Dec 19 12:10:20.272 INFO checking mwilliamson/rewrite-c-strings against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:10:20.272 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:10:20.488 INFO [stdout] 4abee09825d75623acddf0c1a1a43855ebda26b41bbac96fa630f4d0261a0129
Dec 19 12:10:20.494 INFO running `"docker" "start" "-a" "4abee09825d75623acddf0c1a1a43855ebda26b41bbac96fa630f4d0261a0129"`
Dec 19 12:10:21.664 INFO [stderr]     Checking unicode-segmentation v1.0.1
Dec 19 12:10:21.664 INFO [stderr]     Checking memmap v0.5.0
Dec 19 12:10:22.116 INFO [stderr]     Checking clap v2.20.0
Dec 19 12:10:26.620 INFO [stderr]     Checking rewrite-c-strings v0.1.0 (/opt/crater/workdir)
Dec 19 12:10:27.087 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.45s
Dec 19 12:10:27.674 INFO running `"docker" "inspect" "4abee09825d75623acddf0c1a1a43855ebda26b41bbac96fa630f4d0261a0129"`
Dec 19 12:10:27.846 INFO running `"docker" "rm" "-f" "4abee09825d75623acddf0c1a1a43855ebda26b41bbac96fa630f4d0261a0129"`
Dec 19 12:10:27.975 INFO [stdout] 4abee09825d75623acddf0c1a1a43855ebda26b41bbac96fa630f4d0261a0129