Dec 12 05:54:26.623 INFO checking tracetree-0.1.5 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 05:54:26.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 05:54:27.045 INFO [stdout] 81d54aed1f9a23e85aaa4bde088d92105fe0dc898383b3a6f5ea307e95c52736
Dec 12 05:54:27.048 INFO running `"docker" "start" "-a" "81d54aed1f9a23e85aaa4bde088d92105fe0dc898383b3a6f5ea307e95c52736"`
Dec 12 05:54:28.302 INFO [stderr] usermod: no changes
Dec 12 05:54:28.543 INFO [stderr]     Checking indextree v1.3.0
Dec 12 05:54:28.552 INFO [stderr]     Checking nix v0.8.1
Dec 12 05:54:28.556 INFO [stderr]     Checking spawn-ptrace v0.1.1
Dec 12 05:54:28.556 INFO [stderr]     Checking chrono v0.3.0
Dec 12 05:54:33.680 INFO [stderr]     Checking tracetree v0.1.5 (/source)
Dec 12 05:54:38.508 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
Dec 12 05:54:38.528 INFO [stderr] su: No module specific data is present
Dec 12 05:54:39.002 INFO running `"docker" "inspect" "81d54aed1f9a23e85aaa4bde088d92105fe0dc898383b3a6f5ea307e95c52736"`
Dec 12 05:54:39.121 INFO running `"docker" "rm" "-f" "81d54aed1f9a23e85aaa4bde088d92105fe0dc898383b3a6f5ea307e95c52736"`
Dec 12 05:54:39.224 INFO [stdout] 81d54aed1f9a23e85aaa4bde088d92105fe0dc898383b3a6f5ea307e95c52736