [stderr]    |
Dec 05 08:51:45.079 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:51:45.079 INFO [stderr] 
Dec 05 08:51:45.268 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 08:51:45.268 INFO [stderr]   --> src/lib.rs:22:1
Dec 05 08:51:45.268 INFO [stderr]    |
Dec 05 08:51:45.268 INFO [stderr] 22 | #[macro_use]
Dec 05 08:51:45.268 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 08:51:45.268 INFO [stderr]    |
Dec 05 08:51:45.268 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:51:45.268 INFO [stderr] 
Dec 05 08:51:45.427 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 08:51:45.427 INFO [stderr]   --> src/lib.rs:14:12
Dec 05 08:51:45.427 INFO [stderr]    |
Dec 05 08:51:45.427 INFO [stderr] 14 | #![feature(proc_macro)]
Dec 05 08:51:45.427 INFO [stderr]    |            ^^^^^^^^^^
Dec 05 08:51:45.427 INFO [stderr]    |
Dec 05 08:51:45.427 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 08:51:45.427 INFO [stderr] 
Dec 05 08:51:45.617 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 05 08:51:45.617 INFO [stderr]   --> src/lib.rs:14:12
Dec 05 08:51:45.617 INFO [stderr]    |
Dec 05 08:51:45.617 INFO [stderr] 14 | #![feature(proc_macro)]
Dec 05 08:51:45.617 INFO [stderr]    |            ^^^^^^^^^^
Dec 05 08:51:45.617 INFO [stderr]    |
Dec 05 08:51:45.617 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 05 08:51:45.617 INFO [stderr] 
Dec 05 08:51:45.666 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.27s
Dec 05 08:51:45.666 INFO [stderr] su: No module specific data is present
Dec 05 08:51:46.439 INFO running `"docker" "inspect" "541cf668a64be0fe0e2492558d86c9be364a0f42cbcad9047f62f1ec46baea63"`
Dec 05 08:51:46.650 INFO running `"docker" "rm" "-f" "541cf668a64be0fe0e2492558d86c9be364a0f42cbcad9047f62f1ec46baea63"`
Dec 05 08:51:46.900 INFO [stdout] 541cf668a64be0fe0e2492558d86c9be364a0f42cbcad9047f62f1ec46baea63