Nov 29 23:05:49.635 INFO checking luotaoyeah/learning-rust against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 23:05:49.635 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 23:05:49.988 INFO [stdout] 7e6f1671ef3f1d9f5ee6db2c99c90e0947c9487fec6b707205df70be0f6daf7c
Nov 29 23:05:49.990 INFO running `"docker" "start" "-a" "7e6f1671ef3f1d9f5ee6db2c99c90e0947c9487fec6b707205df70be0f6daf7c"`
Nov 29 23:05:50.700 INFO [stderr] usermod: no changes
Nov 29 23:05:50.780 INFO [stderr]     Checking rand_core v0.3.0
Nov 29 23:05:50.788 INFO [stderr]     Checking libc v0.2.43
Nov 29 23:05:51.558 INFO [stderr]     Checking rand_core v0.2.2
Nov 29 23:05:52.218 INFO [stderr]     Checking rand v0.5.5
Nov 29 23:05:54.685 INFO [stderr]     Checking learning-rust v0.1.0 (/source)
Nov 29 23:05:55.364 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 4.64s
Nov 29 23:05:55.372 INFO [stderr] su: No module specific data is present
Nov 29 23:05:56.064 INFO running `"docker" "inspect" "7e6f1671ef3f1d9f5ee6db2c99c90e0947c9487fec6b707205df70be0f6daf7c"`
Nov 29 23:05:56.372 INFO running `"docker" "rm" "-f" "7e6f1671ef3f1d9f5ee6db2c99c90e0947c9487fec6b707205df70be0f6daf7c"`
Nov 29 23:05:56.636 INFO [stdout] 7e6f1671ef3f1d9f5ee6db2c99c90e0947c9487fec6b707205df70be0f6daf7c