Dec 12 05:35:11.496 INFO checking ubend-0.2.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 05:35:11.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05:35:11.764 INFO [stdout] a90661c3337d12014418e181c056b8ff9619fadedf04a1d5127f7887e57c9259
Dec 12 05:35:11.767 INFO running `"docker" "start" "-a" "a90661c3337d12014418e181c056b8ff9619fadedf04a1d5127f7887e57c9259"`
Dec 12 05:35:12.435 INFO [stderr] usermod: no changes
Dec 12 05:35:12.471 INFO [stderr]    Compiling libc v0.2.45
Dec 12 05:35:14.332 INFO [stderr]     Checking ubend v0.2.1 (/source)
Dec 12 05:35:16.296 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 05:35:16.296 INFO [stderr]    --> tests/main.rs:180:3
Dec 12 05:35:16.296 INFO [stderr]     |
Dec 12 05:35:16.296 INFO [stderr] 180 |         write!(stream, "hello world");
Dec 12 05:35:16.296 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 05:35:16.296 INFO [stderr]     |
Dec 12 05:35:16.296 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 05:35:16.296 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 05:35:16.296 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 12 05:35:16.296 INFO [stderr] 
Dec 12 05:35:16.296 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 05:35:16.296 INFO [stderr]    --> tests/main.rs:211:3
Dec 12 05:35:16.296 INFO [stderr]     |
Dec 12 05:35:16.296 INFO [stderr] 211 |         write!(stream, "spam\neggs\nspam spam\n");
Dec 12 05:35:16.296 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 05:35:16.296 INFO [stderr]     |
Dec 12 05:35:16.296 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 05:35:16.296 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 12 05:35:16.296 INFO [stderr] 
Dec 12 05:35:16.310 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
Dec 12 05:35:16.312 INFO [stderr] su: No module specific data is present
Dec 12 05:35:16.930 INFO running `"docker" "inspect" "a90661c3337d12014418e181c056b8ff9619fadedf04a1d5127f7887e57c9259"`
Dec 12 05:35:17.082 INFO running `"docker" "rm" "-f" "a90661c3337d12014418e181c056b8ff9619fadedf04a1d5127f7887e57c9259"`
Dec 12 05:35:17.198 INFO [stdout] a90661c3337d12014418e181c056b8ff9619fadedf04a1d5127f7887e57c9259