Dec 18 10:22:44.904 INFO checking test_double-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:22:44.905 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/test_double/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:22:45.422 INFO [stdout] 75db927ea024022e6ac9a03a2f4fe8d8a1b275369db15f2230b66e441a137bf8
Dec 18 10:22:45.424 INFO running `"docker" "start" "-a" "75db927ea024022e6ac9a03a2f4fe8d8a1b275369db15f2230b66e441a137bf8"`
Dec 18 10:22:47.072 INFO [stderr]     Checking syn v0.12.15
Dec 18 10:22:51.657 INFO [stderr]     Checking test_double v0.1.1 (/opt/crater/workdir)
Dec 18 10:22:52.016 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 18 10:22:52.016 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 10:22:52.016 INFO [stderr]   |
Dec 18 10:22:52.016 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 18 10:22:52.016 INFO [stderr]   |            ^^^^^^^^^^
Dec 18 10:22:52.016 INFO [stderr]   |
Dec 18 10:22:52.016 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:22:52.016 INFO [stderr] 
Dec 18 10:22:52.064 INFO [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
Dec 18 10:22:52.064 INFO [stderr]  --> src/lib.rs:1:12
Dec 18 10:22:52.064 INFO [stderr]   |
Dec 18 10:22:52.064 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 18 10:22:52.064 INFO [stderr]   |            ^^^^^^^^^^
Dec 18 10:22:52.064 INFO [stderr]   |
Dec 18 10:22:52.064 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:22:52.064 INFO [stderr] 
Dec 18 10:22:52.085 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
Dec 18 10:22:52.474 INFO running `"docker" "inspect" "75db927ea024022e6ac9a03a2f4fe8d8a1b275369db15f2230b66e441a137bf8"`
Dec 18 10:22:52.574 INFO running `"docker" "rm" "-f" "75db927ea024022e6ac9a03a2f4fe8d8a1b275369db15f2230b66e441a137bf8"`
Dec 18 10:22:52.681 INFO [stdout] 75db927ea024022e6ac9a03a2f4fe8d8a1b275369db15f2230b66e441a137bf8