Dec 17 19:06:24.789 INFO checking mwilliamson/rewrite-c-strings against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:06:24.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/mwilliamson/rewrite-c-strings:/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 17 19:06:25.022 INFO [stdout] e768356971e89b444aabcd1cb13e2444d9470ff136472034ad2d7ebecf82b9d6
Dec 17 19:06:25.034 INFO running `"docker" "start" "-a" "e768356971e89b444aabcd1cb13e2444d9470ff136472034ad2d7ebecf82b9d6"`
Dec 17 19:06:25.856 INFO [stderr]     Checking unicode-segmentation v1.0.1
Dec 17 19:06:25.856 INFO [stderr]     Checking memmap v0.5.0
Dec 17 19:06:26.396 INFO [stderr]     Checking clap v2.20.0
Dec 17 19:06:31.276 INFO [stderr]     Checking rewrite-c-strings v0.1.0 (/opt/crater/workdir)
Dec 17 19:06:31.807 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.99s
Dec 17 19:06:33.145 INFO running `"docker" "inspect" "e768356971e89b444aabcd1cb13e2444d9470ff136472034ad2d7ebecf82b9d6"`
Dec 17 19:06:33.442 INFO running `"docker" "rm" "-f" "e768356971e89b444aabcd1cb13e2444d9470ff136472034ad2d7ebecf82b9d6"`
Dec 17 19:06:33.748 INFO [stdout] e768356971e89b444aabcd1cb13e2444d9470ff136472034ad2d7ebecf82b9d6