Dec 12 06:59:32.559 INFO checking stacktrace-0.2.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 06:59:32.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 06:59:33.000 INFO [stdout] 64975a5f4a2ee235477e59806d23bb26964be5abb0f22720668f94c6149c58a3
Dec 12 06:59:33.002 INFO running `"docker" "start" "-a" "64975a5f4a2ee235477e59806d23bb26964be5abb0f22720668f94c6149c58a3"`
Dec 12 06:59:34.532 INFO [stderr] usermod: no changes
Dec 12 06:59:34.632 INFO [stderr]     Checking stacktrace v0.2.1 (/source)
Dec 12 06:59:37.720 INFO [stderr] warning: unused import: `std::fmt::Debug`
Dec 12 06:59:37.720 INFO [stderr]  --> examples/using_result/main.rs:3:5
Dec 12 06:59:37.720 INFO [stderr]   |
Dec 12 06:59:37.720 INFO [stderr] 3 | use std::fmt::Debug;
Dec 12 06:59:37.720 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 12 06:59:37.720 INFO [stderr]   |
Dec 12 06:59:37.720 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 06:59:37.720 INFO [stderr] 
Dec 12 06:59:37.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
Dec 12 06:59:37.896 INFO [stderr] su: No module specific data is present
Dec 12 06:59:38.724 INFO running `"docker" "inspect" "64975a5f4a2ee235477e59806d23bb26964be5abb0f22720668f94c6149c58a3"`
Dec 12 06:59:38.984 INFO running `"docker" "rm" "-f" "64975a5f4a2ee235477e59806d23bb26964be5abb0f22720668f94c6149c58a3"`
Dec 12 06:59:39.358 INFO [stdout] 64975a5f4a2ee235477e59806d23bb26964be5abb0f22720668f94c6149c58a3