Dec 19 11:15:17.377 INFO checking panzi/rust-ubend against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:15:17.377 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/panzi/rust-ubend:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:15:17.784 INFO [stdout] 053c539ccf14f7fc4b946c36f9d6688e86d0fdbfc3d344c4570f6d5ce75b71fa
Dec 19 11:15:17.786 INFO running `"docker" "start" "-a" "053c539ccf14f7fc4b946c36f9d6688e86d0fdbfc3d344c4570f6d5ce75b71fa"`
Dec 19 11:15:19.224 INFO [stderr]     Checking libc v0.2.43
Dec 19 11:15:20.405 INFO [stderr]     Checking ubend v0.2.1 (/opt/crater/workdir)
Dec 19 11:15:21.755 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:15:21.755 INFO [stderr]    --> tests/main.rs:180:3
Dec 19 11:15:21.755 INFO [stderr]     |
Dec 19 11:15:21.755 INFO [stderr] 180 |         write!(stream, "hello world");
Dec 19 11:15:21.755 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:21.755 INFO [stderr]     |
Dec 19 11:15:21.755 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 11:15:21.755 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:15:21.755 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 19 11:15:21.755 INFO [stderr] 
Dec 19 11:15:21.755 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:15:21.755 INFO [stderr]    --> tests/main.rs:211:3
Dec 19 11:15:21.755 INFO [stderr]     |
Dec 19 11:15:21.755 INFO [stderr] 211 |         write!(stream, "spam\neggs\nspam spam\n");
Dec 19 11:15:21.755 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:21.755 INFO [stderr]     |
Dec 19 11:15:21.755 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:15:21.755 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 19 11:15:21.755 INFO [stderr] 
Dec 19 11:15:21.781 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
Dec 19 11:15:22.548 INFO running `"docker" "inspect" "053c539ccf14f7fc4b946c36f9d6688e86d0fdbfc3d344c4570f6d5ce75b71fa"`
Dec 19 11:15:22.779 INFO running `"docker" "rm" "-f" "053c539ccf14f7fc4b946c36f9d6688e86d0fdbfc3d344c4570f6d5ce75b71fa"`
Dec 19 11:15:23.132 INFO [stdout] 053c539ccf14f7fc4b946c36f9d6688e86d0fdbfc3d344c4570f6d5ce75b71fa