Dec 05 04:58:01.595 INFO checking ubend-0.2.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 04:58:01.595 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 04:58:02.017 INFO [stdout] d0e8fc0e1e6c70e00274cef7f7a2ab7c1e0c18b60117338f3189cb87b144ca13
Dec 05 04:58:02.019 INFO running `"docker" "start" "-a" "d0e8fc0e1e6c70e00274cef7f7a2ab7c1e0c18b60117338f3189cb87b144ca13"`
Dec 05 04:58:03.127 INFO [stderr] usermod: no changes
Dec 05 04:58:03.162 INFO [stderr]    Compiling libc v0.2.44
Dec 05 04:58:05.183 INFO [stderr]     Checking ubend v0.2.1 (/source)
Dec 05 04:58:06.966 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:58:06.966 INFO [stderr]    --> tests/main.rs:180:3
Dec 05 04:58:06.966 INFO [stderr]     |
Dec 05 04:58:06.966 INFO [stderr] 180 |         write!(stream, "hello world");
Dec 05 04:58:06.966 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:06.966 INFO [stderr]     |
Dec 05 04:58:06.966 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 04:58:06.966 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:58:06.966 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 04:58:06.966 INFO [stderr] 
Dec 05 04:58:06.966 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:58:06.966 INFO [stderr]    --> tests/main.rs:211:3
Dec 05 04:58:06.966 INFO [stderr]     |
Dec 05 04:58:06.966 INFO [stderr] 211 |         write!(stream, "spam\neggs\nspam spam\n");
Dec 05 04:58:06.966 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:06.966 INFO [stderr]     |
Dec 05 04:58:06.966 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:58:06.966 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 04:58:06.966 INFO [stderr] 
Dec 05 04:58:06.989 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
Dec 05 04:58:06.991 INFO [stderr] su: No module specific data is present
Dec 05 04:58:07.264 INFO running `"docker" "inspect" "d0e8fc0e1e6c70e00274cef7f7a2ab7c1e0c18b60117338f3189cb87b144ca13"`
Dec 05 04:58:07.350 INFO running `"docker" "rm" "-f" "d0e8fc0e1e6c70e00274cef7f7a2ab7c1e0c18b60117338f3189cb87b144ca13"`
Dec 05 04:58:07.479 INFO [stdout] d0e8fc0e1e6c70e00274cef7f7a2ab7c1e0c18b60117338f3189cb87b144ca13