Dec 12 08:00:45.173 INFO checking safety-0.1.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 08:00:45.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12 08:00:45.734 INFO [stdout] a67e282372d54218a9395016215f6a73b03428699aa137a2d22f529d829f5478
Dec 12 08:00:45.736 INFO running `"docker" "start" "-a" "a67e282372d54218a9395016215f6a73b03428699aa137a2d22f529d829f5478"`
Dec 12 08:00:46.936 INFO [stderr] usermod: no changes
Dec 12 08:00:47.164 INFO [stderr]     Checking syntex_pos v0.52.0
Dec 12 08:00:47.164 INFO [stderr]    Compiling syn v0.10.8
Dec 12 08:00:48.573 INFO [stderr]     Checking syntex_errors v0.52.0
Dec 12 08:00:50.855 INFO [stderr]     Checking syntex_syntax v0.52.0
Dec 12 08:00:54.772 INFO [stderr]    Compiling serde_codegen_internals v0.11.3
Dec 12 08:00:58.073 INFO [stderr]    Compiling serde_codegen v0.8.23
Dec 12 08:01:02.900 INFO [stderr]    Compiling serde_derive v0.8.23
Dec 12 08:01:11.036 INFO [stderr]     Checking syntex v0.52.0
Dec 12 08:01:12.404 INFO [stderr]     Checking safety v0.1.0 (/source)
Dec 12 08:01:15.820 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 12 08:01:15.820 INFO [stderr]  --> src/lib.rs:1:12
Dec 12 08:01:15.820 INFO [stderr]   |
Dec 12 08:01:15.820 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 12 08:01:15.820 INFO [stderr]   |            ^^^^^^^^^^
Dec 12 08:01:15.820 INFO [stderr]   |
Dec 12 08:01:15.820 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 08:01:15.820 INFO [stderr] 
Dec 12 08:01:16.072 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 12 08:01:16.072 INFO [stderr]  --> src/lib.rs:1:12
Dec 12 08:01:16.072 INFO [stderr]   |
Dec 12 08:01:16.072 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 12 08:01:16.072 INFO [stderr]   |            ^^^^^^^^^^
Dec 12 08:01:16.072 INFO [stderr]   |
Dec 12 08:01:16.072 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 08:01:16.072 INFO [stderr] 
Dec 12 08:01:19.636 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 12 08:01:19.636 INFO [stderr]  --> src/main.rs:1:12
Dec 12 08:01:19.636 INFO [stderr]   |
Dec 12 08:01:19.636 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 12 08:01:19.636 INFO [stderr]   |            ^^^^^^^^^^
Dec 12 08:01:19.636 INFO [stderr]   |
Dec 12 08:01:19.636 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 08:01:19.636 INFO [stderr] 
Dec 12 08:01:20.116 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 12 08:01:20.116 INFO [stderr]  --> src/main.rs:1:12
Dec 12 08:01:20.116 INFO [stderr]   |
Dec 12 08:01:20.116 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 12 08:01:20.116 INFO [stderr]   |            ^^^^^^^^^^
Dec 12 08:01:20.116 INFO [stderr]   |
Dec 12 08:01:20.116 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 08:01:20.116 INFO [stderr] 
Dec 12 08:01:20.172 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.20s
Dec 12 08:01:20.180 INFO [stderr] su: No module specific data is present
Dec 12 08:01:21.339 INFO running `"docker" "inspect" "a67e282372d54218a9395016215f6a73b03428699aa137a2d22f529d829f5478"`
Dec 12 08:01:21.546 INFO running `"docker" "rm" "-f" "a67e282372d54218a9395016215f6a73b03428699aa137a2d22f529d829f5478"`
Dec 12 08:01:21.900 INFO [stdout] a67e282372d54218a9395016215f6a73b03428699aa137a2d22f529d829f5478