Dec 18 12:35:40.323 INFO checking ramp-0.5.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:35:40.324 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/ramp/0.5.1:/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 12:35:40.682 INFO [stdout] d6eb067417f91327f6e3b766214552887d295ba781ed6bdc46ef00e4d24984cb
Dec 18 12:35:40.692 INFO running `"docker" "start" "-a" "d6eb067417f91327f6e3b766214552887d295ba781ed6bdc46ef00e4d24984cb"`
Dec 18 12:35:41.852 INFO [stderr]    Compiling rustc-cfg v0.2.0
Dec 18 12:35:41.852 INFO [stderr]     Checking ieee754 v0.2.2
Dec 18 12:35:41.860 INFO [stderr]    Compiling num-bigint v0.1.44
Dec 18 12:35:45.452 INFO [stderr]    Compiling ramp v0.5.1 (/opt/crater/workdir)
Dec 18 12:35:50.460 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.72s
Dec 18 12:35:50.726 INFO running `"docker" "inspect" "d6eb067417f91327f6e3b766214552887d295ba781ed6bdc46ef00e4d24984cb"`
Dec 18 12:35:50.817 INFO running `"docker" "rm" "-f" "d6eb067417f91327f6e3b766214552887d295ba781ed6bdc46ef00e4d24984cb"`
Dec 18 12:35:50.898 INFO [stdout] d6eb067417f91327f6e3b766214552887d295ba781ed6bdc46ef00e4d24984cb