Dec 17 13:51:27.169 INFO checking th0rex/insert_unicode against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:51:27.169 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/th0rex/insert_unicode:/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 13:51:27.549 INFO [stdout] 41b5efc2110817cdfece8581f53512e3872eff4a234d6be556cd30a69060479c
Dec 17 13:51:27.552 INFO running `"docker" "start" "-a" "41b5efc2110817cdfece8581f53512e3872eff4a234d6be556cd30a69060479c"`
Dec 17 13:51:29.115 INFO [stderr]    Compiling libc v0.2.44
Dec 17 13:51:29.125 INFO [stderr]     Checking rand_isaac v0.1.1
Dec 17 13:51:31.256 INFO [stderr]     Checking rand v0.6.1
Dec 17 13:51:33.687 INFO [stderr]     Checking insert_unicode v0.1.0 (/opt/crater/workdir)
Dec 17 13:51:34.152 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.13s
Dec 17 13:51:35.510 INFO running `"docker" "inspect" "41b5efc2110817cdfece8581f53512e3872eff4a234d6be556cd30a69060479c"`
Dec 17 13:51:35.817 INFO running `"docker" "rm" "-f" "41b5efc2110817cdfece8581f53512e3872eff4a234d6be556cd30a69060479c"`
Dec 17 13:51:36.168 INFO [stdout] 41b5efc2110817cdfece8581f53512e3872eff4a234d6be556cd30a69060479c