Dec 05 05:09:41.189 INFO checking treeflection_derive-0.3.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 05:09:41.189 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 05:09:41.447 INFO [stdout] 904b8c64d5f4b883354a022d4c9db7128be29bce03066d9aa279ed9621c45d78
Dec 05 05:09:41.452 INFO running `"docker" "start" "-a" "904b8c64d5f4b883354a022d4c9db7128be29bce03066d9aa279ed9621c45d78"`
Dec 05 05:09:42.076 INFO [stderr] usermod: no changes
Dec 05 05:09:42.215 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 05 05:09:46.159 INFO [stderr]     Checking quote v0.6.10
Dec 05 05:09:46.899 INFO [stderr]     Checking syn v0.15.22
Dec 05 05:09:52.275 INFO [stderr]     Checking treeflection_derive v0.3.2 (/source)
Dec 05 05:09:57.870 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 05 05:10:08.252 INFO [stderr]     Checking treeflection v0.1.31
Dec 05 05:10:12.836 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.71s
Dec 05 05:10:12.850 INFO [stderr] su: No module specific data is present
Dec 05 05:10:13.882 INFO running `"docker" "inspect" "904b8c64d5f4b883354a022d4c9db7128be29bce03066d9aa279ed9621c45d78"`
Dec 05 05:10:14.207 INFO running `"docker" "rm" "-f" "904b8c64d5f4b883354a022d4c9db7128be29bce03066d9aa279ed9621c45d78"`
Dec 05 05:10:14.495 INFO [stdout] 904b8c64d5f4b883354a022d4c9db7128be29bce03066d9aa279ed9621c45d78